/* 
 * 똑톡튜터 똑톡AI유터 - Homepage Stylesheet
 * Figma Design Implementation - Red Theme
 */

/* ===== CSS Variables ===== */
:root {
    /* Primary Colors - Red Theme */
    --primary-color: #E50914;
    --primary-dark: #C7000D;
    --primary-light: #FF1A25;

    /* Secondary Colors */
    --secondary-color: #1a1a2e;
    --secondary-dark: #0f0f1a;

    /* Feature Colors */
    --color-ai: #3B82F6;
    --color-native: #E50914;
    --color-review: #10B981;

    /* Background Colors */
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-gray: #F3F4F6;
    --bg-dark: #1a1a2e;
    --bg-darker: #0f0f1a;

    /* Text Colors */
    --text-dark: #1F2937;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    --text-white: #FFFFFF;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-primary: 0 10px 30px rgba(229, 9, 20, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;

    /* Font */
    --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background: var(--bg-white);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
}

ul,
ol {
    list-style: none;
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-dark);
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

h4 {
    font-size: 1.125rem;
}

.text-primary {
    color: var(--primary-color);
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    background: transparent;
    transition: all var(--transition-normal);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-sm) 0;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    color: var(--text-white);
}

.header.scrolled .logo-text {
    color: var(--text-dark);
}

.logo-topline {
    font-size: 0.9rem;
    font-weight: 600;
    opacity: 0.82;
    margin-bottom: 0.1rem;
}

.logo-main {
    font-size: 1.65rem;
    font-weight: 800;
    color: #FFD700;
}

.header.scrolled .logo-main {
    color: inherit;
    opacity: 0.82;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

.header.scrolled .nav-link {
    color: var(--text-gray);
}

.header.scrolled .nav-link:hover {
    color: var(--primary-color);
}

.nav-buttons {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.mobile-menu-btn {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-white);
}

.header.scrolled .mobile-menu-btn {
    color: var(--text-dark);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.btn-outline-white {
    background: transparent;
    color: var(--text-white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-white);
}

.header.scrolled .btn-outline-white {
    color: var(--text-gray);
    border-color: var(--text-light);
}

.header.scrolled .btn-outline-white:hover {
    color: var(--text-dark);
    border-color: var(--text-dark);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

.btn-cta {
    background: var(--primary-color);
    color: var(--text-white);
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.1rem;
    border-radius: var(--radius-xl);
}

.btn-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-primary);
}

.btn-cta-white {
    background: var(--text-white);
    color: var(--primary-color);
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.1rem;
    border-radius: var(--radius-xl);
}

.btn-cta-white:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-cta-trial {
    background: #000000;
    color: #FFD700;
}

.btn-cta-trial:hover {
    background: #111111;
    color: #FFD700;
}

/* ===== Hero Section ===== */
.hero {
    position: sticky;
    top: 0;
    min-height: 125vh;
    display: flex;
    align-items: center;
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    overflow: hidden;
    z-index: 1;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: right center;
}

/* Gradient fade effect - clear on right, slightly faded on left */
.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to right,
            rgba(26, 26, 46, 0.75) 0%,
            rgba(26, 26, 46, 0.5) 30%,
            rgba(26, 26, 46, 0.2) 60%,
            transparent 80%);
    z-index: 1;
}

/* Blur effect on entire background */
.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* Keep a light overlay without expensive backdrop blur compositing. */
    background: rgba(12, 20, 35, 0.14);
    z-index: 2;
    pointer-events: none;
}

.hero-content {
    display: block;
    max-width: 600px;
    position: relative;
    z-index: 3;
}

/* Grid layout for hero with phone */
.hero-content.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    max-width: 100%;
    align-items: center;
    transform: translateY(-100px);
}

/* Hero Phone Mockup with Video */
.hero-phone {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.phone-mockup-container {
    position: relative;
    width: 380px;
    height: auto;
    transform: translateY(0);
    animation: heroPhoneFloat 8s ease-in-out infinite;
    filter: none;
    will-change: transform;
}

.phone-frame {
    position: relative;
    width: 100%;
    height: auto;
    z-index: 2;
    pointer-events: none;
}

.phone-video {
    position: absolute;
    /* Adjust these values to match the screen area of your phone_outline.png */
    top: 1.5%;
    left: 5%;
    width: 90%;
    height: 97%;
    object-fit: cover;
    border-radius: 36px;
    z-index: 3;
}

/* Video Sound Toggle Button */
.video-sound-btn {
    position: absolute;
    top: 2.5%;
    right: 7%;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #333333;
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    z-index: 4;
    transition: all var(--transition-fast);
}

.video-sound-btn:hover {
    background: rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
}

.video-sound-btn.unmuted {
    background: var(--primary-color);
}

@keyframes heroPhoneFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* Responsive: Stack on mobile */
@media (max-width: 900px) {
    .hero-content.hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        transform: none;
    }

    .hero-phone {
        order: -1;
        margin-bottom: var(--spacing-xl);
    }

    .phone-mockup-container {
        width: 220px;
        transform: none;
        animation: none;
    }

    .hero-checklist {
        display: inline-block;
        text-align: left;
    }
}

.hero-text h1 {
    color: var(--text-white);
    margin-bottom: var(--spacing-lg);
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.3;
}

.hero-text h1 .highlight {
    color: var(--primary-color);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-checklist {
    margin-bottom: var(--spacing-2xl);
}

.hero-checklist li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-sm);
    font-size: 1.05rem;
}

.hero-checklist li i {
    color: var(--color-review);
    font-size: 1.2rem;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.phone-mockup {
    position: relative;
    transform: rotateY(-15deg) rotateX(5deg) rotateZ(15deg);
    transform-style: preserve-3d;
    animation: phoneFloat 6s ease-in-out infinite;
}

/* Dynamic shadow that responds to floating animation */
.phone-mockup::before {
    content: '';
    position: absolute;
    bottom: -60px;
    left: 50%;
    width: 200px;
    height: 20px;
    background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.4) 0%, transparent 70%);
    border-radius: 50%;
    transform: translateX(-50%) rotateX(80deg);
    animation: phoneShadow 6s ease-in-out infinite;
    z-index: -1;
}

.phone-mockup img {
    max-width: 320px;
    width: 100%;
    border-radius: 40px;
    box-shadow:
        0 25px 50px -12px rgba(0, 0, 0, 0.5),
        0 0 0 2px rgba(255, 255, 255, 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.1),
        0 0 80px rgba(229, 9, 20, 0.15);
    background: linear-gradient(135deg, #1a1a2e, #0f0f1a);
    padding: 3px;
}

/* Phone floating animation */
@keyframes phoneFloat {

    0%,
    100% {
        transform: rotateY(-15deg) rotateX(5deg) rotateZ(15deg) translateY(0);
    }

    50% {
        transform: rotateY(-15deg) rotateX(5deg) rotateZ(15deg) translateY(-25px);
    }
}

/* Shadow animation - physics based: smaller/lighter when up, larger/darker when down */
@keyframes phoneShadow {

    0%,
    100% {
        /* Phone is down - shadow is larger, darker, closer */
        width: 200px;
        height: 20px;
        bottom: -60px;
        opacity: 1;
        filter: blur(15px);
    }

    50% {
        /* Phone is up - shadow is smaller, lighter, further away */
        width: 140px;
        height: 12px;
        bottom: -40px;
        opacity: 0.5;
        filter: blur(25px);
    }
}

/* ===== Section Styles ===== */
.section {
    padding: var(--spacing-4xl) 0;
    position: relative;
    z-index: 2;
}

.section-white {
    background: var(--bg-white);
}

#system {
    background: rgb(239, 239, 239);
    padding-top: 0;
    margin-top: -24px;
}

#features {
    background: rgb(229, 229, 229);
    padding-bottom: var(--spacing-4xl);
}

#reviews {
    background: rgb(229, 229, 229);
    margin-top: -12px;
    padding-top: 12px;
}

#pricing {
    background: rgb(239, 239, 239);
    padding-top: 0;
}

.section-gray {
    background: var(--bg-gray);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

.section-header-system {
    text-align: left;
    max-width: 980px;
    margin: 0 auto var(--spacing-3xl);
    padding: 8px 0 22px;
    position: relative;
    transform: translateX(-50px);
    background: rgb(239, 239, 239);
    border-radius: 24px;
}

.section-header-system-visual {
    display: grid;
    grid-template-columns: minmax(0, 1fr) clamp(190px, 24vw, 340px);
    column-gap: clamp(14px, 2.4vw, 34px);
    align-items: end;
    position: relative;
    z-index: 5;
}

.section-header-system-visual .system-header-copy {
    min-width: 0;
}

.system-header-character-wrap {
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
    min-height: 100%;
}

.system-header-character {
    width: 100%;
    max-width: 340px;
    position: relative;
    z-index: 6;
    --system-char-x: 100px;
    --system-char-y: 160px;
    transform: translate(var(--system-char-x), var(--system-char-y)) scaleX(-1);
    animation: systemHeaderFloat 4.8s ease-in-out infinite;
    will-change: transform;
}

@keyframes systemHeaderFloat {

    0%,
    100% {
        transform: translate(var(--system-char-x), var(--system-char-y)) scaleX(-1);
    }

    50% {
        transform: translate(var(--system-char-x), calc(var(--system-char-y) - 18px)) scaleX(-1);
    }
}

.section-header-system::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 10px;
    height: 2px;
    background: linear-gradient(90deg, rgba(30, 136, 229, 0.95) 0%, rgba(30, 136, 229, 0.2) 72%, rgba(30, 136, 229, 0) 100%);
}

.system-header-kicker {
    display: inline-block;
    margin-bottom: 10px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #1e88e5;
    background: rgba(30, 136, 229, 0.12);
}

.section-header-system h2 {
    margin: 0;
    line-height: 1.12;
}

.system-header-dark {
    display: inline-block;
    font-size: clamp(1.95rem, 4.2vw, 3.55rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    color: #3b4556;
}

.system-header-accent {
    display: inline-block;
    margin-top: 2px;
    font-size: clamp(2.2rem, 5.1vw, 4.3rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    color: #1e9bff;
}

.section-header-system .system-header-subtitle {
    margin: 16px 0 0;
    max-width: none;
    font-size: clamp(1rem, 1.6vw, 1.35rem);
    font-weight: 700;
    color: #5f6b7d;
}

.section-header-feature {
    transform: translateX(-100px);
    margin-top: 24px;
    margin-left: 0;
    margin-right: 0;
    max-width: none;
    --feature-left-offset: 380px;
    padding-left: var(--feature-left-offset);
    background: transparent;
    border-radius: 0;
}

.section-header-feature .system-header-kicker,
.section-header-feature .feature-title-row h2,
.section-header-feature .system-header-subtitle {
    transform: translate(-50px, 50px);
}

.feature-title-row {
    display: block;
    position: relative;
    width: max-content;
    max-width: 100%;
}

.feature-title-row h2 {
    margin: 0;
    line-height: 1.12;
}

.feature-header-character {
    position: absolute;
    left: calc(var(--feature-left-offset) * -1);
    right: auto;
    bottom: -156px;
    width: clamp(285px, 29vw, 410px);
    height: auto;
    pointer-events: none;
}

.section-header-feature::after {
    display: none;
}

.section-label {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(229, 9, 20, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

/* ===== Reviews Header ===== */
.section-header-reviews {
    text-align: left;
    max-width: none;
    margin: 0 0 var(--spacing-3xl);
    background: rgb(229, 229, 229);
    border-radius: 24px;
    padding: 18px 22px;
}

.section-header-reviews h2 {
    margin: 0;
    line-height: 1.12;
}

.reviews-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    gap: clamp(10px, 1.8vw, 24px);
    margin-top: 0;
    width: max-content;
    max-width: 100%;
}

.reviews-copy {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transform: translateY(100px);
}

.reviews-header-character {
    width: clamp(190px, 22vw, 320px);
    height: auto;
    transform: none;
    pointer-events: none;
}

.section-header-reviews .system-header-subtitle {
    margin: 6px 0 0;
    max-width: none;
    text-align: left;
}

/* ===== Pricing Header ===== */
.section-header-pricing {
    text-align: right;
    max-width: none;
    margin: 0 0 var(--spacing-3xl);
    background: rgb(239, 239, 239);
    border-radius: 24px;
    padding: 18px 22px;
}

.section-header-pricing h2 {
    margin: 0;
    line-height: 1.12;
}

.pricing-title-row {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    gap: clamp(10px, 1.8vw, 24px);
    width: 100%;
    max-width: 100%;
    margin: 0;
}

.pricing-copy {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    transform: translateY(0);
}

.pricing-main-title {
    white-space: nowrap;
    font-size: clamp(1.6rem, 3.5vw, 3rem);
}

.section-header p.pricing-highlight {
    display: block;
    margin: 8px 0 0;
    line-height: 1.12;
    white-space: normal;
    max-width: 100%;
    text-align: right;
    font-size: clamp(1.75rem, 4vw, 3.4rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    color: #1e9bff;
}

.pricing-header-character {
    width: clamp(180px, 20vw, 300px);
    height: auto;
    transform: translateY(50px);
    pointer-events: none;
}

.section-header-pricing .system-header-subtitle {
    margin: 6px 0 0;
    max-width: none;
    text-align: right;
}

/* ===== 3-Step Learning System ===== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 320px));
    gap: 26px;
    justify-content: center;
    justify-items: stretch;
    position: relative;
    z-index: 1;
    isolation: isolate;
}

.step-card {
    --step-accent: #00a3be;
    --step-bg: #eafcfe;
    background: var(--step-accent);
    border-radius: 12px;
    border: none;
    padding: 28px 26px 26px;
    text-align: left;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: visible;
    min-height: 430px;
    width: 100%;
    max-width: none;
    opacity: 0;
    transform: translateY(30px);
    z-index: 2;
}

.step-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.step-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.step-head {
    display: grid;
    grid-template-columns: 64px 1fr;
    align-items: start;
    gap: 14px;
    margin-bottom: 18px;
}

.step-head-icon-frame {
    width: 64px;
    height: 78px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-head-icon {
    font-size: 46px;
    line-height: 1;
    color: #ffffff;
}

.step-head-text {
    min-width: 0;
}

.step-head-text h3 {
    margin: 0;
    font-size: clamp(1.34rem, 1.78vw, 1.62rem);
    font-weight: 900;
    letter-spacing: -0.01em;
    line-height: 1.15;
    color: #ffffff;
}

.step-summary {
    margin: 10px 0 0;
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.4;
}

.step-ai {
    --step-accent: #00a3be;
    --step-bg: #e9fcff;
}

.step-native {
    --step-accent: #7f57c9;
    --step-bg: #f3edff;
}

.step-review {
    --step-accent: #24b660;
    --step-bg: #ecfff3;
}

.step-features {
    text-align: left;
    margin-top: auto;
    padding-top: 8px;
}

.step-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    color: rgba(255, 255, 255, 0.96);
    font-size: 1rem;
    font-weight: 700;
}

.step-features li i {
    color: #ffffff;
}

/* ===== Stats Section ===== */
.section-stats {
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    padding: var(--spacing-4xl) 0;
}

.stats-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.stats-image img {
    max-width: 350px;
    margin: 0 auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.stats-text h2 {
    color: var(--text-white);
    margin-bottom: var(--spacing-2xl);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
}

.stat-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.stat-number span {
    font-size: 1.5rem;
}

.stat-label {
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-sm);
    font-size: 0.95rem;
}

/* ===== New Stats Section (Figma Design) ===== */
.section-stats-new {
    background: rgb(239, 239, 239);
    padding: var(--spacing-4xl) 0;
}

.stats-content-new {
    position: relative;
    overflow: visible;
}

.stats-info {
    --stats-character-width: clamp(330px, 35vw, 460px);
    --stats-character-gap: clamp(8px, 1.1vw, 14px);
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
    align-items: start;
    padding: var(--spacing-lg) 0;
    position: relative;
    z-index: 3;
    transform: translateX(-80px);
}

.stats-copy {
    position: relative;
    z-index: 2;
    margin-top: -120px;
    margin-bottom: 0;
}

.stats-badge {
    display: inline-block;
    margin-bottom: 10px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #1e88e5;
    background: rgba(30, 136, 229, 0.12);
}

.stats-info h2 {
    margin: 0;
    line-height: 1.12;
}

.stats-title-row {
    display: flex;
    align-items: center;
    gap: var(--stats-character-gap);
    margin: 0;
    width: 100%;
    max-width: none;
}

.stats-title-copy {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-left: -80px;
}

.stats-title-row h2 {
    margin: 0;
    line-height: 1.12;
    white-space: nowrap;
    word-break: keep-all;
}

.stats-header-character {
    display: inline-block;
    flex-shrink: 0;
    width: var(--stats-character-width);
    height: auto;
    pointer-events: none;
    transform: translateY(100px);
}

.stats-header-dark {
    display: inline-block;
    font-size: clamp(1.95rem, 4.2vw, 3.55rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    color: #3b4556;
}

.stats-header-accent {
    display: inline-block;
    margin-top: 2px;
    font-size: clamp(2.2rem, 5.1vw, 4.3rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    color: #1e9bff;
}

.stats-cards {
    display: grid;
    grid-template-columns: repeat(4, minmax(170px, 1fr));
    gap: 12px;
    width: calc(100% - (var(--stats-character-width) + var(--stats-character-gap) - 80px));
    max-width: none;
    margin-left: calc(var(--stats-character-width) + var(--stats-character-gap) - 80px);
    justify-self: start;
    align-self: start;
    position: relative;
    z-index: 1;
    margin-top: -100px;
}

.stat-card {
    width: 100%;
    min-height: 172px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 18px;
    padding: 12px 13px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    transform: none;
    box-shadow: none;
}

.stat-card:hover {
    border-color: transparent;
    box-shadow: none;
    transform: translateY(-2px);
}

.stat-main {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 6px;
}

.stat-num {
    font-size: clamp(2rem, 2.7vw, 2.8rem);
    font-weight: 800;
    color: #ff3b30;
    line-height: 0.98;
}

.stat-title {
    font-size: clamp(0.95rem, 1.06vw, 1.02rem);
    font-weight: 700;
    color: #111111;
    line-height: 1.15;
}

.stat-desc {
    display: block;
    margin: 0;
    font-size: clamp(0.82rem, 0.92vw, 0.92rem);
    line-height: 1.25;
    color: #111111;
}

@media (max-width: 768px) {
    .stats-info {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        transform: none;
    }

    .stats-title-row {
        margin-bottom: var(--spacing-lg);
        align-items: center;
        gap: 12px;
    }

    .stats-title-row h2 {
        white-space: normal;
    }

    .stats-cards {
        width: 100%;
        margin-left: 0;
        justify-self: stretch;
        grid-template-columns: 1fr;
    }

    .stats-title-copy {
        margin-left: 0;
    }

    .stats-header-character {
        width: clamp(176px, 48vw, 244px);
        transform: translateY(44px);
    }

    .stat-num {
        font-size: 2rem;
    }

    .stat-card {
        min-height: 162px;
    }

    .stats-copy {
        margin-top: -50px;
        margin-bottom: 0;
    }
}

.stats-learning-marquee {
    margin-top: clamp(20px, 3vw, 34px);
    position: relative;
    z-index: 2;
}

.stats-learning-marquee-viewport {
    overflow: hidden;
    width: 100%;
}

.stats-learning-marquee-track {
    display: flex;
    width: max-content;
    animation: statsLearningScroll 52s linear infinite;
    will-change: transform;
}

.stats-learning-marquee:hover .stats-learning-marquee-track {
    animation-play-state: paused;
}

.stats-learning-marquee-group {
    display: flex;
    align-items: flex-start;
    gap: clamp(18px, 2vw, 34px);
    padding-right: clamp(18px, 2vw, 34px);
    min-width: max-content;
}

.stats-learning-card {
    width: clamp(208px, 16.8vw, 248px);
    height: clamp(387px, 30.6vw, 450px);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    flex-shrink: 0;
    cursor: pointer;
    background: #ffffff;
    border-radius: 26px;
    overflow: hidden;
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.1);
}

.stats-learning-cover {
    width: 100%;
    height: 52%;
    overflow: hidden;
    background: #ffffff;
    flex-shrink: 0;
}

.stats-learning-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
}

.stats-learning-cover-fallback {
    width: 100%;
    height: 100%;
    background: #e2e8f0;
    color: #64748b;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
}

.stats-learning-card-copy {
    min-height: 0;
    height: 48%;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px 18px 14px;
}

.stats-learning-card-copy h3 {
    margin: 0;
    color: #1e293b;
    font-size: clamp(1.08rem, 1.42vw, 1.3rem);
    font-weight: 800;
    line-height: 1.2;
    word-break: keep-all;
}

.stats-learning-card-copy p {
    margin: 0;
    color: #5d6b81;
    font-size: clamp(0.85rem, 0.98vw, 0.95rem);
    line-height: 1.38;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.stats-learning-card--long-title .stats-learning-card-copy p {
    -webkit-line-clamp: 2;
}

.stats-learning-level {
    font-size: clamp(0.9rem, 1.04vw, 1rem);
    line-height: 1;
    font-weight: 800;
    color: #1e9bff;
    min-height: 1em;
}

.stats-learning-card-footer {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
}

.stats-learning-loading {
    color: #64748b;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 4px 0;
}

@keyframes statsLearningScroll {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%);
    }
}

@media (max-width: 768px) {
    .stats-learning-marquee {
        margin-top: 18px;
    }

    .stats-learning-marquee-track {
        animation-duration: 36s;
    }

    .stats-learning-card {
        width: min(66vw, 224px);
        height: 378px;
        border-radius: 20px;
    }

    .stats-learning-cover {
        width: 100%;
        height: 50%;
    }

    .stats-learning-cover img {
        width: 100%;
        height: 100%;
    }

    .stats-learning-cover-fallback {
        height: 100%;
    }

    .stats-learning-card-copy {
        height: 50%;
        padding: 12px 12px 12px;
        gap: 8px;
    }

    .stats-learning-card-copy h3 {
        font-size: 1.04rem;
    }

    .stats-learning-card-copy p {
        font-size: 0.82rem;
        -webkit-line-clamp: 3;
    }

    .stats-learning-card--long-title .stats-learning-card-copy p {
        -webkit-line-clamp: 2;
    }

    .stats-learning-level {
        font-size: 0.8rem;
    }
}

.stats-preview-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px;
}

.stats-preview-overlay[hidden] {
    display: none;
}

.stats-preview-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 6, 23, 0.74);
}

.stats-preview-window {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(1280px, 97vw);
    height: min(88vh, 920px);
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 30px 70px rgba(2, 6, 23, 0.42);
}

.stats-preview-overlay.is-maximized {
    padding: 0;
}

.stats-preview-overlay.is-maximized .stats-preview-window {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
    left: 0;
    top: 0;
    transform: none;
}

.stats-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.stats-preview-header h3 {
    margin: 0;
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 10px;
}

.stats-preview-controls {
    display: flex;
    gap: 8px;
}

.stats-preview-controls button {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-size: 1.1rem;
    cursor: pointer;
}

.stats-preview-body {
    display: flex;
    min-height: 0;
    flex: 1;
    background: #f8fafc;
}

.stats-preview-sidebar {
    width: 370px;
    min-width: 68px;
    border-right: 1px solid #dbe3f0;
    background: #f8fafc;
    display: flex;
    flex-direction: column;
    transition: width 0.25s ease;
}

.stats-preview-overlay.is-sidebar-collapsed .stats-preview-sidebar {
    width: 68px;
}

.stats-preview-sidebar-head {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 12px;
    border-bottom: 1px solid #e1e8f4;
    background: #ffffff;
}

.stats-preview-sidebar-cover {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #dbe3f0;
    background: #ffffff;
    flex-shrink: 0;
}

.stats-preview-sidebar-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.stats-preview-sidebar-toggle {
    width: 38px;
    height: 38px;
    border: none;
    border-radius: 10px;
    background: #e2e8f0;
    color: #4f46e5;
    font-size: 1rem;
    cursor: pointer;
    flex-shrink: 0;
}

.stats-preview-sidebar-copy {
    min-width: 0;
    transition: opacity 0.2s ease;
}

.stats-preview-overlay.is-sidebar-collapsed .stats-preview-sidebar-copy {
    opacity: 0;
    pointer-events: none;
    width: 0;
    overflow: hidden;
}

.stats-preview-overlay.is-sidebar-collapsed .stats-preview-sidebar-cover {
    display: none;
}

.stats-preview-sidebar-copy h4 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 800;
    color: #0f172a;
    line-height: 1.15;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.stats-preview-sidebar-copy p {
    margin: 8px 0 0;
    font-size: 1rem;
    color: #64748b;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.stats-preview-item-list {
    padding: 10px 8px;
    overflow-y: auto;
    flex: 1;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.stats-preview-item-list::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
}

.stats-preview-item-btn {
    width: 100%;
    display: flex;
    align-items: stretch;
    border: 1px solid #d5deea;
    border-radius: 12px;
    margin-bottom: 8px;
    background: #ffffff;
    cursor: pointer;
    overflow: hidden;
    color: #334155;
}

.stats-preview-item-btn.is-active {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: #ffffff;
    border-color: transparent;
}

.stats-preview-item-number {
    width: 54px;
    background: #eef2ff;
    color: #6366f1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.32rem;
    font-weight: 800;
    flex-shrink: 0;
}

.stats-preview-item-btn.is-active .stats-preview-item-number {
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
}

.stats-preview-item-copy {
    padding: 12px 14px;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 7px;
}

.stats-preview-item-name {
    font-size: 0.96rem;
    font-weight: 700;
    line-height: 1.3;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
}

.stats-preview-item-level {
    font-size: 0.9rem;
    opacity: 0.8;
}

.stats-preview-main {
    flex: 1;
    min-width: 0;
    overflow-y: auto;
    padding: 20px;
    background: #ffffff;
    position: relative;
}

.stats-preview-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
}

.stats-preview-badge {
    background: #dbeafe;
    color: #1d4ed8;
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 0.9rem;
    font-weight: 800;
}

.stats-preview-badge-level {
    background: #fef3c7;
    color: #b45309;
}

.stats-preview-item-title {
    font-size: 1.2rem;
    font-weight: 900;
    color: #0f172a;
}

.stats-preview-lesson {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 14px;
}

.stats-preview-section {
    margin-bottom: 20px;
}

.stats-preview-section:last-child {
    margin-bottom: 0;
}

.stats-preview-section-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 16px;
    border-radius: 8px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: #ffffff;
    font-size: 0.94rem;
    font-weight: 800;
    margin-bottom: 14px;
}

.stats-preview-section-label-red {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.stats-preview-line {
    border-left: 4px solid #3b82f6;
    padding: 0 0 0 12px;
    margin-bottom: 14px;
}

.stats-preview-line-purple {
    border-left-color: #8b5cf6;
}

.stats-preview-line-main {
    font-size: 1.12rem;
    font-weight: 800;
    color: #0f172a;
    line-height: 1.35;
    margin-bottom: 4px;
}

.stats-preview-line-pron {
    font-size: 0.9rem;
    color: #64748b;
    font-style: italic;
    margin-bottom: 4px;
}

.stats-preview-line-trans {
    display: inline-block;
    margin-top: 2px;
    font-size: 0.98rem;
    line-height: 1.45;
    color: #334155;
    background: #e2e8f0;
    border-radius: 8px;
    padding: 8px 10px;
}

.stats-preview-word-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 10px;
}

.stats-preview-word-list li {
    background: #ffffff;
    border: 1px solid #dbe3f0;
    border-radius: 10px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.stats-preview-word-main {
    font-size: 0.92rem;
    font-weight: 700;
    color: #0f172a;
}

.stats-preview-word-trans {
    font-size: 0.84rem;
    color: #475569;
}

.stats-preview-grammar {
    margin: 0;
    font-size: 0.94rem;
    line-height: 1.6;
    color: #1e293b;
    background: #ffffff;
    border: 1px solid #dbe3f0;
    border-radius: 10px;
    padding: 12px;
}

.stats-preview-empty {
    text-align: center;
    color: #64748b;
    font-size: 1rem;
    padding: 38px 14px;
}

.stats-preview-login-lock {
    position: absolute;
    left: 0;
    right: 0;
    top: 44%;
    bottom: 0;
    background: linear-gradient(
        180deg,
        rgba(248, 250, 252, 0) 0%,
        rgba(248, 250, 252, 0.78) 38%,
        rgba(248, 250, 252, 0.96) 66%,
        rgba(248, 250, 252, 1) 100%
    );
    display: none;
    align-items: flex-end;
    justify-content: center;
    padding: 20px;
    z-index: 3;
}

.stats-preview-login-lock-panel {
    text-align: center;
    max-width: 440px;
    width: 100%;
}

.stats-preview-login-lock-panel p {
    margin: 0 0 12px;
    color: #1e293b;
    font-size: 1rem;
    font-weight: 700;
}

.stats-preview-login-lock-panel button {
    border: none;
    background: linear-gradient(135deg, #4f46e5, #6366f1);
    color: #ffffff;
    border-radius: 999px;
    padding: 10px 22px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
}

.stats-preview-overlay.is-guest-locked .stats-preview-main {
    overflow: hidden;
}

.stats-preview-overlay.is-guest-locked .stats-preview-login-lock {
    display: flex;
}

.stats-preview-resize-handle {
    position: absolute;
    right: 8px;
    bottom: 8px;
    width: 22px;
    height: 22px;
    border: none;
    background: transparent;
    color: #6366f1;
    cursor: nwse-resize;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 4;
}

.stats-preview-resize-handle i {
    font-size: 12px;
    transform: rotate(90deg);
    pointer-events: none;
}

.stats-preview-overlay.is-maximized .stats-preview-resize-handle {
    display: none;
}

@media (max-width: 1024px) {
    .stats-preview-window {
        width: 98vw;
        height: 92vh;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }

    .stats-preview-sidebar {
        width: 310px;
    }

    .stats-preview-sidebar-copy h4 {
        font-size: 1.28rem;
    }

    .stats-preview-item-title {
        font-size: 1.24rem;
    }

    .stats-preview-line-main {
        font-size: 1.04rem;
    }
}

@media (max-width: 768px) {
    .stats-preview-overlay {
        padding: 0;
    }

    .stats-preview-window {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
        left: 0;
        top: 0;
        transform: none;
    }

    .stats-preview-header {
        padding: 10px 12px;
    }

    .stats-preview-header h3 {
        font-size: 1.2rem;
    }

    .stats-preview-body {
        flex-direction: column;
    }

    .stats-preview-sidebar {
        width: 100%;
        min-width: 100%;
        max-height: 38vh;
        border-right: none;
        border-bottom: 1px solid #dbe3f0;
    }

    .stats-preview-overlay.is-sidebar-collapsed .stats-preview-sidebar {
        max-height: 62px;
    }

    .stats-preview-item-title {
        font-size: 1.02rem;
    }

    .stats-preview-main {
        padding: 14px 12px;
    }

    .stats-preview-line-main {
        font-size: 0.98rem;
    }

    .stats-preview-line-trans {
        font-size: 0.9rem;
    }

    .stats-preview-login-lock {
        top: 38%;
        padding: 14px;
    }

    .stats-preview-login-lock-panel p {
        font-size: 0.92rem;
    }
}

/* ===== Features Section ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.feature-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    border: 1px solid #E5E7EB;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
}

.feature-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-lg);
    background: rgba(229, 9, 20, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--primary-color);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Lesson Types */
.lesson-types {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.lesson-type {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid #E5E7EB;
    transition: all var(--transition-normal);
}

.lesson-type:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.lesson-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.lesson-icon.phone-lesson {
    background: linear-gradient(135deg, #10B981, #34D399);
    color: white;
}

.lesson-icon.video-lesson {
    background: linear-gradient(135deg, #3B82F6, #60A5FA);
    color: white;
}

.lesson-info h4 {
    margin-bottom: var(--spacing-xs);
}

.lesson-info p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* ===== New Features Section (Figma Design) ===== */
.section-subtitle {
    font-size: 1rem;
    color: var(--text-gray);
    margin-top: var(--spacing-sm);
}

.features-grid-new {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.feature-card-new {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid #E5E7EB;
    transition: all var(--transition-normal);
}

.feature-card-new:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.feature-card-new.featured {
    border-color: rgba(229, 9, 20, 0.3);
    background: rgba(229, 9, 20, 0.02);
}

.feature-icon-new {
    width: 50px;
    height: 50px;
    margin-bottom: var(--spacing-md);
    background: rgba(229, 9, 20, 0.08);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary-color);
}

.feature-card-new h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.feature-card-new p {
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* New Lesson Types */
.lesson-types-new {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.lesson-card {
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.lesson-card.phone-card {
    background: rgba(229, 9, 20, 0.04);
    border: 1px solid rgba(229, 9, 20, 0.1);
}

.lesson-card.video-card {
    background: var(--bg-gray);
    border: 1px solid #E5E7EB;
}

.lesson-card h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.lesson-card h4 i {
    color: var(--primary-color);
}

.lesson-desc {
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.lesson-features {
    list-style: none;
}

.lesson-features li {
    color: var(--text-gray);
    font-size: 0.85rem;
    padding: var(--spacing-xs) 0;
}

.lesson-note {
    text-align: center;
    color: var(--text-gray);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.lesson-note i {
    color: var(--text-light);
}

/* ===== Promo Tabs Section ===== */
.promo-tabs {
    background: transparent;
    border: 0;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    margin-top: 150px;
}

.promo-tab-controls {
    display: none;
    gap: 8px;
    overflow-x: visible;
    position: relative;
    margin-bottom: 66px;
    padding-bottom: 2px;
}

.promo-tab-controls::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: #bfc4cc;
    z-index: 0;
    pointer-events: none;
}

.promo-tab-btn {
    position: relative;
    flex: 1 1 0;
    border: 0;
    background: transparent;
    color: #9ea3ad;
    border-radius: 0;
    padding: 10px 6px 14px;
    font-size: 0.84rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
}

.promo-tab-btn.active {
    background: transparent;
    border-color: transparent;
    color: #5f68ff;
    box-shadow: none;
}

.promo-tab-btn.active::after {
    content: '';
    position: absolute;
    left: 10%;
    right: 10%;
    bottom: 0;
    height: 3px;
    border-radius: 999px;
    background: #5f68ff;
    z-index: 1;
}

.promo-tab-viewport {
    overflow: visible;
    border-radius: 0;
    background: transparent;
    border: 0;
}

.promo-tab-track {
    display: block;
    transition: none;
    will-change: auto;
}

.promo-tab-panel {
    min-width: auto;
    padding: 0;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.promo-tab-panel+.promo-tab-panel {
    margin-top: 18px;
}

.promo-tab-panel.promo-tab-panel--app-alert {
    background: transparent;
    border: 0;
    box-shadow: none;
    padding: 0;
}

.promo-tab-panel.promo-tab-panel--smart-alert {
    margin-top: 100px;
}

.promo-tab-panel--app-alert .promo-panel-layout {
    width: 100%;
    max-width: none;
    margin: 0;
}

.promo-panel-layout--smart-alert {
    display: flex;
    align-items: flex-start;
    gap: 30px;
    max-width: none;
}

.promo-panel-media--smart-alert {
    flex: 0 0 360px;
}

.promo-panel-media--smart-alert img {
    width: 360px;
    height: 360px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    border: 2px solid #d2d9e6;
    box-shadow: 0 14px 30px rgba(23, 41, 73, 0.2);
}

.promo-tab-panel--smart-alert .promo-panel-content {
    flex: 1;
    min-width: 0;
}

.promo-tab-panel--smart-alert .promo-headline-group,
.promo-tab-panel--smart-alert .promo-body {
    max-width: none;
    margin-left: 0;
    margin-right: 0;
}

.promo-tab-panel--smart-alert .promo-headline {
    font-size: clamp(2.3rem, 3.9vw, 3.25rem);
    color: #3b4556;
    font-weight: 900;
    letter-spacing: -0.02em;
    white-space: nowrap;
    display: inline-flex;
    align-items: flex-end;
    gap: 0.06em;
}

.promo-tab-panel--smart-alert .promo-subheadline {
    font-size: clamp(1.48rem, 2.45vw, 2.06rem);
    line-height: 1.24;
    font-weight: 800;
    color: #3b4556;
}

.promo-tab-panel--smart-alert .promo-body {
    font-size: 1.12rem;
    line-height: 1.78;
}

.promo-tab-panel--smart-alert .promo-body > p:first-child {
    font-size: 1.24rem;
    font-weight: 700;
    margin-top: 50px;
}

.promo-tab-panel--app-alert .promo-headline-group,
.promo-tab-panel--app-alert .promo-body {
    max-width: 1020px;
}

.promo-tab-panel--app-showcase .promo-panel-layout {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    gap: 18px;
}

.promo-tab-panel--app-showcase {
    overflow: visible;
}

.promo-tab-panel--app-showcase .promo-panel-content {
    flex: 0 1 clamp(420px, 40vw, 640px);
    max-width: 640px;
    min-width: 320px;
    margin-left: auto;
    text-align: right;
    transform: translateX(24px);
}

.promo-tab-panel--app-showcase .promo-panel-title,
.promo-tab-panel--app-showcase .promo-headline-group,
.promo-tab-panel--app-showcase .promo-body {
    text-align: right;
    margin-left: auto;
    margin-right: 0;
}

.promo-tab-panel--app-showcase .promo-body ul {
    margin-right: 0;
    margin-left: auto;
}

.promo-tab-panel--app-showcase .promo-body li {
    text-align: right;
    padding-left: 0;
    padding-right: 1.1rem;
}

.promo-tab-panel--app-showcase .promo-body li::before {
    left: auto;
    right: 0;
}

.promo-tab-panel--app-showcase .promo-headline {
    font-size: clamp(2.3rem, 3.9vw, 3.25rem);
    color: #3b4556;
    font-weight: 900;
    letter-spacing: -0.02em;
    white-space: nowrap;
    display: inline-flex;
    align-items: flex-end;
    gap: 0.06em;
}

.promo-tab-panel--app-showcase .promo-subheadline {
    font-size: clamp(1.48rem, 2.45vw, 2.06rem);
    line-height: 1.24;
    font-weight: 800;
    color: #3b4556;
}

.promo-tab-panel--app-showcase .promo-body {
    font-size: 1.12rem;
    line-height: 1.78;
}

.promo-tab-panel--app-showcase .promo-body>p:first-child {
    font-size: 1.24rem;
    font-weight: 700;
    margin-top: 50px;
}

.promo-tab-panel--app-showcase .promo-panel-media {
    flex: 0 1 clamp(420px, 62vw, 880px);
    max-width: 880px;
    display: flex;
    justify-content: flex-end;
    perspective: 1200px;
}

.promo-appshot-list {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    width: min(100%, 860px);
    margin-left: auto;
    overflow: visible;
    transform-style: flat;
    isolation: isolate;
}

.promo-appshot-list::after {
    content: "";
    position: absolute;
    left: 10%;
    right: 4%;
    bottom: -14px;
    height: 24px;
    border-radius: 999px;
    background: radial-gradient(ellipse at center, rgba(20, 32, 58, 0.24) 0%, rgba(20, 32, 58, 0) 70%);
    pointer-events: none;
    z-index: 0;
}

.promo-appshot-list img {
    display: block;
    background: #fff;
    border: 1px solid #cfd8e7;
    border-radius: 12px;
    box-shadow: 0 12px 28px rgba(26, 38, 64, 0.18);
}

.promo-appshot-pc {
    width: 100%;
    max-width: 840px;
    flex: 0 1 auto;
    position: relative;
    z-index: 1;
    align-self: flex-end;
    transform-origin: left center;
    transform: perspective(1400px) translateX(180px) rotateY(14deg);
    box-shadow: 22px 26px 42px rgba(19, 36, 68, 0.34);
}

.promo-appshot-app {
    width: 27%;
    max-width: 180px;
    min-width: 96px;
    flex: 0 0 auto;
    margin-left: -12%;
    margin-bottom: 0;
    position: relative;
    z-index: 3;
    align-self: flex-end;
    transform: none;
    box-shadow: 0 22px 40px rgba(10, 28, 56, 0.36);
    backface-visibility: hidden;
}

.promo-benefit-split {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    position: relative;
    border: 1px solid #b5bfce;
    border-radius: 0;
    overflow: hidden;
}

.promo-benefit-split::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 1px;
    transform: translateX(-50%);
    background: #b5bfce;
    pointer-events: none;
}

.promo-benefit-column {
    background: transparent;
    border: 0;
    border-radius: 0;
    padding: 16px 20px;
    display: grid;
    grid-template-rows: auto minmax(3.5em, auto) 1fr;
}

.promo-benefit-title {
    margin: 0 0 8px;
    font-size: 1.02rem;
    font-weight: 900;
    line-height: 1.35;
    color: #1f2f4d;
}

.promo-benefit-column p {
    margin: 0 0 9px;
}

.promo-benefit-column ul {
    margin: 0;
}

.promo-benefit-column li {
    margin-bottom: 7px;
}

.promo-body .promo-benefit-summary {
    margin: 24px 0 0;
    font-weight: 800;
    color: #4a5a75;
}

.promo-tab-panel.promo-tab-panel--speaking {
    margin-top: 120px;
    margin-bottom: 120px;
}

.promo-tab-panel.promo-tab-panel--beginner,
.promo-tab-panel.promo-tab-panel--comment,
.promo-tab-panel.promo-tab-panel--review-game {
    margin-top: 120px;
}

.promo-tab-panel--speaking .promo-panel-layout {
    display: flex;
    align-items: flex-start;
    gap: 30px;
    width: 100%;
}

.promo-tab-panel--speaking .promo-panel-content {
    flex: 1;
    min-width: 0;
}

.promo-tab-panel--speaking .promo-panel-media {
    flex: 0 0 clamp(360px, 34vw, 480px);
    display: flex;
    justify-content: flex-end;
}

.promo-speaking-panorama {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    width: min(100%, 460px);
    perspective: 1400px;
    transform-style: flat;
    isolation: isolate;
    transform: translateY(-60px);
}

.promo-speaking-shot {
    position: relative;
    width: clamp(140px, 11vw, 190px);
    border-radius: 22px;
    object-fit: cover;
    display: block;
    border: 1px solid #d3dbe8;
    background: #fff;
    box-shadow: 0 12px 24px rgba(25, 41, 73, 0.18), 0 2px 6px rgba(25, 41, 73, 0.1);
}

.promo-speaking-shot--left {
    margin-right: -44px;
    transform-origin: right center;
    transform: translateY(18px) rotateY(-24deg) rotateZ(-2deg);
    z-index: 1;
    box-shadow: 0 10px 20px rgba(25, 41, 73, 0.16);
}

.promo-speaking-shot--center {
    width: clamp(154px, 12.2vw, 210px);
    transform: translateY(18px) rotateY(0deg);
    z-index: 5;
    box-shadow: 0 18px 34px rgba(25, 41, 73, 0.24), 0 4px 10px rgba(25, 41, 73, 0.12);
}

.promo-speaking-shot--right {
    margin-left: -44px;
    transform-origin: left center;
    transform: translateY(18px) rotateY(24deg) rotateZ(2deg);
    z-index: 2;
    box-shadow: 0 10px 20px rgba(25, 41, 73, 0.16);
}

.promo-tab-panel--speaking .promo-headline-group,
.promo-tab-panel--speaking .promo-body {
    max-width: none;
    text-align: right;
    margin-left: auto;
    margin-right: 0;
}

.promo-tab-panel--speaking .promo-headline {
    display: inline-flex;
    align-items: flex-end;
    font-size: clamp(2.3rem, 3.9vw, 3.25rem);
    color: #3b4556;
    font-weight: 900;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.promo-tab-panel--speaking .promo-subheadline {
    font-size: clamp(1.48rem, 2.45vw, 2.06rem);
    line-height: 1.24;
    font-weight: 800;
    color: #3b4556;
}

.promo-tab-panel--speaking .promo-body {
    font-size: 1.12rem;
    line-height: 1.78;
}

.promo-tab-panel--speaking .promo-body > p:first-child {
    font-size: 1.24rem;
    font-weight: 700;
    margin-top: 50px;
}

.promo-tab-panel--speaking .promo-body ul {
    margin-right: 0;
    margin-left: auto;
}

.promo-tab-panel--speaking .promo-body li {
    text-align: right;
    padding-left: 0;
    padding-right: 1.1rem;
}

.promo-tab-panel--speaking .promo-body li::before {
    left: auto;
    right: 0;
}

.promo-tab-panel--room .promo-panel-layout {
    display: flex;
    align-items: flex-start;
    gap: 26px;
    width: 100%;
    max-width: none;
    margin: 0;
}

.promo-tab-panel--room .promo-panel-title,
.promo-tab-panel--beginner .promo-panel-title,
.promo-tab-panel--comment .promo-panel-title,
.promo-tab-panel--review-game .promo-panel-title {
    display: inline-flex;
    align-items: flex-end;
    margin: 0 0 18px;
    font-size: clamp(2.3rem, 3.9vw, 3.25rem);
    line-height: 1.1;
    font-weight: 900;
    letter-spacing: -0.02em;
    color: #3b4556;
}

.promo-tab-panel--room .promo-panel-title {
    display: flex;
    justify-content: flex-start;
    width: calc(100% - 346px);
    margin-left: auto;
    margin-right: 0;
    text-align: left;
}

.promo-tab-panel--room .promo-headline-group,
.promo-tab-panel--room .promo-body {
    margin-left: 0;
    margin-right: auto;
}

.promo-tab-panel--beginner .promo-panel-title,
.promo-tab-panel--comment .promo-panel-title {
    display: flex;
    justify-content: flex-end;
    width: calc(100% - 326px);
    margin-left: 0;
    margin-right: auto;
    text-align: right;
}

.promo-tab-panel--comment .promo-panel-title {
    width: calc(100% - 306px);
    margin-left: auto;
    margin-right: 0;
    justify-content: flex-start;
    text-align: left;
}

.promo-tab-panel--room .promo-headline,
.promo-tab-panel--beginner .promo-headline,
.promo-tab-panel--comment .promo-headline,
.promo-tab-panel--review-game .promo-headline {
    font-size: clamp(2.3rem, 3.9vw, 3.25rem);
    line-height: 1.12;
    font-weight: 900;
    letter-spacing: -0.02em;
    color: #3b4556;
}

.promo-tab-panel--room .promo-headline {
    font-size: clamp(1.34rem, 2.2vw, 1.88rem);
    line-height: 1.24;
    font-weight: 800;
}

.promo-tab-panel--review-game .promo-headline {
    font-size: clamp(1.22rem, 2vw, 1.72rem);
    line-height: 1.24;
    font-weight: 800;
}

.promo-tab-panel--room .promo-subheadline,
.promo-tab-panel--beginner .promo-subheadline,
.promo-tab-panel--comment .promo-subheadline,
.promo-tab-panel--review-game .promo-subheadline {
    font-size: clamp(1.48rem, 2.45vw, 2.06rem);
    line-height: 1.24;
    font-weight: 800;
    color: #3b4556;
}

.promo-tab-panel--room .promo-subheadline {
    font-size: clamp(1.34rem, 2.2vw, 1.88rem);
}

.promo-tab-panel--room .promo-body,
.promo-tab-panel--beginner .promo-body,
.promo-tab-panel--comment .promo-body,
.promo-tab-panel--review-game .promo-body {
    font-size: 1.12rem;
    line-height: 1.78;
}

.promo-tab-panel--room .promo-body > p:first-child,
.promo-tab-panel--beginner .promo-body > p:first-child,
.promo-tab-panel--comment .promo-body > p:first-child,
.promo-tab-panel--review-game .promo-body > p:first-child {
    font-size: 1.24rem;
    font-weight: 700;
    margin-top: 50px;
}

.promo-tab-panel--room .promo-panel-media {
    flex: 0 0 320px;
}

.promo-tab-panel--room .promo-panel-media img {
    width: 320px;
    height: 320px;
    border-radius: 9999px;
    object-fit: cover;
    display: block;
}

.promo-tab-panel--room .promo-panel-content {
    flex: 1;
    min-width: 0;
}

.promo-tab-panel--room .promo-headline-group,
.promo-tab-panel--room .promo-body {
    max-width: none;
    margin-left: 0;
    margin-right: 0;
}

.promo-tab-panel--beginner .promo-panel-layout {
    display: flex;
    align-items: flex-start;
    gap: 26px;
    width: 100%;
    max-width: none;
    margin: 0;
}

.promo-tab-panel--beginner .promo-panel-content {
    flex: 1;
    min-width: 0;
}

.promo-tab-panel--beginner .promo-panel-media {
    flex: 0 0 300px;
    display: flex;
    justify-content: flex-end;
}

.promo-tab-panel--beginner .promo-panel-media img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
}

.promo-tab-panel--beginner .promo-headline-group,
.promo-tab-panel--beginner .promo-body {
    max-width: none;
    text-align: right;
    margin-left: auto;
    margin-right: 0;
}

.promo-tab-panel--beginner .promo-subheadline {
    font-size: clamp(1.22rem, 2vw, 1.72rem);
}

.promo-tab-panel--comment .promo-subheadline {
    font-size: clamp(1.22rem, 2vw, 1.72rem);
    white-space: nowrap;
}

.promo-tab-panel--beginner .promo-body ul {
    margin-right: 0;
    margin-left: auto;
}

.promo-tab-panel--beginner .promo-body li {
    text-align: right;
    padding-left: 0;
    padding-right: 1.1rem;
}

.promo-tab-panel--beginner .promo-body li::before {
    left: auto;
    right: 0;
}

.promo-tab-panel--comment .promo-panel-layout {
    display: flex;
    align-items: flex-start;
    gap: 26px;
    width: 100%;
    max-width: none;
    margin: 0;
}

.promo-tab-panel--comment .promo-panel-media {
    flex: 0 0 280px;
}

.promo-tab-panel--comment .promo-panel-media img {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
}

.promo-tab-panel--comment .promo-panel-content {
    flex: 1;
    min-width: 0;
}

.promo-tab-panel--comment .promo-headline-group,
.promo-tab-panel--comment .promo-body {
    max-width: none;
    text-align: left;
    margin-left: 0;
    margin-right: auto;
}

.promo-tab-panel--comment .promo-body ul {
    margin-right: auto;
    margin-left: 0;
}

.promo-tab-panel--comment .promo-body li {
    text-align: left;
    padding-left: 1.1rem;
    padding-right: 0;
}

.promo-tab-panel--comment .promo-body li::before {
    left: 0;
    right: auto;
}

.promo-tab-panel--review-game .promo-panel-layout {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    width: 100%;
    max-width: none;
    margin: 0;
}

.promo-tab-panel--review-game .promo-panel-title {
    width: calc(100% - clamp(352px, calc(30vw + 32px), 442px));
    margin-left: 0;
    margin-right: auto;
    justify-content: flex-end;
    text-align: right;
}

.promo-tab-panel--review-game .promo-panel-content {
    flex: 1;
    min-width: 0;
}

.promo-tab-panel--review-game .promo-headline-group,
.promo-tab-panel--review-game .promo-body {
    max-width: none;
    text-align: right;
    margin-left: auto;
    margin-right: 0;
}

.promo-tab-panel--review-game .promo-body ul {
    margin-right: 0;
    margin-left: auto;
}

.promo-tab-panel--review-game .promo-body li {
    text-align: right;
    padding-left: 0;
    padding-right: 1.1rem;
}

.promo-tab-panel--review-game .promo-body li::before {
    left: auto;
    right: 0;
}

.promo-tab-panel--review-game .promo-panel-media {
    flex: 0 0 clamp(320px, 30vw, 410px);
    display: flex;
    justify-content: flex-end;
}

.promo-review-keywords {
    position: relative;
    width: min(100%, 410px);
    height: 340px;
    transform: translateY(-70px);
}

.promo-review-keyword {
    position: absolute;
    display: inline-block;
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.02em;
    white-space: nowrap;
    text-shadow: 3px 4px 0 rgba(72, 86, 110, 0.34), 0 0 1px rgba(31, 47, 77, 0.22);
}

.promo-review-keyword--review {
    top: 50%;
    left: 50%;
    right: auto;
    font-size: clamp(3.6rem, 5.4vw, 4.9rem);
    color: transparent;
    -webkit-text-stroke: 1px #101010;
    text-stroke: 1px #101010;
    background: transparent;
    padding: 0;
    border: 0;
    border-radius: 0;
    text-shadow: none;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.promo-review-keyword--game {
    top: 6%;
    right: 1%;
    left: auto;
    font-size: clamp(2.9rem, 4.5vw, 3.9rem);
    color: #5fbc4f;
    transform: none;
}

.promo-review-keyword--record {
    top: 2%;
    left: 4%;
    font-size: clamp(1.68rem, 2.6vw, 2.2rem);
    color: #4fc3f7;
    transform: rotate(-10deg);
}

.promo-review-keyword--avatar {
    top: 34%;
    right: 2%;
    font-size: clamp(2rem, 3vw, 2.6rem);
    color: #f06292;
    transform: rotate(4deg);
}

.promo-review-keyword--core {
    top: 44%;
    left: 0;
    font-size: clamp(2rem, 3vw, 2.55rem);
    color: #7e57c2;
    transform: rotate(-8deg);
}

.promo-review-keyword--fun {
    bottom: 12%;
    right: 22%;
    font-size: clamp(1.9rem, 2.8vw, 2.4rem);
    color: #ff8a65;
    transform: rotate(7deg);
}

.promo-review-keyword--focus {
    bottom: 0;
    left: 8%;
    font-size: clamp(2rem, 3vw, 2.6rem);
    color: #ffd54f;
    transform: rotate(-5deg);
}

.promo-review-keyword--pattern {
    top: 24%;
    left: 30%;
    font-size: clamp(1.4rem, 2.2vw, 1.95rem);
    color: #5ec0b4;
    transform: rotate(6deg);
}

.promo-review-keyword--speaking {
    top: 62%;
    right: 0;
    font-size: clamp(1.42rem, 2.2vw, 1.98rem);
    color: #8d6eff;
    transform: rotate(-6deg);
}

.promo-review-keyword--apply {
    bottom: 24%;
    left: 34%;
    font-size: clamp(1.38rem, 2.1vw, 1.88rem);
    color: #36b2a6;
    transform: rotate(5deg);
}

.promo-panel-title {
    margin: 0 0 10px;
    font-size: 0.98rem;
    color: #46608b;
    font-weight: 900;
    letter-spacing: -0.01em;
    max-width: none;
    margin-left: 0;
    margin-right: 0;
}

.promo-headline-group {
    margin-bottom: 16px;
    max-width: none;
    margin-left: 0;
    margin-right: 0;
}

.promo-headline {
    margin: 0;
    font-size: clamp(1.65rem, 2.5vw, 2.35rem);
    line-height: 1.18;
    letter-spacing: -0.02em;
    font-weight: 900;
    color: #1e2b42;
}

.promo-index-mark {
    display: inline-block;
    margin-right: 20px;
    font-size: 2.15em;
    line-height: 0.72;
    font-style: italic;
    font-weight: 900;
    color: rgb(101, 184, 89);
    letter-spacing: -0.04em;
    vertical-align: -0.2em;
}

.promo-subheadline {
    margin: 10px 0 0;
    font-size: clamp(1.04rem, 1.5vw, 1.28rem);
    font-weight: 800;
    line-height: 1.45;
    color: #1e88e5;
}

.promo-body {
    font-size: 0.97rem;
    line-height: 1.75;
    color: #4b5b75;
    max-width: none;
    margin-left: 0;
    margin-right: 0;
}

.promo-body p {
    margin: 0 0 11px;
}

.promo-body ul {
    margin: 0 0 12px;
    padding-left: 0;
    list-style: none;
}

.promo-body li {
    margin-bottom: 6px;
    padding-left: 1.1rem;
    position: relative;
}

.promo-body li::before {
    content: "·";
    position: absolute;
    left: 0;
    top: -1px;
    font-size: 1.4em;
    font-weight: 700;
    color: inherit;
}

@media (max-width: 768px) {
    .promo-tabs {
        padding: 0;
        border-radius: 0;
    }

    .promo-tab-controls {
        display: flex;
        overflow-x: visible;
        gap: 6px;
        margin-bottom: 12px;
        padding-bottom: 2px;
        position: relative;
    }

    .promo-tab-controls::-webkit-scrollbar {
        height: 6px;
    }

    .promo-tab-controls::-webkit-scrollbar-thumb {
        background: #c7d5ee;
        border-radius: 999px;
    }

    .promo-tab-btn {
        flex: 1 1 0;
        white-space: normal;
        font-size: 0.78rem;
        padding: 8px 4px 10px;
    }

    .promo-tab-panel {
        padding: 0;
    }

    .promo-tab-panel.promo-tab-panel--smart-alert {
        margin-top: 64px;
        padding: 0;
    }

    .promo-tab-panel--app-alert .promo-panel-layout {
        width: 100%;
        margin: 0;
    }

    .promo-panel-layout--smart-alert {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .promo-panel-media--smart-alert {
        flex: 0 0 auto;
    }

    .promo-panel-media--smart-alert img {
        width: 255px;
        height: 255px;
    }

    .promo-tab-panel--smart-alert .promo-headline {
        font-size: 2.1rem;
        color: #3b4556;
        white-space: normal;
    }

    .promo-tab-panel--smart-alert .promo-subheadline {
        font-size: 1.34rem;
        line-height: 1.24;
        color: #3b4556;
    }

    .promo-tab-panel--smart-alert .promo-body {
        font-size: 1.02rem;
        line-height: 1.7;
    }

    .promo-tab-panel--smart-alert .promo-body > p:first-child {
        font-size: 1.12rem;
        margin-top: 32px;
    }

    .promo-headline {
        font-size: 1.36rem;
    }

    .promo-subheadline {
        font-size: 0.98rem;
    }

    .promo-body {
        font-size: 0.91rem;
        line-height: 1.65;
    }

    .promo-benefit-split {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .promo-benefit-split::before {
        display: none;
    }

    .promo-benefit-column {
        padding: 14px;
    }

    .promo-tab-panel--room .promo-panel-layout {
        flex-direction: column;
        align-items: flex-start;
    }

    .promo-tab-panel--room .promo-panel-title,
    .promo-tab-panel--beginner .promo-panel-title,
    .promo-tab-panel--comment .promo-panel-title,
    .promo-tab-panel--review-game .promo-panel-title {
        font-size: 2.1rem;
        margin-bottom: 12px;
        width: 100%;
    }

    .promo-tab-panel--room .promo-headline,
    .promo-tab-panel--beginner .promo-headline,
    .promo-tab-panel--comment .promo-headline,
    .promo-tab-panel--review-game .promo-headline {
        font-size: 2.1rem;
        color: #3b4556;
    }

    .promo-tab-panel--room .promo-headline {
        font-size: 1.34rem;
        line-height: 1.24;
    }

    .promo-tab-panel--review-game .promo-headline {
        font-size: 1.2rem;
        line-height: 1.28;
    }

    .promo-tab-panel--room .promo-subheadline,
    .promo-tab-panel--beginner .promo-subheadline,
    .promo-tab-panel--comment .promo-subheadline,
    .promo-tab-panel--review-game .promo-subheadline {
        font-size: 1.34rem;
        line-height: 1.24;
        color: #3b4556;
    }

    .promo-tab-panel--room .promo-body,
    .promo-tab-panel--beginner .promo-body,
    .promo-tab-panel--comment .promo-body,
    .promo-tab-panel--review-game .promo-body {
        font-size: 1.02rem;
        line-height: 1.7;
    }

    .promo-tab-panel.promo-tab-panel--beginner,
    .promo-tab-panel.promo-tab-panel--comment,
    .promo-tab-panel.promo-tab-panel--review-game {
        margin-top: 72px;
    }

    .promo-tab-panel.promo-tab-panel--speaking {
        margin-top: 72px;
        margin-bottom: 72px;
    }

    .promo-tab-panel--speaking .promo-panel-layout {
        flex-direction: column-reverse;
        align-items: flex-end;
        gap: 14px;
    }

    .promo-tab-panel--speaking .promo-panel-content {
        width: 100%;
    }

    .promo-tab-panel--speaking .promo-panel-media {
        flex: 0 0 auto;
        width: min(100%, 360px);
    }

    .promo-tab-panel--speaking .promo-headline {
        font-size: 2.1rem;
        color: #3b4556;
        white-space: normal;
    }

    .promo-speaking-panorama {
        width: min(100%, 340px);
        justify-content: center;
        transform: translateY(-12px);
    }

    .promo-speaking-shot {
        width: clamp(106px, 30vw, 148px);
    }

    .promo-speaking-shot--center {
        width: clamp(118px, 34vw, 164px);
        transform: translateY(10px) rotateY(0deg);
        z-index: 5;
    }

    .promo-speaking-shot--left {
        margin-right: -28px;
        transform: translateY(10px) rotateY(-18deg) rotateZ(-1.5deg);
    }

    .promo-speaking-shot--right {
        margin-left: -28px;
        transform: translateY(10px) rotateY(18deg) rotateZ(1.5deg);
    }

    .promo-tab-panel--speaking .promo-subheadline {
        font-size: 1.34rem;
        line-height: 1.24;
        color: #3b4556;
    }

    .promo-tab-panel--speaking .promo-body {
        font-size: 1.02rem;
        line-height: 1.7;
    }

    .promo-tab-panel--app-showcase .promo-panel-layout {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .promo-tab-panel--app-showcase .promo-panel-content {
        flex: 1 1 auto;
        max-width: none;
        min-width: 0;
        width: 100%;
        text-align: left;
        margin-left: 0;
        transform: none;
    }

    .promo-tab-panel--app-showcase .promo-panel-title,
    .promo-tab-panel--app-showcase .promo-headline-group,
    .promo-tab-panel--app-showcase .promo-body {
        text-align: left;
        margin-left: 0;
        margin-right: 0;
    }

    .promo-tab-panel--app-showcase .promo-headline {
        font-size: 2.1rem;
        color: #3b4556;
        white-space: normal;
    }

    .promo-tab-panel--app-showcase .promo-subheadline {
        font-size: 1.34rem;
        line-height: 1.24;
        color: #3b4556;
    }

    .promo-tab-panel--app-showcase .promo-body {
        font-size: 1.02rem;
        line-height: 1.7;
    }

    .promo-tab-panel--app-showcase .promo-body>p:first-child {
        font-size: 1.12rem;
        margin-top: 32px;
    }

    .promo-tab-panel--app-showcase .promo-body ul {
        margin-left: 0;
        margin-right: 0;
    }

    .promo-tab-panel--app-showcase .promo-body li {
        text-align: left;
        padding-right: 0;
        padding-left: 1.1rem;
    }

    .promo-tab-panel--app-showcase .promo-body li::before {
        right: auto;
        left: 0;
    }

    .promo-tab-panel--app-showcase .promo-panel-media {
        flex: 0 0 auto;
        width: 100%;
        justify-content: center;
    }

    .promo-appshot-list {
        width: min(100%, 410px);
        margin: 0 auto;
    }

    .promo-appshot-pc {
        width: 100%;
        max-width: 410px;
        transform: none;
    }

    .promo-appshot-app {
        width: 34%;
        max-width: 144px;
        min-width: 80px;
        margin-left: -10%;
        margin-bottom: 0;
        transform: none;
    }

    .promo-tab-panel--room .promo-panel-media {
        flex: 0 0 auto;
    }

    .promo-tab-panel--room .promo-panel-media img {
        width: 240px;
        height: 240px;
    }

    .promo-tab-panel--beginner .promo-panel-layout {
        flex-direction: column;
        align-items: flex-end;
        gap: 14px;
    }

    .promo-tab-panel--beginner .promo-panel-media {
        flex: 0 0 auto;
        justify-content: flex-end;
        width: 100%;
    }

    .promo-tab-panel--beginner .promo-panel-media img {
        width: 240px;
        height: 240px;
    }

    .promo-tab-panel--comment .promo-panel-layout {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .promo-tab-panel--comment .promo-panel-media {
        flex: 0 0 auto;
    }

    .promo-tab-panel--comment .promo-panel-media img {
        width: 220px;
        height: 220px;
    }

    .promo-tab-panel--review-game .promo-panel-layout {
        flex-direction: column-reverse;
        align-items: flex-end;
        gap: 16px;
    }

    .promo-tab-panel--review-game .promo-panel-content {
        width: 100%;
    }

    .promo-tab-panel--review-game .promo-panel-media {
        flex: 0 0 auto;
        width: min(100%, 330px);
    }

    .promo-review-keywords {
        width: min(100%, 330px);
        height: 280px;
        transform: translateY(-40px);
    }

    .promo-review-keyword--review {
        font-size: clamp(2.7rem, 11vw, 3.3rem);
    }

    .promo-review-keyword--game {
        font-size: clamp(2.2rem, 8vw, 3rem);
        top: 4%;
        right: 3%;
        left: auto;
    }

    .promo-review-keyword--record,
    .promo-review-keyword--core,
    .promo-review-keyword--fun {
        font-size: 1.66rem;
    }

    .promo-review-keyword--avatar,
    .promo-review-keyword--focus {
        font-size: 1.72rem;
    }

    .promo-review-keyword--pattern,
    .promo-review-keyword--speaking,
    .promo-review-keyword--apply {
        font-size: 1.3rem;
    }
}

/* ===== Reviews Section ===== */
.reviews-grid {
    position: relative;
}

.reviews-slider-viewport {
    width: 100%;
    overflow: hidden;
}

.reviews-slider-track {
    display: flex;
    transition: transform 0.6s ease;
    will-change: transform;
}

.reviews-slider-page {
    min-width: 100%;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}

.reviews-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 18px;
}

.reviews-dot {
    width: 9px;
    height: 9px;
    border: 0;
    border-radius: 999px;
    background: #c4cddd;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.reviews-dot.active {
    background: #5f68ff;
    transform: scale(1.18);
    box-shadow: 0 0 0 3px rgba(95, 104, 255, 0.18);
}

.review-loading {
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #d7dbe3;
    color: #5b667a;
    font-weight: 700;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.45);
}

.review-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid #E5E7EB;
    transition: box-shadow var(--transition-normal);
    opacity: 1;
    transform: none;
}

.review-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.review-card--slide {
    min-height: 300px;
    border-radius: 22px;
    border: 1px solid #d8dee8;
    opacity: 1;
    transform: none;
    padding: 22px 22px 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.review-card--slide:hover {
    transform: translateY(-3px);
}

.review-text--slide {
    margin: 0;
    font-size: 1.02rem;
    line-height: 1.62;
    color: #303948;
    text-align: center;
    display: -webkit-box;
    -webkit-line-clamp: 7;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.review-meta {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.review-meta-name {
    font-size: 1rem;
    font-weight: 800;
    color: #2f3744;
}

.review-meta-summary {
    font-size: 0.9rem;
    color: #7a8393;
    font-weight: 600;
}

.review-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.review-user {
    flex: 1;
}

.review-user h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.review-user span {
    font-size: 0.85rem;
    color: var(--text-light);
}

.review-rating {
    color: #FFC107;
    font-size: 0.85rem;
}

.review-text {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ===== Pricing Section ===== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    align-items: stretch;
}

.pricing-card {
    background: var(--bg-white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    border: 2px solid #E5E7EB;
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    opacity: 0;
    transform: translateY(30px);
}

.pricing-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.pricing-card:hover {
    border-color: var(--primary-color);
}

.pricing-card.pricing-popular {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
    z-index: 1;
}

.pricing-card.pricing-popular.animate-in {
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-header {
    margin-bottom: var(--spacing-lg);
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.pricing-desc {
    color: var(--text-light);
    font-size: 0.9rem;
}

.pricing-price {
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.pricing-price .currency {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-gray);
}

.pricing-price .amount {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
}

.pricing-price .period {
    font-size: 1rem;
    color: var(--text-light);
}

.pricing-features {
    margin-bottom: var(--spacing-xl);
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    color: var(--text-gray);
}

.pricing-features li i {
    color: var(--color-review);
}

.pricing-card .btn {
    width: 100%;
    padding: var(--spacing-md);
}

.pricing-note {
    text-align: center;
    margin-top: var(--spacing-2xl);
    color: var(--text-light);
    font-size: 0.9rem;
}

.pricing-note-sub {
    margin-top: var(--spacing-xs);
}

/* ===== CTA Section ===== */
.section-cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: var(--spacing-4xl) 0;
    position: relative;
    z-index: 2;
}

.cta-content {
    text-align: center;
}

.cta-content h2 {
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
}

.cta-content h2 span {
    color: #FFD700;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ===== App Download Band ===== */
.app-download-band {
    background: #1d1d1d;
    padding: var(--spacing-3xl) 0;
    position: relative;
    z-index: 2;
}

.app-download-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: var(--spacing-2xl);
    align-items: start;
}

.app-preview-clip {
    width: min(100%, 430px);
    height: clamp(260px, calc(34vw + 10px), 400px);
    overflow: hidden;
    justify-self: start;
}

.app-preview-device {
    position: relative;
    width: 100%;
    aspect-ratio: 1500 / 2752;
}

.app-preview-screen {
    position: absolute;
    top: 1.5%;
    left: 5%;
    width: 90%;
    height: 97%;
    object-fit: cover;
    border-radius: 36px;
    z-index: 3;
}

.app-preview-frame {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    z-index: 2;
    pointer-events: none;
}

.app-download-copy {
    color: var(--text-white);
    align-self: start;
    transform: translateY(50px);
}

.app-download-eyebrow {
    color: rgba(255, 255, 255, 0.82);
    font-size: clamp(1.15rem, 1.9vw, 1.55rem);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.app-download-copy h3 {
    font-size: clamp(2.35rem, 4.8vw, 3.45rem);
    line-height: 1.15;
    color: #f8fbff;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.app-download-actions {
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.app-store-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.55rem 1rem;
    border-radius: var(--radius-full);
    color: #FFD700;
    border: 1px solid rgba(255, 215, 0, 0.5);
    background: rgba(255, 215, 0, 0.12);
    font-weight: 700;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.app-store-btn:hover {
    color: #111111;
    background: #FFD700;
    border-color: #FFD700;
}

.app-download-desc {
    color: rgba(255, 255, 255, 0.82);
    font-size: 1.15rem;
    line-height: 1.6;
    margin-bottom: 0.45rem;
}

.app-download-brand-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-download-brand-icon {
    width: 52px;
    height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.app-download-brand-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.app-download-brand-text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.app-download-brand {
    display: block;
    font-size: clamp(1.6rem, 2.6vw, 2.1rem);
    font-weight: 800;
    color: #FFD700;
    line-height: 1.3;
    margin-top: 0.1rem;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-darker);
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
    position: relative;
    z-index: 2;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-brand .logo img {
    height: 36px;
}

.footer-brand .logo span {
    color: var(--text-white);
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-brand>p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--text-white);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--text-white);
    margin-bottom: var(--spacing-lg);
    font-size: 1rem;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--spacing-sm);
}

.footer-contact i {
    width: 20px;
    color: var(--primary-color);
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.85rem;
}

/* ===== Mobile Menu ===== */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu {
    position: absolute;
    top: 0;
    right: 0;
    width: 280px;
    height: 100%;
    background: var(--bg-white);
    padding: var(--spacing-xl);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
}

.mobile-menu-overlay.active .mobile-menu {
    transform: translateX(0);
}

.mobile-menu-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-gray);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-3xl);
}

.mobile-nav-link {
    padding: var(--spacing-md);
    font-weight: 500;
    color: var(--text-dark);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
    background: var(--bg-gray);
    color: var(--primary-color);
}

.mobile-nav .btn {
    margin-top: var(--spacing-md);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-card.animate-in,
.feature-card.animate-in,
.pricing-card.animate-in,
.stat-item.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

.step-card:nth-of-type(2).animate-in,
.feature-card:nth-child(2).animate-in,
.pricing-card:nth-child(2).animate-in,
.stat-item:nth-child(2).animate-in {
    animation-delay: 0.1s;
}

.step-card:nth-of-type(3).animate-in,
.feature-card:nth-child(3).animate-in,
.pricing-card:nth-child(3).animate-in,
.stat-item:nth-child(3).animate-in {
    animation-delay: 0.2s;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-checklist {
        display: inline-block;
        text-align: left;
    }

    .hero-image {
        order: -1;
    }

    .phone-mockup {
        transform: rotateY(-10deg) rotateX(3deg) rotateZ(10deg);
    }

    .phone-mockup::before {
        width: 160px;
        height: 16px;
        bottom: -50px;
    }

    .phone-mockup img {
        max-width: 280px;
    }

    .steps-grid,
    .features-grid,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps-grid {
        grid-template-columns: repeat(2, minmax(0, 320px));
        gap: 22px;
        justify-content: center;
    }

    .step-card {
        border-radius: 10px;
    }

    .reviews-grid {
        width: 100%;
    }

    .reviews-slider-page {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
    }

    .review-card--slide {
        min-height: 270px;
        padding: 18px 16px;
    }

    .stats-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .app-download-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .app-preview-clip {
        justify-self: center;
    }

    .app-download-copy {
        text-align: center;
        transform: translateY(20px);
    }

    .app-download-actions {
        justify-content: flex-start;
    }

    .app-download-brand-row {
        justify-content: center;
        text-align: left;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .hero {
        position: relative;
        top: auto;
        min-height: 105vh;
    }

    .nav-links,
    .nav-buttons {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .section-header-system {
        text-align: center;
        padding-bottom: 16px;
        transform: none;
    }

    #reviews {
        margin-top: 0;
    }

    .section-header-system-visual {
        grid-template-columns: 1fr;
        row-gap: 12px;
    }

    .system-header-character-wrap {
        justify-content: center;
    }

    .system-header-character {
        max-width: min(240px, 58vw);
        --system-char-x: 0px;
        --system-char-y: 0px;
    }

    .section-header-system::after {
        left: 8%;
        right: 8%;
    }

    .section-header-system .system-header-subtitle {
        margin-top: 12px;
    }

    .feature-title-row {
        display: block;
        transform: none;
    }

    .section-header-feature {
        padding-left: 0;
        padding-top: 0;
    }

    .section-header-feature .system-header-kicker,
    .section-header-feature .feature-title-row h2,
    .section-header-feature .system-header-subtitle {
        transform: none;
    }

    .feature-header-character {
        position: static;
        display: block;
        width: clamp(95px, 30vw, 140px);
        margin: 8px auto 0;
    }

    .section-header-reviews {
        text-align: left;
        margin: 0 0 var(--spacing-xl);
    }

    .reviews-title-row {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .reviews-header-character {
        width: clamp(100px, 28vw, 150px);
        transform: none;
    }

    .section-header-pricing {
        text-align: left;
    }

    .pricing-title-row {
        align-items: flex-start;
        gap: 10px;
        flex-wrap: wrap;
    }

    .pricing-copy {
        transform: none;
    }

    .pricing-main-title {
        white-space: normal;
    }

    .pricing-header-character {
        width: clamp(95px, 26vw, 145px);
        transform: none;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .step-head {
        gap: 12px;
        margin-bottom: 14px;
        grid-template-columns: 48px 1fr;
    }

    .step-head-icon-frame {
        width: 48px;
        height: 56px;
    }

    .step-head-icon {
        font-size: 34px;
    }

    .step-head-text h3 {
        font-size: 1.16rem;
    }

    .step-summary {
        font-size: 0.98rem;
        margin-top: 6px;
    }

    .step-features li {
        font-size: 0.96rem;
    }

    .step-card {
        min-height: auto;
        border-radius: 8px;
        padding: 22px 18px 20px;
        max-width: none;
    }

    .steps-grid {
        gap: 16px;
    }

    .steps-grid,
    .features-grid,
    .reviews-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .reviews-slider-page {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .review-card--slide {
        min-height: 230px;
        border-radius: 16px;
        padding: 16px 14px 14px;
    }

    .review-text--slide {
        font-size: 0.95rem;
        -webkit-line-clamp: 6;
    }

    .pricing-card.pricing-popular {
        transform: none;
    }

    .app-download-band {
        padding: var(--spacing-2xl) 0;
    }

    .app-preview-clip {
        width: min(100%, 340px);
        height: clamp(230px, calc(64vw + 10px), 330px);
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .lesson-types {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .section {
        padding: var(--spacing-3xl) 0;
    }

    .hero-text h1 {
        font-size: 1.75rem;
    }

    .btn-cta,
    .btn-cta-white {
        width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
    }
}