/* YoTu Landing Page - Apple-Inspired Dark Theme */
/* iOS 26 Glass Effects */

:root {
    /* Colors - Apple Dark Theme */
    --primary: #0A84FF;
    --primary-dark: #0070E0;
    --primary-light: #409CFF;
    --primary-subtle: rgba(10, 132, 255, 0.12);
    --primary-glow: rgba(10, 132, 255, 0.25);

    /* Backgrounds */
    --bg-primary: #000000;
    --bg-secondary: #1C1C1E;
    --bg-tertiary: #0A0A0A;
    --bg-hero: linear-gradient(180deg, #000000 0%, #1C1C1E 100%);

    /* Glass effects - iOS 26 Ultra-Thin Material (Dark) */
    --glass-bg: rgba(28, 28, 30, 0.6);
    --glass-bg-heavy: rgba(28, 28, 30, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-dark: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    --glass-shadow-elevated: 0 8px 40px rgba(0, 0, 0, 0.5);
    --glass-blur: 16px;

    /* Text */
    --text-primary: #F5F5F7;
    --text-secondary: #A1A1A6;
    --text-tertiary: #6E6E73;
    --text-link: #409CFF;

    /* Accents */
    --accent-purple: #AF52DE;
    --accent-cyan: #32ADE6;
    --accent-green: #34C759;
    --accent-orange: #FF9500;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;

    /* Border Radius - Apple style */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Font - Apple SF Pro style */
    --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 17px;
    letter-spacing: -0.022em;
    overflow-x: hidden;
}

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

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

/* Container */
.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography - Apple style */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.1;
    font-weight: 600;
    letter-spacing: -0.025em;
}

.section-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    text-align: center;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    position: relative;
    z-index: 1;
}

.gradient-text {
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons - Apple style */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 980px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    letter-spacing: -0.01em;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: scale(1.02);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary-subtle);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Navigation - iOS Clear Glass Effect */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding-bottom: 50px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px) saturate(180%);
    -webkit-backdrop-filter: blur(8px) saturate(180%);
    border-bottom: none;
    /* Mask fades out the entire element including blur - smooth transition */
    -webkit-mask-image: linear-gradient(to bottom,
        black 0%,
        black 30%,
        rgba(0,0,0,0.8) 50%,
        rgba(0,0,0,0.5) 65%,
        rgba(0,0,0,0.2) 80%,
        transparent 100%
    );
    mask-image: linear-gradient(to bottom,
        black 0%,
        black 30%,
        rgba(0,0,0,0.8) 50%,
        rgba(0,0,0,0.5) 65%,
        rgba(0,0,0,0.2) 80%,
        transparent 100%
    );
    transition: all var(--transition-normal);
}

.nav.scrolled {
    background: rgba(0, 0, 0, 0.85);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1120px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.375rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

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

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 400;
    transition: color var(--transition-fast);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: all var(--transition-fast);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--glass-bg-heavy);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    padding: var(--spacing-lg);
    flex-direction: column;
    gap: var(--spacing-md);
    z-index: 999;
    border-bottom: 0.5px solid var(--glass-border);
}

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

.mobile-menu a {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 100vh;
    padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-2xl);
    position: relative;
    background: var(--bg-hero);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 60%;
    height: 60%;
    background: radial-gradient(ellipse at center, rgba(10, 132, 255, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 50%;
    height: 50%;
    background: radial-gradient(ellipse at center, rgba(175, 82, 222, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.hero .container {
    display: block;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 560px;
    width: 50%;
}

.hero-title {
    font-size: clamp(3rem, 7vw, 4.5rem);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.05;
}

.hero-subtitle {
    font-size: 1.3125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
    font-weight: 400;
}

.hero-cta {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.app-store-badge {
    display: inline-block;
    will-change: transform;
    cursor: pointer;
}

.app-store-badge img {
    height: 52px;
}

.app-store-badge:hover img {
    transform: scale(1.03);
}

.app-store-badge.large img {
    height: 60px;
}

.trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-sm);
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.trust-badge .icon {
    font-size: 1rem;
    filter: grayscale(100%);
    opacity: 0.7;
}

/* Hero Visual - iPhone Mockup */
.hero-visual {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.phone-mockup {
    max-height: min(87vh, 815px);
    width: auto;
    transform: rotateX(3deg) rotateY(-3deg);
    will-change: transform;
    filter: drop-shadow(0 50px 100px rgba(0, 0, 0, 0.5));
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #1C1C1E;
    border-radius: 46px;
    overflow: hidden;
    position: relative;
}

.phone-screen::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    height: 28px;
    background: #000;
    border-radius: 14px;
    z-index: 10;
}

.app-preview {
    padding: var(--spacing-md);
    padding-top: 52px;
    background: linear-gradient(180deg, #1C1C1E 0%, #2C2C2E 100%);
    height: 100%;
}

.preview-header {
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.preview-title {
    font-weight: 600;
    font-size: 1.125rem;
    color: white;
}

.preview-badge {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 100%);
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: white;
}

.preview-card {
    display: flex;
    gap: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.08);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    border: 0.5px solid rgba(255, 255, 255, 0.1);
}

.preview-thumbnail {
    width: 64px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 100%);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    position: relative;
}

.preview-thumbnail::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-left: 8px solid white;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    opacity: 0.9;
}

.preview-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.preview-line {
    height: 8px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

.preview-line.long { width: 100%; }
.preview-line.medium { width: 75%; }
.preview-line.short { width: 50%; }

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-tertiary);
    font-size: 0.8125rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

.scroll-indicator svg {
    width: 20px;
    height: 20px;
}

/* Problem Section - Panoramic Cards */
.problem-section {
    padding: var(--spacing-xl) 0 var(--spacing-3xl);
    background: var(--bg-secondary);
    position: relative;
    overflow-x: clip;
    overflow-y: visible;
}

.problem-section .section-title {
    margin-bottom: var(--spacing-sm);
}

/* Panoramic 3D Card Layout */
.panoramic-cards {
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1500px;
    padding: var(--spacing-xl) 0;
    margin: 0 auto;
    max-width: 100%;
    overflow: visible;
}

.panoramic-card {
    --rotation: calc((var(--index) - 2) * 6deg);
    --translate-x: calc((var(--index) - 2) * 120px);

    display: block;
    flex-shrink: 0;
    width: 340px;
    height: 191px;
    margin: 0 -80px;
    transform-style: preserve-3d;
    transform: translateX(var(--translate-x)) rotateY(var(--rotation));
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    cursor: pointer;
    text-decoration: none;
}

.pano-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 65px;
    height: 45px;
    min-width: 65px;
    max-width: 65px;
    z-index: 3;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
    overflow: visible;
}

.panoramic-card:hover .pano-play-btn {
    opacity: 0.9;
    transform: translate(-50%, -50%) scale(1);
}

.pano-card-inner iframe,
.pano-card-inner .yt-player-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 12px;
    overflow: hidden;
}

.pano-card-inner iframe {
    pointer-events: none;
}

.panoramic-card[data-video-id] .pano-card-inner {
    cursor: pointer;
}

.panoramic-card:hover {
    transform: translateX(var(--translate-x)) rotateY(calc(var(--rotation) * 0.5)) scale(1.08);
    z-index: 10;
}

.panoramic-card.center-card {
    width: 400px;
    height: 225px;
    z-index: 5;
}

.pano-card-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, #2C2C2E 0%, #1C1C1E 100%);
    border-radius: 20px;
    box-shadow:
        0 25px 50px rgba(0, 0, 0, 0.15),
        0 10px 20px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.pano-card-inner.highlight {
    background: linear-gradient(145deg, #2C2C2E 0%, #1C1C1E 100%);
    border: 2px solid var(--primary);
    box-shadow:
        0 25px 60px rgba(10, 132, 255, 0.15),
        0 10px 30px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.pano-time {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.75);
    color: white;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 6px;
    z-index: 2;
    backdrop-filter: blur(4px);
}

.pano-badge {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 20px;
    z-index: 2;
    letter-spacing: 0.02em;
}

.pano-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
    position: absolute;
    top: 0;
    left: 0;
}

.pano-phone {
    max-height: 280px;
    width: auto;
    margin-top: var(--spacing-lg);
    filter: drop-shadow(0 10px 25px rgba(0, 0, 0, 0.15));
}

.panoramic-caption {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-top: var(--spacing-xl);
}

/* Problem/Solution Text Grid */
.problem-section .container:last-child {
    margin-top: var(--spacing-lg);
}

.problem-paragraph {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.3125rem;
    line-height: 1.5;
    color: var(--text-secondary);
}

.problem-paragraph strong {
    color: var(--text-primary);
    font-weight: 600;
}

.card-hover-container {
    text-align: center;
    min-height: 6.5em;
    position: relative;
}

.card-hover-default,
.card-hover-active {
    transition: opacity 0.35s ease;
}

.card-hover-default {
    opacity: 1;
}

.card-hover-default p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.card-hover-active {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
}

.card-hover-container.show-active .card-hover-default {
    opacity: 0;
}

.card-hover-container.show-active .card-hover-active {
    opacity: 1;
}

.card-hover-line1 {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.card-hover-line2 {
    font-size: 1.3125rem;
    line-height: 1.5;
    color: var(--text-secondary);
    text-align: center;
    margin-top: var(--spacing-lg);
}

.text-muted {
    color: var(--text-secondary);
}

.text-highlight {
    color: var(--accent-green);
}

/* How It Works */
.how-it-works {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
}

.how-it-works .section-title {
    margin-bottom: 120px;
}

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

.step {
    text-align: center;
    position: relative;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.step-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-md);
    color: var(--primary);
}

.step h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.step p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    max-width: 280px;
    margin: 0 auto;
}

.pro-tip {
    margin-top: var(--spacing-sm);
    text-align: center;
}

.pro-tip p {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
    font-style: italic;
}

.pro-tip-pill {
    display: inline-block;
    background: linear-gradient(90deg, var(--primary), var(--accent-purple));
    color: white;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

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

/* Features Section */
.features-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.features-section::before {
    content: '';
    position: absolute;
    top: 30%;
    right: -15%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(52, 199, 89, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.features-section::after {
    content: '';
    position: absolute;
    bottom: 20%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(10, 132, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

/* Infinite marquee carousel */
.features-marquee {
    position: relative;
    z-index: 1;
    overflow: hidden;
    margin: var(--spacing-xl) 0;
    -webkit-mask-image: linear-gradient(
        to right,
        transparent 0%,
        black 10%,
        black 90%,
        transparent 100%
    );
    mask-image: linear-gradient(
        to right,
        transparent 0%,
        black 10%,
        black 90%,
        transparent 100%
    );
}

.features-track {
    display: flex;
    width: max-content;
}

.features-track .feature-card {
    margin-right: var(--spacing-md);
}

.feature-card {
    flex: 0 0 320px;
    min-height: 420px;
    background: rgba(28, 28, 30, 0.9);
    padding: var(--spacing-lg);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--glass-shadow);
    will-change: transform;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.feature-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.feature-card h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.feature-image {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: auto;
}

.feature-icon-large {
    font-size: 5rem;
    filter: grayscale(100%);
    opacity: 0.6;
}

/* Social Proof */
.social-proof {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
}

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

.testimonial-card {
    background: rgba(28, 28, 30, 0.85);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    will-change: transform;
    cursor: pointer;
}

.testimonial-stars {
    color: var(--accent-orange);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    line-height: 1.6;
}

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

.author-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8125rem;
    color: white;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    font-size: 0.9375rem;
}

.author-role {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

/* Stats Bar */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

/* Pricing Section */
.pricing-section {
    padding: var(--spacing-xl) 0 var(--spacing-3xl);
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.pricing-section::before {
    content: '';
    position: absolute;
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(175, 82, 222, 0.08) 0%, transparent 60%);
    border-radius: 50%;
    pointer-events: none;
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.toggle-label {
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.save-badge {
    background: var(--accent-green);
    color: white;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.6875rem;
    font-weight: 600;
}

.toggle-switch {
    width: 48px;
    height: 28px;
    background: #2C2C2E;
    border: 0.5px solid rgba(255, 255, 255, 0.15);
    border-radius: 14px;
    cursor: pointer;
    position: relative;
    transition: background var(--transition-fast);
}

.toggle-slider {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 22px;
    height: 22px;
    background: var(--primary);
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.toggle-switch[data-active="yearly"] .toggle-slider {
    transform: translateX(20px);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.pricing-card {
    background: rgba(28, 28, 30, 0.85);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    position: relative;
    will-change: transform;
    cursor: pointer;
}

.pricing-card.popular {
    background: rgba(10, 132, 255, 0.08);
    border-color: var(--primary);
    box-shadow:
        0 0 0 1px var(--primary),
        var(--glass-shadow-elevated);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 0.5px solid var(--glass-border);
}

.pricing-header h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.price-amount {
    font-size: 2.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.price-period {
    color: var(--text-tertiary);
    font-size: 0.9375rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.pricing-features .check {
    color: var(--accent-green);
    font-weight: 700;
}

.pricing-card .btn {
    width: 100%;
}

.pricing-note {
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* FAQ Section */
.faq-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
}

.faq-grid {
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 0.5px solid var(--glass-border);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.0625rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}

.faq-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--text-tertiary);
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.6;
}

.faq-answer a {
    color: var(--primary);
}

/* Final CTA */
.final-cta {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(ellipse at center, rgba(10, 132, 255, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.final-cta .container {
    position: relative;
    z-index: 1;
}

.final-cta .section-title {
    margin-bottom: var(--spacing-sm);
}

.cta-note {
    margin-top: var(--spacing-md);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* Footer */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background: var(--bg-primary);
    border-top: 0.5px solid var(--glass-border);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.footer-brand p {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    line-height: 1.5;
}

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

.footer-column h4 {
    color: var(--text-tertiary);
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-lg);
    border-top: 0.5px solid var(--glass-border);
}

.footer-bottom p {
    color: var(--text-tertiary);
    font-size: 0.8125rem;
}

.footer-badge img {
    height: 36px;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.footer-badge:hover img {
    opacity: 1;
}

/* Feature Modal - Apple Style */
.feature-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    padding: var(--spacing-lg);
}

.feature-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.feature-modal {
    background: #1C1C1E;
    border-radius: 20px;
    max-width: 900px;
    width: 100%;
    padding: var(--spacing-2xl);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.6);
    transform: scale(0.95) translateY(20px);
    transition: transform 0.3s ease;
    max-height: 90vh;
    overflow-y: auto;
}

.feature-modal-overlay.active .feature-modal {
    transform: scale(1) translateY(0);
}

.modal-content {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--spacing-xl);
    align-items: center;
}

.modal-text {
    padding-right: var(--spacing-md);
}

.modal-media {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-iphone {
    max-height: 450px;
    width: auto;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--text-tertiary);
    color: var(--bg-primary);
}

.modal-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.modal-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.modal-description {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.modal-details {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--glass-border-dark);
}

.modal-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.modal-details li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    font-size: 1rem;
    color: var(--text-secondary);
}

.modal-details li::before {
    content: '✓';
    color: var(--primary);
    font-weight: 600;
}

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

    .hero-content {
        max-width: 100%;
        width: 100%;
        margin: 0 auto;
    }

    .trust-badges {
        justify-content: center;
    }

    .hero-visual {
        position: relative;
        width: 100%;
        display: flex;
        justify-content: center;
        margin-top: var(--spacing-xl);
    }

    .phone-mockup {
        max-height: 500px;
        transform: none;
    }

    .panoramic-cards {
        display: none;
    }

    .card-hover-container {
        min-height: auto;
        overflow: hidden;
    }

    .card-hover-active {
        display: none !important;
    }

    .card-hover-default {
        opacity: 1 !important;
    }

    .steps-grid,
    .features-grid,
    .testimonials-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin-left: auto;
        margin-right: auto;
    }

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

    .pricing-card.popular:hover {
        transform: translateY(-4px);
    }

    .stats-bar {
        flex-direction: column;
        gap: var(--spacing-md);
    }

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

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .section-title {
        font-size: clamp(2rem, 6vw, 3rem);
    }

    .hero-title {
        font-size: clamp(2.5rem, 8vw, 3.5rem);
    }

    .steps-grid {
        gap: var(--spacing-xl);
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }

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

    .modal-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .modal-text {
        padding-right: 0;
        order: 1;
    }

    .modal-media {
        order: 2;
    }

    .modal-iphone {
        max-height: 300px;
    }

    .modal-title {
        font-size: 1.75rem;
    }

    .feature-modal {
        padding: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .trust-badges {
        flex-direction: column;
        align-items: center;
    }

    .phone-mockup {
        max-height: 400px;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .stats-bar {
        padding: var(--spacing-md);
    }

    .stat-number {
        font-size: 1.75rem;
    }
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}