/* CSS Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Dark Theme (Default) */
:root, [data-theme="dark"] {
    --color-bg: #0a0a0b;
    --color-surface: #141416;
    --color-surface-elevated: #1c1c1e;
    --color-surface-hover: #242428;
    --color-text: #f5f5f7;
    --color-text-secondary: #86868b;
    --color-text-tertiary: #6e6e73;
    --color-accent: #0a84ff;
    --color-accent-hover: #0070e0;
    --color-accent-subtle: rgba(10, 132, 255, 0.1);
    --color-accent-glow: rgba(10, 132, 255, 0.25);
    --color-border: #2c2c2e;
    --color-border-light: #3a3a3c;
    --color-success: #30d158;
    --color-warning: #ffd60a;
    --color-error: #ff453a;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(10, 132, 255, 0.15);
    --hero-glow: radial-gradient(circle at 30% 30%, var(--color-accent-subtle) 0%, transparent 50%),
                  radial-gradient(circle at 70% 70%, rgba(90, 200, 250, 0.05) 0%, transparent 50%);
}

/* Light Theme */
[data-theme="light"] {
    --color-bg: #ffffff;
    --color-surface: #f5f5f7;
    --color-surface-elevated: #ffffff;
    --color-surface-hover: #e8e8ed;
    --color-text: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-text-tertiary: #86868b;
    --color-accent: #0071e3;
    --color-accent-hover: #0077ed;
    --color-accent-subtle: rgba(0, 113, 227, 0.1);
    --color-accent-glow: rgba(0, 113, 227, 0.25);
    --color-border: #d2d2d7;
    --color-border-light: #e8e8ed;
    --color-success: #34c759;
    --color-warning: #ff9500;
    --color-error: #ff3b30;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.16);
    --shadow-glow: 0 0 40px rgba(0, 113, 227, 0.2);
    --hero-glow: radial-gradient(circle at 30% 30%, rgba(0, 113, 227, 0.08) 0%, transparent 50%),
                  radial-gradient(circle at 70% 70%, rgba(90, 200, 250, 0.05) 0%, transparent 50%);
}

:root {
    --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-xxl: 8rem;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

img, svg {
    display: block;
}

/* Section Base */
section {
    padding: var(--spacing-xl) 0;
    max-width: 100%;
    margin: 0 auto;
    position: relative;
}

/* Inner content wrapper with padding */
section > * {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* Full-width sections */
.hero, .how-it-works, .features, .pricing, .faq, .download, .footer {
    width: 100%;
}

section h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    position: relative;
    display: inline-block;
    width: 100%;
}

section h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), #5ac8fa);
    border-radius: 2px;
    margin: var(--spacing-xs) auto 0;
    opacity: 0.6;
}

.section-desc {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: clamp(1rem, 2vw, 1.125rem);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    border-bottom: none;
    display: flex;
    justify-content: center;
    width: 100%;
    transition: backdrop-filter 0.4s ease, background 0.4s ease;
}

.header-content {
    width: 100%;
    max-width: 1200px;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-top: none;
    transition: all 0.4s ease;
}

[data-theme="dark"] .header-content {
    background: rgba(10, 10, 11, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-top: none;
}

/* Header on scroll - glassmorphism */
header.scrolled .header-content {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] header.scrolled .header-content {
    background: rgba(20, 20, 22, 0.85);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header nav {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-shrink: 0;
}

header nav a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
}

header nav a:hover {
    color: var(--color-text);
    background: var(--color-surface-elevated);
}

header nav .cta {
    background: var(--color-accent);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

header nav .cta:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* Theme Controls */
.theme-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: nowrap;
    flex-shrink: 0;
}

.theme-toggle,
.auto-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    color: var(--color-text-secondary);
    position: relative;
}

.theme-toggle {
    width: 40px;
}

.auto-toggle {
    padding: 0 14px;
    font-size: 13px;
    font-weight: 500;
    min-width: 60px;
}

.theme-toggle:hover,
.auto-toggle:hover {
    border-color: var(--color-accent);
    transform: scale(1.05);
}

.theme-toggle .theme-icon {
    font-size: 18px;
    user-select: none;
}

.auto-toggle .auto-label {
    user-select: none;
}

/* Auto toggle active state - ON */
.auto-toggle.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
    box-shadow: 0 0 10px rgba(10, 132, 255, 0.4);
}

.auto-toggle.active .auto-label::after {
    content: ' ✓';
    font-weight: bold;
}

/* Auto toggle inactive - OFF */
.auto-toggle:not(.active) {
    background: var(--color-surface-elevated);
    border-color: var(--color-border-light);
    color: var(--color-text-secondary);
}

.auto-toggle:not(.active) .auto-label::after {
    content: ' ✗';
    opacity: 0.5;
}

/* Theme Toggle Animation */
@keyframes sunRise {
    from {
        opacity: 0;
        transform: rotate(-90deg) scale(0);
    }
    to {
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }
}

@keyframes moonRise {
    from {
        opacity: 0;
        transform: rotate(90deg) scale(0);
    }
    to {
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-sm) var(--spacing-md);
    position: relative;
    overflow: hidden;
}

/* Animated mesh gradient background */
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--hero-glow);
    pointer-events: none;
    animation: heroGlow 20s ease-in-out infinite;
}

/* Grid pattern overlay */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(10, 132, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(10, 132, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

[data-theme="light"] .hero::after {
    background-image: 
        linear-gradient(rgba(0, 113, 227, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 113, 227, 0.04) 1px, transparent 1px);
}

@keyframes heroGlow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-3%, -5%) scale(1.03); }
    66% { transform: translate(5%, -2%) scale(1.05); }
}

/* Floating particles */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

.hero-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0.2;
    animation: floatUp linear infinite;
}

@keyframes floatUp {
    0% {
        transform: translateY(100vh) translateX(0) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-10vh) translateX(50px) scale(1);
        opacity: 0;
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border-light);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.hero-badge:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.hero-badge .pulse {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 5.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
    text-wrap: balance;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-accent) 0%, #5ac8fa 50%, #30d158 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero .subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
    max-width: 600px;
    text-wrap: pretty;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.stat {
    text-align: center;
    position: relative;
    padding: 0 var(--spacing-sm);
}

.stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: calc(-1 * var(--spacing-lg) / 2);
    top: 20%;
    height: 60%;
    width: 1px;
    background: linear-gradient(to bottom, transparent, var(--color-border), transparent);
}

.stat-value {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 800;
    background: linear-gradient(180deg, var(--color-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Hero CTA */
.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.cta-primary, .cta-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.cta-primary {
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    color: white;
    border: none;
    box-shadow: 0 4px 15px var(--color-accent-glow);
}

.cta-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.cta-primary:hover {
    background: linear-gradient(135deg, var(--color-accent-hover), #4ab8ea);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--color-accent-glow);
}

.cta-primary:hover::before {
    left: 100%;
}

.cta-secondary {
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border-light);
    color: var(--color-text);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.cta-secondary:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.system-req {
    color: var(--color-text-tertiary);
    font-size: 0.85rem;
    position: relative;
    z-index: 1;
}

/* App Preview */
.app-preview {
    margin-top: var(--spacing-lg);
    position: relative;
    z-index: 1;
    perspective: 1200px;
}

.app-window {
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    background: var(--color-surface);
    background: linear-gradient(145deg, var(--color-surface) 0%, rgba(20, 20, 22, 0.95) 100%);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow), 0 0 0 1px rgba(255,255,255,0.05);
    transform: rotateX(5deg) translateY(0);
    transition: var(--transition);
    position: relative;
}

.app-window::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 30%);
    pointer-events: none;
}

.app-window:hover {
    transform: rotateX(0deg) translateY(-12px);
    box-shadow: var(--shadow-lg), 0 0 60px var(--color-accent-glow), 0 0 0 1px rgba(255,255,255,0.08);
}

.window-controls {
    display: flex;
    gap: 8px;
    padding: var(--spacing-sm);
    background: var(--color-surface-elevated);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

.window-controls .control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    transition: transform 0.2s ease;
}

.window-controls .control:hover {
    transform: scale(1.2);
}

.window-controls .control.red { background: #ff5f57; }
.window-controls .control.yellow { background: #febc2e; }
.window-controls .control.green { background: #28c840; }

.app-content {
    padding: var(--spacing-md);
    min-height: 200px;
    position: relative;
}

.hotkey-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-surface-elevated);
    background: linear-gradient(135deg, var(--color-surface-elevated) 0%, rgba(28, 28, 30, 0.8) 100%);
    border: 1px solid var(--color-accent);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    position: relative;
    overflow: hidden;
}

.hotkey-indicator.active {
    animation: recordingPulse 2s ease-in-out infinite;
}

@keyframes recordingPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(10, 132, 255, 0.4); }
    50% { box-shadow: 0 0 0 12px rgba(10, 132, 255, 0); }
}

.hotkey-key {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    color: white;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1.2rem;
    box-shadow: 0 2px 10px rgba(10, 132, 255, 0.3);
}

.hotkey-status {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.transcription-preview {
    background: var(--color-bg);
    background: linear-gradient(180deg, var(--color-bg) 0%, rgba(10, 10, 11, 0.95) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    text-align: left;
    position: relative;
    min-height: 80px;
}

.transcription-preview .cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background: var(--color-accent);
    margin-left: 2px;
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Trust Bar */
.trust-bar {
    background: var(--color-surface);
    background: linear-gradient(135deg, var(--color-surface) 0%, rgba(28, 28, 30, 0.6) 100%);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) var(--spacing-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    max-width: 100%;
    position: relative;
    overflow: hidden;
}

.trust-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    opacity: 0.2;
}

.trust-text {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.trust-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.trust-rating .stars {
    color: var(--color-warning);
    letter-spacing: 2px;
}

.trust-rating span {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.trust-links {
    display: flex;
    gap: var(--spacing-md);
}

.trust-links a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
}

.trust-links a:hover {
    color: var(--color-accent);
    border-color: var(--color-border);
    background: var(--color-surface-elevated);
}

/* How It Works */
.how-it-works {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 50%, var(--color-bg) 100%);
    position: relative;
    overflow: hidden;
}

.how-it-works::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 1px 1px, var(--color-border) 1px, transparent 0);
    background-size: 40px 40px;
    opacity: 0.3;
    pointer-events: none;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.step {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    background: linear-gradient(135deg, var(--color-surface) 0%, rgba(28, 28, 30, 0.6) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.step:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(10, 132, 255, 0.3);
}

.step-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.step-visual {
    margin-top: var(--spacing-sm);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    transition: var(--transition);
}

.step:hover .step-visual {
    background: var(--color-accent-subtle);
    transform: scale(1.05);
}

.demo-video {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.video-placeholder {
    aspect-ratio: 16/9;
    background: var(--color-surface-elevated);
    background: linear-gradient(135deg, var(--color-surface-elevated) 0%, rgba(28, 28, 30, 0.8) 100%);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.video-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(10, 132, 255, 0.08) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.video-placeholder:hover::before {
    opacity: 1;
}

.video-placeholder:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.play-button {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    border-radius: 50%;
    color: white;
    margin-bottom: var(--spacing-sm);
    transition: var(--transition-spring);
    box-shadow: 0 4px 20px rgba(10, 132, 255, 0.3);
    position: relative;
    z-index: 1;
}

.video-placeholder:hover .play-button {
    transform: scale(1.15);
    box-shadow: 0 8px 30px rgba(10, 132, 255, 0.4);
}

.video-placeholder p {
    color: var(--color-text-secondary);
    position: relative;
    z-index: 1;
}

/* Features */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--color-surface);
    background: linear-gradient(145deg, var(--color-surface) 0%, rgba(28, 28, 30, 0.6) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-lg);
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(10, 132, 255, 0.08) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    background: linear-gradient(145deg, var(--color-surface-hover) 0%, rgba(36, 36, 40, 0.8) 100%);
    transform: translateY(-6px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md), 0 0 30px rgba(10, 132, 255, 0.08);
}

.feature-card.large {
    grid-row: span 2;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    display: inline-block;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(-3deg);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.feature-detail {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
}

.feature-detail code {
    background: var(--color-bg);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 0.85rem;
    color: var(--color-accent);
}

/* Comparison */
.comparison {
    background: var(--color-surface);
    background: linear-gradient(145deg, var(--color-surface) 0%, rgba(28, 28, 30, 0.6) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.comparison::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(10, 132, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.comparison-table {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: var(--spacing-xs);
    position: relative;
    z-index: 1;
}

.comparison-header {
    display: contents;
}

.comparison-header .empty {
    grid-column: 1;
}

.comparison-header .brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    font-weight: 700;
}

.comparison-header .brand:first-child {
    background: linear-gradient(135deg, var(--color-accent-subtle), rgba(10, 132, 255, 0.05));
    border-radius: var(--radius-md);
    border: 1px solid rgba(10, 132, 255, 0.15);
}

.brand-logo {
    font-size: 2rem;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.brand span {
    font-weight: 600;
    color: var(--color-text);
}

.comparison-row {
    display: contents;
}

.comparison-row .feature {
    padding: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-weight: 500;
    display: flex;
    align-items: center;
}

.comparison-row .value {
    text-align: center;
    padding: var(--spacing-sm);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.comparison-row .value.good {
    color: var(--color-success);
    background: rgba(48, 209, 88, 0.05);
}
.comparison-row .value.bad {
    color: var(--color-error);
    background: rgba(255, 69, 58, 0.05);
}
.comparison-row .value.neutral {
    color: var(--color-text-tertiary);
    background: rgba(110, 110, 115, 0.05);
}

.comparison-row:hover .value {
    transform: scale(1.05);
}

/* Languages */
.languages {
    text-align: center;
}

.language-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.language-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-surface);
    background: linear-gradient(135deg, var(--color-surface) 0%, rgba(28, 28, 30, 0.6) 100%);
    border: 1px solid var(--color-border);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: default;
    position: relative;
    overflow: hidden;
}

.language-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-md);
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(10, 132, 255, 0.08) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.language-item:hover::before {
    opacity: 1;
}

.language-item:hover {
    border-color: var(--color-accent);
    transform: scale(1.05) translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.language-item.popular {
    border-color: rgba(10, 132, 255, 0.3);
}

.language-item.popular:hover {
    border-color: var(--color-accent);
}

.lang-code {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lang-name {
    font-size: 0.9rem;
    font-weight: 500;
}

.lang-badge {
    font-size: 0.7rem;
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    color: white;
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.language-more {
    color: var(--color-text-tertiary);
    font-size: 0.9rem;
}

/* Use Cases */
.use-cases {
    background: var(--color-surface);
    background: linear-gradient(145deg, var(--color-surface) 0%, rgba(28, 28, 30, 0.6) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.case-card {
    background: var(--color-surface-elevated);
    background: linear-gradient(135deg, var(--color-surface-elevated) 0%, rgba(28, 28, 30, 0.8) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-lg);
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(10, 132, 255, 0.06) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.case-card:hover::before {
    opacity: 1;
}

.case-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-6px);
    box-shadow: var(--shadow-md), 0 0 30px rgba(10, 132, 255, 0.06);
}

.case-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    display: inline-block;
    transition: transform 0.3s ease;
}

.case-card:hover .case-icon {
    transform: scale(1.15) rotate(-5deg);
}

.case-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.case-card p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* Testimonials */
.testimonials {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 50%, var(--color-bg) 100%);
    position: relative;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(10, 132, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.testimonial-card {
    background: var(--color-surface-elevated);
    background: linear-gradient(135deg, var(--color-surface-elevated) 0%, rgba(28, 28, 30, 0.8) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-lg);
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(10, 132, 255, 0.06) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.testimonial-card:hover::before {
    opacity: 1;
}

.testimonial-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.testimonial-content .stars {
    color: var(--color-warning);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 2px;
}

.testimonial-content p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.author-avatar {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    color: white;
    font-weight: 700;
    border-radius: var(--radius-full);
    box-shadow: 0 2px 8px rgba(10, 132, 255, 0.3);
}

.author-name {
    font-weight: 600;
}

.author-role {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    align-items: stretch;
}

.pricing-card {
    background: var(--color-surface);
    background: linear-gradient(145deg, var(--color-surface) 0%, rgba(28, 28, 30, 0.6) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-md);
    position: relative;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-xl);
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(10, 132, 255, 0.06) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.pricing-card:hover::before {
    opacity: 1;
}

.pricing-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md), 0 0 30px rgba(10, 132, 255, 0.06);
}

.pricing-card.featured {
    background: linear-gradient(135deg, rgba(10, 132, 255, 0.08) 0%, var(--color-surface) 100%);
    border-color: var(--color-accent);
    border-width: 2px;
    transform: scale(1.02);
    box-shadow: var(--shadow-glow);
}

.pricing-card.featured:hover {
    transform: scale(1.02) translateY(-4px);
    box-shadow: var(--shadow-glow), 0 0 40px rgba(10, 132, 255, 0.15);
}

.pricing-card .badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 12px rgba(10, 132, 255, 0.3);
    z-index: 2;
}

.pricing-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.pricing-card .price {
    font-size: 3rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 0.25rem;
    background: linear-gradient(180deg, var(--color-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.pricing-card .price .period {
    font-size: 1rem;
    color: var(--color-text-tertiary);
    -webkit-text-fill-color: var(--color-text-tertiary);
}

.pricing-card .price-desc {
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.pricing-card ul {
    flex: 1;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.pricing-card li {
    padding: 0.5rem 0;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pricing-card .check {
    color: var(--color-success);
    font-weight: bold;
    font-size: 1.1rem;
}

.pricing-card .btn {
    display: block;
    width: 100%;
    padding: 1rem;
    text-align: center;
    background: var(--color-surface-elevated);
    background: linear-gradient(135deg, var(--color-surface-elevated) 0%, rgba(28, 28, 30, 0.8) 100%);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.pricing-card .btn:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.pricing-card .btn.primary {
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    border-color: var(--color-accent);
    color: white;
    box-shadow: 0 4px 15px var(--color-accent-glow);
}

.pricing-card .btn.primary:hover {
    background: linear-gradient(135deg, var(--color-accent-hover), #4ab8ea);
    box-shadow: 0 8px 25px var(--color-accent-glow);
    transform: translateY(-2px);
}

.pricing-note {
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: 0.85rem;
    margin-top: var(--spacing-md);
}

.pricing-note a {
    color: var(--color-accent);
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-list details {
    background: var(--color-surface);
    background: linear-gradient(135deg, var(--color-surface) 0%, rgba(28, 28, 30, 0.6) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    transition: var(--transition);
}

.faq-list details:hover {
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-sm);
}

.faq-list details[open] {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.faq-list summary {
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-list summary:hover {
    background: var(--color-surface-elevated);
}

.faq-list summary::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-accent);
    transition: var(--transition);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-accent-subtle);
}

.faq-list details[open] summary::after {
    transform: rotate(45deg);
    background: var(--color-accent);
    color: white;
}

.faq-list details p {
    padding: 0 var(--spacing-md) var(--spacing-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-sm);
    margin-top: 0;
}

/* Changelog */
.changelog {
    background: var(--color-surface);
    background: linear-gradient(145deg, var(--color-surface) 0%, rgba(28, 28, 30, 0.6) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-left: 2px solid var(--color-border);
    padding-left: var(--spacing-md);
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: var(--spacing-md);
    width: 10px;
    height: 10px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--color-accent-subtle);
    transition: var(--transition);
}

.timeline-item:hover::before {
    box-shadow: 0 0 0 8px var(--color-accent-subtle);
    transform: scale(1.2);
}

.timeline-item:first-child::before {
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
}

.timeline-version {
    font-weight: 700;
    color: var(--color-accent);
    font-size: 1.1rem;
}

.timeline-date {
    color: var(--color-text-tertiary);
    font-size: 0.85rem;
    font-weight: 500;
}

.timeline-content h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.timeline-content ul {
    list-style: none;
    padding-left: 0;
}

.timeline-content li {
    color: var(--color-text-secondary);
    padding: 0.35rem 0;
    padding-left: 1.5rem;
    position: relative;
    transition: var(--transition);
}

.timeline-content li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 1.2rem;
    line-height: 1;
}

.timeline-content li:hover {
    color: var(--color-text);
    padding-left: 1.75rem;
}

.changelog-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--spacing-md);
    color: var(--color-accent);
    font-weight: 600;
    transition: var(--transition);
}

.changelog-link:hover {
    text-decoration: underline;
    transform: translateX(4px);
}

/* Download CTA */
.download-cta {
    text-align: center;
    background: linear-gradient(135deg, var(--color-accent-subtle) 0%, rgba(90, 200, 250, 0.05) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xxl) var(--spacing-sm);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.download-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 70%, rgba(10, 132, 255, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.download-cta h2 {
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.download-cta > p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.btn-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    color: white;
    font-size: 1.25rem;
    font-weight: 600;
    padding: 1.25rem 3rem;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    z-index: 1;
    overflow: hidden;
    box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn-large::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-large:hover {
    background: linear-gradient(135deg, var(--color-accent-hover), #4ab8ea);
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 8px 35px var(--color-accent-glow);
}

.btn-large:hover::before {
    left: 100%;
}

.version-info {
    margin-top: var(--spacing-sm);
    color: var(--color-text-tertiary);
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
}

.download-checks {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.check-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    background: var(--color-surface);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.check-item:hover {
    border-color: var(--color-success);
    color: var(--color-success);
}

.check-item svg {
    color: var(--color-success);
}

/* Footer */
footer {
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) var(--spacing-sm) var(--spacing-md);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    opacity: 0.3;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    grid-column: 1;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-accent), #5ac8fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface-elevated);
    background: linear-gradient(135deg, var(--color-surface-elevated) 0%, rgba(28, 28, 30, 0.8) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: var(--transition);
}

.footer-social a:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.footer-links-group h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links-group a {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    padding: 0.35rem 0;
    transition: var(--transition);
    position: relative;
}

.footer-links-group a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    color: var(--color-text-tertiary);
    font-size: 0.85rem;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    background: linear-gradient(180deg, var(--color-surface) 0%, rgba(20, 20, 22, 0.98) 100%);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md);
    display: none;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 999;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
}

.mobile-menu.active {
    display: flex;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-menu a {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.mobile-menu a:hover {
    background: var(--color-surface-elevated);
    color: var(--color-accent);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    header nav {
        display: none;
    }

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

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

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .cta-primary, .cta-secondary {
        width: 100%;
        justify-content: center;
    }

    .app-window {
        transform: rotateX(0deg);
    }

    .app-window:hover {
        transform: translateY(-5px);
    }

    .steps {
        grid-template-columns: 1fr;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .feature-card.large {
        grid-row: span 1;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

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

    .comparison-table {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .comparison-header .brand,
    .comparison-row .value {
        text-align: left;
    }

    .comparison-header .empty,
    .comparison-row .feature {
        display: none;
    }

    .testimonial-grid {
        grid-template-columns: 1fr;
    }

    .trust-bar {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

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

    .download-checks {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

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

    .hero-cta {
        gap: 0.5rem;
    }

    .cta-primary, .cta-secondary {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }

    .case-grid {
        grid-template-columns: 1fr;
    }

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

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Staggered animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Shimmer effect for buttons */
@keyframes shimmer {
    0% {
        background-position: -200% center;
    }
    100% {
        background-position: 200% center;
    }
}

/* Smooth entrance for hero elements */
.hero > * {
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.hero > *:nth-child(1) { animation-delay: 0.1s; }
.hero > *:nth-child(2) { animation-delay: 0.2s; }
.hero > *:nth-child(3) { animation-delay: 0.3s; }
.hero > *:nth-child(4) { animation-delay: 0.4s; }
.hero > *:nth-child(5) { animation-delay: 0.5s; }
.hero > *:nth-child(6) { animation-delay: 0.6s; }
.hero > *:nth-child(7) { animation-delay: 0.7s; }

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-light);
}

/* Selection */
::selection {
    background: var(--color-accent);
    color: white;
}

/* 4K Screens (2560px+) */
@media (min-width: 2560px) {
    :root {
        --spacing-xs: 0.75rem;
        --spacing-sm: 1.5rem;
        --spacing-md: 3rem;
        --spacing-lg: 6rem;
        --spacing-xl: 9rem;
        --spacing-xxl: 12rem;
    }

    html {
        font-size: 18px;
    }

    .logo {
        font-size: 2rem;
    }

    header nav a {
        font-size: 1.1rem;
    }

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


/* Medium screens - ensure theme controls stay horizontal */
@media (min-width: 769px) and (max-width: 1200px) {
    header nav a {
        padding: 0.4rem 0.6rem;
        font-size: 0.85rem;
    }
    
    .auto-toggle {
        padding: 0 10px;
        font-size: 12px;
    }
    
    .theme-toggle {
        width: 36px;
    }
}