/* ============================================
   TrackSplit - Chromatic Wave Design System
   A music-inspired, dynamic interface
   ============================================ */

/* Fonts: Satoshi for headings, Plus Jakarta Sans for body */
@import url('https://api.fontshare.com/v2/css?f[]=satoshi@700,900&display=swap');

:root {
    /* Primary gradient - matches app icon */
    --gradient-primary: linear-gradient(135deg, #9333EA 0%, #3B82F6 100%);
    --gradient-primary-hover: linear-gradient(135deg, #A855F7 0%, #60A5FA 100%);
    --gradient-radial: radial-gradient(ellipse at 30% 20%, rgba(147, 51, 234, 0.15) 0%, transparent 50%),
                       radial-gradient(ellipse at 70% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);

    /* Core colors */
    --purple: #9333EA;
    --purple-light: #A855F7;
    --blue: #3B82F6;
    --blue-light: #60A5FA;

    /* Stem colors - from the app */
    --stem-vocals: #A855F7;
    --stem-drums: #3B82F6;
    --stem-bass: #F97316;
    --stem-guitar: #22C55E;
    --stem-piano: #FACC15;
    --stem-other: #06B6D4;

    /* Backgrounds */
    --bg-primary: #08080C;
    --bg-secondary: #0C0C12;
    --bg-card: #111118;
    --bg-card-hover: #16161F;
    --bg-elevated: #1A1A24;

    /* Text */
    --text-primary: #FFFFFF;
    --text-secondary: #94949F;
    --text-muted: #5C5C66;

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(147, 51, 234, 0.3);

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;

    /* Typography */
    --font-display: 'Satoshi', -apple-system, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-base: 300ms;
    --duration-slow: 500ms;
    --duration-slower: 800ms;
}

/* ============================================
   Base Reset & Typography
   ============================================ */

*, *::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-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-narrow {
    max-width: 900px;
}

/* ============================================
   Animated Background Particles
   ============================================ */

.particles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

.particle:nth-child(1) { background: var(--stem-vocals); left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { background: var(--stem-drums); left: 20%; top: 80%; animation-delay: -3s; }
.particle:nth-child(3) { background: var(--stem-bass); left: 30%; top: 40%; animation-delay: -6s; }
.particle:nth-child(4) { background: var(--stem-guitar); left: 50%; top: 60%; animation-delay: -9s; }
.particle:nth-child(5) { background: var(--stem-piano); left: 70%; top: 30%; animation-delay: -12s; }
.particle:nth-child(6) { background: var(--stem-other); left: 85%; top: 70%; animation-delay: -15s; }
.particle:nth-child(7) { background: var(--stem-vocals); left: 95%; top: 10%; animation-delay: -18s; }
.particle:nth-child(8) { background: var(--stem-drums); left: 5%; top: 90%; animation-delay: -4s; }
.particle:nth-child(9) { background: var(--stem-guitar); left: 40%; top: 15%; animation-delay: -8s; }
.particle:nth-child(10) { background: var(--stem-other); left: 60%; top: 85%; animation-delay: -14s; }

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    25% {
        transform: translate(30px, -50px) scale(1.5);
        opacity: 0.6;
    }
    50% {
        transform: translate(-20px, -100px) scale(1);
        opacity: 0.4;
    }
    75% {
        transform: translate(40px, -50px) scale(1.2);
        opacity: 0.5;
    }
}

/* ============================================
   Navigation
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: all var(--duration-base) var(--ease-out-expo);
}

.nav.scrolled {
    background: rgba(8, 8, 12, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.nav-logo img {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
}

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

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--duration-fast) ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--duration-base) var(--ease-out-expo);
}

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

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

.nav-cta .btn {
    padding: 0.6rem 1.25rem;
    font-size: 0.875rem;
}

/* Mobile Nav Toggle */
.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--duration-base) ease;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--duration-base) var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(147, 51, 234, 0.3),
                0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(147, 51, 234, 0.4),
                0 0 0 1px rgba(255, 255, 255, 0.2) inset;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-glow);
}

.btn-lg {
    padding: 1.125rem 2.25rem;
    font-size: 1rem;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: calc(80px + var(--space-4xl)) 0 var(--space-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-radial);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md) var(--space-xs) var(--space-xs);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.8s var(--ease-out-expo) both;
}

.hero-badge-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
}

.hero-badge-icon svg {
    width: 12px;
    height: 12px;
    color: white;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 900;
    line-height: 1;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.1s both;
}

.hero-title-line {
    display: block;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.2s both;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.3s both;
}

/* ============================================
   Features - Bento Grid
   ============================================ */

.features {
    position: relative;
    padding: var(--space-5xl) 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-4xl);
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--purple-light);
    margin-bottom: var(--space-md);
}

.section-label::before,
.section-label::after {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--gradient-primary);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-lg);
}

.bento-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    transition: all var(--duration-base) var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.bento-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--duration-base) ease;
}

.bento-item:hover {
    transform: translateY(-4px);
}

/* Match hover glow to icon color */
.bento-item:has(.bento-icon-purple):hover {
    border-color: rgba(168, 85, 247, 0.4);
    box-shadow: 0 8px 30px rgba(168, 85, 247, 0.1);
}
.bento-item:has(.bento-icon-blue):hover {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.1);
}
.bento-item:has(.bento-icon-orange):hover {
    border-color: rgba(249, 115, 22, 0.4);
    box-shadow: 0 8px 30px rgba(249, 115, 22, 0.1);
}
.bento-item:has(.bento-icon-green):hover {
    border-color: rgba(34, 197, 94, 0.4);
    box-shadow: 0 8px 30px rgba(34, 197, 94, 0.1);
}
.bento-item:has(.bento-icon-yellow):hover {
    border-color: rgba(250, 204, 21, 0.4);
    box-shadow: 0 8px 30px rgba(250, 204, 21, 0.1);
}
.bento-item:has(.bento-icon-cyan):hover {
    border-color: rgba(6, 182, 212, 0.4);
    box-shadow: 0 8px 30px rgba(6, 182, 212, 0.1);
}

.bento-item:hover::before {
    opacity: 0.03;
}

.bento-item > * {
    position: relative;
    z-index: 1;
}

/* Large item - spans 8 columns */
.bento-large {
    grid-column: span 8;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

/* Medium items - span 4 columns */
.bento-medium {
    grid-column: span 4;
}

/* Small items - span 4 columns */
.bento-small {
    grid-column: span 4;
}

.bento-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.bento-icon svg {
    width: 28px;
    height: 28px;
}

.bento-icon-purple { background: rgba(168, 85, 247, 0.15); color: var(--stem-vocals); }
.bento-icon-blue { background: rgba(59, 130, 246, 0.15); color: var(--stem-drums); }
.bento-icon-orange { background: rgba(249, 115, 22, 0.15); color: var(--stem-bass); }
.bento-icon-green { background: rgba(34, 197, 94, 0.15); color: var(--stem-guitar); }
.bento-icon-yellow { background: rgba(250, 204, 21, 0.15); color: var(--stem-piano); }
.bento-icon-cyan { background: rgba(6, 182, 212, 0.15); color: var(--stem-other); }

.bento-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.bento-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* Large item visual */
.bento-visual {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.stem-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
    transition: transform var(--duration-fast) ease;
}

.stem-tag:hover {
    transform: scale(1.05);
}

.stem-tag-vocals { background: rgba(168, 85, 247, 0.15); color: var(--stem-vocals); }
.stem-tag-drums { background: rgba(59, 130, 246, 0.15); color: var(--stem-drums); }
.stem-tag-bass { background: rgba(249, 115, 22, 0.15); color: var(--stem-bass); }
.stem-tag-guitar { background: rgba(34, 197, 94, 0.15); color: var(--stem-guitar); }
.stem-tag-piano { background: rgba(250, 204, 21, 0.15); color: var(--stem-piano); }
.stem-tag-other { background: rgba(6, 182, 212, 0.15); color: var(--stem-other); }

.stem-tag-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    animation: stemPulse 2s ease-in-out infinite;
}

.stem-tag-vocals .stem-tag-dot { background: var(--stem-vocals); }
.stem-tag-drums .stem-tag-dot { background: var(--stem-drums); }
.stem-tag-bass .stem-tag-dot { background: var(--stem-bass); }
.stem-tag-guitar .stem-tag-dot { background: var(--stem-guitar); }
.stem-tag-piano .stem-tag-dot { background: var(--stem-piano); }
.stem-tag-other .stem-tag-dot { background: var(--stem-other); }

@keyframes stemPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.8); }
}

/* ============================================
   App Preview Section
   ============================================ */

.app-preview {
    position: relative;
    padding: var(--space-5xl) 0;
    overflow: hidden;
}

.app-preview-wrapper {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.app-preview-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(147, 51, 234, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.app-preview-image {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.5),
                0 0 0 1px var(--border-subtle);
}

.app-preview-image img {
    width: 100%;
    display: block;
}

/* Screenshot switching for dark/light mode */
.app-preview-image img.screenshot-light {
    display: none;
}

.app-preview-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-3xl);
}

.preview-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all var(--duration-base) var(--ease-out-expo);
}

.preview-feature:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
}

.preview-feature-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.preview-feature-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.preview-feature h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.preview-feature p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   How It Works - Timeline
   ============================================ */

.how-it-works {
    position: relative;
    padding: var(--space-5xl) 0;
    background: var(--bg-secondary);
}

.timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 80px;
    right: 80px;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0.3;
}

.timeline-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    position: relative;
}

.timeline-number {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    color: white;
    margin-bottom: var(--space-lg);
    position: relative;
    z-index: 1;
    box-shadow: 0 8px 30px rgba(147, 51, 234, 0.3);
}

.timeline-content {
    max-width: 200px;
}

.timeline-content h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.timeline-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   Use Cases
   ============================================ */

.use-cases {
    padding: var(--space-5xl) 0;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.use-case-card {
    padding: var(--space-2xl);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    transition: all var(--duration-base) var(--ease-out-expo);
    text-align: center;
}

.use-case-card:hover {
    transform: translateY(-8px);
}

/* Varied glow effects for use case cards */
.use-case-card[data-glow="purple"]:hover {
    border-color: rgba(168, 85, 247, 0.5);
    box-shadow: 0 8px 30px rgba(168, 85, 247, 0.15);
}
.use-case-card[data-glow="green"]:hover {
    border-color: rgba(34, 197, 94, 0.5);
    box-shadow: 0 8px 30px rgba(34, 197, 94, 0.15);
}
.use-case-card[data-glow="blue"]:hover {
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.15);
}
.use-case-card[data-glow="orange"]:hover {
    border-color: rgba(249, 115, 22, 0.5);
    box-shadow: 0 8px 30px rgba(249, 115, 22, 0.15);
}
.use-case-card[data-glow="cyan"]:hover {
    border-color: rgba(6, 182, 212, 0.5);
    box-shadow: 0 8px 30px rgba(6, 182, 212, 0.15);
}
.use-case-card[data-glow="yellow"]:hover {
    border-color: rgba(250, 204, 21, 0.5);
    box-shadow: 0 8px 30px rgba(250, 204, 21, 0.15);
}

.use-case-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.use-case-icon svg {
    width: 100%;
    height: 100%;
    transition: transform var(--duration-base) var(--ease-out-expo);
}

.use-case-card:hover .use-case-icon svg {
    transform: scale(1.1);
}

.use-case-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.use-case-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ============================================
   Comparison Table
   ============================================ */

.comparison {
    padding: var(--space-5xl) 0;
    background: var(--bg-secondary);
}

.comparison-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-subtle);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-lg);
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
}

.comparison-table th {
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-elevated);
}

.comparison-table th.highlight {
    background: linear-gradient(180deg, rgba(147, 51, 234, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    color: var(--text-primary);
}

.comparison-table td.highlight {
    background: rgba(147, 51, 234, 0.03);
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.comparison-table .check {
    color: var(--stem-guitar);
    font-weight: bold;
    margin-right: 0.5rem;
}

.comparison-table .cross {
    color: #EF4444;
    margin-right: 0.5rem;
}

/* ============================================
   Pricing
   ============================================ */

.pricing {
    padding: var(--space-5xl) 0;
}

.pricing-card {
    max-width: 480px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--space-3xl);
    text-align: center;
    position: relative;
}

.pricing-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-2xl);
    padding: 2px;
    background: var(--gradient-primary);
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-sm) var(--space-lg);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-amount {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    margin-bottom: var(--space-xs);
}

.pricing-currency {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 0.5rem;
    color: var(--text-secondary);
}

.pricing-value {
    font-family: var(--font-display);
    font-size: 5rem;
    font-weight: 900;
    line-height: 1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.pricing-cents {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 0.5rem;
    color: var(--text-secondary);
}

.pricing-period {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

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

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

.pricing-features li svg {
    width: 20px;
    height: 20px;
    color: var(--stem-guitar);
    flex-shrink: 0;
}

.pricing-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.pricing-note {
    margin-top: var(--space-lg);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ============================================
   Final CTA
   ============================================ */

.final-cta {
    padding: var(--space-5xl) 0;
    background: var(--bg-secondary);
    text-align: center;
}

.final-cta h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--space-md);
}

.final-cta p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    position: relative;
    padding: var(--space-4xl) 0 var(--space-xl);
    background: var(--bg-primary);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-4xl);
    margin-bottom: var(--space-3xl);
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.footer-logo img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
}

.footer-tagline {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.6;
}

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

.footer-column h4 {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.footer-column a {
    display: block;
    font-size: 0.9375rem;
    color: var(--text-muted);
    padding: var(--space-xs) 0;
    transition: color var(--duration-fast) ease;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-made {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ============================================
   Animations
   ============================================ */

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Scroll-triggered animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--duration-slower) var(--ease-out-expo),
                transform var(--duration-slower) var(--ease-out-expo);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================
   Legal & Support Pages
   ============================================ */

.page-header {
    padding: calc(80px + var(--space-4xl)) 0 var(--space-3xl);
    text-align: center;
    background: var(--gradient-radial);
}

.page-header h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: var(--space-md);
}

.page-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.page-content {
    padding: var(--space-4xl) 0;
}

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

.legal-section {
    margin-bottom: var(--space-3xl);
}

.legal-section h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-subtle);
}

.legal-section p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.legal-section ul {
    margin-bottom: var(--space-md);
    padding-left: var(--space-lg);
}

.legal-section li {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    padding-left: var(--space-md);
    position: relative;
}

.legal-section li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    background: var(--gradient-primary);
    border-radius: 50%;
}

/* Support Page */
.support-quick-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-4xl);
}

.quick-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    transition: all var(--duration-base) var(--ease-out-expo);
    text-align: center;
}

.quick-link:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
}

.quick-link svg {
    width: 32px;
    height: 32px;
    color: var(--purple-light);
}

.quick-link span {
    font-weight: 600;
    font-size: 0.9375rem;
}

.support-section {
    max-width: 800px;
    margin: 0 auto var(--space-4xl);
}

.support-section h2 {
    font-size: 1.75rem;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-subtle);
}

/* FAQ Accordion */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--duration-fast) ease;
}

.faq-item:hover {
    border-color: var(--border-light);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}

.faq-question svg {
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    transition: transform var(--duration-base) var(--ease-out-expo);
}

.faq-item.open .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--text-secondary);
    line-height: 1.7;
}

.faq-item.open .faq-answer {
    display: block;
}

.faq-answer ul {
    margin: var(--space-sm) 0;
    padding-left: var(--space-lg);
}

.faq-answer li {
    margin-bottom: var(--space-xs);
    padding-left: var(--space-sm);
    position: relative;
}

.faq-answer li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 4px;
    height: 4px;
    background: var(--purple-light);
    border-radius: 50%;
}

/* Requirements Grid */
.requirements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.requirement-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    position: relative;
}

.requirement-card-recommended {
    border-color: var(--purple);
}

.requirement-card-recommended::before {
    content: '';
    position: absolute;
    inset: -1px;
    background: var(--gradient-primary);
    border-radius: calc(var(--radius-xl) + 1px);
    z-index: -1;
    opacity: 0.3;
}

.recommended-badge {
    position: absolute;
    top: -10px;
    left: var(--space-lg);
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
}

.requirement-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.requirement-card ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.requirement-card li {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.requirement-note {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-subtle);
    font-size: 0.875rem;
    color: var(--purple-light);
}

/* Troubleshooting */
.troubleshooting-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.troubleshoot-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
}

.troubleshoot-item h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
}

.troubleshoot-item ol {
    counter-reset: steps;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.troubleshoot-item li {
    color: var(--text-secondary);
    counter-increment: steps;
    padding-left: var(--space-xl);
    position: relative;
}

.troubleshoot-item li::before {
    content: counter(steps);
    position: absolute;
    left: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
}

/* Contact */
.contact-card {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    margin-bottom: var(--space-xl);
}

.contact-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.contact-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.contact-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.contact-email {
    font-size: 1.25rem;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-note {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.contact-tips {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
}

.contact-tips h4 {
    font-size: 1rem;
    margin-bottom: var(--space-md);
}

.contact-tips ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    padding-left: var(--space-lg);
}

.contact-tips li {
    color: var(--text-secondary);
    padding-left: var(--space-sm);
    position: relative;
}

.contact-tips li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 4px;
    height: 4px;
    background: var(--purple-light);
    border-radius: 50%;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .bento-large {
        grid-column: span 12;
    }

    .bento-medium,
    .bento-small {
        grid-column: span 6;
    }

    .timeline {
        flex-direction: column;
        gap: var(--space-3xl);
    }

    .timeline::before {
        top: 0;
        bottom: 0;
        left: 40px;
        right: auto;
        width: 2px;
        height: auto;
    }

    .timeline-step {
        flex-direction: row;
        text-align: left;
        gap: var(--space-xl);
    }

    .timeline-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        flex-shrink: 0;
    }

    .timeline-content {
        max-width: none;
    }
}

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

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

    .hero {
        min-height: auto;
        padding: calc(80px + var(--space-3xl)) 0 var(--space-3xl);
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 320px;
        text-align: center;
    }

    .btn-icon {
        display: none;
    }

    .bento-large {
        grid-template-columns: 1fr;
    }

    .bento-medium,
    .bento-small {
        grid-column: span 12;
    }

    .app-preview-features {
        grid-template-columns: 1fr;
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

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

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

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

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

    .contact-card {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .footer-links {
        grid-template-columns: 1fr;
    }

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

/* Mobile nav open state */
body.nav-open {
    overflow: hidden;
}

body.nav-open .main-content {
    display: none;
}

body.nav-open .nav {
    background: var(--bg-primary);
}

body.nav-open .nav-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 100px;
    background: var(--bg-primary);
    padding: var(--space-2xl) var(--space-xl);
    gap: var(--space-lg);
    overflow-y: auto;
}

body.nav-open .nav-links a {
    font-size: 1.25rem;
    color: var(--text-primary);
}

body.nav-open .nav-cta {
    display: flex;
    justify-content: center;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-xl);
    background: var(--bg-primary);
    border-top: 1px solid var(--border-subtle);
}

/* ============================================
   Light Mode - Auto-switches based on system preference
   ============================================ */

@media (prefers-color-scheme: light) {
    :root {
        /* Backgrounds - warm off-white tones */
        --bg-primary: #FAFAFA;
        --bg-secondary: #F5F5F7;
        --bg-card: #FFFFFF;
        --bg-card-hover: #F8F8FA;
        --bg-elevated: #FFFFFF;

        /* Text - dark grays for readability */
        --text-primary: #1A1A1A;
        --text-secondary: #5C5C66;
        --text-muted: #8C8C96;

        /* Borders - dark alpha instead of white alpha */
        --border-subtle: rgba(0, 0, 0, 0.06);
        --border-light: rgba(0, 0, 0, 0.1);
        --border-glow: rgba(147, 51, 234, 0.25);

        /* Adjusted radial gradient for light backgrounds */
        --gradient-radial: radial-gradient(ellipse at 30% 20%, rgba(147, 51, 234, 0.06) 0%, transparent 50%),
                           radial-gradient(ellipse at 70% 80%, rgba(59, 130, 246, 0.04) 0%, transparent 50%);
    }

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

    /* Navigation - light blur background */
    .nav.scrolled {
        background: rgba(250, 250, 250, 0.85);
        border-bottom-color: rgba(0, 0, 0, 0.06);
    }

    /* Particles - reduce opacity for light backgrounds */
    .particle {
        opacity: 0.25;
    }

    /* Buttons - adjusted shadows */
    .btn-primary {
        box-shadow: 0 4px 20px rgba(147, 51, 234, 0.25),
                    0 0 0 1px rgba(0, 0, 0, 0.05) inset;
    }

    .btn-primary:hover {
        box-shadow: 0 8px 30px rgba(147, 51, 234, 0.35),
                    0 0 0 1px rgba(0, 0, 0, 0.08) inset;
    }

    .btn-secondary {
        background: var(--bg-card);
        border-color: rgba(0, 0, 0, 0.1);
    }

    .btn-secondary:hover {
        background: var(--bg-card-hover);
        border-color: var(--border-glow);
    }

    /* Bento grid items - softer shadows */
    .bento-item {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    }

    .bento-item:has(.bento-icon-purple):hover {
        box-shadow: 0 8px 30px rgba(168, 85, 247, 0.12);
    }
    .bento-item:has(.bento-icon-blue):hover {
        box-shadow: 0 8px 30px rgba(59, 130, 246, 0.12);
    }
    .bento-item:has(.bento-icon-orange):hover {
        box-shadow: 0 8px 30px rgba(249, 115, 22, 0.12);
    }
    .bento-item:has(.bento-icon-green):hover {
        box-shadow: 0 8px 30px rgba(34, 197, 94, 0.12);
    }
    .bento-item:has(.bento-icon-yellow):hover {
        box-shadow: 0 8px 30px rgba(250, 204, 21, 0.15);
    }
    .bento-item:has(.bento-icon-cyan):hover {
        box-shadow: 0 8px 30px rgba(6, 182, 212, 0.12);
    }

    /* Bento icon backgrounds - slightly more visible */
    .bento-icon-purple { background: rgba(168, 85, 247, 0.1); }
    .bento-icon-blue { background: rgba(59, 130, 246, 0.1); }
    .bento-icon-orange { background: rgba(249, 115, 22, 0.1); }
    .bento-icon-green { background: rgba(34, 197, 94, 0.1); }
    .bento-icon-yellow { background: rgba(250, 204, 21, 0.12); }
    .bento-icon-cyan { background: rgba(6, 182, 212, 0.1); }

    /* Stem tags - adjusted for light bg */
    .stem-tag-vocals { background: rgba(168, 85, 247, 0.1); }
    .stem-tag-drums { background: rgba(59, 130, 246, 0.1); }
    .stem-tag-bass { background: rgba(249, 115, 22, 0.1); }
    .stem-tag-guitar { background: rgba(34, 197, 94, 0.1); }
    .stem-tag-piano { background: rgba(250, 204, 21, 0.12); }
    .stem-tag-other { background: rgba(6, 182, 212, 0.1); }

    /* App preview - softer shadow */
    .app-preview-image {
        box-shadow: 0 25px 80px -15px rgba(0, 0, 0, 0.15),
                    0 0 0 1px rgba(0, 0, 0, 0.05);
    }

    .app-preview-glow {
        background: radial-gradient(ellipse, rgba(147, 51, 234, 0.06) 0%, transparent 50%);
    }

    /* Screenshot switching - show light, hide dark */
    .app-preview-image img.screenshot-dark {
        display: none;
    }
    .app-preview-image img.screenshot-light {
        display: block;
    }

    /* Preview features - softer look */
    .preview-feature {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    }

    .preview-feature:hover {
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    }

    /* Timeline numbers - keep gradient, adjust shadow */
    .timeline-number {
        box-shadow: 0 8px 30px rgba(147, 51, 234, 0.2);
    }

    /* Use case cards - colored hover glows */
    .use-case-card {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    }

    .use-case-card[data-glow="purple"]:hover {
        box-shadow: 0 8px 30px rgba(168, 85, 247, 0.12);
    }
    .use-case-card[data-glow="green"]:hover {
        box-shadow: 0 8px 30px rgba(34, 197, 94, 0.12);
    }
    .use-case-card[data-glow="blue"]:hover {
        box-shadow: 0 8px 30px rgba(59, 130, 246, 0.12);
    }
    .use-case-card[data-glow="orange"]:hover {
        box-shadow: 0 8px 30px rgba(249, 115, 22, 0.12);
    }
    .use-case-card[data-glow="cyan"]:hover {
        box-shadow: 0 8px 30px rgba(6, 182, 212, 0.12);
    }
    .use-case-card[data-glow="yellow"]:hover {
        box-shadow: 0 8px 30px rgba(250, 204, 21, 0.15);
    }

    /* Comparison table */
    .comparison-table th.highlight {
        background: linear-gradient(180deg, rgba(147, 51, 234, 0.06) 0%, rgba(59, 130, 246, 0.06) 100%);
    }

    .comparison-table td.highlight {
        background: rgba(147, 51, 234, 0.03);
    }

    /* Pricing card */
    .pricing-card {
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    }

    /* FAQ items */
    .faq-item {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    }

    /* Requirement cards */
    .requirement-card {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    }

    .requirement-card-recommended::before {
        opacity: 0.15;
    }

    /* Contact card */
    .contact-card {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    }

    /* Contact tips */
    .contact-tips {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    }

    /* Quick links */
    .quick-link {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    }

    .quick-link:hover {
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    }

    /* Troubleshoot items */
    .troubleshoot-item {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    }
}