/* MixStudioDAW Landing Page Stylesheet */

:root {
    /* Color Palette */
    --bg-dark: hsl(230, 20%, 8%);
    --bg-card: hsl(230, 20%, 12%);
    --bg-card-hover: hsl(230, 20%, 15%);
    --border-color: hsla(230, 20%, 25%, 0.4);
    --border-hover: hsla(270, 90%, 60%, 0.4);
    
    --text-primary: hsl(0, 0%, 95%);
    --text-secondary: hsl(230, 10%, 70%);
    --text-muted: hsl(230, 10%, 50%);
    
    --accent-purple: hsl(270, 90%, 60%);
    --accent-cyan: hsl(190, 90%, 50%);
    --accent-purple-glow: hsla(270, 90%, 60%, 0.25);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition-speed: 0.3s;
    --border-radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

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

/* Gradients & Utilities */
.text-gradient {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-purple));
    color: white;
    box-shadow: 0 8px 20px var(--accent-purple-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px var(--accent-purple-glow);
    filter: brightness(1.1);
}

.btn-secondary {
    background: hsla(0, 0%, 100%, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: hsla(0, 0%, 100%, 0.1);
    transform: translateY(-2px);
    border-color: var(--text-secondary);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-nav {
    padding: 8px 20px;
    font-size: 14px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    color: white;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(8, 9, 13, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-speed);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 24px;
    letter-spacing: -0.03em;
}

.logo-accent {
    color: var(--accent-purple);
}

.logo-pro {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    color: white;
    font-size: 13px;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 4px;
    vertical-align: middle;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 500;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle .bar {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-speed);
}

/* Hero Section */
.hero {
    position: relative;
    padding: 160px 0 100px 0;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: -10%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-purple-glow) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 54px;
    line-height: 1.1;
    margin-bottom: 24px;
    font-weight: 800;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

/* Hero UI Mockup Visual */
.visual-card-wrapper {
    perspective: 1000px;
}

.visual-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0,0,0,0.4), 0 0 40px var(--accent-purple-glow);
    transform: rotateY(-8deg) rotateX(4deg);
    transition: transform var(--transition-speed) ease;
}

.visual-card:hover {
    transform: rotateY(-2deg) rotateX(1deg) scale(1.02);
}

.window-header {
    background: hsla(230, 20%, 6%, 0.5);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.window-header .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 6px;
}

.window-header .red { background-color: #ff5f56; }
.window-header .yellow { background-color: #ffbd2e; }
.window-header .green { background-color: #27c93f; }

.window-title {
    font-size: 12px;
    color: var(--text-muted);
    margin-left: 12px;
    font-family: var(--font-heading);
}

.track-list {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.track {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.track.active {
    background: rgba(147, 51, 234, 0.08);
    border-color: var(--accent-purple);
}

.track-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.track-number {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--accent-cyan);
}

.track-name {
    font-size: 13px;
    font-weight: 500;
}

.track-badge {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    font-size: 9px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
}

.mixer-preview {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    padding: 8px 16px 20px 16px;
    background: rgba(0,0,0,0.15);
}

.fader-strip {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.fader-track {
    width: 4px;
    height: 90px;
    background: rgba(255,255,255,0.05);
    border-radius: 2px;
    position: relative;
}

.fader-thumb {
    width: 14px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 2px;
    position: absolute;
    left: -5px;
    box-shadow: 0 0 8px var(--accent-cyan);
}

.fader-label {
    font-size: 10px;
    color: var(--text-muted);
}

/* Section Common */
.section {
    padding: 100px 0;
    border-top: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-title {
    font-size: 40px;
    margin-bottom: 16px;
    font-weight: 800;
}

.section-tagline {
    font-size: 18px;
    color: var(--text-secondary);
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px 32px;
    border-radius: var(--border-radius);
    transition: all var(--transition-speed) ease;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background-color: hsla(270, 90%, 60%, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.feature-icon::before {
    content: '';
    font-size: 24px;
}

.icon-ai::before { content: '🧠'; }
.icon-routing::before { content: '🎛️'; }
.icon-plugin::before { content: '🔌'; }
.icon-sync::before { content: '📶'; }
.icon-airdrop::before { content: '📡'; }
.icon-lyrics::before { content: '📄'; }

.feature-card-title {
    font-size: 20px;
    font-weight: 600;
}

.feature-card-desc {
    font-size: 15px;
    color: var(--text-secondary);
}

/* Pricing Section */
.pricing-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
    align-items: center;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 48px 32px;
    position: relative;
    transition: all var(--transition-speed) ease;
}

.pricing-card.popular {
    border: 2px solid var(--accent-purple);
    box-shadow: 0 10px 40px var(--accent-purple-glow);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    right: 32px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 0.05em;
}

.pricing-header {
    margin-bottom: 32px;
}

.tier-name {
    font-size: 24px;
    margin-bottom: 12px;
}

.tier-price {
    margin-bottom: 16px;
}

.price-val {
    font-size: 48px;
    font-weight: 800;
    font-family: var(--font-heading);
}

.price-period {
    font-size: 16px;
    color: var(--text-muted);
    margin-left: 8px;
}

.tier-desc {
    color: var(--text-secondary);
    font-size: 14px;
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.pricing-features li {
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li::before {
    content: '✓';
    color: var(--accent-cyan);
    font-weight: 800;
}

.pricing-features li.disabled {
    color: var(--text-muted);
    text-decoration: line-through;
}

.pricing-features li.disabled::before {
    content: '✕';
    color: var(--text-muted);
}

/* Download Section */
.download-box {
    background: radial-gradient(circle at top right, var(--accent-purple-glow), transparent), var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 60px 40px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.download-content h2 {
    font-size: 36px;
    margin-bottom: 16px;
}

.download-content p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px auto;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-download {
    background: hsla(0, 0%, 100%, 0.04);
    border: 1px solid var(--border-color);
    padding: 14px 24px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
    transition: all var(--transition-speed) ease;
}

.btn-download:hover {
    background: hsla(0, 0%, 100%, 0.08);
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
}

.btn-icon {
    font-size: 28px;
    line-height: 1;
}

.icon-apple::before { content: '🍏'; }
.icon-windows::before { content: '🪟'; }
.icon-linux::before { content: '🐧'; }

.btn-text {
    display: flex;
    flex-direction: column;
}

.btn-text .small-text {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-text .large-text {
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-heading);
}

/* FAQ Section */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 24px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-arrow {
    width: 12px;
    height: 12px;
    border-bottom: 2px solid var(--text-secondary);
    border-right: 2px solid var(--text-secondary);
    transform: rotate(45deg);
    transition: transform var(--transition-speed) ease;
}

.faq-item.active .faq-arrow {
    transform: rotate(-135deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-speed) ease-out, padding var(--transition-speed) ease;
    padding: 0 24px;
    color: var(--text-secondary);
    font-size: 15px;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 24px;
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

.footer-links {
    margin-top: 16px;
    display: flex;
    justify-content: center;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
}

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

/* Responsive Design */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }
    
    .hero-subtitle {
        margin: 0 auto 40px auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .visual-card {
        transform: none;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
        max-width: 450px;
    }
    
    .pricing-card.popular {
        transform: scale(1.02);
    }
}

@media (max-width: 768px) {
    .navbar {
        background: var(--bg-dark);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--bg-dark);
        flex-direction: column;
        padding: 40px 24px;
        gap: 24px;
        transition: left 0.4s ease;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .btn-nav {
        width: 100%;
    }
    
    .hero-title {
        font-size: 40px;
    }
}