/* Clean PDF Landing Page Styles
   Aesthetic: Dark mode with cyan/teal accents, grain texture, geometric elements */

:root {
    --bg-primary: #0a0e14;
    --bg-secondary: #111820;
    --bg-card: #161d27;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent: #00d4aa;
    --accent-hover: #00f5c4;
    --accent-dim: rgba(0, 212, 170, 0.15);
    --accent-glow: rgba(0, 212, 170, 0.4);
    --border: #21262d;
    --border-light: #30363d;
    --danger: #f85149;
    --warning: #d29922;
    --success: #3fb950;
    --font-display: 'Outfit', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-display);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Grain texture overlay */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Gradient background */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(0, 212, 170, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(0, 100, 200, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(100, 0, 150, 0.03) 0%, transparent 70%);
    z-index: -1;
}

/* Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(10, 14, 20, 0.8);
    border-bottom: 1px solid var(--border);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    color: var(--accent);
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

/* Main content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero section */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding-top: 5rem;
}

.badge {
    display: inline-block;
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 170, 0.3);
    letter-spacing: 0.02em;
    margin-bottom: 1.5rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

h1 .accent {
    color: var(--accent);
    position: relative;
}

h1 .accent::after {
    content: '';
    position: absolute;
    bottom: 0.1em;
    left: 0;
    right: 0;
    height: 0.15em;
    background: var(--accent);
    opacity: 0.3;
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 480px;
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 1.6rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 30px var(--accent-glow);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-outline {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    width: 100%;
    justify-content: center;
}

.btn-outline:hover {
    background: var(--accent-dim);
}

.btn-icon {
    font-size: 1.1rem;
}

/* Hero visual */
.hero-visual {
    position: relative;
}

.app-window {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform 0.4s ease;
}

.app-window:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.window-chrome {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: var(--danger); }
.dot.yellow { background: var(--warning); }
.dot.green { background: var(--success); }

.window-title {
    margin-left: auto;
    margin-right: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.window-content {
    padding: 1.5rem;
}

.window-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.mock-btn {
    display: block;
    width: 100%;
    padding: 0.8rem 1rem;
    margin-bottom: 0.6rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: default;
    border: none;
    text-align: center;
    transition: transform 0.2s;
}

.mock-btn.analyze {
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: white;
}

.mock-btn.clean {
    background: linear-gradient(135deg, #059669, #10b981);
    color: white;
}

/* Floating badges */
.floating-badge {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    box-shadow: var(--shadow);
    animation: float 6s ease-in-out infinite;
}

.badge-1 {
    top: 10%;
    right: -10%;
    animation-delay: 0s;
}

.badge-2 {
    bottom: 30%;
    right: -15%;
    animation-delay: 2s;
}

.badge-3 {
    bottom: 10%;
    left: -10%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Features section */
.features {
    padding: 8rem 0;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 3rem;
    letter-spacing: -0.02em;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.analyze-icon {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(59, 130, 246, 0.1));
    color: #3b82f6;
}

.clean-icon {
    background: linear-gradient(135deg, rgba(5, 150, 105, 0.2), rgba(16, 185, 129, 0.1));
    color: #10b981;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding: 0.4rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* Platforms section */
.platforms {
    padding: 6rem 0;
    text-align: center;
}

.platforms-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 500px;
    margin: -1.5rem auto 3rem;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.platform-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.platform-card:hover {
    border-color: var(--border-light);
    transform: translateY(-2px);
}

.platform-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    color: var(--text-secondary);
}

.platform-icon svg {
    width: 100%;
    height: 100%;
}

.platform-card h4 {
    margin-bottom: 0.5rem;
}

.platform-card p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Download section */
.download {
    padding: 8rem 0;
    text-align: center;
}

.download h2 {
    margin-bottom: 3rem;
}

.download-options {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.download-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
}

.download-card.primary {
    border-color: var(--accent);
    background: linear-gradient(180deg, var(--bg-card) 0%, rgba(0, 212, 170, 0.05) 100%);
}

.download-icon {
    width: 40px;
    height: 40px;
    margin: 0 auto 1rem;
    color: var(--text-secondary);
}

.download-icon svg {
    width: 100%;
    height: 100%;
}

.download-card.primary .download-icon {
    color: var(--accent);
}

.download-card h3 {
    margin-bottom: 0.5rem;
}

.download-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.install-cmd {
    display: block;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.8rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 1rem;
    user-select: all;
}

.divider {
    display: block;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-left, .footer-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-sep {
    opacity: 0.3;
}

footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

footer a:hover {
    color: var(--accent);
}

/* Responsive */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 8rem;
        min-height: auto;
        padding-bottom: 4rem;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 2;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .hero-subtitle {
        margin: 0 auto 2rem;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .floating-badge {
        display: none;
    }
    
    .app-window {
        transform: none;
    }
    
    .platform-grid {
        grid-template-columns: 1fr;
    }
    
    .download-options {
        grid-template-columns: 1fr;
    }
    
    .download-card.primary {
        order: -1;
    }
}

@media (max-width: 600px) {
    nav {
        padding: 1rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    main {
        padding: 0 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}