/* Gradient Labs-inspired Design System */
/* Terminal Meme Error Sounds Landing Page */

:root {
    --bg: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.95em;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 0.1em 0.35em;
    border-radius: 6px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.1rem;
}

.logo-mark {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: linear-gradient(135deg, #111827 0%, #4f46e5 45%, #22c55e 100%);
    box-shadow: var(--shadow-sm);
    display: inline-block;
}

.logo-text {
    color: var(--text-primary);
}

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

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    background: var(--text-primary);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: #1e293b;
    transform: translateY(-1px);
}

.btn-primary.btn-large {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    background: transparent;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all 0.2s ease;
    cursor: pointer;
}

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

.btn-secondary.btn-large {
    padding: 14px 28px;
    font-size: 1rem;
}

/* Hero Section */
.hero {
    padding: 180px 24px 120px;
    text-align: center;
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

.hero-inner {
    max-width: 760px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 640px;
    margin-bottom: 60px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.stat-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 32px;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--text-muted);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.stat-logo {
    width: 44px;
    height: 44px;
    border-radius: 999px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.stat-dot {
    width: 14px;
    height: 14px;
    border-radius: 999px;
    display: inline-block;
}

.stat-dot-indigo { background: #4f46e5; }
.stat-dot-emerald { background: #22c55e; }
.stat-dot-slate { background: #334155; }

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.stat-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Testimonial Section */
.testimonial-section {
    background: var(--bg-secondary);
}

.testimonial-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 48px;
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-quote {
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: 32px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--text-primary);
}

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

.author-name {
    font-weight: 600;
    color: var(--text-primary);
}

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

/* Security Grid */
.security-section {
    background: var(--bg);
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 48px;
}

.security-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all 0.3s ease;
}

.security-card:hover {
    border-color: var(--border);
    background: var(--bg);
}

.security-card.featured {
    background: var(--text-primary);
    color: #fff;
    border-color: var(--text-primary);
}

.security-card.featured h4 {
    color: #fff;
}

.security-card.featured p {
    color: rgba(255, 255, 255, 0.8);
}

.security-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.security-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How It Works */
.how-section {
    background: var(--bg-secondary);
}

.how-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.how-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s ease;
}

.how-card:hover {
    border-color: var(--text-muted);
    box-shadow: var(--shadow);
}

.how-number {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 16px;
    letter-spacing: 0.05em;
}

.how-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.how-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Insights */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.insight-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all 0.25s ease;
}

.insight-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
    border-color: var(--text-muted);
}

.insight-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.insight-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    background: var(--bg);
}

.cta-card {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border-radius: var(--radius-xl);
    padding: 80px 48px;
    text-align: center;
    color: #fff;
}

.cta-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: #fff;
}

.cta-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: #fff;
    color: var(--text-primary);
}

.cta-section .btn-primary:hover {
    background: #f8f9fa;
}

.cta-section .btn-secondary {
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
}

.cta-section .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-column h5 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 12px;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

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

.footer-bottom a {
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        padding: 12px 16px;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: 140px 16px 80px;
    }

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

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section {
        padding: 60px 0;
    }

    .stats-grid,
    .security-grid,
    .how-grid {
        grid-template-columns: 1fr;
    }

    .testimonial-card {
        padding: 32px 24px;
    }

    .testimonial-quote {
        font-size: 1.25rem;
    }

    .cta-card {
        padding: 48px 24px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-inner,
.stat-card,
.testimonial-card,
.security-card,
.how-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Developer Section */
.developer-section {
    background: var(--bg);
    padding: 80px 0;
}

.developer-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
}

.developer-frame {
    width: 220px;
    height: 220px;
    background: linear-gradient(135deg, var(--accent) 0%, #22c55e 100%);
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    position: relative;
    animation: morph 8s ease-in-out infinite;
    box-shadow: var(--shadow-lg);
}

@keyframes morph {
    0% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
    50% { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
    100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
}

.developer-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--bg);
    z-index: 1;
}

.developer-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.developer-subtext {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}