/* ================================
   Modern Triva Landing Page
   Inspired by Next.js & Fuse.ai
   ================================ */

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

:root {
    /* Colors - Dark Theme */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-tertiary: #71717a;
    --border-primary: #27272a;
    --border-secondary: #18181b;

    /* Accent Colors */
    --accent-primary: #3b82f6;
    --accent-secondary: #8b5cf6;
    --accent-hover: #60a5fa;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --gradient-glow: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.15), transparent 50%);

    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Spacing */
    --container-width: 1280px;
    --nav-height: 64px;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: #18181b;
}

::-webkit-scrollbar-thumb {
  background: #27272a;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #3f3f46;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-secondary);
    transition: all 0.3s ease;
}

.nav.scrolled {
    background: rgba(0, 0, 0, 0.95);
    border-bottom-color: var(--border-primary);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity 0.2s;
}

.logo:hover {
    opacity: 0.8;
}

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

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}

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

.github-link {
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-nav {
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    color: var(--text-primary) !important;
    transition: all 0.2s;
}

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

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

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

.hero {
    position: relative;
    padding: 180px 0 120px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1400px;
    height: 600px;
    background: var(--gradient-glow);
    opacity: 0.4;
    pointer-events: none;
    filter: blur(120px);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 100px;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

.badge-pulse {
    width: 6px;
    height: 6px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.9); }
}

.hero-title {
    font-size: 72px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

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

.hero-subtitle {
    font-size: 20px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 64px;
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    border-radius: 10px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    border-radius: 10px;
    border: 1px solid var(--border-primary);
    transition: all 0.3s;
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-primary);
}

/* Hero Code Window */
.hero-visual {
    margin-top: 80px;
    animation: fadeInUp 0.8s ease 0.5s backwards;
}

.code-window {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.window-controls {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-secondary);
}

.window-controls span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-primary);
}

.window-controls span:nth-child(1) { background: #ff5f57; }
.window-controls span:nth-child(2) { background: #febc2e; }
.window-controls span:nth-child(3) { background: #28c840; }

.code-content {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.7;
    overflow-x: auto;
}

.code-content pre {
    margin: 0;
}

.code-content code {
    color: var(--text-secondary);
}

/* Code Syntax Highlighting */
.token-import { color: #c678dd; }
.token-keyword { color: #c678dd; }
.token-function { color: #61afef; }
.token-string { color: #98c379; }
.token-number { color: #d19a66; }
.token-comment { color: #5c6370; font-style: italic; }

/* ================================
   Features Section
   ================================ */

.features {
    padding: 110px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
}

.section-header h2 {
    font-size: 48px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 16px;
    transition: all 0.3s;
}

.feature-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-secondary);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 12px;
    margin-bottom: 20px;
    color: white;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.features .bio {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    max-width: 750px;
    margin: auto;
    margin-top: 65px;
}

.features .bio a {
    color: var(--text-secondary);
    font-weight: 600;
}

.features .bio a:hover {
    color: #3b82f6;
    cursor: pointer;
}

/* ================================
   Adapters Section
   ================================ */

.adapters {
    padding: 120px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    border-bottom: 1px solid var(--border-primary);
}

.adapter-showcase {
    max-width: 1000px;
    margin: 0 auto;
}

.adapter-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    overflow-x: auto;
    padding-bottom: 12px;
}

.adapter-tabs::-webkit-scrollbar {
    height: 6px;
}

.adapter-tabs::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.adapter-tabs::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 3px;
}

.adapter-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.adapter-tab:hover {
    color: var(--text-primary);
    border-color: var(--border-secondary);
}

.adapter-tab.active {
    background: #2c2c2c;
    color: white;
    border-color: transparent;
}

.adapter-tab-icon {
    width: 18px;
    height: 18px;
    background: transparent;
    border-radius: 4px;
    opacity: 0.3;
}

.adapter-tab.active .adapter-tab-icon {
    opacity: 1;
}

.adapter-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 32px;
    align-items: start;
}

.adapter-info {
    padding: 32px;
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
}

.adapter-info h4 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.adapter-info ul {
    list-style: none;
    margin-bottom: 24px;
}

.adapter-info li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 15px;
}

.adapter-info li svg {
    color: var(--accent-primary);
    flex-shrink: 0;
}

.adapter-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: gap 0.2s;
}

.adapter-link:hover {
    gap: 10px;
}

.adapter-showcase .bio {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    max-width: 850px;
    margin: auto;
    margin-top: 65px;
}

.adapter-showcase .bio a {
    color: var(--text-secondary);
    font-weight: 600;
}

.adapter-showcase .bio a:hover {
    color: #3b82f6;
    cursor: pointer;
}

/* ================================
   CTA Section
   ================================ */

.cta {
    padding: 120px 0;
    position: relative;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

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

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

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

.footer {
    padding: 60px 0 40px;
    border-top: 1px solid var(--border-primary);
}

.footer-content {
    margin-bottom: 60px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 16px;
    line-height: 1.6;
    max-width: 320px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-logo svg {
    color: var(--accent-primary);
}

.footer-links {
    display: flex;
    justify-content: center;
    text-align: center;
    margin: 15px 0;
}

.footer-links .item {
    margin: 0 25px;
    display: block;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
    transition: color 0.2s;
    text-decoration: none;
}

.footer-links a {
 text-decoration: none;
}

.footer-links .item:hover {
    color: var(--text-primary);
    cursor: pointer;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--border-secondary);
}

.footer-bottom p {
    color: var(--text-tertiary);
    font-size: 14px;
}

.footer-social {
    display: flex;
    gap: 16px;
}

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

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

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

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

[data-animate] {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

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

@media (max-width: 1024px) {
    .hero-title {
        font-size: 56px;
    }

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

    .adapter-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

@media (max-width: 768px) {
    :root {
        --nav-height: 56px;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu {
        display: flex;
    }

    .hero {
        padding: 140px 0 80px;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-number {
        font-size: 28px;
    }

    .stat-number svg {
        fill: #50b862;
        stroke: #50b862;
    }

    .section-header h2 {
        font-size: 36px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .cta-content h2 {
        font-size: 40px;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

.icon-tooltip {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.tooltip {
  position: absolute;
  bottom: 150%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: #55555573;
  color: #fff;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s ease, transform 0.12s ease;
}

.icon-tooltip:hover .tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.icon-tooltip:focus-within .tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}