/* ==========================================================================
   labs.kiw.one — Design System & Stylesheet (Cyber Glassmorphism Theme)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Color Palette Tokens */
  --bg-dark: #0B0F17;
  --bg-card: rgba(18, 26, 41, 0.65);
  --bg-card-hover: rgba(26, 38, 59, 0.85);
  --bg-glass-modal: rgba(13, 19, 31, 0.92);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glass-hover: rgba(63, 185, 80, 0.4);
  
  --text-primary: #F0F6FC;
  --text-secondary: #8B949E;
  --text-muted: #6E7681;

  /* Brand & Accent Highlights */
  --accent-emerald: #3FB950;
  --accent-emerald-glow: rgba(63, 185, 80, 0.25);
  --accent-cyan: #22D3EE;
  --accent-cyan-glow: rgba(34, 211, 238, 0.25);
  --accent-violet: #8B5CF6;
  --accent-violet-glow: rgba(139, 92, 246, 0.25);
  --accent-gold: #F59E0B;
  --accent-gold-glow: rgba(245, 158, 11, 0.25);

  /* Fonts */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-code: 'JetBrains Mono', monospace;

  /* Layout Constants */
  --header-height: 80px;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

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

/* Background Animated Canvas & Grid Overlay */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  pointer-events: none;
}

.bg-grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: -1;
  pointer-events: none;
}

/* Typography Utilities */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, #FFFFFF 0%, #A5B4FC 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-emerald {
  background: linear-gradient(135deg, #FFFFFF 0%, var(--accent-emerald) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   Header & Navbar
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(11, 15, 23, 0.75);
  border-bottom: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-badge {
  background: rgba(63, 185, 80, 0.15);
  border: 1px solid var(--accent-emerald);
  color: var(--accent-emerald);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.logo-title {
  font-size: 1.35rem;
  font-weight: 800;
}

.logo-title span {
  color: var(--accent-cyan);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Cloudflare Edge & Lang Switcher Badge */
.cloudflare-edge-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  padding: 0.4rem 0.8rem;
  border-radius: 30px;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(63, 185, 80, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(63, 185, 80, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(63, 185, 80, 0); }
}

.lang-switch-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.lang-switch-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent-cyan);
}

/* ==========================================================================
   Hero Section & Key Metrics Counter
   ========================================================================== */
.hero-section {
  padding: 4rem 0 2.5rem;
  text-align: center;
  position: relative;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: #C084FC;
  padding: 0.4rem 1rem;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.15;
  margin-bottom: 1.2rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 750px;
  margin: 0 auto 3rem;
}

.hero-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.metric-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-3px);
}

.metric-number {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--font-code);
  color: var(--accent-cyan);
  margin-bottom: 0.25rem;
}

.metric-number.award {
  color: var(--accent-gold);
}

.metric-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ==========================================================================
   Filter Bar & Controls
   ========================================================================== */
.controls-wrapper {
  margin: 2.5rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.search-box-wrapper {
  position: relative;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 20px;
  height: 20px;
}

.search-input {
  width: 100%;
  padding: 1rem 1rem 1rem 3.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-main);
  outline: none;
  backdrop-filter: blur(16px);
  transition: var(--transition-fast);
}

.search-input:focus {
  border-color: var(--accent-emerald);
  box-shadow: 0 0 20px var(--accent-emerald-glow);
}

.filter-pills-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  padding: 0.55rem 1.1rem;
  border-radius: 30px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.filter-btn.active {
  background: rgba(63, 185, 80, 0.18);
  border-color: var(--accent-emerald);
  color: var(--accent-emerald);
  box-shadow: 0 0 15px var(--accent-emerald-glow);
}

/* ==========================================================================
   Bento Grid Layout
   ========================================================================== */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.bento-card {
  grid-column: span 4;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.bento-card:hover {
  border-color: var(--border-glass-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
}

/* Flagship / Featured Cards span 6 columns */
.bento-card.featured {
  grid-column: span 6;
  background: linear-gradient(145deg, rgba(22, 33, 54, 0.8) 0%, rgba(13, 20, 33, 0.85) 100%);
  border: 1px solid rgba(63, 185, 80, 0.3);
}

.bento-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.bento-card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.card-status-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-gold {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
}

.badge-green {
  background: rgba(63, 185, 80, 0.15);
  border: 1px solid var(--accent-emerald);
  color: var(--accent-emerald);
}

.badge-cyan {
  background: rgba(34, 211, 238, 0.15);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
}

.badge-purple {
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid var(--accent-violet);
  color: var(--accent-violet);
}

.badge-emerald {
  background: rgba(52, 211, 153, 0.15);
  border: 1px solid #34D399;
  color: #34D399;
}

.bento-award-banner {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #FCD34D;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-image-preview {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  border: 1px solid var(--border-glass);
}

.card-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.card-subtitle {
  font-size: 0.92rem;
  color: var(--accent-cyan);
  margin-bottom: 0.85rem;
  font-weight: 500;
}

.card-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.tag-chip {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
}

.bento-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-glass);
  padding-top: 1rem;
  margin-top: auto;
}

.view-details-btn {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-emerald);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.bento-card:hover .view-details-btn {
  color: var(--accent-cyan);
  transform: translateX(4px);
  transition: var(--transition-fast);
}

/* ==========================================================================
   Interactive Glassmorphic Modal & API Sandbox View
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(5, 8, 15, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-smooth);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: var(--bg-glass-modal);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
  position: relative;
  padding: 2.25rem;
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--accent-cyan);
}

.modal-header {
  margin-bottom: 1.5rem;
}

.modal-tabs {
  display: flex;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-glass);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
}

.modal-tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
  border-bottom: 2px solid transparent;
}

.modal-tab-btn.active {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
}

/* API Sandbox Code Simulator */
.sandbox-box {
  background: #06090F;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  font-family: var(--font-code);
  font-size: 0.88rem;
  overflow-x: auto;
  color: #A5B4FC;
  margin-top: 1rem;
}

.sandbox-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.run-sandbox-btn {
  background: var(--accent-emerald);
  color: #000;
  border: none;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
  font-size: 0.85rem;
  transition: var(--transition-fast);
}

.run-sandbox-btn:hover {
  background: #34D399;
  box-shadow: 0 0 15px var(--accent-emerald-glow);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-glass);
  padding: 3rem 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

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

/* Responsive Media Queries */
@media (max-width: 992px) {
  .bento-card, .bento-card.featured {
    grid-column: span 6;
  }
}

@media (max-width: 768px) {
  .bento-card, .bento-card.featured {
    grid-column: span 12;
  }
  
  .hero-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .site-header {
    height: auto;
    padding: 1rem 0;
  }

  .header-inner {
    flex-direction: column;
    gap: 1rem;
  }
}