/* ==========================================================================
   CHIHIRO [IA] — Ultimate Cyberpunk / Danganronpa Design System
   ========================================================================== */

:root {
  --bg-primary: #0a0e14;
  --bg-secondary: #121820;
  --bg-card: rgba(18, 24, 32, 0.75);
  --bg-card-hover: rgba(26, 36, 48, 0.85);
  --bg-glass: rgba(18, 24, 32, 0.6);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(0, 255, 136, 0.35);

  --accent-green: #00ff88;
  --accent-green-dark: #00b359;
  --accent-green-glow: rgba(0, 255, 136, 0.25);
  --accent-pink: #ff3377;
  --accent-gold: #ffcc00;
  --accent-blue: #3b82f6;

  --text-main: #f0f6fc;
  --text-muted: #8b949e;
  --text-dim: #6e7681;

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

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.18s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

/* Background Cyber Grid & Glow */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 15% 20%, rgba(0, 255, 136, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 85% 75%, rgba(255, 51, 119, 0.05) 0%, transparent 45%),
    linear-gradient(rgba(10, 14, 20, 0.95), rgba(10, 14, 20, 0.98)),
    repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(255, 255, 255, 0.015) 39px, rgba(255, 255, 255, 0.015) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(255, 255, 255, 0.015) 39px, rgba(255, 255, 255, 0.015) 40px);
  pointer-events: none;
  z-index: -1;
}

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.15rem;
}

.brand-avatar {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  border: 2px solid var(--accent-green);
  box-shadow: 0 0 12px var(--accent-green-glow);
  image-rendering: pixelated;
}

.brand-title {
  display: flex;
  flex-direction: column;
}

.brand-name {
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-green);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-green);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-btn:hover {
  background: rgba(0, 255, 136, 0.1);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-normal);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
  color: #05140b;
  box-shadow: 0 4px 20px var(--accent-green-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 26px rgba(0, 255, 136, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-subtle);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-discord {
  background: #5865F2;
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(88, 101, 242, 0.3);
}

.btn-discord:hover {
  background: #4752c4;
  transform: translateY(-2px);
  box-shadow: 0 6px 26px rgba(88, 101, 242, 0.45);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  padding: 90px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 48px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(0, 255, 136, 0.08);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-green);
  margin-bottom: 24px;
}

.hero-tag .status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Interactive Sprite Card */
.hero-sprite-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  text-align: center;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  transition: var(--transition-normal);
}

.hero-sprite-card:hover {
  border-color: var(--border-accent);
  box-shadow: 0 24px 50px rgba(0, 255, 136, 0.15);
}

.sprite-container {
  width: 140px;
  height: 140px;
  margin: 0 auto 20px;
  position: relative;
  cursor: pointer;
}

.sprite-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.5));
  transition: transform var(--transition-fast);
}

.sprite-container:hover .sprite-img {
  transform: scale(1.1) rotate(2deg);
}

.speech-bubble {
  position: relative;
  background: rgba(0, 255, 136, 0.08);
  border: 1px solid var(--border-accent);
  color: var(--text-main);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  margin-top: 10px;
  transition: var(--transition-normal);
}

.speech-bubble::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid var(--accent-green);
}

.sprite-hint {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 12px;
  font-family: var(--font-mono);
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  display: inline-block;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-main);
}

.feature-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Commands Section
   ========================================================================== */
.commands-controls {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 30px;
}

.search-wrapper {
  position: relative;
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
}

.search-input {
  width: 100%;
  padding: 14px 20px 14px 46px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-main);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.search-input:focus {
  border-color: var(--accent-green);
  box-shadow: 0 0 16px var(--accent-green-glow);
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.tab-btn {
  padding: 8px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
}

.tab-btn.active {
  background: var(--accent-green);
  border-color: var(--accent-green);
  color: #05140b;
  font-weight: 600;
}

.commands-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.command-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: var(--transition-fast);
}

.command-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: var(--bg-card-hover);
}

.cmd-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.cmd-name {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent-green);
  background: rgba(0, 255, 136, 0.08);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 255, 136, 0.2);
}

.cmd-badge {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.cmd-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   Legal Documents Viewer (ToS / Privacy / Docs)
   ========================================================================== */
.docs-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.docs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-secondary);
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.docs-tabs {
  display: flex;
  gap: 10px;
}

.doc-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.doc-tab-btn:hover {
  color: var(--text-main);
}

.doc-tab-btn.active {
  background: rgba(0, 255, 136, 0.12);
  color: var(--accent-green);
}

.docs-content {
  padding: 40px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: #c9d1d9;
  max-height: 700px;
  overflow-y: auto;
}

.docs-content h1, .docs-content h2, .docs-content h3 {
  color: #ffffff;
  margin: 28px 0 14px;
  line-height: 1.3;
}

.docs-content h1 {
  font-size: 1.8rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 10px;
  margin-top: 0;
}

.docs-content h2 {
  font-size: 1.35rem;
}

.docs-content p {
  margin-bottom: 16px;
}

.docs-content ul, .docs-content ol {
  margin-bottom: 18px;
  padding-left: 24px;
}

.docs-content li {
  margin-bottom: 8px;
}

.docs-content a {
  color: var(--accent-green);
  text-decoration: underline;
}

.docs-content blockquote {
  border-left: 3px solid var(--accent-green);
  padding: 12px 20px;
  background: rgba(0, 255, 136, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 20px 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: 60px 0 30px;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-desc {
  max-width: 320px;
  line-height: 1.6;
}

.footer-col-title {
  color: var(--text-main);
  font-weight: 600;
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
}

.disclaimer-box {
  background: rgba(255, 51, 119, 0.05);
  border: 1px solid rgba(255, 51, 119, 0.2);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 30px;
  font-size: 0.85rem;
  color: #ff99bb;
  line-height: 1.5;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-links {
    display: none;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 2.4rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .docs-header {
    flex-direction: column;
    gap: 12px;
  }
}


.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 13px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-btn:hover {
  color: var(--text-main);
}

.lang-btn.active {
  background: var(--accent-green);
  color: #05140b;
  box-shadow: 0 0 12px var(--accent-green-glow);
  font-weight: 700;
}


/* FontAwesome Icon Adjustments */
.brand-avatar {
  object-fit: cover;
  image-rendering: auto !important;
}

.feature-icon i {
  font-size: 1.6rem;
  color: var(--accent-green);
  transition: transform var(--transition-normal);
}

.feature-card:hover .feature-icon i {
  transform: scale(1.15);
}

.tab-btn i, .doc-tab-btn i {
  margin-right: 6px;
  font-size: 0.88rem;
}

.nav-link i {
  margin-right: 6px;
  font-size: 0.85rem;
  opacity: 0.8;
}

.footer-links i {
  margin-right: 8px;
  width: 16px;
  text-align: center;
  color: var(--accent-green);
  opacity: 0.85;
}

.btn i {
  font-size: 0.95rem;
}

.sprite-hint i {
  color: var(--accent-green);
  margin-right: 4px;
}