/* AIPLUX Official Brand Design System (https://aiplux.com/zh) */
:root {
  --color-brand-black: #070606;
  --color-brand-dark: #151516;
  --color-brand-surface: #1c1c1e;
  --color-brand-accent: #fc6f60;
  --color-brand-accent-hover: #ff8a7d;
  --color-brand-gold: #f59e0b;
  --color-brand-text: #cdced4;
  --color-brand-muted: #8b8c94;
  --border-subtle: rgba(255, 255, 255, 0.10);
  --border-faint: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(252, 111, 96, 0.50);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background-color: var(--color-brand-black);
  color: var(--color-brand-text);
}

body {
  background-color: var(--color-brand-black);
  color: var(--color-brand-text);
  font-family: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}

.mono {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Top Navigation (aiplux.com h-20 header) */
.aiplux-nav {
  height: 80px;
  background: rgba(7, 6, 6, 0.90);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-faint);
}

/* Section Spacing & Eyebrow */
.aiplux-section {
  padding: 72px 0;
  border-bottom: 1px solid var(--border-faint);
}

.aiplux-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.aiplux-eyebrow::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 9999px;
  background-color: var(--color-brand-accent);
}

.aiplux-h1 {
  font-size: clamp(32px, 4.2vw, 46px);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.22;
  letter-spacing: -0.015em;
}

.aiplux-h2 {
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.28;
  letter-spacing: -0.01em;
}

/* Flat Obsidian Cards (Zero Neon / Zero Gradient) */
.aiplux-card {
  background-color: var(--color-brand-dark);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.aiplux-card:hover {
  border-color: var(--border-accent);
}

.aiplux-card-static {
  background-color: var(--color-brand-dark);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
}

/* AIPLUX Buttons */
.btn-aiplux-white {
  background: rgba(255, 255, 255, 0.92);
  color: #070606;
  font-weight: 600;
  font-size: 14px;
  border-radius: 8px;
  padding: 10px 24px;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, transform 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
}

.btn-aiplux-white:hover {
  background: #ffffff;
}

.btn-aiplux-coral {
  background: var(--color-brand-accent);
  color: #070606;
  font-weight: 600;
  font-size: 14px;
  border-radius: 8px;
  padding: 10px 24px;
  border: 1px solid transparent;
  transition: background-color 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
}

.btn-aiplux-coral:hover {
  background: var(--color-brand-accent-hover);
}

.btn-aiplux-outline {
  background: transparent;
  color: #ffffff;
  font-weight: 500;
  font-size: 14px;
  border-radius: 8px;
  padding: 10px 22px;
  border: 1px solid rgba(255, 255, 255, 0.20);
  transition: border-color 0.15s ease, color 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
}

.btn-aiplux-outline:hover {
  border-color: var(--color-brand-accent);
  color: var(--color-brand-accent);
}

/* Signature 6px Coral Dot Bullet */
.coral-dot {
  width: 6px;
  height: 6px;
  border-radius: 9999px;
  background-color: var(--color-brand-accent);
  flex-shrink: 0;
  margin-top: 8px;
}

.white-dot {
  width: 6px;
  height: 6px;
  border-radius: 9999px;
  background-color: #ffffff;
  flex-shrink: 0;
  margin-top: 8px;
}

/* Badges */
.badge-coral {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-brand-accent);
  background: rgba(252, 111, 96, 0.12);
  border: 1px solid rgba(252, 111, 96, 0.38);
  border-radius: 6px;
  padding: 2px 8px;
  display: inline-flex;
  align-items: center;
}

.badge-white {
  font-size: 11px;
  font-weight: 600;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 6px;
  padding: 2px 8px;
  display: inline-flex;
  align-items: center;
}

/* Monochrome Jurisdiction Pill */
.jur-pill {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-brand-text);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  padding: 4px 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.jur-pill:hover {
  border-color: rgba(252, 111, 96, 0.45);
  color: #ffffff;
}

.jur-pill.active {
  background-color: #1c1b1b;
  border-color: var(--color-brand-accent);
  color: #ffffff;
}

/* Domain Selector Button (5x2 grid or horizontal bar) */
.domain-tab-btn {
  background-color: var(--color-brand-dark);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 12px 14px;
  text-align: left;
  transition: all 0.15s ease;
  cursor: pointer;
  color: var(--color-brand-text);
}

.domain-tab-btn:hover {
  border-color: rgba(252, 111, 96, 0.45);
  color: #ffffff;
}

.domain-tab-btn.active {
  background-color: #1c1b1b;
  border-color: var(--color-brand-accent);
  color: #ffffff;
}

/* Playground Stage Tab Button */
.stage-tab-btn {
  background-color: transparent;
  border-bottom: 2px solid transparent;
  padding: 12px 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-brand-muted);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.stage-tab-btn:hover {
  color: #ffffff;
}

.stage-tab-btn.active {
  color: #ffffff;
  border-bottom-color: var(--color-brand-accent);
}

/* Progress Bars */
.bar-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 9999px;
  overflow: hidden;
}

.bar-fill-coral {
  height: 100%;
  background-color: var(--color-brand-accent);
  border-radius: 9999px;
  transition: width 0.35s ease;
}

.bar-fill-white {
  height: 100%;
  background-color: #ffffff;
  border-radius: 9999px;
  transition: width 0.35s ease;
}

.bar-fill-muted {
  height: 100%;
  background-color: #52525b;
  border-radius: 9999px;
  transition: width 0.35s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: #070606;
}
::-webkit-scrollbar-thumb {
  background: #27272a;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #3f3f46;
}