/* CoLaunch Design System — Professional Dark Glassmorphism */

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

:root {
  /* Base */
  --bg: #050510;
  --bg-secondary: #0a0a1a;
  --surface: rgba(15, 15, 30, 0.7);
  --surface-hover: rgba(20, 20, 40, 0.8);
  --surface-active: rgba(25, 25, 50, 0.9);

  /* Borders */
  --border: rgba(124, 58, 237, 0.12);
  --border-hover: rgba(124, 58, 237, 0.25);
  --border-active: rgba(124, 58, 237, 0.4);

  /* Text */
  --text: #f0f0f5;
  --text-secondary: #a0a0b5;
  --text-dim: #606075;

  /* Accent — purple/violet */
  --accent: #7c3aed;
  --accent-light: #8b5cf6;
  --accent-glow: rgba(124, 58, 237, 0.15);
  --accent-text: #c4b5fd;

  /* Status */
  --green: #4ade80;
  --green-dim: rgba(74, 222, 128, 0.12);
  --blue: #60a5fa;
  --blue-dim: rgba(96, 165, 250, 0.12);
  --yellow: #fbbf24;
  --yellow-dim: rgba(251, 191, 36, 0.12);
  --red: #f87171;
  --red-dim: rgba(248, 113, 113, 0.12);

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

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Effects */
  --glass-bg: rgba(15, 15, 30, 0.6);
  --glass-border: rgba(124, 58, 237, 0.1);
  --glass-blur: 20px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ═══════ Background Effects ═══════ */
.bg-effects {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-effects::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124, 58, 237, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.bg-effects::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(circle at 30% 20%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
  animation: bg-drift 30s ease-in-out infinite alternate;
}
@keyframes bg-drift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-5%, -3%); }
}

/* ═══════ Layout ═══════ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ═══════ Typography ═══════ */
h1, h2, h3, h4 { font-weight: 600; line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: 2.5rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; }

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

.mono { font-family: var(--font-mono); }
.text-secondary { color: var(--text-secondary); }
.text-dim { color: var(--text-dim); }
.text-accent { color: var(--accent-text); }
.text-green { color: var(--green); }

a { color: var(--accent-text); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-light); }

/* ═══════ Navigation ═══════ */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 5, 16, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0;
}
nav .nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
nav .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
}
nav .logo img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}
nav .nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
nav .nav-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  text-decoration: none;
}
nav .nav-links a:hover,
nav .nav-links a.active {
  color: var(--text);
  background: var(--accent-glow);
}

/* Mobile hamburger */
.nav-toggle { display: none; }
.nav-toggle-label {
  display: none;
  cursor: pointer;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
}
.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all 0.3s;
  position: relative;
}
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  content: '';
  position: absolute;
  width: 20px;
}
.nav-toggle-label span::before { top: -6px; }
.nav-toggle-label span::after { top: 6px; }
.nav-toggle:checked + .nav-toggle-label span { background: transparent; }
.nav-toggle:checked + .nav-toggle-label span::before { top: 0; transform: rotate(45deg); }
.nav-toggle:checked + .nav-toggle-label span::after { top: 0; transform: rotate(-45deg); }

@media (max-width: 768px) {
  .nav-toggle-label { display: flex; }
  nav .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(5, 5, 16, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 12px;
    gap: 4px;
  }
  .nav-toggle:checked ~ .nav-links { display: flex; }
  nav .nav-links a { padding: 10px 16px; width: 100%; }
}

/* ═══════ Glass Card ═══════ */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm), var(--shadow-glow);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.glass-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md), 0 0 40px rgba(124, 58, 237, 0.15);
  transform: translateY(-2px);
}
.glass-card.no-hover:hover {
  transform: none;
  border-color: var(--glass-border);
  box-shadow: var(--shadow-sm), var(--shadow-glow);
}

/* ═══════ Stat Card ═══════ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}
.stat-card {
  padding: 20px;
  text-align: center;
}
.stat-card .stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text);
  line-height: 1.2;
}
.stat-card .stat-label {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ═══════ Buttons ═══════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.25s;
  text-decoration: none;
  font-family: var(--font-sans);
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-light);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.3);
  color: #fff;
}
.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  color: var(--text);
  border-color: var(--border-hover);
  background: var(--accent-glow);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 6px 12px;
}
.btn-ghost:hover {
  color: var(--text);
  background: var(--accent-glow);
}
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

/* ═══════ Badges ═══════ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.badge-accent {
  background: var(--accent-glow);
  color: var(--accent-text);
  border: 1px solid rgba(124, 58, 237, 0.2);
}
.badge-green {
  background: var(--green-dim);
  color: var(--green);
  border: 1px solid rgba(74, 222, 128, 0.2);
}
.badge-blue {
  background: var(--blue-dim);
  color: var(--blue);
  border: 1px solid rgba(96, 165, 250, 0.2);
}
.badge-yellow {
  background: var(--yellow-dim);
  color: var(--yellow);
  border: 1px solid rgba(251, 191, 36, 0.2);
}
.badge-red {
  background: var(--red-dim);
  color: var(--red);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

/* ═══════ Code Blocks ═══════ */
.code-block {
  background: rgba(10, 10, 25, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-secondary);
  position: relative;
}
.code-block .copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-sans);
}
.code-block .copy-btn:hover {
  color: var(--text);
  border-color: var(--border-hover);
}
.code-block .hl { color: var(--accent-text); }
.code-block .str { color: var(--green); }
.code-block .num { color: var(--yellow); }
.code-block .kw { color: var(--blue); }
.code-block .cm { color: var(--text-dim); }

/* ═══════ Tables ═══════ */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
th, td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th {
  color: var(--text-dim);
  font-weight: 500;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
tr:hover td { background: rgba(124, 58, 237, 0.03); }

/* ═══════ Forms ═══════ */
input, select, textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 10px 14px;
  font-size: 0.88rem;
  font-family: var(--font-sans);
  transition: all 0.2s;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}
input::placeholder { color: var(--text-dim); }

/* ═══════ Hero ═══════ */
.hero {
  text-align: center;
  padding: 80px 0 48px;
}
.hero .hero-logo {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  animation: float 6s ease-in-out infinite;
}
.hero h1 {
  margin-bottom: 16px;
}
.hero p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 540px;
  margin: 0 auto 32px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-hero {
  text-align: center;
  padding: 48px 0 32px;
}
.page-hero h1 { font-size: 2rem; margin-bottom: 10px; }
.page-hero p { color: var(--text-secondary); max-width: 540px; margin: 0 auto; }

/* ═══════ Sections ═══════ */
.section {
  padding: 48px 0;
}
.section-title {
  font-size: 1.35rem;
  margin-bottom: 24px;
  font-weight: 600;
}
.section-subtitle {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 0.95rem;
}

/* ═══════ Footer ═══════ */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  margin-top: 64px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-left {
  color: var(--text-dim);
  font-size: 0.8rem;
}
.footer-links {
  display: flex;
  gap: 16px;
}
.footer-links a {
  color: var(--text-dim);
  font-size: 0.8rem;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--text); }

/* ═══════ Animations ═══════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(124, 58, 237, 0.1); }
  50% { box-shadow: 0 0 40px rgba(124, 58, 237, 0.25); }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.fade-up {
  opacity: 0;
  animation: fadeUp 0.6s ease forwards;
}
.fade-up-1 { animation-delay: 0.1s; }
.fade-up-2 { animation-delay: 0.2s; }
.fade-up-3 { animation-delay: 0.3s; }
.fade-up-4 { animation-delay: 0.4s; }
.fade-up-5 { animation-delay: 0.5s; }

/* Skeleton loader */
.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, rgba(124, 58, 237, 0.08) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

/* ═══════ Tab Bar ═══════ */
.tab-bar {
  display: inline-flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 4px;
  gap: 2px;
  margin-bottom: 32px;
}
.tab-bar button {
  padding: 8px 18px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.25s;
  font-family: var(--font-sans);
}
.tab-bar button.active,
.tab-bar button:hover {
  color: var(--text);
  background: var(--accent-glow);
}
.tab-bar button.active {
  background: var(--accent);
  color: #fff;
}

/* ═══════ Grid Layouts ═══════ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  h1 { font-size: 1.8rem; }
  .hero { padding: 48px 0 32px; }
  .hero .hero-logo { width: 56px; height: 56px; }
  .section { padding: 32px 0; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* ═══════ Scrollbar ═══════ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* ═══════ Reduced Motion ═══════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ═══════ Method Badges (API page) ═══════ */
.method-get { background: var(--green-dim); color: var(--green); }
.method-post { background: var(--blue-dim); color: var(--blue); }
.method-put { background: var(--yellow-dim); color: var(--yellow); }
.method-delete { background: var(--red-dim); color: var(--red); }

/* ═══════ Progress Bar ═══════ */
.progress-bar {
  height: 6px;
  background: var(--surface);
  border-radius: 3px;
  overflow: hidden;
}
.progress-bar .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--green));
  border-radius: 3px;
  transition: width 0.5s ease;
}

/* ═══════ Utility ═══════ */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.p-16 { padding: 16px; }
.p-20 { padding: 20px; }
.p-24 { padding: 24px; }
.text-center { text-align: center; }
.w-full { width: 100%; }
.hidden { display: none; }