/* =====================================================
   CHATOPS.JS DOCUMENTATION
   NASA 60s Mission Control Theme
   ===================================================== */

/* --- CSS Custom Properties: Dark (Space) Mode --- */
:root {
  --bg:            #07071a;
  --bg-surface:    #0c0c22;
  --bg-panel:      #10103a;
  --bg-code:       #04040f;
  --border:        rgba(100, 120, 255, 0.12);
  --border-accent: rgba(232, 100, 20, 0.4);

  --text:          #dde0f5;
  --text-code:     #dde0f5;
  --text-muted:    #7878a0;
  --text-faint:    #40405a;

  --accent:        #e86820;   /* rocket exhaust orange */
  --accent-hover:  #ff8c40;
  --accent-blue:   #2a6ecc;   /* NASA blue */
  --accent-green:  #0ec98b;   /* mission success green */
  --accent-amber:  #f5b700;   /* warning amber */
  --accent-red:    #e83030;

  --font-mono: ui-monospace, 'Cascadia Code', 'Consolas', 'Courier New', monospace;
  --font-sans: system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;

  --nav-width:    280px;
  --header-h:      60px;
  --radius:         4px;
  --radius-lg:      8px;

  --shadow:        0 4px 24px rgba(0, 0, 40, 0.6);
  --glow-accent:   0 0 20px rgba(232, 104, 32, 0.25);
  --glow-blue:     0 0 20px rgba(42, 110, 204, 0.25);
}

/* --- Light Mode (Mission Report / Blueprint) --- */
@media (prefers-color-scheme: light) {
  :root {
    --bg:            #f0e9d6;
    --bg-surface:    #e8dfc8;
    --bg-panel:      #ddd4ba;
    --bg-code:       #1a1a2e;
    --border:        rgba(20, 20, 60, 0.15);
    --border-accent: rgba(180, 80, 10, 0.4);

    --text:          #100f20;
    --text-code:     #dde0f5;
    --text-muted:    #50507a;
    --text-faint:    #a0a0c0;

    --accent:        #c45510;
    --accent-hover:  #e06820;
    --accent-blue:   #0a3a8c;
    --accent-green:  #0a7a50;
    --accent-amber:  #b08000;
    --accent-red:    #b02020;

    --shadow:        0 4px 24px rgba(0, 0, 20, 0.15);
    --glow-accent:   0 0 16px rgba(196, 85, 16, 0.15);
    --glow-blue:     0 0 16px rgba(10, 58, 140, 0.15);
  }
}

/* ===================================================
   RESET & BASE
   =================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--border-accent) var(--bg);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Starfield background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 10% 15%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 45%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 50% 8%,  rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 70% 60%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 80% 25%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 92% 78%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 18% 70%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 45% 85%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 62% 38%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 88% 50%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(2px 2px at 5%  90%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(2px 2px at 75% 12%, rgba(255,255,255,0.3) 0%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

@media (prefers-color-scheme: light) {
  body::before { display: none; }
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

img { max-width: 100%; }

/* ===================================================
   LAYOUT
   =================================================== */
.layout {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* --- Sidebar --- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--nav-width);
  height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-logo .mission-patch {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.sidebar-logo .patch-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent) 0%, #b04000 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--glow-accent);
  flex-shrink: 0;
}

.sidebar-logo .patch-text strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.sidebar-logo .patch-text span {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.mission-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 8px;
}

.mission-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* --- Navigation --- */
.sidebar-nav {
  flex: 1;
  padding: 16px 0;
}

.nav-section {
  margin-bottom: 8px;
}

.nav-section-title {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-faint);
  padding: 8px 20px 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 20px;
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color 0.15s, background 0.15s;
  border-left: 2px solid transparent;
}

.nav-link:hover {
  color: var(--text);
  background: rgba(255,255,255,0.03);
  text-decoration: none;
}

.nav-link.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(232, 104, 32, 0.07);
  font-weight: 500;
}

.nav-link .nav-icon {
  font-size: 0.9rem;
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-faint);
}

.sidebar-footer a { color: var(--text-faint); }
.sidebar-footer a:hover { color: var(--accent); }

/* --- Main content --- */
.main {
  margin-left: var(--nav-width);
  flex: 1;
  min-width: 0;
}

.content {
  max-width: 860px;
  padding: 48px 56px;
  margin: 0 auto;
}

/* ===================================================
   HEADER (top of content area)
   =================================================== */
.page-header {
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

.page-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 12px;
}

.page-title {
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 16px;
}

.page-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.7;
}

/* ===================================================
   TYPOGRAPHY
   =================================================== */
h1, h2, h3, h4, h5 {
  font-family: var(--font-mono);
  color: var(--text);
  line-height: 1.3;
}

h2 {
  font-size: 1.5rem;
  margin: 48px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

h2::before {
  content: '// ';
  color: var(--text-faint);
}

h3 {
  font-size: 1.1rem;
  margin: 32px 0 12px;
  color: var(--accent);
}

h4 {
  font-size: 0.9rem;
  margin: 24px 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

p {
  margin-bottom: 16px;
  color: var(--text-muted);
}

p strong {
  color: var(--text);
  font-weight: 600;
}

ul, ol {
  margin: 0 0 16px 20px;
  color: var(--text-muted);
}

li { margin-bottom: 6px; }

li strong { color: var(--text); }

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

/* ===================================================
   CODE
   =================================================== */
code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-panel);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 24px;
  overflow-x: auto;
  margin: 0 0 24px;
  position: relative;
  box-shadow: var(--shadow);
}

pre::before {
  content: attr(data-lang);
  position: absolute;
  top: 8px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-faint);
}

pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-code);
  font-size: 0.875rem;
  line-height: 1.7;
}

/* Copy button */
.code-block {
  position: relative;
  margin-bottom: 24px;
}

.code-block pre { margin-bottom: 0; }

.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s;
}

.copy-btn:hover {
  color: var(--accent);
  border-color: var(--border-accent);
}

.copy-btn.copied {
  color: var(--accent-green);
  border-color: var(--accent-green);
}

/* ===================================================
   CALLOUTS
   =================================================== */
.callout {
  display: flex;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  margin: 0 0 24px;
  background: var(--bg-surface);
}

.callout-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  padding-top: 2px;
}

.callout-body { flex: 1; min-width: 0; }

.callout-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 6px;
}

.callout-body p {
  margin: 0;
  font-size: 0.9rem;
}

.callout.info    { border-left: 3px solid var(--accent-blue);  }
.callout.info    .callout-title { color: var(--accent-blue); }
.callout.tip     { border-left: 3px solid var(--accent-green); }
.callout.tip     .callout-title { color: var(--accent-green); }
.callout.warning { border-left: 3px solid var(--accent-amber); }
.callout.warning .callout-title { color: var(--accent-amber); }
.callout.danger  { border-left: 3px solid var(--accent-red); }
.callout.danger  .callout-title { color: var(--accent-red); }

/* ===================================================
   TABLES
   =================================================== */
.table-wrap { overflow-x: auto; margin-bottom: 24px; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead th {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-faint);
  padding: 10px 16px;
  text-align: left;
  border-bottom: 2px solid var(--border);
  background: var(--bg-surface);
}

tbody td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  vertical-align: top;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: rgba(255,255,255,0.02); }

tbody td code { font-size: 0.82em; }

/* ===================================================
   HERO (home page only)
   =================================================== */
.hero {
  padding: 64px 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.rocket-art {
  font-size: 4rem;
  line-height: 1;
  margin-bottom: 16px;
  display: block;
  filter: drop-shadow(0 0 20px rgba(232, 104, 32, 0.5));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero-title {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--text);
}

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

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===================================================
   BUTTONS
   =================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  text-decoration: none;
  box-shadow: var(--glow-accent);
}

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}

.btn-outline:hover {
  color: var(--text);
  border-color: var(--border-accent);
  text-decoration: none;
}

/* ===================================================
   FEATURE GRID (home page)
   =================================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 0 0 48px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.feature-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--glow-accent);
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
  display: block;
}

.feature-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text);
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===================================================
   BADGES
   =================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid;
}

.badge-orange { color: var(--accent);       border-color: var(--accent);       background: rgba(232,104,32,0.1); }
.badge-blue   { color: var(--accent-blue);  border-color: var(--accent-blue);  background: rgba(42,110,204,0.1); }
.badge-green  { color: var(--accent-green); border-color: var(--accent-green); background: rgba(14,201,139,0.1); }
.badge-amber  { color: var(--accent-amber); border-color: var(--accent-amber); background: rgba(245,183,0,0.1);  }

/* ===================================================
   SECTION DIVIDERS (mission aesthetic)
   =================================================== */
.mission-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-faint);
  margin: 48px 0 24px;
}

.mission-label::before,
.mission-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ===================================================
   API SIGNATURE BLOCKS
   =================================================== */
.api-sig {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-blue);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text);
  overflow-x: auto;
}

.api-sig .keyword  { color: var(--accent-blue); }
.api-sig .name     { color: var(--accent); font-weight: 700; }
.api-sig .param    { color: var(--text-muted); }
.api-sig .type     { color: var(--accent-green); }
.api-sig .optional { color: var(--text-faint); }

/* ===================================================
   STEP LIST (getting-started)
   =================================================== */
.steps { counter-reset: step; margin: 0 0 32px; }

.step {
  display: flex;
  gap: 20px;
  margin-bottom: 32px;
}

.step-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-accent);
  margin-top: 4px;
}

.step-body { flex: 1; min-width: 0; }

.step-title {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

/* ===================================================
   MOBILE NAV TOGGLE
   =================================================== */
.nav-toggle {
  display: none;
  position: fixed;
  top: 14px;
  right: 16px;
  z-index: 200;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1.1rem;
  align-items: center;
  justify-content: center;
}

/* ===================================================
   RESPONSIVE
   =================================================== */
@media (max-width: 900px) {
  .content { padding: 32px 28px; }
  .hero { padding: 48px 28px 36px; }
  .hero-title { font-size: 2rem; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow);
  }
  .main { margin-left: 0; }
  .content { padding: 24px 20px; }
  .hero { padding: 40px 20px 28px; }
  .hero-title { font-size: 1.6rem; }
  .page-title { font-size: 1.8rem; }
  .feature-grid { grid-template-columns: 1fr; }
}

/* --- Page-level table-of-contents nav --- */
.toc-nav {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 40px;
}
.toc-nav-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-faint);
  margin-bottom: 12px;
}
.toc-nav-grid {
  display: grid;
  gap: 6px;
  font-size: 0.875rem;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}
.toc-nav-grid--wide {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
}

/* --- Callout pre block --- */
.callout-pre {
  margin: 8px 0 0;
}