/* OpenClaw Companion Guide — Global Styles */
/* Light/Dark mode with system default */

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/* DARK MODE VARIABLES (default)   */
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:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --surface-alt: #161616;
  --surface-hover: #1e1e1e;
  --border: #1e1e1e;
  --border-mid: #2a2a2a;
  --text: #e8e8e8;
  --text-secondary: #888888;
  --text-tertiary: #555555;
  --accent: #c4a35a;
  --accent-dim: rgba(196,163,90,0.08);
  --accent-glow: rgba(196,163,90,0.18);
  --success: #4ade80;
  --success-dim: rgba(74,222,128,0.07);
  --danger: #ff4444;
  --danger-dim: rgba(255,68,68,0.07);
  --info: #87ceeb;
  --info-dim: rgba(135,206,235,0.07);
  --shadow: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --radius: 8px;
  --radius-sm: 4px;
  --radius-lg: 12px;
  --transition: 0.18s ease;
}

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/* LIGHT MODE VARIABLES            */
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[data-theme="light"] {
  --bg: #f5f4f0;
  --surface: #ffffff;
  --surface-alt: #f0ede6;
  --surface-hover: #e8e4dc;
  --border: #e0dbd0;
  --border-mid: #ccc8be;
  --text: #1a1a1a;
  --text-secondary: #555555;
  --text-tertiary: #888888;
  --accent: #9a7a38;
  --accent-dim: rgba(154,122,56,0.08);
  --accent-glow: rgba(154,122,56,0.15);
  --success: #16a34a;
  --success-dim: rgba(22,163,74,0.08);
  --danger: #dc2626;
  --danger-dim: rgba(220,38,38,0.08);
  --info: #0369a1;
  --info-dim: rgba(3,105,161,0.08);
  --shadow: 0 4px 24px rgba(0,0,0,0.1);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
}

/* System preference (auto) — applies when no data-theme set */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f5f4f0;
    --surface: #ffffff;
    --surface-alt: #f0ede6;
    --surface-hover: #e8e4dc;
    --border: #e0dbd0;
    --border-mid: #ccc8be;
    --text: #1a1a1a;
    --text-secondary: #555555;
    --text-tertiary: #888888;
    --accent: #9a7a38;
    --accent-dim: rgba(154,122,56,0.08);
    --accent-glow: rgba(154,122,56,0.15);
    --success: #16a34a;
    --success-dim: rgba(22,163,74,0.08);
    --danger: #dc2626;
    --danger-dim: rgba(220,38,38,0.08);
    --info: #0369a1;
    --info-dim: rgba(3,105,161,0.08);
    --shadow: 0 4px 24px rgba(0,0,0,0.1);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  }
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
}

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

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/* TOP BAR                         */
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.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 52px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 200;
  box-shadow: var(--shadow-sm);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topbar-logo {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
}
.menu-toggle:hover { color: var(--accent); border-color: var(--accent); }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Theme toggle buttons */
.theme-buttons {
  display: flex;
  gap: 0.25rem;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px;
}

.theme-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
}

.theme-btn:hover { color: var(--text); background: var(--surface-hover); }

.theme-btn.active {
  background: var(--surface);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .theme-btn.active,
.theme-btn[data-mode="dark"].active { color: var(--accent); }

/* ════════════════════════════════ */
/* LAYOUT                          */
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.container {
  display: flex;
  min-height: calc(100vh - 52px);
  margin-top: 52px;
}

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/* SIDEBAR                         */
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.sidebar {
  position: fixed;
  top: 52px;
  left: 0;
  width: 268px;
  height: calc(100vh - 52px);
  overflow-y: auto;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1.5rem 1rem;
  z-index: 100;
  flex-shrink: 0;
  transition: background var(--transition), border-color var(--transition), left 0.25s ease;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-mid); border-radius: 2px; }

.sidebar-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1.75rem;
  padding-left: 0.5rem;
  letter-spacing: 0.03em;
}

.nav-section { margin-bottom: 2rem; }

.nav-section-title {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--text-tertiary);
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 0.5rem;
  padding-left: 0.5rem;
}

.nav-list { list-style: none; }
.nav-item { margin-bottom: 2px; }

.nav-link {
  display: block;
  padding: 0.55rem 0.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  transition: all var(--transition);
  border-left: 2px solid transparent;
}

.nav-link:hover {
  background: var(--accent-dim);
  color: var(--accent);
  text-decoration: none;
  border-left-color: var(--accent-dim);
}

.nav-link.active {
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 600;
  border-left-color: var(--accent);
}

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/* MAIN CONTENT                    */
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.main {
  margin-left: 268px;   /* matches fixed sidebar width */
  padding: 3rem 4rem 4rem;
  max-width: 960px;
  width: 100%;
  min-width: 0;
  flex: 1;
}

.page-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 2rem;
}

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/* TL;DR BOX                       */
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.tldr {
  background: var(--accent-dim);
  border-left: 3px solid var(--accent);
  padding: 1.1rem 1.4rem;
  margin-bottom: 2.5rem;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  line-height: 1.6;
}
.tldr strong { color: var(--accent); }

/* ════════════════════════════════ */
/* HEADINGS                        */
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h2 {
  font-size: 1.45rem;
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 0.85rem;
  color: var(--text);
  letter-spacing: -0.01em;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
h2:first-of-type { margin-top: 0; }

h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 1.75rem;
  margin-bottom: 0.6rem;
  color: var(--text);
}

p { margin-bottom: 1rem; color: var(--text); font-size: 15px; line-height: 1.7; }

ul, ol { margin-left: 1.5rem; margin-bottom: 1rem; }
li { margin-bottom: 0.4rem; color: var(--text); font-size: 15px; line-height: 1.6; }

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/* CODE BLOCKS                     */
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.code-block {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 1.4rem 0;
  overflow: hidden;
  position: relative;
}

.code-block pre {
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  margin: 0;
}

.code-block code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Monaco', 'Menlo', 'Courier New', monospace;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text-secondary);
  white-space: pre;
}

.code-copy-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-tertiary);
  padding: 0.3rem 0.7rem;
  font-size: 11.5px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}
.code-copy-btn:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.code-copy-btn.copied { background: var(--success); color: #000; border-color: var(--success); }

/* Inline code */
code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Menlo', monospace;
  font-size: 0.85em;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  padding: 0.1em 0.4em;
  border-radius: 3px;
  color: var(--accent);
}

.code-block code { background: none; border: none; padding: 0; font-size: 12.5px; color: var(--text-secondary); }

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/* ALERT BOXES                     */
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.alert {
  border-left: 3px solid;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1.6;
}
.alert strong { display: block; margin-bottom: 0.3rem; }
.alert-warning { background: var(--danger-dim); border-color: var(--danger); }
.alert-warning strong { color: var(--danger); }
.alert-success { background: var(--success-dim); border-color: var(--success); }
.alert-success strong { color: var(--success); }
.alert-info { background: var(--info-dim); border-color: var(--info); }
.alert-info strong { color: var(--info); }

/* ════════════════════════════════ */
/* TABLES                          */
/* ════════════════════════════════ */
table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 14px; }
th {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--accent);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
td { border: 1px solid var(--border); padding: 0.75rem 1rem; color: var(--text); }
tr:hover td { background: var(--accent-dim); }

/* ════════════════════════════════ */
/* PAGE NAVIGATION                 */
/* ════════════════════════════════ */
.page-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  gap: 1rem;
}

.nav-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius);
  font-size: 14px;
  transition: all var(--transition);
}
.nav-button:hover { background: var(--accent-dim); color: var(--accent); border-color: var(--accent); text-decoration: none; }
.nav-button.disabled { opacity: 0.35; pointer-events: none; }

/* ════════════════════════════════ */
/* ARCHITECTURE SVG                */
/* ════════════════════════════════ */
.architecture-container {
  margin: 2rem 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}
.architecture-container img,
.architecture-container svg {
  width: 100%;
  height: auto;
  display: block;
}

/* ════════════════════════════════ */
/* FEEDBACK FORM                   */
/* ════════════════════════════════ */
.feedback-section {
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.feedback-section h2 {
  font-size: 1.2rem;
  border: none;
  padding: 0;
  margin-top: 0;
  margin-bottom: 0.4rem;
}

.feedback-section p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 1.5rem;
}

.feedback-tabs {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.feedback-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-tertiary);
  padding: 0.5rem 1rem;
  font-size: 13.5px;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: -1px;
}
.feedback-tab:hover { color: var(--text); }
.feedback-tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

.feedback-form { display: flex; flex-direction: column; gap: 1rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 13px; font-weight: 500; color: var(--text-secondary); }

.form-input, .form-textarea, .form-select {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  padding: 0.65rem 0.9rem;
  transition: border-color var(--transition);
  width: 100%;
  outline: none;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-textarea { resize: vertical; min-height: 110px; line-height: 1.6; }
.form-select option { background: var(--surface); }

.feedback-submit {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: var(--radius);
  padding: 0.75rem 1.75rem;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  align-self: flex-start;
}
.feedback-submit:hover { opacity: 0.88; transform: translateY(-1px); box-shadow: 0 4px 12px var(--accent-glow); }
.feedback-submit:active { transform: translateY(0); }

.feedback-note {
  font-size: 12.5px;
  color: var(--text-tertiary);
  margin-top: 0.5rem;
}

.feedback-success {
  display: none;
  background: var(--success-dim);
  border: 1px solid var(--success);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  color: var(--success);
  font-size: 14.5px;
  font-weight: 500;
}

/* ════════════════════════════════ */
/* RESPONSIVE                      */
/* ════════════════════════════════ */
@media (max-width: 900px) {
  .main { padding: 2rem 2.5rem 3rem; }
}

@media (max-width: 768px) {
  .sidebar {
    left: -280px;
    width: 260px;
    box-shadow: 4px 0 20px rgba(0,0,0,0.4);
  }
  .sidebar.active { left: 0; }

  .menu-toggle { display: flex; }

  .main {
    margin-left: 0;
    padding: 2rem 1.5rem 3rem;
  }
  .page-title { font-size: 1.6rem; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .main { padding: 1.5rem 1rem 2.5rem; }
  .page-title { font-size: 1.35rem; }
}

/* ════════════════════════════════ */
/* OVERLAY (mobile sidebar)        */
/* ════════════════════════════════ */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
  top: 52px;
}
.sidebar-overlay.active { display: block; }

/* ════════════════════════════════ */
/* SYNTAX HIGHLIGHT (light/dark)   */
/* ════════════════════════════════ */
[data-theme="light"] .code-block code,
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .code-block code { color: #444; }
}