/**
 * Compudata brand theme layered over Bootstrap 5.
 * Colours sourced from compudatasystems/compudata-branding (cd-colours.css).
 * Supports light and dark mode via prefers-color-scheme.
 */

:root {
  --cd-blue: #3377cc;
  --cd-blue-dark: #2566bb;
  --cd-blue-darker: #1a4d8f;
  --cd-orange: #ff6600;
  --cd-text-primary: #333333;
  --cd-text-secondary: #666666;
  --cd-bg-light: #f5f5f5;
  --cd-bg-white: #ffffff;

  --cd-page-bg: var(--cd-bg-light);
  --cd-surface: var(--cd-bg-white);
  --cd-border: #e2e2e2;
  --cd-text: var(--cd-text-primary);
  --cd-muted: var(--cd-text-secondary);

  --bs-primary: var(--cd-blue);
  --bs-link-color: var(--cd-blue-darker);
}

/* Dark theme is driven by Bootstrap's native data-bs-theme switch (set by the theme
   toggle / OS preference in layout.php), so Bootstrap recolours all its own components
   too — not just our brand variables. */
[data-bs-theme="dark"] {
  --cd-page-bg: #121212;
  --cd-surface: #1e1e1e;
  --cd-border: #3a3a3a;
  --cd-text: #e8e8e8;
  --cd-muted: #b6b6b6;
  --bs-link-color: #7fb0ff;
  --bs-link-hover-color: #a6c8ff;
}

body {
  background: var(--cd-page-bg);
  color: var(--cd-text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
}

.cds-shell {
  max-width: 640px;
  margin: 0 auto;
  padding: 1.5rem 1rem 2rem;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.cds-header {
  padding: 0.5rem 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.cds-logo {
  height: 34px;
  width: auto;
  max-width: 70%;
}

/* Theme toggle (auto / light / dark) */
.theme-toggle {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--cd-border);
  border-radius: 10px;
  background: var(--cd-surface);
  color: var(--cd-muted);
  cursor: pointer;
  transition: color .15s, border-color .15s;
}
.theme-toggle:hover {
  color: var(--cd-blue);
  border-color: var(--cd-blue);
}
.theme-toggle .ic { display: none; }
:root[data-theme-choice="auto"]  .theme-toggle .ic-auto  { display: block; }
:root[data-theme-choice="light"] .theme-toggle .ic-light { display: block; }
:root[data-theme-choice="dark"]  .theme-toggle .ic-dark  { display: block; }
/* Fallback before JS sets the attribute: show the auto icon */
:root:not([data-theme-choice]) .theme-toggle .ic-auto { display: block; }

.cds-main { flex: 1 0 auto; }

.cds-footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--cd-border);
  color: var(--cd-muted);
  font-size: 0.8rem;
  text-align: center;
}

.card {
  background: var(--cd-surface);
  border: 1px solid var(--cd-border);
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}
.card-body { padding: 1.5rem; }

h1, .h1 { font-size: 1.5rem; font-weight: 700; }
h2, .h2 { font-size: 1.15rem; font-weight: 600; }
.text-muted { color: var(--cd-muted) !important; }

.form-label { font-weight: 600; color: var(--cd-text); }
.form-control, .form-select {
  background: var(--cd-surface);
  color: var(--cd-text);
  border-color: var(--cd-border);
}
.form-control:focus, .form-select:focus {
  border-color: var(--cd-blue);
  box-shadow: 0 0 0 0.2rem rgba(51, 119, 204, 0.25);
  background: var(--cd-surface);
  color: var(--cd-text);
}
.form-text { color: var(--cd-muted); }

.btn-primary {
  --bs-btn-bg: var(--cd-blue);
  --bs-btn-border-color: var(--cd-blue);
  --bs-btn-hover-bg: var(--cd-blue-dark);
  --bs-btn-hover-border-color: var(--cd-blue-dark);
  --bs-btn-active-bg: var(--cd-blue-darker);
  --bs-btn-active-border-color: var(--cd-blue-darker);
}
.btn-accent {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--cd-orange);
  --bs-btn-border-color: var(--cd-orange);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: #e65c00;
  --bs-btn-hover-border-color: #e65c00;
  color: #fff;
}

.cds-accent-bar {
  height: 4px;
  width: 56px;
  background: var(--cd-orange);
  border-radius: 2px;
  margin-bottom: 1rem;
}

.cds-linkbox {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
  word-break: break-all;
  background: var(--cd-page-bg);
  border: 1px dashed var(--cd-border);
  border-radius: 8px;
  padding: 0.75rem;
}

.cds-instructions {
  background: rgba(51, 119, 204, 0.08);
  border-left: 3px solid var(--cd-blue);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  white-space: pre-wrap;
}