/* Material Design 3 theme on top of vendored Bootstrap 5 (grid, forms,
   components) — Bootstrap supplies structure and accessibility behavior;
   this file overrides its visual language toward Google's actual product
   design system (Cloud Console / Workspace Admin family): tonal surfaces,
   soft elevation instead of hard borders, pill-shaped filled buttons,
   Roboto. Brand navy (#1A3C6B) is kept as the identity accent in place of
   Google's own blue — see DESIGN.md.

   Bootstrap 5.3's compiled CSS bakes literal hex/rgba into each component's
   own per-component custom properties rather than referencing --bs-primary
   at runtime, so retheming means overriding the specific classes below
   rather than one root variable. No Sass build step — matches the rest of
   this project's zero-build static-file approach. */

:root {
  --tss-brand: #1a3c6b;
  --tss-brand-hover: #14304f;
  --tss-brand-pressed: #0f2540;
  --tss-brand-rgb: 26, 60, 107;
  --tss-brand-tint: #e8edf5; /* primary at ~8% on white, for tonal chips/hover */

  /* Google's actual neutral palette (Cloud Console / Workspace) — this,
     as much as any single color, is what reads as "Google" at a glance. */
  --md-bg: #f8f9fa;
  --md-surface: #ffffff;
  --md-surface-variant: #f1f3f4;
  --md-ink: #202124;
  --md-ink-secondary: #5f6368;
  --md-outline: #dadce0;
  --md-outline-variant: #e8eaed;

  --md-success: #1e8e3e;
  --md-success-tint: #e6f4ea;
  --md-danger: #d93025;
  --md-danger-tint: #fce8e6;
  --md-warning: #f9ab00;
  --md-warning-tint: #fef7e0;

  /* Google's own elevation recipe (dual-shadow: ambient + key light). */
  --elev-1: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
  --elev-2: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 2px 6px 2px rgba(60, 64, 67, 0.15);
  --elev-3: 0 1px 3px 0 rgba(60, 64, 67, 0.3), 0 4px 8px 3px rgba(60, 64, 67, 0.15);

  --bs-body-bg: var(--md-bg);
  --bs-body-color: var(--md-ink);
  --bs-border-color: var(--md-outline);
  --bs-secondary-color: var(--md-ink-secondary);
  --bs-tertiary-bg: var(--md-surface-variant);

  --bs-primary: var(--tss-brand);
  --bs-primary-rgb: var(--tss-brand-rgb);
  --bs-link-color: var(--tss-brand);
  --bs-link-color-rgb: var(--tss-brand-rgb);
  --bs-link-hover-color: var(--tss-brand-hover);
  --bs-link-hover-color-rgb: 20, 48, 79;
}

* {
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  letter-spacing: 0;
}

h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
  font-weight: 500;
  color: var(--md-ink);
}

a {
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ---- Buttons: pill-shaped filled/outlined/text, MD3's most recognizable
   signature (MD2 and Bootstrap both use small-radius rectangles). ---- */
.btn {
  border-radius: 100px;
  padding: 0.5rem 1.5rem;
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.0125em;
  transition: box-shadow 180ms cubic-bezier(0.2, 0, 0, 1), background-color 180ms cubic-bezier(0.2, 0, 0, 1),
    border-color 180ms cubic-bezier(0.2, 0, 0, 1), transform 180ms cubic-bezier(0.2, 0, 0, 1);
  position: relative;
  overflow: hidden;
}
.btn:active {
  transform: scale(0.98);
}
.btn-sm {
  padding: 0.3rem 1rem;
  font-size: 0.8125rem;
}

.btn-primary {
  --bs-btn-bg: var(--tss-brand);
  --bs-btn-border-color: var(--tss-brand);
  --bs-btn-hover-bg: var(--tss-brand-hover);
  --bs-btn-hover-border-color: var(--tss-brand-hover);
  --bs-btn-active-bg: var(--tss-brand-pressed);
  --bs-btn-active-border-color: var(--tss-brand-pressed);
  --bs-btn-focus-shadow-rgb: var(--tss-brand-rgb);
  --bs-btn-disabled-bg: var(--md-outline);
  --bs-btn-disabled-border-color: var(--md-outline);
  box-shadow: var(--elev-1);
}
.btn-primary:hover {
  box-shadow: var(--elev-2);
}
.btn-primary:disabled {
  box-shadow: none;
  color: var(--md-ink-secondary);
}

.btn-outline-primary,
.btn-outline-secondary {
  --bs-btn-color: var(--tss-brand);
  --bs-btn-border-color: var(--md-outline);
  --bs-btn-hover-color: var(--tss-brand);
  --bs-btn-hover-bg: var(--tss-brand-tint);
  --bs-btn-hover-border-color: var(--tss-brand);
  --bs-btn-active-color: var(--tss-brand);
  --bs-btn-active-bg: var(--tss-brand-tint);
  --bs-btn-active-border-color: var(--tss-brand);
  --bs-btn-focus-shadow-rgb: var(--tss-brand-rgb);
}

.btn-danger {
  --bs-btn-bg: var(--md-danger);
  --bs-btn-border-color: var(--md-danger);
  --bs-btn-hover-bg: #b3261e;
  --bs-btn-hover-border-color: #b3261e;
  --bs-btn-active-bg: #8c1d17;
  --bs-btn-active-border-color: #8c1d17;
  box-shadow: var(--elev-1);
}

/* Text button — no fill/border, MD3's tertiary action. Used for Cancel /
   inline links styled as buttons (.btn-link already means this). */
.btn-link {
  --bs-btn-color: var(--tss-brand);
  --bs-btn-hover-color: var(--tss-brand-hover);
  border-radius: 100px;
  text-decoration: none;
  font-weight: 500;
}
.btn-link:hover {
  background: var(--tss-brand-tint);
  text-decoration: none;
}

/* ---- Surfaces: soft elevation instead of a visible border. ---- */
.card {
  border: none;
  border-radius: 16px;
  box-shadow: var(--elev-1);
  background: var(--md-surface);
}

.border, .border-top, .border-bottom {
  border-color: var(--md-outline) !important;
}

/* Bordered panels used for the geofence / organiser-assign groupings on the
   duty form — tonal surface instead of a border, matching MD3's
   "filled card" pattern for grouped, secondary content. */
.bg-body-tertiary {
  background: var(--md-surface-variant) !important;
  border: none !important;
  border-radius: 12px !important;
}

/* ---- Form controls: rounded, tonal focus state. ---- */
.form-control,
.form-select {
  border-radius: 8px;
  border-color: var(--md-outline);
  padding: 0.55rem 0.85rem;
}
.form-control:focus,
.form-select:focus {
  border-color: var(--tss-brand);
  border-width: 2px;
  padding: 0.5rem 0.8rem; /* compensate for the thicker border so text doesn't jump */
  box-shadow: none;
}
.form-check-input:checked {
  background-color: var(--tss-brand);
  border-color: var(--tss-brand);
}
.form-check-input:focus {
  border-color: var(--tss-brand);
  box-shadow: 0 0 0 0.2rem var(--tss-brand-tint);
}
label, .form-label {
  color: var(--md-ink-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
}

/* ---- Top app bar: white/elevated, not a solid brand-color block — this is
   the single biggest structural signal of "Google admin console" vs.
   "generic Bootstrap navbar." ---- */
.navbar-tss {
  background: var(--md-surface);
  box-shadow: var(--elev-1);
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}
.navbar-tss .navbar-brand {
  color: var(--md-ink);
  font-weight: 500;
  font-size: 1.1rem;
}
.navbar-tss .nav-link {
  color: var(--md-ink-secondary);
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.4rem 0.9rem;
  border-radius: 100px;
  transition: background-color 150ms ease;
}
.navbar-tss .nav-link:hover {
  background: var(--md-surface-variant);
  color: var(--md-ink);
}
.navbar-tss .nav-link.active {
  background: var(--tss-brand-tint);
  color: var(--tss-brand);
}
.navbar-tss .text-white-50 {
  color: var(--md-ink-secondary) !important;
}
.navbar-tss .btn-outline-light {
  --bs-btn-color: var(--md-ink-secondary);
  --bs-btn-border-color: var(--md-outline);
  --bs-btn-hover-color: var(--md-ink);
  --bs-btn-hover-bg: var(--md-surface-variant);
  --bs-btn-hover-border-color: var(--md-outline);
}

/* Login logo badge */
.logo-badge {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--tss-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 500;
  color: #fff;
  letter-spacing: 1px;
  margin: 0 auto 1rem;
  box-shadow: var(--elev-2);
}

.confidential {
  text-align: center;
  font-size: 0.75rem;
  color: var(--md-ink-secondary);
  margin-top: 1.5rem;
  line-height: 1.6;
}

/* ---- Tables: minimal grid, row hover, MD-style header. ---- */
.table {
  --bs-table-bg: transparent;
  font-size: 0.875rem;
}
.table > :not(caption) > * > * {
  border-bottom-color: var(--md-outline-variant);
  padding: 0.85rem 1rem;
}
.table thead th {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--md-ink-secondary);
  border-bottom-width: 1px;
  background: transparent !important;
}
.table-hover > tbody > tr:hover > * {
  background-color: var(--md-surface-variant);
}
.table-light {
  --bs-table-bg: transparent;
}

/* Status: text + dot, never color-fill alone — outdoor/color-blind safe.
   Tonal (light bg + dark text of the same hue) rather than solid-fill, the
   MD3 "assist chip" treatment. */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  margin-right: 0.4em;
}
.text-success { color: var(--md-success) !important; }
.text-danger { color: var(--md-danger) !important; }
.text-secondary { color: var(--md-ink-secondary) !important; }

/* Duty-status pills on the dashboard tables (scheduled/active/completed). */
.badge {
  border-radius: 100px;
  font-weight: 500;
  padding: 0.35em 0.85em;
}
.text-bg-primary { background-color: var(--tss-brand-tint) !important; color: var(--tss-brand) !important; }
.text-bg-secondary { background-color: var(--md-surface-variant) !important; color: var(--md-ink-secondary) !important; }
.text-bg-success { background-color: var(--md-success-tint) !important; color: var(--md-success) !important; }

/* Sync/offline banner: persistent, never a toast — pending state must stay
   visible until it resolves, not auto-dismiss. Tonal alert, not a solid
   color block. */
.alert {
  border: none;
  border-radius: 12px;
  font-size: 0.875rem;
}
.alert-secondary { background: var(--md-surface-variant); color: var(--md-ink-secondary); }
.alert-danger { background: var(--md-danger-tint); color: var(--md-danger); }
.alert-warning { background: var(--md-warning-tint); color: #7a5900; }

.link-code {
  display: block;
  background: var(--md-surface-variant);
  border-radius: 8px;
  padding: 0.6rem 0.85rem;
  font-size: 0.75rem;
  word-break: break-all;
}

/* ---- Ripple: Material's signature click-feedback interaction. Purely
   state feedback (click acknowledged), not decoration — see ripple.js. ---- */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.25;
  transform: scale(0);
  animation: tss-ripple 500ms cubic-bezier(0.2, 0, 0, 1);
  pointer-events: none;
}
@keyframes tss-ripple {
  to {
    transform: scale(2.5);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}