/* ============================================================
   Muso v2 — Application styles
   Apple-inspired, soft shadows, mobile-first, dark-mode aware
   ============================================================ */

:root {
  --muso-primary:        #0B4F8C;
  --muso-primary-hover:  #093d6e;
  --muso-bcbc:           #00928f;
  --muso-accent:         #F5A623;
  --muso-success:        #1f9d55;
  --muso-warning:        #d97706;
  --muso-danger:         #dc2626;
  --muso-bg:             #F4F6FA;
  --muso-surface:        #FFFFFF;
  --muso-border:         #E5E9F2;
  --muso-text:           #1B2433;
  --muso-text-muted:     #5A6478;
  --muso-shadow-sm:      0 1px 2px rgba(15, 23, 42, .04), 0 1px 3px rgba(15, 23, 42, .06);
  --muso-shadow-md:      0 4px 6px -1px rgba(15, 23, 42, .06), 0 2px 4px -2px rgba(15, 23, 42, .06);
  --muso-shadow-lg:      0 10px 20px -5px rgba(15, 23, 42, .08), 0 6px 12px -6px rgba(15, 23, 42, .06);
  --muso-radius:         14px;
  --muso-radius-sm:      10px;
  --muso-sidebar-w:      248px;
  --muso-sidebar-w-collapsed: 72px;
  --muso-topbar-h:       64px;
  --muso-anim:           220ms cubic-bezier(.2,.7,.2,1);
}

[data-bs-theme="dark"], :root.dark {
  --muso-bg:        #0E141E;
  --muso-surface:   #161E2C;
  --muso-border:    #243043;
  --muso-text:      #E6EAF2;
  --muso-text-muted:#9AA4B8;
}

@media (prefers-color-scheme: dark) {
  html[data-bs-theme="auto"] {
    --muso-bg:        #0E141E;
    --muso-surface:   #161E2C;
    --muso-border:    #243043;
    --muso-text:      #E6EAF2;
    --muso-text-muted:#9AA4B8;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--muso-bg);
  color: var(--muso-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

/* ----------- Sidebar ----------- */
.muso-sidebar {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: var(--muso-sidebar-w);
  background: var(--muso-surface);
  border-right: 1px solid var(--muso-border);
  display: flex; flex-direction: column; padding: 18px 14px 14px;
  transition: width var(--muso-anim), transform var(--muso-anim);
  z-index: 1040; overflow-x: hidden;
}
.muso-sidebar.is-collapsed { width: var(--muso-sidebar-w-collapsed); }
.muso-sidebar.is-collapsed .muso-brand span,
.muso-sidebar.is-collapsed .muso-nav a span { display: none; }
.muso-sidebar.is-collapsed .muso-nav a { justify-content: center; }
.muso-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1.25rem; color: var(--muso-primary);
  padding: 6px 8px 14px; border-bottom: 1px solid var(--muso-border); margin-bottom: 8px;
}
.muso-brand:hover { text-decoration: none; }
.muso-brand-mark {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 34px;
  border: 1px solid var(--muso-border);
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}
.muso-brand-mark img {
  width: 26px;
  height: 26px;
  object-fit: contain;
  display: block;
}
.muso-nav { display: flex; flex-direction: column; gap: 2px; overflow-y: auto; flex: 1; }
.muso-nav a {
  display: flex; align-items: center; gap: 12px; padding: 9px 12px;
  border-radius: var(--muso-radius-sm); color: var(--muso-text);
  font-size: 0.95rem; transition: background var(--muso-anim), color var(--muso-anim);
  white-space: nowrap; position: relative;
}
.muso-nav a:hover { background: rgba(11, 79, 140, .08); color: var(--muso-primary); text-decoration: none; }
.muso-nav a.active { background: var(--muso-primary); color: #fff; }
.muso-nav a.active:hover { background: var(--muso-primary-hover); color: #fff; }
.muso-nav a i { font-size: 1.15rem; flex-shrink: 0; }
.muso-sidebar.is-collapsed .muso-nav a[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute; left: calc(100% + 8px); top: 50%; transform: translateY(-50%);
  background: var(--muso-text); color: var(--muso-surface);
  padding: 4px 8px; border-radius: 6px; font-size: 0.8rem;
  opacity: 0; pointer-events: none; transition: opacity 120ms;
  white-space: nowrap; z-index: 1100;
}
.muso-sidebar.is-collapsed .muso-nav a:hover[data-tooltip]::after { opacity: 1; }
.muso-collapse {
  margin-top: 8px; align-self: flex-end;
  border: none; background: transparent; color: var(--muso-text-muted);
  width: 36px; height: 36px; border-radius: 8px;
}
.muso-collapse:hover { background: rgba(11, 79, 140, .08); color: var(--muso-primary); }
.muso-sidebar.is-collapsed .muso-collapse i { transform: rotate(180deg); }

/* ----------- Top bar ----------- */
.muso-topbar {
  position: fixed; top: 0; right: 0; left: var(--muso-sidebar-w);
  height: var(--muso-topbar-h);
  background: var(--muso-surface); border-bottom: 1px solid var(--muso-border);
  display: flex; align-items: center; gap: 16px; padding: 0 24px;
  transition: left var(--muso-anim); z-index: 1030;
}
.muso-sidebar.is-collapsed + .muso-topbar { left: var(--muso-sidebar-w-collapsed); }
.muso-topbar-title { flex: 1; }
.muso-topbar-actions { display: flex; align-items: center; gap: 8px; }
.muso-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--muso-primary); color: #fff;
  border: none; font-weight: 600; font-size: 0.85rem;
  display: inline-flex; align-items: center; justify-content: center;
}

/* ----------- Main area ----------- */
.muso-main {
  margin-left: var(--muso-sidebar-w);
  margin-top: var(--muso-topbar-h);
  padding: 24px;
  min-height: calc(100vh - var(--muso-topbar-h));
  transition: margin-left var(--muso-anim);
}
.muso-sidebar.is-collapsed ~ .muso-main { margin-left: var(--muso-sidebar-w-collapsed); }

/* ----------- Cards ----------- */
.muso-card {
  background: var(--muso-surface); border: 1px solid var(--muso-border);
  border-radius: var(--muso-radius); padding: 20px;
  box-shadow: var(--muso-shadow-sm);
}
.muso-card-hover { transition: transform var(--muso-anim), box-shadow var(--muso-anim); }
.muso-card-hover:hover { transform: translateY(-2px); box-shadow: var(--muso-shadow-md); }

.muso-stat { display: flex; flex-direction: column; gap: 4px; }
.muso-stat-label { font-size: 0.85rem; color: var(--muso-text-muted); text-transform: uppercase; letter-spacing: .04em; }
.muso-stat-value { font-size: 2rem; font-weight: 700; line-height: 1.1; }
.muso-stat-delta { font-size: 0.85rem; color: var(--muso-success); }
.muso-stat-delta.is-down { color: var(--muso-danger); }

/* ----------- Tables ----------- */
.muso-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 0.95rem; }
.muso-table thead th {
  text-align: left; font-weight: 600; font-size: 0.8rem;
  color: var(--muso-text-muted); text-transform: uppercase; letter-spacing: .04em;
  padding: 12px 16px; border-bottom: 1px solid var(--muso-border);
  background: var(--muso-surface); position: sticky; top: 0; z-index: 1;
}
.muso-table tbody td { padding: 12px 16px; border-bottom: 1px solid var(--muso-border); vertical-align: middle; }
.muso-table tbody tr:hover { background: rgba(11, 79, 140, .04); }
.muso-table tbody tr:last-child td { border-bottom: 0; }

/* ----------- Buttons / forms (Bootstrap overrides) ----------- */
.btn-primary { background: var(--muso-primary); border-color: var(--muso-primary); }
.btn-primary:hover, .btn-primary:focus { background: var(--muso-primary-hover); border-color: var(--muso-primary-hover); }
.btn { border-radius: var(--muso-radius-sm); font-weight: 500; }
.form-control, .form-select { border-radius: var(--muso-radius-sm); border-color: var(--muso-border); background: var(--muso-surface); color: var(--muso-text); }
.form-control:focus, .form-select:focus { border-color: var(--muso-primary); box-shadow: 0 0 0 .2rem rgba(11, 79, 140, .15); }

/* ----------- Status pills ----------- */
.muso-pill { display: inline-block; padding: 2px 10px; font-size: 0.75rem; font-weight: 600; border-radius: 999px; text-transform: uppercase; letter-spacing: .04em; }
.muso-pill-draft   { background: rgba(154, 164, 184, .15); color: var(--muso-text-muted); }
.muso-pill-active  { background: rgba(31, 157, 85, .15);  color: var(--muso-success); }
.muso-pill-sent    { background: rgba(11, 79, 140, .12);  color: var(--muso-primary); }
.muso-pill-signed  { background: rgba(31, 157, 85, .15);  color: var(--muso-success); }
.muso-pill-expired { background: rgba(220, 38, 38, .12);  color: var(--muso-danger); }
.muso-pill-warn    { background: rgba(217, 119, 6, .15);  color: var(--muso-warning); }
.muso-pill-news-category { background: rgba(0, 146, 143, .14); color: var(--muso-bcbc); }
.muso-pill-news-alert { background: rgba(220, 38, 38, .12); color: var(--muso-danger); }

.timetable-calendar {
  --time-rail-width: 76px;
  display: grid;
  grid-template-columns: var(--time-rail-width) repeat(5, minmax(210px, 1fr));
  grid-template-rows: 48px var(--timetable-height);
  width: 100%;
  min-width: 1180px;
  overflow: auto;
  border: 1px solid var(--muso-border);
  border-radius: var(--muso-radius);
  background: var(--muso-surface);
  box-shadow: var(--muso-shadow-sm);
}

.timetable-calendar-corner,
.timetable-calendar-header {
  position: sticky;
  top: 0;
  z-index: 4;
  min-width: 0;
  border-bottom: 1px solid var(--muso-border);
  background: #eef5fb;
}

[data-bs-theme="dark"] .timetable-calendar-corner,
[data-bs-theme="dark"] .timetable-calendar-header {
  background: #172132;
}

.timetable-calendar-corner {
  left: 0;
  z-index: 6;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muso-text-muted);
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.timetable-calendar-header {
  display: grid;
  align-content: center;
  gap: 1px;
  padding: 8px 12px;
  border-left: 1px solid var(--muso-border);
}

.timetable-calendar-header span {
  color: var(--muso-text-muted);
  font-size: .82rem;
}

.timetable-time-rail {
  position: sticky;
  left: 0;
  z-index: 3;
  grid-column: 1;
  grid-row: 2;
  border-right: 1px solid var(--muso-border);
  background: var(--muso-surface);
}

.timetable-time-rail span {
  position: absolute;
  right: 10px;
  transform: translateY(-50%);
  color: var(--muso-text-muted);
  font-size: .78rem;
  font-weight: 600;
}

.timetable-calendar-day {
  position: relative;
  grid-row: 2;
  min-width: 210px;
  border-left: 1px solid var(--muso-border);
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(148, 163, 184, .18) 0,
      rgba(148, 163, 184, .18) 1px,
      transparent 1px,
      transparent var(--timetable-hour-height)
    ),
    linear-gradient(to bottom, rgba(11, 79, 140, .025), rgba(11, 79, 140, 0));
}

.timetable-calendar-day.is-drop-target {
  outline: 2px dashed var(--muso-primary);
  outline-offset: -5px;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(11, 79, 140, .22) 0,
      rgba(11, 79, 140, .22) 1px,
      rgba(11, 79, 140, .08) 1px,
      rgba(11, 79, 140, .08) var(--timetable-hour-height)
    );
}

.timetable-event {
  position: absolute;
  left: 8px;
  right: 8px;
  min-height: 38px;
  overflow: hidden;
  border: 1px solid rgba(11, 79, 140, .26);
  border-left: 5px solid var(--muso-primary);
  border-radius: 8px;
  padding: 8px 30px 12px 10px;
  background: #f5f9fd;
  box-shadow: var(--muso-shadow-sm);
}

[data-bs-theme="dark"] .timetable-event {
  background: #162537;
}

.timetable-event.is-selected {
  border-color: var(--muso-primary);
  box-shadow: 0 0 0 3px rgba(11, 79, 140, .16), var(--muso-shadow-sm);
}

.timetable-event.is-dragging {
  opacity: .62;
}

.timetable-event-main {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.timetable-slot-school {
  min-width: 0;
  overflow: hidden;
  color: var(--muso-text);
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.timetable-slot-school:hover {
  color: var(--muso-primary);
}

.timetable-event-term {
  flex: 0 0 auto;
  color: var(--muso-primary);
  font-size: .68rem;
  font-weight: 800;
  text-transform: uppercase;
}

.timetable-event-area {
  display: block;
  overflow: hidden;
  color: var(--muso-text);
  font-size: .86rem;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.timetable-event-meta,
.timetable-event-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  color: var(--muso-text-muted);
  font-size: .76rem;
  line-height: 1.2;
}

.timetable-event-contact .is-lost {
  color: var(--muso-warning);
  font-weight: 700;
}

.timetable-slot-form {
  margin: 0;
}

.timetable-event-close {
  position: absolute;
  top: 5px;
  right: 5px;
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border: 0;
  border-radius: 6px;
  background: rgba(255, 255, 255, .72);
  color: var(--muso-text-muted);
  font-size: .72rem;
}

[data-bs-theme="dark"] .timetable-event-close {
  background: rgba(15, 23, 42, .72);
}

.timetable-event-close:hover {
  color: var(--muso-danger);
}

.timetable-resize-handle {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 10px;
  cursor: ns-resize;
  border: 0;
  border-top: 1px solid rgba(11, 79, 140, .18);
  background: linear-gradient(to right, transparent, rgba(11, 79, 140, .18), transparent);
}

.timetable-overview-item {
  display: grid;
  gap: 2px;
  padding: 10px 12px;
  border: 1px solid var(--muso-border);
  border-radius: 8px;
  color: var(--muso-text);
  text-decoration: none;
  background: var(--muso-surface);
}

.timetable-overview-item span {
  color: var(--muso-text-muted);
  font-size: .9rem;
}

.timetable-group {
  border: 1px solid var(--muso-border);
  border-radius: 8px;
  padding: 12px;
}

.timetable-pupil-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.timetable-pupil-list a {
  border: 1px solid var(--muso-border);
  border-radius: 999px;
  color: var(--muso-text);
  font-size: .85rem;
  padding: 3px 10px;
  text-decoration: none;
}

.timetable-pupil-list a span {
  color: var(--muso-text-muted);
}

.timetable-unplaced {
  border: 1px solid var(--muso-border);
  border-radius: 8px;
  padding: 10px;
}

.timetable-unplaced span {
  display: block;
  color: var(--muso-text-muted);
  font-size: .85rem;
}

@media (max-width: 1199.98px) {
  .timetable-calendar { min-width: 1040px; }
}

/* ----------- Toasts ----------- */
.muso-toasts { position: fixed; right: 20px; bottom: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 1080; }
.muso-toast { background: var(--muso-surface); border: 1px solid var(--muso-border); border-radius: var(--muso-radius-sm); padding: 12px 16px; box-shadow: var(--muso-shadow-md); animation: musoSlide 220ms ease-out; }
.muso-toast.is-success { border-left: 4px solid var(--muso-success); }
.muso-toast.is-error   { border-left: 4px solid var(--muso-danger); }
@keyframes musoSlide { from { transform: translateY(10px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ----------- Install prompt ----------- */
.muso-install-prompt {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 1075;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  width: min(440px, calc(100vw - 32px));
  padding: 12px;
  border: 1px solid var(--muso-border);
  border-radius: 14px;
  background: var(--muso-surface);
  box-shadow: var(--muso-shadow-lg);
}
.muso-install-prompt[hidden] { display: none !important; }
.muso-install-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--muso-border);
  border-radius: 12px;
  background: #fff;
}
.muso-install-icon img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}
.muso-install-copy {
  display: grid;
  gap: 2px;
  min-width: 0;
  font-size: .9rem;
}
.muso-install-copy span,
.muso-install-steps {
  color: var(--muso-text-muted);
  font-size: .82rem;
}
.muso-install-steps {
  margin: 4px 0 0 18px;
  padding: 0;
}
.muso-install-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

/* ----------- Login screen ----------- */
.muso-auth-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: linear-gradient(135deg, var(--muso-bg) 0%, #DDE6F2 100%); }
[data-bs-theme="dark"] .muso-auth-page { background: linear-gradient(135deg, #0E141E 0%, #1B2433 100%); }
.muso-auth-card { width: 100%; max-width: 420px; padding: 32px; }
.muso-auth-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.4rem; color: var(--muso-primary); margin-bottom: 24px; }

/* ----------- Mobile ----------- */
@media (max-width: 768px) {
  .muso-sidebar { transform: translateX(-100%); width: 84vw; max-width: 320px; }
  .muso-sidebar.is-open { transform: translateX(0); box-shadow: var(--muso-shadow-lg); }
  .muso-topbar, .muso-main { left: 0; margin-left: 0; padding-left: 16px; padding-right: 16px; }
  .muso-topbar { padding-left: 12px; padding-right: 12px; }
  .muso-collapse { display: none; }
  .muso-install-prompt {
    right: 10px;
    bottom: max(10px, env(safe-area-inset-bottom));
    left: 10px;
    width: auto;
    grid-template-columns: 40px minmax(0, 1fr);
  }
  .muso-install-actions {
    grid-column: 1 / -1;
    justify-content: flex-end;
  }
}