/* Noreene + Jaycel Calendar — Flat Design (Notion/Linear/Cal.com inspired)
 * Palette: calendar blue #2563EB + event green #059669 + slate neutrals
 * Type: Inter 300/400/500/600/700
 */

:root {
  --color-primary: #2563EB;
  --color-primary-hover: #1D4ED8;
  --color-on-primary: #FFFFFF;
  --color-accent: #059669;
  --color-accent-hover: #047857;
  --color-bg: #FFFFFF;
  --color-bg-subtle: #F8FAFC;
  --color-fg: #0F172A;
  --color-fg-muted: #64748B;
  --color-fg-subtle: #94A3B8;
  --color-border: #E2E8F0;
  --color-border-hover: #CBD5E1;
  --color-danger: #DC2626;
  --color-danger-hover: #B91C1C;
  --color-warn-bg: #FEF3C7;
  --color-warn-fg: #92400E;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 999px;
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.08), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
  --shadow-modal: 0 20px 50px -12px rgba(15, 23, 42, 0.25);
  --transition: 150ms ease;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--color-bg-subtle);
  color: var(--color-fg);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

/* ---------- Top bar ---------- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 32px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { width: 20px; height: 20px; color: var(--color-primary); }
.brand h1 { margin: 0; font-size: 16px; font-weight: 600; letter-spacing: -0.01em; color: var(--color-fg); }

.identity-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 8px 6px 12px;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-fg);
}
.identity-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  border: none; background: transparent;
  color: var(--color-fg-muted); cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.icon-btn:hover { background: var(--color-border); color: var(--color-fg); }
.icon-btn svg { width: 16px; height: 16px; }

/* ---------- Banner ---------- */
.banner {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 32px;
  background: var(--color-warn-bg);
  color: var(--color-warn-fg);
  font-size: 13px;
  font-weight: 500;
  border-bottom: 1px solid #FCD34D;
}
.banner svg { width: 16px; height: 16px; flex-shrink: 0; }

/* ---------- Calendar area ---------- */
main#calendar {
  padding: 24px 32px;
  background: var(--color-bg-subtle);
}
.fc {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  font-family: 'Inter', sans-serif;
}
.fc-toolbar-title {
  color: var(--color-fg) !important;
  font-size: 18px !important;
  font-weight: 600 !important;
  letter-spacing: -0.01em;
}
.fc-col-header-cell-cushion {
  color: var(--color-fg-muted) !important;
  font-weight: 500 !important;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 12px 4px !important;
}
.fc-daygrid-day-number {
  color: var(--color-fg) !important;
  font-weight: 500;
  font-size: 13px;
  padding: 8px !important;
}
.fc-day-today {
  background: rgba(37, 99, 235, 0.04) !important;
}
.fc-day-today .fc-daygrid-day-number {
  color: var(--color-primary) !important;
  font-weight: 700;
}
.fc-button-primary {
  background: var(--color-bg) !important;
  border-color: var(--color-border) !important;
  color: var(--color-fg) !important;
  font-weight: 500 !important;
  font-size: 13px !important;
  padding: 6px 12px !important;
  border-radius: var(--radius-md) !important;
  box-shadow: none !important;
  text-transform: capitalize !important;
  transition: background var(--transition), border-color var(--transition);
}
.fc-button-primary:hover {
  background: var(--color-bg-subtle) !important;
  border-color: var(--color-border-hover) !important;
}
.fc-button-primary:focus {
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2) !important;
}
.fc-button-active, .fc-button-primary:not(:disabled).fc-button-active {
  background: var(--color-fg) !important;
  border-color: var(--color-fg) !important;
  color: var(--color-on-primary) !important;
}
.fc-event {
  border: none !important;
  border-left: 3px solid currentColor !important;
  padding: 2px 6px !important;
  font-size: 12px !important;
  font-weight: 500 !important;
  border-radius: var(--radius-sm) !important;
  cursor: pointer;
  transition: opacity var(--transition);
}
.fc-event:hover { opacity: 0.85; }
.fc-daygrid-event-dot { display: none !important; }
.fc-scrollgrid { border-color: var(--color-border) !important; }
.fc-scrollgrid-section > * { border-color: var(--color-border) !important; }
.fc-col-header-cell, .fc-daygrid-day { border-color: var(--color-border) !important; }

/* ---------- Legend ---------- */
.legend {
  display: flex; gap: 8px;
  padding: 0 32px 24px;
  flex-wrap: wrap;
  background: var(--color-bg-subtle);
}
.legend .chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-fg);
}
.legend .chip .dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

/* ---------- FAB ---------- */
.fab {
  position: fixed; right: 32px; bottom: 32px;
  display: flex; align-items: center; justify-content: center;
  width: 52px; height: 52px;
  border-radius: var(--radius-full);
  border: none;
  background: var(--color-primary);
  color: var(--color-on-primary);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: background var(--transition), transform var(--transition);
}
.fab:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.fab:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }
.fab svg { width: 22px; height: 22px; }

/* ---------- Modals ---------- */
.hidden { display: none !important; }
.modal {
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, 0.4);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  padding: 16px;
}
.modal-card {
  background: var(--color-bg);
  padding: 28px;
  border-radius: var(--radius-lg);
  min-width: 380px; max-width: 520px; width: 100%;
  max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-modal);
  border: 1px solid var(--color-border);
}
.modal-card h2 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-fg);
}
.modal-card .muted {
  color: var(--color-fg-muted);
  font-size: 13px;
  margin: 0 0 20px;
}

.identity-buttons { display: flex; gap: 12px; margin-top: 8px; }
.identity-buttons button {
  flex: 1;
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 500;
  background: var(--color-bg);
  color: var(--color-fg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition), border-color var(--transition);
}
.identity-buttons button:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ---------- Form ---------- */
.field { display: block; margin-bottom: 14px; }
.field > span {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.field input, .field textarea, .field select {
  width: 100%;
  padding: 9px 12px;
  background: var(--color-bg);
  color: var(--color-fg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
.field input[type="file"] { padding: 6px; font-size: 13px; }
.field textarea { resize: vertical; min-height: 70px; }

.checkbox-field {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 14px;
  font-size: 14px;
  color: var(--color-fg);
  cursor: pointer;
}
.checkbox-field input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.row { display: flex; gap: 12px; }
.row .field { flex: 1; }

.form-footer {
  display: flex; gap: 8px; justify-content: flex-end;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.btn-ghost {
  background: var(--color-bg);
  color: var(--color-fg);
  border-color: var(--color-border);
}
.btn-ghost:hover { background: var(--color-bg-subtle); border-color: var(--color-border-hover); }
.btn-danger {
  background: var(--color-bg);
  color: var(--color-danger);
  border-color: var(--color-border);
  margin-right: auto;
}
.btn-danger:hover { background: var(--color-danger); color: var(--color-on-primary); border-color: var(--color-danger); }

.error {
  color: var(--color-danger);
  font-size: 13px;
  margin-top: 10px;
  padding: 10px 12px;
  background: #FEF2F2;
  border: 1px solid #FECACA;
  border-radius: var(--radius-md);
}

/* ---------- Toasts ---------- */
.toast-container {
  position: fixed; bottom: 24px; left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex; flex-direction: column; gap: 8px;
}
.toast {
  padding: 10px 16px;
  background: var(--color-fg);
  color: var(--color-bg);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
}
.toast.error { background: var(--color-danger); color: var(--color-on-primary); }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  .fab:hover { transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .topbar { padding: 12px 16px; }
  main#calendar { padding: 16px; }
  .legend { padding: 0 16px 16px; }
  .fab { right: 16px; bottom: 16px; }
  .modal-card { min-width: 0; padding: 20px; }
  .row { flex-direction: column; gap: 0; }
}