/* FamilyCal — Linear Dark Pro variant
 * Palette: electric violet #A78BFA + near-black canvas
 * Type: Inter (UI) + JetBrains Mono (dates/numbers)
 */

/* ========== Google Fonts feature settings override ========== */
@supports (font-variation-settings: normal) {
  html {
    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  }
}

/* ========== Design tokens ========== */
:root {
  --color-bg:          #0A0B0F;
  --color-surface:     #16181D;
  --color-surface-hi:  #1F2228;
  --color-text:        #F2F4F7;
  --color-text-muted:  #9CA3AF;
  --color-text-dim:    #6B7280;
  --color-border:      #2A2E36;
  --color-border-hi:   #3F434C;
  --color-accent:      #A78BFA;
  --color-accent-hi:   #C4B5FD;
  --color-accent-bg:   rgba(167, 139, 250, 0.12);
  --color-danger:      #F87171;
  --color-danger-bg:   rgba(248, 113, 113, 0.12);
  --color-success:     #34D399;

  /* Offline banner amber */
  --color-warn-bg:     rgba(245, 158, 11, 0.10);
  --color-warn-text:   #FCD34D;
  --color-warn-border: rgba(245, 158, 11, 0.25);

  --radius-sm:  4px;
  --radius-md:  6px;
  --radius-lg:  8px;
  --radius-full: 999px;

  --transition: 120ms ease-out;

  --shadow-modal: 0 24px 64px -16px rgba(0, 0, 0, 0.72), 0 0 0 1px var(--color-border);
  --shadow-fab:   0 0 0 0 rgba(167, 139, 250, 0);
  --shadow-fab-hover: 0 8px 24px -4px rgba(124, 58, 237, 0.45);
}

/* ========== Reset / base ========== */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========== Topbar ========== */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 32px;
  height: 52px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
}

.brand-icon {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.brand h1 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--color-text);
  text-shadow: 0 0 20px rgba(167, 139, 250, 0.15);
}

/* Identity badge — command-palette feel */
.identity-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 8px 5px 10px;
  background: var(--color-surface-hi);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  font-family: 'Inter', sans-serif;
  transition: border-color var(--transition);
}
.identity-badge:hover { border-color: var(--color-border-hi); }

.identity-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

#identityLabel {
  font-weight: 500;
  color: var(--color-text);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  background: transparent;
  color: var(--color-text-dim);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  padding: 0;
}
.icon-btn:hover {
  background: var(--color-border);
  color: var(--color-text);
}
.icon-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
  box-shadow: 0 0 0 4px rgba(167, 139, 250, 0.12);
}
.icon-btn svg { width: 14px; height: 14px; }

/* ========== Offline banner ========== */
.banner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 32px;
  background: var(--color-warn-bg);
  color: var(--color-warn-text);
  font-size: 13px;
  font-weight: 500;
  border-bottom: 1px solid var(--color-warn-border);
}
.banner svg { width: 15px; height: 15px; flex-shrink: 0; }

/* ========== Calendar area ========== */
main#calendar {
  padding: 24px 32px;
  background: var(--color-bg);
}

/* FullCalendar overrides */
.fc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
}

/* Toolbar title */
.fc-toolbar-title {
  color: var(--color-text) !important;
  font-size: 17px !important;
  font-weight: 600 !important;
  letter-spacing: -0.015em !important;
}

/* Column headers: SUN MON ... */
.fc-col-header-cell-cushion {
  color: var(--color-text-dim) !important;
  font-weight: 600 !important;
  font-size: 11px !important;
  text-transform: uppercase !important;
  letter-spacing: 0.06em !important;
  padding: 10px 4px !important;
  text-decoration: none !important;
}

/* Day numbers */
.fc-daygrid-day-number {
  color: var(--color-text-muted) !important;
  font-weight: 500 !important;
  font-size: 12px !important;
  font-family: 'JetBrains Mono', 'Courier New', monospace !important;
  padding: 8px !important;
  text-decoration: none !important;
}

/* Today highlight */
.fc-day-today {
  background: var(--color-accent-bg) !important;
}
.fc-day-today .fc-daygrid-day-number {
  color: var(--color-accent) !important;
  font-weight: 700 !important;
}

/* Day cell hover */
.fc-daygrid-day:hover {
  background: var(--color-surface-hi) !important;
}

/* Header/nav buttons */
.fc-button-primary {
  background: transparent !important;
  border: 1px solid var(--color-border) !important;
  color: var(--color-text-muted) !important;
  font-weight: 500 !important;
  font-size: 12px !important;
  padding: 5px 11px !important;
  border-radius: var(--radius-md) !important;
  box-shadow: none !important;
  text-transform: capitalize !important;
  font-family: 'Inter', sans-serif !important;
  transition: background var(--transition), border-color var(--transition), color var(--transition) !important;
}
.fc-button-primary:hover {
  background: var(--color-surface-hi) !important;
  border-color: var(--color-border-hi) !important;
  color: var(--color-text) !important;
}
.fc-button-primary:focus {
  box-shadow: 0 0 0 2px rgba(167, 139, 250, 0.20) !important;
  outline: none !important;
}
.fc-button-primary:not(:disabled).fc-button-active,
.fc-button-active {
  background: var(--color-accent) !important;
  border-color: var(--color-accent) !important;
  color: #0A0B0F !important;
  font-weight: 600 !important;
}
.fc-button-primary:disabled {
  opacity: 0.35 !important;
  cursor: not-allowed !important;
}

/* Prev/next icon buttons */
.fc-prev-button, .fc-next-button {
  padding: 5px 8px !important;
}
.fc-prev-button .fc-icon, .fc-next-button .fc-icon {
  font-size: 14px !important;
}

/* Event chips */
.fc-event {
  border: none !important;
  border-left: 3px solid currentColor !important;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0 !important;
  background: var(--color-surface-hi) !important;
  padding: 2px 6px !important;
  font-size: 11.5px !important;
  font-weight: 500 !important;
  cursor: pointer !important;
  transition: opacity var(--transition), background var(--transition) !important;
}
.fc-event:hover {
  background: var(--color-border) !important;
  opacity: 1 !important;
}
.fc-event .fc-event-title {
  color: var(--color-text) !important;
  font-family: 'Inter', sans-serif !important;
}
.fc-event .fc-event-time {
  color: var(--color-text-muted) !important;
  font-family: 'JetBrains Mono', monospace !important;
  font-size: 10.5px !important;
  font-weight: 400 !important;
}
.fc-daygrid-event-dot { display: none !important; }

/* Grid lines */
.fc-scrollgrid,
.fc-scrollgrid-section > * {
  border-color: var(--color-border) !important;
}
.fc-col-header-cell,
.fc-daygrid-day {
  border-color: var(--color-border) !important;
}
.fc-scrollgrid-sync-table td {
  border-color: var(--color-border) !important;
}

/* More link */
.fc-more-link {
  color: var(--color-accent) !important;
  font-size: 11px !important;
  font-weight: 600 !important;
}
.fc-more-link:hover { color: var(--color-accent-hi) !important; }

/* Popover ("+X more" expanded list) */
.fc-popover {
  background: var(--color-surface) !important;
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: 0 16px 40px -8px rgba(0,0,0,0.6) !important;
}
.fc-popover-title {
  background: var(--color-surface-hi) !important;
  color: var(--color-text-muted) !important;
  font-size: 11px !important;
  font-weight: 600 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.05em !important;
  border-bottom: 1px solid var(--color-border) !important;
  padding: 8px 12px !important;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
}
.fc-popover-close {
  color: var(--color-text-dim) !important;
}

/* ========== Legend ========== */
.legend {
  display: flex;
  gap: 6px;
  padding: 0 32px 24px;
  flex-wrap: wrap;
  background: var(--color-bg);
}
.legend .chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: default;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.legend .chip:hover {
  background: var(--color-surface-hi);
  border-color: var(--color-border-hi);
  color: var(--color-text);
}
.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: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  border: none;
  background: linear-gradient(135deg, #A78BFA 0%, #7C3AED 100%);
  color: #ffffff;
  cursor: pointer;
  box-shadow: var(--shadow-fab);
  transition: box-shadow var(--transition), transform var(--transition);
  z-index: 50;
}
.fab:hover {
  box-shadow: var(--shadow-fab-hover);
  transform: translateY(-1px);
}
.fab:active {
  transform: scale(0.97) translateY(0);
}
.fab:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 5px rgba(167, 139, 250, 0.15);
}
.fab svg { width: 20px; height: 20px; }

/* ========== Utility ========== */
.hidden { display: none !important; }

/* ========== Modals ========== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(10, 11, 15, 0.70);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}

.modal-card {
  background: var(--color-surface);
  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);
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}
.modal-card::-webkit-scrollbar { width: 5px; }
.modal-card::-webkit-scrollbar-track { background: transparent; }
.modal-card::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

.modal-card h2 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--color-text);
}
.modal-card .muted {
  color: var(--color-text-muted);
  font-size: 13px;
  margin: 0 0 20px;
}

/* Identity buttons */
.identity-buttons {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}
.identity-buttons button {
  flex: 1;
  padding: 13px 16px;
  font-size: 14px;
  font-weight: 500;
  background: var(--color-surface-hi);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.identity-buttons button:hover {
  background: var(--color-accent-bg);
  border-color: var(--color-accent);
  color: var(--color-accent-hi);
}
.identity-buttons button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(167, 139, 250, 0.12);
}

/* ========== Form ========== */
.field {
  display: block;
  margin-bottom: 14px;
}
.field > span {
  display: block;
  margin-bottom: 5px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 8px 11px;
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.20);
}
.field input::placeholder,
.field textarea::placeholder {
  color: var(--color-text-dim);
}
/* datetime-local calendar icon color tweak */
.field input[type="datetime-local"] {
  color-scheme: dark;
}
.field input[type="file"] {
  padding: 6px 8px;
  font-size: 12px;
  color: var(--color-text-muted);
  cursor: pointer;
}
.field input[type="file"]::-webkit-file-upload-button {
  background: var(--color-surface-hi);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  margin-right: 8px;
  transition: background var(--transition);
}
.field input[type="file"]::-webkit-file-upload-button:hover {
  background: var(--color-border);
  color: var(--color-text);
}
.field textarea {
  resize: vertical;
  min-height: 70px;
}

/* Select option colors */
.field select option {
  background: var(--color-surface);
  color: var(--color-text);
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--color-text);
  cursor: pointer;
}
.checkbox-field input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--color-accent);
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.row { display: flex; gap: 10px; }
.row .field { flex: 1; }

/* Form footer */
.form-footer {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 15px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(167, 139, 250, 0.12);
}

.btn-primary {
  background: var(--color-accent);
  color: #0A0B0F;
  border-color: var(--color-accent);
  font-weight: 600;
}
.btn-primary:hover {
  background: var(--color-accent-hi);
  border-color: var(--color-accent-hi);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-surface-hi);
  border-color: var(--color-border-hi);
  color: var(--color-text);
}

.btn-danger {
  background: transparent;
  color: var(--color-danger);
  border-color: var(--color-border);
  margin-right: auto;
}
.btn-danger:hover {
  background: var(--color-danger-bg);
  border-color: var(--color-danger);
}

/* Form error */
.error {
  color: var(--color-danger);
  font-size: 12px;
  margin-top: 10px;
  padding: 9px 12px;
  background: var(--color-danger-bg);
  border: 1px solid rgba(248, 113, 113, 0.25);
  border-radius: var(--radius-md);
}

/* Muted helper text */
.muted {
  color: var(--color-text-muted);
  font-size: 12px;
}
#existingAttachment {
  margin-bottom: 10px;
  font-size: 12px;
}

/* ========== Toasts ========== */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  padding: 10px 16px;
  background: var(--color-surface-hi);
  color: var(--color-text);
  border: 1px solid var(--color-border-hi);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 8px 24px -4px rgba(0,0,0,0.5);
  animation: toast-in 180ms ease-out both;
  pointer-events: auto;
}
.toast.error {
  background: var(--color-danger-bg);
  border-color: rgba(248, 113, 113, 0.30);
  color: var(--color-danger);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .topbar {
    padding: 0 16px;
  }
  main#calendar {
    padding: 12px 16px;
  }
  .legend {
    padding: 0 16px 16px;
    gap: 5px;
  }
  .fab {
    right: 16px;
    bottom: 20px;
    width: 46px;
    height: 46px;
  }
  .modal {
    align-items: flex-end;
    padding: 0;
  }
  .modal-card {
    min-width: 0;
    max-width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 20px 16px 32px;
    max-height: 92vh;
  }
  .row {
    flex-direction: column;
    gap: 0;
  }
  .form-footer {
    flex-wrap: wrap;
  }
  .btn-danger {
    margin-right: 0;
    order: 3;
    width: 100%;
  }
  .fc {
    padding: 8px 10px;
  }
  .fc-toolbar-title {
    font-size: 14px !important;
  }
  .fc-toolbar.fc-header-toolbar {
    flex-wrap: wrap;
    gap: 6px;
  }
}

/* ========== Focus visible global fallback ========== */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
/* Suppress :focus for mouse users on buttons that have custom hover */
.btn:focus:not(:focus-visible),
.icon-btn:focus:not(:focus-visible),
.fab:focus:not(:focus-visible) {
  outline: none;
  box-shadow: none;
}