/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
  user-select: none;
  border: 1.5px solid transparent;
}

.btn:active:not(:disabled) {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

/* Variants */
.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-secondary);
  border-color: var(--color-border-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.btn-danger {
  background: var(--color-danger);
  color: #FFFFFF;
  border-color: var(--color-danger);
}
.btn-danger:hover:not(:disabled) {
  background: #DC2626;
  box-shadow: 0 0 0 3px var(--color-danger-bg);
}

.btn-danger-ghost {
  background: transparent;
  color: var(--color-danger);
  border-color: transparent;
}
.btn-danger-ghost:hover:not(:disabled) {
  background: var(--color-danger-bg);
  border-color: var(--color-danger);
}

/* Sizes */
.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
}
.btn-sm svg {
  width: 13px;
  height: 13px;
}

.btn-lg {
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
}
.btn-lg svg {
  width: 18px;
  height: 18px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-lg);
}

.btn-icon-sm {
  width: 28px;
  height: 28px;
  padding: 0;
}

/* ── Today / nav button ───────────────────────────────────────── */
.btn-today {
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface);
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}
.btn-today:hover {
  background: var(--color-bg-secondary);
  border-color: var(--color-border-hover);
}

.btn-nav {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.btn-nav:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}
.btn-nav svg {
  width: 18px;
  height: 18px;
}

/* ── Search bar ───────────────────────────────────────────────── */
.search-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-3);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  height: 36px;
  width: 100%;
  max-width: 380px;
}

.search-bar:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.search-bar svg {
  width: 15px;
  height: 15px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  outline: none;
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.search-clear {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.search-clear:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}
.search-clear svg {
  width: 12px;
  height: 12px;
}

/* ── Toast ────────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
  pointer-events: all;
  max-width: 360px;
  animation: toastIn var(--duration-slow) var(--ease-spring);
  position: relative;
  overflow: hidden;
}

.toast.removing {
  animation: toastOut var(--duration-base) var(--ease-default) forwards;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(24px) scale(0.95); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(0) scale(1); max-height: 80px; }
  to   { opacity: 0; transform: translateX(24px) scale(0.95); max-height: 0; }
}

.toast-icon {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.toast-icon svg { width: 12px; height: 12px; }

.toast.success .toast-icon { background: var(--color-success-bg); color: var(--color-success); }
.toast.error   .toast-icon { background: var(--color-danger-bg);  color: var(--color-danger); }
.toast.warning .toast-icon { background: var(--color-warning-bg); color: var(--color-warning); }
.toast.info    .toast-icon { background: var(--color-info-bg);    color: var(--color-info); }

.toast-message {
  flex: 1;
  line-height: 1.4;
}

.toast-close {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: background-color var(--transition-fast);
  cursor: pointer;
}
.toast-close:hover {
  background: var(--color-bg-secondary);
}
.toast-close svg { width: 11px; height: 11px; }

.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: currentColor;
  opacity: 0.2;
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  animation: toastProgress linear forwards;
}

@keyframes toastProgress {
  from { width: 100%; }
  to   { width: 0%; }
}

/* ── Statistics panel ─────────────────────────────────────────── */
.stat-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.stat-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}

.stat-value.success { color: var(--color-success); }
.stat-value.danger  { color: var(--color-danger); }
.stat-value.primary { color: var(--color-primary); }

.stat-sub {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

/* ── Progress bar ─────────────────────────────────────────────── */
.progress-bar {
  height: 8px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-success);
  border-radius: var(--radius-full);
  transition: width var(--duration-slow) var(--ease-default);
}

/* ── Search results badge ─────────────────────────────────────── */
.search-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-2);
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  white-space: nowrap;
}

/* ── Empty state ──────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8);
  text-align: center;
  color: var(--color-text-muted);
}

.empty-state svg {
  width: 40px;
  height: 40px;
  opacity: 0.4;
}

.empty-state p {
  font-size: var(--font-size-sm);
}

/* ── Separator ────────────────────────────────────────────────── */
.separator {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-2) 0;
}

/* ── Badge ────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-danger  { background: var(--color-danger-bg);  color: var(--color-danger); }

/* ── Keyboard shortcut ────────────────────────────────────────── */
.kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1px var(--space-1);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ── Divider ──────────────────────────────────────────────────── */
.divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* ── File drop zone ───────────────────────────────────────────── */
.drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-xl);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.drop-zone:hover,
.drop-zone.dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.drop-zone svg {
  width: 32px;
  height: 32px;
  color: var(--color-text-muted);
}

.drop-zone p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.drop-zone strong {
  color: var(--color-primary);
}

/* ── Notification permission badge ───────────────────────────── */
.notif-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  border: 1.5px solid transparent;
  white-space: nowrap;
}

.notif-badge:hover {
  filter: brightness(0.92);
  transform: scale(0.98);
}

.notif-badge-default {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-color: var(--color-warning);
}

.notif-badge-denied {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-color: var(--color-danger);
}

.notif-badge-granted {
  background: var(--color-success-bg);
  color: var(--color-success);
  border-color: var(--color-success);
}

/* ── Notification hint (inside modal) ────────────────────────── */
.notif-hint {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  border: 1px solid var(--color-warning);
}

.notif-hint::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23D97706' stroke-width='2'%3E%3Cpath d='M10.29 3.86 1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0Z'/%3E%3Cpath d='M12 9v4m0 4h.01'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  flex-shrink: 0;
}

/* ── Task card bell + time badge ──────────────────────────────── */
.task-card-time {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 0.6rem;
  font-weight: 700;
  opacity: 0.8;
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: 0.03em;
  background: rgba(0,0,0,0.12);
  padding: 1px 4px 1px 3px;
  border-radius: 3px;
  line-height: 1.4;
}

.task-card-time-icon {
  width: 8px;
  height: 8px;
  flex-shrink: 0;
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 640px) {
  .toast-container {
    bottom: var(--space-4);
    right: var(--space-4);
    left: var(--space-4);
  }
  .toast {
    max-width: 100%;
  }
}