/* Orchestra Manager - Design System CSS
   Preserves the exact oklch color tokens and Tailwind v4 design system
   from the original React frontend. */

/* =========================================================
   CSS Custom Properties (Light & Dark themes)
   ========================================================= */
:root {
  --radius: 0.625rem;
  --background: oklch(0.98 0.005 220);
  --foreground: oklch(0.15 0.01 220);
  --card: oklch(0.98 0.005 220);
  --card-foreground: oklch(0.15 0.01 220);
  --popover: oklch(0.98 0.005 220);
  --popover-foreground: oklch(0.15 0.01 220);
  --primary: oklch(0.65 0.12 75);
  --primary-foreground: oklch(0.92 0.02 65);
  --secondary: oklch(0.7 0.01 220);
  --secondary-foreground: oklch(0.15 0.01 220);
  --muted: oklch(0.7 0.01 220);
  --muted-foreground: oklch(0.35 0.01 220);
  --accent: oklch(0.45 0.15 25);
  --accent-foreground: oklch(0.92 0.02 65);
  --destructive: oklch(0.45 0.15 25);
  --border: oklch(0.85 0.01 220);
  --input: oklch(0.85 0.01 220);
  --ring: oklch(0.65 0.12 75);
  --chart-1: oklch(0.65 0.12 75);
  --chart-2: oklch(0.45 0.15 25);
  --chart-3: oklch(0.15 0.01 220);
  --chart-4: oklch(0.8 0.03 65);
  --chart-5: oklch(0.7 0.01 220);
  --sidebar: oklch(0.95 0.01 65);
  --sidebar-foreground: oklch(0.15 0.01 220);
  --sidebar-primary: oklch(0.65 0.12 75);
  --sidebar-primary-foreground: oklch(0.92 0.02 65);
  --sidebar-accent: oklch(0.88 0.02 65);
  --sidebar-accent-foreground: oklch(0.15 0.01 220);
  --sidebar-border: oklch(0.85 0.01 220);
  --sidebar-ring: oklch(0.65 0.12 75);
}

.dark {
  --background: oklch(0.15 0.01 220);
  --foreground: oklch(0.92 0.02 65);
  --card: oklch(0.18 0.01 220);
  --card-foreground: oklch(0.92 0.02 65);
  --popover: oklch(0.18 0.01 220);
  --popover-foreground: oklch(0.92 0.02 65);
  --primary: oklch(0.65 0.12 75);
  --primary-foreground: oklch(0.15 0.01 220);
  --secondary: oklch(0.5 0.01 220);
  --secondary-foreground: oklch(0.92 0.02 65);
  --muted: oklch(0.5 0.01 220);
  --muted-foreground: oklch(0.7 0.01 220);
  --accent: oklch(0.45 0.15 25);
  --accent-foreground: oklch(0.92 0.02 65);
  --destructive: oklch(0.45 0.15 25);
  --border: oklch(0.25 0.01 220);
  --input: oklch(0.25 0.01 220);
  --ring: oklch(0.65 0.12 75);
  --chart-1: oklch(0.65 0.12 75);
  --chart-2: oklch(0.45 0.15 25);
  --chart-3: oklch(0.8 0.03 65);
  --chart-4: oklch(0.7 0.01 220);
  --chart-5: oklch(0.35 0.01 220);
  --sidebar: oklch(0.18 0.01 220);
  --sidebar-foreground: oklch(0.92 0.02 65);
  --sidebar-primary: oklch(0.65 0.12 75);
  --sidebar-primary-foreground: oklch(0.15 0.01 220);
  --sidebar-accent: oklch(0.25 0.01 220);
  --sidebar-accent-foreground: oklch(0.92 0.02 65);
  --sidebar-border: oklch(0.25 0.01 220);
  --sidebar-ring: oklch(0.65 0.12 75);
}

/* =========================================================
   Base Styles
   ========================================================= */
html {
  transition: color-scheme 0.2s ease;
}

* {
  transition:
    background-color 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
  border-color: var(--border);
}

body {
  background-color: var(--background);
  color: var(--foreground);
  font-family: 'Roboto', ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
}

/* =========================================================
   Component Classes
   ========================================================= */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  line-height: 1.25rem;
}

.btn:disabled {
  opacity: 0.5;
  pointer-events: none;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--primary-foreground);
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  background-color: var(--secondary);
  color: var(--secondary-foreground);
}

.btn-secondary:hover {
  opacity: 0.8;
}

.btn-outline {
  border-color: var(--input);
  background-color: transparent;
  color: var(--foreground);
}

.btn-outline:hover {
  background-color: var(--accent);
  color: var(--accent-foreground);
}

.btn-ghost {
  background-color: transparent;
  color: var(--foreground);
}

.btn-ghost:hover {
  background-color: var(--accent);
  color: var(--accent-foreground);
}

.btn-destructive {
  background-color: var(--destructive);
  color: var(--accent-foreground);
}

.btn-destructive:hover {
  opacity: 0.9;
}

.btn-sm {
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
}

.btn-lg {
  padding: 0.625rem 1.25rem;
  font-size: 1rem;
}

.btn-icon {
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
}

.btn-icon-sm {
  width: 2rem;
  height: 2rem;
  padding: 0;
}

/* Cards */
.card {
  background-color: var(--card);
  color: var(--card-foreground);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}

.card-header {
  padding: 1.5rem 1.5rem 0;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
}

.card-content {
  padding: 1.5rem;
}

/* Form controls */
.form-input {
  display: flex;
  height: 2.25rem;
  width: 100%;
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid var(--input);
  background-color: transparent;
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
  color: var(--foreground);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-input:focus {
  border-color: var(--ring);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--ring) 50%, transparent);
}

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

.form-input::placeholder {
  color: var(--muted-foreground);
}

.form-select {
  display: flex;
  height: 2.25rem;
  width: 100%;
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid var(--input);
  background-color: transparent;
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
  color: var(--foreground);
  outline: none;
  appearance: auto;
  cursor: pointer;
}

.form-select:focus {
  border-color: var(--ring);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--ring) 50%, transparent);
}

.form-textarea {
  display: flex;
  width: 100%;
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid var(--input);
  background-color: transparent;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--foreground);
  outline: none;
  min-height: 5rem;
  resize: vertical;
}

.form-textarea:focus {
  border-color: var(--ring);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--ring) 50%, transparent);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.375rem;
  color: var(--foreground);
}

.form-checkbox {
  width: 1rem;
  height: 1rem;
  border-radius: 0.25rem;
  border: 1px solid var(--primary);
  accent-color: var(--primary);
}

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th {
  height: 2.5rem;
  padding: 0 0.75rem;
  text-align: left;
  font-weight: 500;
  color: var(--muted-foreground);
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table th.sortable {
  cursor: pointer;
  user-select: none;
}

.data-table th.sortable:hover {
  background-color: color-mix(in oklch, var(--muted) 50%, transparent);
}

.data-table tbody tr:hover {
  background-color: color-mix(in oklch, var(--muted) 50%, transparent);
}

.data-table tbody tr.clickable {
  cursor: pointer;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 9999px;
  padding: 0.125rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.25rem;
  white-space: nowrap;
}

.badge-default {
  background-color: var(--primary);
  color: var(--primary-foreground);
}

.badge-secondary {
  background-color: var(--secondary);
  color: var(--secondary-foreground);
}

.badge-outline {
  border: 1px solid var(--border);
  color: var(--foreground);
}

.badge-destructive {
  background-color: var(--destructive);
  color: var(--accent-foreground);
}

/* Sidebar */
.sidebar {
  background-color: var(--sidebar);
  color: var(--sidebar-foreground);
  border-right: 1px solid var(--sidebar-border);
  width: 16rem;
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 40;
}

.sidebar-header {
  padding: 1rem;
  border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.sidebar-footer {
  padding: 0.5rem;
  border-top: 1px solid var(--sidebar-border);
}

.sidebar-group-label {
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted-foreground);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.sidebar-menu-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border-radius: calc(var(--radius) - 2px);
  font-size: 0.875rem;
  color: var(--sidebar-foreground);
  text-decoration: none;
  transition: background-color 0.15s, color 0.15s;
}

.sidebar-menu-item:hover {
  background-color: var(--sidebar-accent);
  color: var(--sidebar-accent-foreground);
}

.sidebar-menu-item.active {
  background-color: var(--sidebar-primary);
  color: var(--sidebar-primary-foreground);
}

.sidebar-menu-item svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.sidebar-inset {
  margin-left: 16rem;
  min-height: 100vh;
}

/* Mobile sidebar */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-inset {
    margin-left: 0;
  }

  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgb(0 0 0 / 0.5);
    z-index: 30;
  }

  .sidebar-backdrop.open {
    display: block;
  }
}

/* User avatar */
.avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  background-color: var(--muted);
  color: var(--muted-foreground);
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

/* Modal / Dialog */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgb(0 0 0 / 0.5);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  padding: 1.5rem;
  width: 100%;
  max-width: 28rem;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}

.modal-header {
  margin-bottom: 1rem;
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 600;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

/* Tabs */
.tabs-list {
  display: grid;
  width: 100%;
  border-radius: var(--radius);
  background-color: var(--muted);
  padding: 0.25rem;
}

.tabs-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: calc(var(--radius) - 4px);
  color: var(--muted-foreground);
  cursor: pointer;
  background: none;
  border: none;
  transition: all 0.15s;
}

.tabs-trigger:hover {
  color: var(--foreground);
}

.tabs-trigger.active {
  background-color: var(--background);
  color: var(--foreground);
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}

/* Separator */
.separator {
  height: 1px;
  width: 100%;
  background-color: var(--border);
}

/* Toast notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background-color: var(--card);
  color: var(--card-foreground);
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  font-size: 0.875rem;
  min-width: 15rem;
  animation: toast-in 0.3s ease;
}

.toast-success {
  border-color: oklch(0.72 0.17 142);
  background-color: oklch(0.95 0.05 142);
  color: oklch(0.3 0.1 142);
}

.dark .toast-success {
  background-color: oklch(0.25 0.05 142);
  color: oklch(0.85 0.05 142);
}

.toast-error {
  border-color: var(--destructive);
  background-color: oklch(0.95 0.05 25);
  color: oklch(0.3 0.1 25);
}

.dark .toast-error {
  background-color: oklch(0.25 0.05 25);
  color: oklch(0.85 0.05 25);
}

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

/* Calendar */
.cal-day {
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 4px);
  padding: 0.25rem;
}

.cal-day-today {
  background-color: color-mix(in oklch, var(--primary) 10%, transparent);
  border-color: var(--primary);
}

.cal-day-past {
  opacity: 0.5;
}

.cal-event {
  font-size: 0.625rem;
  border-radius: 0.25rem;
  padding: 0 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.125rem;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cal-event:hover {
  opacity: 0.8;
}

.cal-event-present {
  background-color: oklch(0.92 0.05 230);
}

.dark .cal-event-present {
  background-color: oklch(0.25 0.05 230);
}

.cal-event-absent {
  background-color: oklch(0.92 0.05 25);
}

.dark .cal-event-absent {
  background-color: oklch(0.25 0.05 25);
}

/* Collapsible */
.collapsible-content {
  overflow: hidden;
  transition: max-height 0.3s ease;
}

/* Dropdown */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  position: absolute;
  z-index: 50;
  min-width: 10rem;
  background-color: var(--popover);
  color: var(--popover-foreground);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  padding: 0.25rem;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.5rem;
  font-size: 0.875rem;
  border-radius: calc(var(--radius) - 4px);
  cursor: pointer;
  color: var(--popover-foreground);
  transition: background-color 0.15s;
}

.dropdown-item:hover {
  background-color: var(--accent);
  color: var(--accent-foreground);
}

.dropdown-separator {
  height: 1px;
  background-color: var(--border);
  margin: 0.25rem -0.25rem;
}

/* Loading spinner */
.spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* HTMX indicator styles */
.htmx-indicator {
  display: none;
}

.htmx-request .htmx-indicator {
  display: inline-flex;
}

.htmx-request.htmx-indicator {
  display: inline-flex;
}

/* Transition for HTMX swaps */
.htmx-swapping {
  opacity: 0.5;
  transition: opacity 0.2s ease;
}