/* shadcn/ui inspired design tokens */
:root {
  --background: oklch(1 0 0);
  --foreground: oklch(0.145 0 0);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.145 0 0);
  --primary: oklch(0.205 0 0);
  --primary-foreground: oklch(0.985 0 0);
  --secondary: oklch(0.97 0 0);
  --secondary-foreground: oklch(0.205 0 0);
  --muted: oklch(0.97 0 0);
  --muted-foreground: oklch(0.556 0 0);
  --accent: oklch(0.97 0 0);
  --accent-foreground: oklch(0.205 0 0);
  --destructive: oklch(0.704 0.191 22.216);
  --border: oklch(0.92 0 0);
  --input: oklch(0.92 0 0);
  --ring: oklch(0.705 0 0);
  --radius: 0.625rem;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  min-height: 100vh;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Header */
.header {
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header h1 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.header .subtitle {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* Card */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: box-shadow 0.15s;
}

.card:hover {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.card-description {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  margin-top: 0.25rem;
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: calc(var(--radius) * 10);
  background: var(--secondary);
  color: var(--secondary-foreground);
}

/* Select / Dropdown */
.select-wrapper {
  position: relative;
  display: inline-block;
}

.select {
  appearance: none;
  background: var(--background);
  border: 1px solid var(--input);
  border-radius: calc(var(--radius) * 0.8);
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--foreground);
  cursor: pointer;
  min-width: 160px;
  outline: none;
  transition: border-color 0.15s;
}

.select:focus {
  border-color: var(--ring);
  box-shadow: 0 0 0 2px oklch(0.705 0 0 / 0.2);
}

.select-wrapper::after {
  content: "";
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid var(--muted-foreground);
  pointer-events: none;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--card);
  flex-wrap: wrap;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toolbar-label {
  font-size: 0.8125rem;
  color: var(--muted-foreground);
  font-weight: 500;
  white-space: nowrap;
}

.toolbar-separator {
  width: 1px;
  height: 1.5rem;
  background: var(--border);
}

/* Meta info bar */
.meta-bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.5rem 1.5rem;
  background: var(--muted);
  font-size: 0.8125rem;
  color: var(--muted-foreground);
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.meta-item strong {
  font-weight: 500;
  color: var(--foreground);
}

/* Viewer iframe */
.doc-frame {
  width: 100%;
  border: none;
  flex: 1;
}

.viewer-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--muted-foreground);
}

.empty-state h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}

/* Link reset */
a {
  color: inherit;
  text-decoration: none;
}
a.card {
  display: block;
}

/* ===== Auth Components ===== */

/* Login page layout */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.login-card h1 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  text-align: center;
}

.login-card .subtitle {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  text-align: center;
  margin-top: 0.25rem;
  margin-bottom: 1.5rem;
}

/* Form */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.375rem;
}

.form-group input[type="text"],
.form-group input[type="password"] {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  border: 1px solid var(--input);
  border-radius: calc(var(--radius) * 0.8);
  background: var(--background);
  color: var(--foreground);
  outline: none;
  transition: border-color 0.15s;
}

.form-group input:focus {
  border-color: var(--ring);
  box-shadow: 0 0 0 2px oklch(0.705 0 0 / 0.2);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: calc(var(--radius) * 0.8);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  line-height: 1.25rem;
}

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

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

.btn-primary:hover:not(:disabled) {
  opacity: 0.9;
}

.btn-full {
  width: 100%;
}

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

.btn-outline:hover:not(:disabled) {
  background: var(--accent);
}

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

.btn-destructive:hover:not(:disabled) {
  opacity: 0.9;
}

.btn-sm {
  padding: 0.25rem 0.625rem;
  font-size: 0.8125rem;
}

/* Alert */
.alert {
  padding: 0.75rem 1rem;
  border-radius: calc(var(--radius) * 0.8);
  font-size: 0.875rem;
  margin-bottom: 1rem;
  display: none;
}

.alert-error {
  background: oklch(0.95 0.05 22);
  color: var(--destructive);
  border: 1px solid oklch(0.9 0.08 22);
}

.alert-success {
  background: oklch(0.95 0.05 145);
  color: oklch(0.4 0.1 145);
  border: 1px solid oklch(0.9 0.08 145);
}

/* User menu */
.user-menu {
  position: relative;
  margin-left: auto;
}

.user-menu-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--foreground);
  background: var(--background);
  border: 1px solid var(--input);
  border-radius: calc(var(--radius) * 0.8);
  cursor: pointer;
  transition: background 0.15s;
}

.user-menu-btn:hover {
  background: var(--accent);
}

.dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  min-width: 160px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  z-index: 50;
  padding: 0.25rem;
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--foreground);
  background: none;
  border: none;
  border-radius: calc(var(--radius) * 0.6);
  cursor: pointer;
  text-align: left;
  text-decoration: none;
}

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

.dropdown-item-danger {
  color: var(--destructive);
}

.dropdown-separator {
  height: 1px;
  background: var(--border);
  margin: 0.25rem 0;
}

/* Table */
.table-wrapper {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

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

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

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

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

.table .actions {
  display: flex;
  gap: 0.5rem;
}

/* Badge variants */
.badge-success {
  background: oklch(0.95 0.05 145);
  color: oklch(0.4 0.1 145);
}

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

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.modal h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

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

/* Checkbox */
.checkbox-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.checkbox-group input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--primary);
}

.checkbox-group label {
  font-size: 0.875rem;
  font-weight: 400;
}

/* Page header with user menu */
.page-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.page-actions h2 {
  font-size: 1.25rem;
  font-weight: 600;
}