:root {
  --color-primary: #3A4A5E;
  --color-primary-light: #5A7085;
  --color-primary-dark: #253140;
  --color-secondary: #C9A04D;
  --color-secondary-light: #DCC07A;
  --color-secondary-dark: #A68832;
  --color-surface: #ffffff;
  --color-surface-raised: #f8f9fa;
  --color-surface-sunken: #e9ecef;
  --color-text: #212529;
  --color-text-light: #6c757d;
  --color-text-inverse: #ffffff;
  --color-border: #dee2e6;
  --color-success: #28a745;
  --color-warning: #ffc107;
  --color-error: #dc3545;
  --color-info: #17a2b8;

  --header-height: 64px;
  --header-height-sm: 56px;
  --header-offset: 64px;

  --container-width: 1280px;

  --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-mono: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-base: 1.5;
  --line-height-relaxed: 1.75;

  --spacing-0: 0;
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;

  --border-radius-sm: 0.25rem;
  --border-radius: 0.375rem;
  --border-radius-lg: 0.5rem;
  --border-radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

*, *::before, *::after {
  box-sizing: border-box;
}

/* Alpine: hide opted-in elements until the component initializes. */
[x-cloak] {
  display: none !important;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-surface);
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: var(--spacing-4);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
  margin-top: 0;
  margin-bottom: var(--spacing-4);
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ─── Header / top navigation ────────────────────────────────────── */

header {
  background: var(--color-primary);
  padding: var(--spacing-3) 0;
}

nav.nav-links {
  display: flex;
  flex-direction: row;
  gap: var(--spacing-4);
  list-style: none;
  padding: 0;
  margin: 0;
}

nav.nav-links > ul {
  display: flex;
  flex-direction: row;
  gap: var(--spacing-4);
  list-style: none;
  padding: 0;
  margin: 0;
  width: auto;
}

nav.nav-links a,
nav.nav-links button {
  color: var(--color-text-inverse);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--border-radius);
  transition: background-color var(--transition-fast);
}

nav.nav-links a:hover {
  background: var(--color-primary-light);
  text-decoration: none;
}

nav.nav-links a[aria-current="page"] {
  background: var(--color-primary-light);
  text-decoration: none;
}

.logout-btn {
  background: transparent;
  border: none;
  color: var(--color-text-inverse);
  padding: var(--spacing-2) var(--spacing-3);
  cursor: pointer;
  font: inherit;
  border-radius: var(--border-radius);
  transition: background-color var(--transition-fast);
}

.logout-btn:hover {
  background: var(--color-primary-light);
}

/* ─── Buttons ────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-base);
  border: 1px solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
}

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

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-secondary-dark);
}

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

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-surface-raised);
  border-color: var(--color-primary);
}

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

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-surface-sunken);
}

.btn-danger {
  background-color: var(--color-error);
  color: var(--color-text-inverse);
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--color-error);
  filter: brightness(0.9);
}

.btn-link {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-primary);
  padding: var(--spacing-1) var(--spacing-2);
}

.btn-link:hover:not(:disabled) {
  background-color: var(--color-surface-sunken);
  text-decoration: underline;
}

.btn-sm {
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-lg);
}

.btn-block {
  width: 100%;
}

/* ─── Forms ──────────────────────────────────────────────────────── */

.form-group {
  margin-bottom: var(--spacing-4);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(58, 74, 94, 0.15);
}

.form-input-sm,
.form-select-sm,
.form-textarea-sm {
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-sm);
}

.form-input::placeholder {
  color: var(--color-text-light);
}

.form-checkbox {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--color-primary);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
}

.form-error {
  margin-top: var(--spacing-1);
  font-size: var(--font-size-sm);
  color: var(--color-error);
}

.form-hint {
  margin-top: var(--spacing-1);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.form-actions {
  display: flex;
  gap: var(--spacing-2);
  justify-content: flex-end;
  margin-top: var(--spacing-4);
}

.form-inline {
  display: inline-flex;
  gap: 0.25rem;
  align-items: center;
}

.form-group--flush {
  margin-bottom: 0;
}

.form-datetime-row {
  display: flex;
  gap: var(--spacing-2);
}

.form-datetime-row > * {
  flex: 1;
}

.login-container {
  max-width: 400px;
  margin: var(--spacing-12) auto;
  padding: var(--spacing-6);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

/* ─── Cards ──────────────────────────────────────────────────────── */

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: var(--spacing-4) var(--spacing-6);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface-raised);
}

.card-title {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.card-body {
  padding: var(--spacing-6);
}

.card-footer {
  padding: var(--spacing-4) var(--spacing-6);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface-raised);
}

/* ─── Hover card ─────────────────────────────────────────────────── */
/* NOTE: not mirrored in hende/hende/views/calendar.css — the hover card
   is web-only; show/position for .event-hovercard lives app-side (app.css). */

.hovercard {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-3) var(--spacing-4);
  max-width: 280px;
  font-size: var(--font-size-sm);
}

.hovercard-title {
  margin: 0 0 var(--spacing-1);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
}

.hovercard-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--color-text-light);
  font-size: var(--font-size-xs);
  margin-bottom: var(--spacing-1);
}

.hovercard-location {
  margin: 0 0 var(--spacing-1);
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

.hovercard-body {
  margin: 0;
  line-height: 1.4;
  color: var(--color-text);
}

/* ─── Badges ─────────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--border-radius-full);
}

.badge-primary {
  background-color: rgba(58, 74, 94, 0.1);
  color: var(--color-primary);
}

.badge-secondary {
  background-color: rgba(201, 160, 77, 0.2);
  color: var(--color-secondary-dark);
}

.badge-success {
  background-color: rgba(40, 167, 69, 0.1);
  color: var(--color-success);
}

.badge-warning {
  background-color: rgba(255, 193, 7, 0.2);
  color: #856404;
}

.badge-error {
  background-color: rgba(220, 53, 69, 0.1);
  color: var(--color-error);
}

.badge-info {
  background-color: rgba(23, 162, 184, 0.1);
  color: var(--color-info);
}

/* ─── Alerts ─────────────────────────────────────────────────────── */

.alert {
  padding: var(--spacing-4);
  border-radius: var(--border-radius);
  border: 1px solid transparent;
}

.alert-success {
  background-color: rgba(40, 167, 69, 0.1);
  border-color: var(--color-success);
  color: #155724;
}

.alert-warning {
  background-color: rgba(255, 193, 7, 0.1);
  border-color: var(--color-warning);
  color: #856404;
}

.alert-error {
  background-color: rgba(220, 53, 69, 0.1);
  border-color: var(--color-error);
  color: #721c24;
}

.alert-info {
  background-color: rgba(23, 162, 184, 0.1);
  border-color: var(--color-info);
  color: #0c5460;
}

/* ─── Tables ─────────────────────────────────────────────────────── */

table {
  width: 100%;
  border-collapse: collapse;
}

table th,
table td {
  padding: var(--spacing-3) var(--spacing-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

table th {
  font-weight: var(--font-weight-bold);
  background-color: var(--color-surface-raised);
}

table tbody tr:hover {
  background-color: var(--color-surface-raised);
}

tr.clickable {
  cursor: pointer;
}

tr.clickable:focus-within {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.table-container {
  overflow-x: auto;
}

.row-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.row-actions form {
  display: inline;
  margin: 0;
}

/* ─── Navigation ─────────────────────────────────────────────────── */

nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.nav-link {
  display: block;
  padding: var(--spacing-2) var(--spacing-3);
  color: var(--color-primary);
  border-radius: var(--border-radius);
  transition: background-color var(--transition-fast);
}

.nav-link:hover {
  background-color: var(--color-surface-sunken);
  text-decoration: none;
}

/* ─── Breadcrumbs ────────────────────────────────────────────────── */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  padding: var(--spacing-2) 0;
  list-style: none;
  margin: 0;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  padding: 0 var(--spacing-2);
  color: var(--color-text-light);
}

.breadcrumb-item a {
  color: var(--color-primary);
}

.breadcrumb-item.active {
  color: var(--color-text-light);
}

/* ─── Spinner ────────────────────────────────────────────────────── */

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ─── HTMX indicator ─────────────────────────────────────────────── */

.htmx-indicator {
  display: none;
}

.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
  display: inline-block;
}

/* ─── Empty state ────────────────────────────────────────────────── */

.empty-state {
  text-align: center;
  padding: var(--spacing-12) var(--spacing-6);
  color: var(--color-text-light);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-4);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
}

/* ─── Accordion ──────────────────────────────────────────────────── */

.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-top: var(--spacing-4);
}

.accordion-trigger {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  background: var(--color-surface-raised);
  border: none;
  cursor: pointer;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family);
  color: var(--color-text);
}

.accordion-trigger::after {
  content: "▼";
  font-size: var(--font-size-sm);
  transition: transform var(--transition-fast);
}

.accordion[open] .accordion-trigger::after,
.accordion-item[open] .accordion-trigger::after {
  transform: rotate(180deg);
}

summary.accordion-item {
  list-style: none;
}

summary.accordion-item::-webkit-details-marker {
  display: none;
}

.accordion-content {
  padding: var(--spacing-2);
}

.accordion-link {
  display: block;
  padding: var(--spacing-2) var(--spacing-3);
  color: var(--color-text);
  border-radius: var(--border-radius);
  transition: background-color var(--transition-fast);
}

.accordion-link:hover {
  background-color: var(--color-surface-sunken);
  text-decoration: none;
}

.accordion-link.active {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

/* ─── Avatar ─────────────────────────────────────────────────────── */

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
}

.avatar-sm {
  width: 32px;
  height: 32px;
  font-size: var(--font-size-xs);
}

.avatar-lg {
  width: 56px;
  height: 56px;
  font-size: var(--font-size-lg);
}

/* ─── Description list ───────────────────────────────────────────── */

.description-list {
  margin: 0;
}

.description-list > div {
  padding: var(--spacing-2) 0;
  border-bottom: 1px solid var(--color-border);
}

.description-list > div:last-child {
  border-bottom: none;
}

.description-list dt {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
}

.description-list dd {
  margin: 0;
}

/* ─── Page header ────────────────────────────────────────────────── */

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-6);
  flex-wrap: wrap;
  gap: var(--spacing-4);
}

.page-header h1 {
  margin-bottom: 0;
}

.page-header-actions {
  display: flex;
  gap: var(--spacing-2);
}

/* ─── Calendar ───────────────────────────────────────────────────── */
/* NOTE: mirrored for static export in hende/hende/views/calendar.css
   (Pico tokens). Keep both in sync. */

.calendar-nav-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-4);
}

.calendar-table {
  width: 100%;
  table-layout: fixed;
}

.calendar-table th {
  text-align: center;
  font-size: var(--font-size-sm);
  padding: var(--spacing-2);
}

.calendar-table td {
  vertical-align: top;
  padding: 0.25rem;
  min-height: 4rem;
}

.day-cell {
  min-height: 3rem;
  padding: 0.25rem;
}

.day-number {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
}

.day-events {
  list-style: none;
  padding: 0;
  margin: 0.25rem 0 0;
  font-size: var(--font-size-xs);
  line-height: 1.3;
}

.day-events li {
  padding: 0.125rem 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.other-month .day-number {
  color: var(--color-text-light);
  opacity: 0.5;
}

.other-month .day-events {
  opacity: 0.5;
}

.calendar-wrapper {
  overflow-x: auto;
}

/* ── Calendar view/span combo boxes ────────────────────────────── */

.calendar-view-controls {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-4);
}

.calendar-nav-select {
  width: auto;
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

/* ── Week grid (time rutenett) ─────────────────────────────────── */

.week-grid {
  --week-row-h: 2.5rem;
  --week-gutter-w: 3rem;
  display: grid;
  grid-template-columns: var(--week-gutter-w) repeat(7, minmax(0, 1fr));
  grid-template-rows: auto repeat(24, var(--week-row-h));
  min-width: 52rem;
}

.week-gutter {
  grid-column: 1;
  grid-row: 1 / 26;
  border-left: 1px solid var(--color-border);
}

.week-hour {
  padding: 0 var(--spacing-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  text-align: right;
  border-top: 1px solid var(--color-border);
  transform: translateY(-50%);
}

.week-day-head {
  padding: var(--spacing-2);
  border-left: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
}

.week-day-head.today {
  background: var(--color-surface-sunken);
}

.week-day-head-top {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.week-day-name {
  color: var(--color-text-light);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
}

.week-day {
  position: relative;
  border-left: 1px solid var(--color-border);
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent calc(var(--week-row-h) - 1px),
    var(--color-border) calc(var(--week-row-h) - 1px),
    var(--color-border) var(--week-row-h)
  );
}

.week-events {
  list-style: none;
  margin: 0;
  padding: 0;
}

.week-event {
  position: absolute;
  left: 2px;
  right: 2px;
  top: calc(var(--event-top, 0) * var(--week-row-h));
  height: calc(var(--event-height, 1) * var(--week-row-h));
  font-size: var(--font-size-xs);
  line-height: 1.2;
  overflow: hidden;
  padding: 1px var(--spacing-2);
  border-radius: var(--border-radius-sm);
  background: var(--color-surface-raised);
  border-left: 3px solid var(--event-color, transparent);
  white-space: nowrap;
  text-overflow: ellipsis;
}

.week-event--allday {
  position: static;
  height: auto;
  margin-bottom: 2px;
  border-left-color: var(--event-color, transparent);
}

.week-allday {
  list-style: none;
  margin: var(--spacing-1) 0 0;
  padding: 0;
}

td.today {
  background: var(--color-surface-sunken);
  box-shadow: inset 0 0 0 2px var(--color-primary);
  border-radius: var(--border-radius);
  color: var(--color-text);
}

td.today .day-number {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--border-radius-full);
  padding: 0.1rem 0.5rem;
  display: inline-block;
}

td.today .day-number:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
}

td.today .day-number:focus-visible {
  outline: 2px solid var(--color-primary-dark);
  outline-offset: 1px;
}

.calendar-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-top: var(--spacing-6);
  font-size: var(--font-size-sm);
}

.calendar-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.calendar-list .list-week,
.calendar-list .list-month,
.calendar-list .list-day {
  list-style: none;
}

.list-week,
.list-month {
  margin-bottom: var(--spacing-4);
}

.list-week-heading,
.list-month-heading {
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-2);
}

.list-day {
  margin-bottom: var(--spacing-2);
}

.list-day-heading {
  font-weight: var(--font-weight-medium);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-1);
}

.list-day-events,
.list-week-days,
.list-month-events {
  list-style: none;
  padding: 0;
  margin: 0;
}

.list-event {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0;
  font-size: var(--font-size-sm);
}

.list-event-time,
.list-event-day {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

.list-event-day {
  min-width: 3.5em;
}

.filter-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  border-radius: var(--border-radius-sm);
  padding: 2px var(--spacing-1);
  transition: opacity 0.15s ease;
}

.filter-item:hover {
  background: var(--color-border, rgba(0, 0, 0, 0.05));
}

.filter-item--inactive {
  opacity: 0.4;
}

.filter-item--inactive:hover {
  opacity: 0.7;
}

.filter-item--reset {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  text-decoration: underline;
}

.events-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  align-items: center;
  margin-bottom: var(--spacing-4);
}

.filter-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.event-color-bar {
  border-left: 4px solid var(--event-color, var(--color-border));
  padding-left: 0.5rem;
  margin-bottom: 0.25rem;
}

.cal-icon {
  width: 1em;
  height: 1em;
  vertical-align: middle;
  flex-shrink: 0;
}

/* ─── Layout (demo) ──────────────────────────────────────────────── */

.layout-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

.sidebar {
  width: 100%;
  padding-top: var(--spacing-4);
}

.main-content {
  width: 100%;
}

@media (min-width: 768px) {
  .layout-sidebar {
    flex-direction: row;
    align-items: flex-start;
  }
  .sidebar {
    width: 200px;
    flex-shrink: 0;
    padding-top: 0;
  }
  .main-content {
    flex: 1;
    min-width: 0;
  }
  .sidebar .section-nav {
    top: calc(var(--spacing-4) + var(--header-offset));
  }
}

/* ─── Container & grid ───────────────────────────────────────────── */

.container {
  width: 100%;
  padding-left: var(--spacing-4);
  padding-right: var(--spacing-4);
}

.container-sm {
  max-width: 640px;
}

.container-md {
  max-width: 768px;
}

.container-lg {
  max-width: 1024px;
}

.container-xl {
  max-width: 1280px;
}

.grid {
  display: grid;
  gap: var(--spacing-4);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ─── Utilities ──────────────────────────────────────────────────── */

.flex { display: flex; }
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.flex-none { flex: none; }

.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

.text-sm { font-size: var(--font-size-sm); }
.text-lg { font-size: var(--font-size-lg); }
.text-muted { color: var(--color-text-light); }

.group-members {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-3);
}

.group-member {
  padding: var(--spacing-1) 0;
  font-size: var(--font-size-sm);
}

.member-form {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-3);
}

.group-actions {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.accordion-title {
  flex: 1;
}

.copy-email-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--spacing-1);
}

.copy-email-btn .cal-icon {
  width: 1em;
  height: 1em;
}

.text-center { text-align: center; }
.text-error { color: var(--color-error); }

.hide-mobile {
  display: none;
}

/* ─── Responsive ─────────────────────────────────────────────────── */

@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .sm\:flex-row { flex-direction: row; }
  .sm\:flex-nowrap { flex-wrap: nowrap; }
  .hide-mobile {
    display: initial;
  }
}

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .md\:flex-row { flex-direction: row; }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 640px) {
  :root {
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.375rem;
    --font-size-xl: 1.125rem;
  }

  body {
    font-size: var(--font-size-base);
  }

  .container {
    padding-left: var(--spacing-3);
    padding-right: var(--spacing-3);
  }

  .card-header,
  .card-body,
  .card-footer {
    padding-left: var(--spacing-4);
    padding-right: var(--spacing-4);
  }

  table {
    font-size: var(--font-size-sm);
  }

  table th,
  table td {
    padding: var(--spacing-2) var(--spacing-2);
  }

  .btn {
    padding: var(--spacing-2) var(--spacing-3);
  }

  .btn-lg {
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
  }

  nav {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .breadcrumb {
    font-size: var(--font-size-sm);
  }

  .grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
  }

  .form-input,
  .form-select,
  .form-textarea {
    font-size: 16px;
  }

  .badge {
    font-size: 0.6875rem;
  }

  .alert {
    padding: var(--spacing-3);
    font-size: var(--font-size-sm);
  }
}

/* ─── Accessibility ──────────────────────────────────────────────── */

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ─── Themes ─────────────────────────────────────────────────────── */

[data-theme="nordic-forest"] {
  --color-primary: #6B8069;
  --color-primary-light: #94A092;
  --color-primary-dark: #4F5E4B;
  --color-secondary: #D4B978;
  --color-secondary-light: #E8D9A8;
  --color-secondary-dark: #B89A50;
}

[data-theme="fjord-blue"] {
  --color-primary: #6B9EA0;
  --color-primary-light: #9FC5C7;
  --color-primary-dark: #4A7870;
  --color-secondary: #E8C97A;
  --color-secondary-light: #F0DCA8;
  --color-secondary-dark: #C9A850;
}

[data-theme="midnight"] {
  --color-primary: #3A4A5E;
  --color-primary-light: #5A7085;
  --color-primary-dark: #253140;
  --color-secondary: #C9A04D;
  --color-secondary-light: #DCC07A;
  --color-secondary-dark: #A68832;
}

[data-theme="aurora"] {
  --color-primary: #7A6B9E;
  --color-primary-light: #A594C7;
  --color-primary-dark: #5A4A78;
  --color-secondary: #C97A9E;
  --color-secondary-light: #DCA8C7;
  --color-secondary-dark: #A85078;
}

[data-theme="birch"] {
  --color-primary: #8A9E8A;
  --color-primary-light: #B5C7B5;
  --color-primary-dark: #6A7A6A;
  --color-secondary: #C9B89A;
  --color-secondary-light: #E0D4BE;
  --color-secondary-dark: #A89870;
}

[data-theme="lingonberry"] {
  --color-primary: #9E5A5A;
  --color-primary-light: #C78585;
  --color-primary-dark: #7A3A3A;
  --color-secondary: #C9A04D;
  --color-secondary-light: #DCC07A;
  --color-secondary-dark: #A68832;
}

/* ─── Demo-only (design system page) ─────────────────────────────── */

.demo-section {
  padding: var(--spacing-8) 0;
  border-bottom: 1px solid var(--color-border);
}

.demo-section:last-child {
  border-bottom: none;
}

.demo-title {
  margin-bottom: var(--spacing-4);
  color: var(--color-primary);
}

.demo-description {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-6);
}

.demo-block {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  align-items: flex-start;
}

.demo-group {
  flex: 1;
  min-width: 200px;
}

.demo-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-2);
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  transition: all var(--transition-base);
}

.header-shrunk {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4);
  transition: padding var(--transition-base);
}

.header-shrunk .header-content {
  padding: var(--spacing-2) var(--spacing-4);
}

.header-logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-inverse);
  line-height: 1;
  transition: font-size var(--transition-base);
}

.header-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.header-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-secondary);
}

.header-shrunk .header-logo {
  font-size: var(--font-size-lg);
}

.header-shrunk .header-subtitle {
  display: none;
}

@media (max-width: 640px) {
  .header-content {
    padding: var(--spacing-3);
  }
  .header-logo {
    font-size: var(--font-size-lg);
  }
  .header-shrunk .header-content {
    padding: var(--spacing-2) var(--spacing-3);
  }
  .header-shrunk .header-logo {
    font-size: var(--font-size-base);
  }
}

.section-nav {
  position: sticky;
  top: var(--spacing-4);
  background: var(--color-surface);
  padding: var(--spacing-4);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.section-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.section-nav li {
  margin-bottom: var(--spacing-2);
}

.section-nav a {
  display: block;
  padding: var(--spacing-2);
  border-radius: var(--border-radius);
}

.section-nav a:hover {
  background: var(--color-surface-sunken);
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--spacing-4);
}

.color-swatch {
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.color-preview {
  height: 80px;
}

.color-info {
  padding: var(--spacing-3);
  font-size: var(--font-size-sm);
}

.color-name {
  font-weight: var(--font-weight-medium);
}

.color-value {
  font-family: var(--font-family-mono);
  color: var(--color-text-light);
}

.font-preview {
  display: grid;
  gap: var(--spacing-2);
}

.font-sample {
  padding: var(--spacing-3);
  background: var(--color-surface-raised);
  border-radius: var(--border-radius);
}

.font-size {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.responsive-demo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-4);
}

.responsive-demo-box {
  padding: var(--spacing-4);
  background: var(--color-surface-raised);
  border-radius: var(--border-radius);
  text-align: center;
}

@media (min-width: 640px) {
  .responsive-demo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .responsive-demo-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .sidebar .accordion {
    display: none;
  }
  .sidebar .nav {
    display: flex;
  }
}

.theme-switcher {
  display: flex;
  gap: var(--spacing-2);
  flex-wrap: wrap;
  padding: var(--spacing-3);
  background: var(--color-surface-raised);
  border-radius: var(--border-radius);
}

.theme-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--border-radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.theme-btn:hover {
  transform: scale(1.1);
}

.theme-btn.active {
  border-color: var(--color-text);
}

.theme-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  margin-bottom: var(--spacing-4);
}