:root {
  --bg: #f3f6f4;
  --bg-elevated: #ffffff;
  --text: #15231c;
  --muted: #5d6f66;
  --border: #d5e0da;
  --accent: #1f6b4f;
  --accent-contrast: #ffffff;
  --danger: #b42318;
  --warning-bg: #fff7e8;
  --warning-text: #7a4b00;
  --success-bg: #e8f7ef;
  --success-text: #0f5132;
  --error-bg: #fdecec;
  --error-text: #8a1c13;
  --shadow: 0 10px 30px rgba(21, 35, 28, 0.08);
  --radius: 14px;
  --font: "Avenir Next", "Segoe UI", sans-serif;
}

html[data-theme="dark"] {
  --bg: #0f1613;
  --bg-elevated: #17211c;
  --text: #e7f0eb;
  --muted: #9bb0a5;
  --border: #2a3a32;
  --accent: #4db68c;
  --accent-contrast: #082016;
  --danger: #ff7b72;
  --warning-bg: #3a2c12;
  --warning-text: #ffd48a;
  --success-bg: #163226;
  --success-text: #8ee0b5;
  --error-bg: #3a1715;
  --error-text: #ffb4ae;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(circle at top left, rgba(31, 107, 79, 0.12), transparent 28%),
    radial-gradient(circle at bottom right, rgba(77, 182, 140, 0.12), transparent 30%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header,
.site-footer {
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
}

.site-footer {
  border-bottom: 0;
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.header-inner,
.nav,
.page-head,
.toolbar,
.actions,
.form-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-inner {
  justify-content: space-between;
  min-height: 64px;
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: 0.02em;
}

.nav {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--text);
  font-weight: 600;
}

.nav-user {
  color: var(--muted);
  font-size: 0.92rem;
}

.main {
  padding: 1.5rem 0 2rem;
}

.page-head {
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.6rem, 2vw, 2rem);
}

.muted,
.hint {
  color: var(--muted);
}

.panel,
.auth-panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
}

.panel + .panel {
  margin-top: 1rem;
}

.panel h2 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}

.auth-panel {
  max-width: 420px;
  margin: 2rem auto;
}

.toolbar {
  margin: 1rem 0;
  flex-wrap: wrap;
}

.toolbar input[type="search"],
.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.toolbar input[type="search"] {
  flex: 1;
  min-width: 220px;
}

.form {
  display: grid;
  gap: 1rem;
}

.form-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form label {
  display: grid;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.92rem;
}

.span-2 {
  grid-column: span 2;
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  border-radius: 999px;
  padding: 0.55rem 1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn:hover {
  filter: brightness(1.03);
  text-decoration: none;
}

.btn[hidden] {
  display: none !important;
}

.btn-primary {
  background: var(--accent);
  border-color: transparent;
  color: var(--accent-contrast);
}

.btn-danger {
  background: transparent;
  border-color: color-mix(in srgb, var(--danger) 45%, var(--border));
  color: var(--danger);
}

.btn-ghost {
  background: transparent;
}

.btn-small {
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
}

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

.flash {
  border-radius: 12px;
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
}

.flash-success {
  background: var(--success-bg);
  color: var(--success-text);
  border-color: color-mix(in srgb, var(--success-text) 25%, transparent);
}

.flash-error {
  background: var(--error-bg);
  color: var(--error-text);
  border-color: color-mix(in srgb, var(--error-text) 25%, transparent);
}

.flash-warning {
  background: var(--warning-bg);
  color: var(--warning-text);
  border-color: color-mix(in srgb, var(--warning-text) 25%, transparent);
}

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

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

.data-table th,
.data-table td {
  text-align: left;
  padding: 0.8rem 0.6rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.data-table th {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.actions {
  flex-wrap: wrap;
  justify-content: flex-start;
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: capitalize;
  border: 1px solid var(--border);
}

.badge-active {
  background: var(--success-bg);
  color: var(--success-text);
}

.badge-inactive {
  background: color-mix(in srgb, var(--muted) 18%, transparent);
  color: var(--muted);
}

.badge-approved {
  background: var(--success-bg);
  color: var(--success-text);
}

.badge-rejected {
  background: var(--error-bg);
  color: var(--error-text);
}

.meta-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.prewrap {
  white-space: pre-wrap;
}

.inline-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.inline-label select {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.meta {
  display: grid;
  gap: 0.75rem;
  margin: 0 0 1.25rem;
}

.meta dt {
  color: var(--muted);
  font-size: 0.85rem;
}

.meta dd {
  margin: 0.15rem 0 0;
  font-weight: 600;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
}

.next-reservation {
  margin-bottom: 1.25rem;
}

.next-reservation h2 {
  margin: 0.15rem 0 0.35rem;
}

.amenity-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.amenity-cards > .panel {
  grid-column: 1 / -1;
}

.amenity-card {
  display: grid;
  gap: 0.45rem;
  align-content: start;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.15rem;
  color: var(--text);
  text-decoration: none;
}

.amenity-card:hover {
  text-decoration: none;
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
}

.amenity-card h2 {
  margin: 0;
}

.amenity-card .btn {
  justify-self: start;
  margin-top: 0.35rem;
}

.amenity-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.85rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.calendar-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 1rem;
  margin-top: 1rem;
}

.calendar-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.calendar-nav h2 {
  margin: 0;
  text-align: center;
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.4rem;
}

.calendar-weekdays {
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-align: center;
}

.calendar-day {
  min-height: 72px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.25rem;
  padding: 0.45rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  text-decoration: none;
}

.calendar-day:hover {
  text-decoration: none;
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
}

.calendar-day span {
  font-weight: 700;
}

.calendar-day small {
  color: var(--muted);
  font-size: 0.75rem;
}

.calendar-day.is-today {
  box-shadow: inset 0 0 0 2px var(--accent);
}

.calendar-day.is-selected {
  background: color-mix(in srgb, var(--accent) 14%, var(--bg-elevated));
  border-color: var(--accent);
}

.calendar-day.is-full {
  opacity: 0.72;
}

.calendar-day.is-past,
.calendar-day.is-outside {
  opacity: 0.45;
  pointer-events: none;
  background: transparent;
}

.slot-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.slot-chip {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  gap: 0.1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--bg-elevated);
}

.slot-chip small {
  font-weight: 500;
  color: var(--muted);
}

.slot-chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.slot-chip.is-available {
  cursor: pointer;
}

.slot-chip.is-available:hover,
.slot-chip:has(input:checked) {
  border-color: var(--accent);
  background: var(--success-bg);
  color: var(--success-text);
}

.slot-chip.is-mine {
  background: var(--success-bg);
  color: var(--success-text);
  border-color: color-mix(in srgb, var(--success-text) 30%, transparent);
}

.slot-chip.is-full,
.slot-chip.is-past {
  opacity: 0.55;
}

.slot-list-heading {
  margin: 1.25rem 0 0.5rem;
  font-size: 1rem;
}

.booking-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.booking-list li {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.thank-you-card {
  max-width: 560px;
  margin: 2rem auto;
  text-align: center;
}

.thank-you-card .form-actions {
  justify-content: center;
}

.thank-you-detail {
  margin: 1rem 0;
  font-size: 1.05rem;
}

.badge-confirmed {
  background: var(--success-bg);
  color: var(--success-text);
}

.amenity-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 0.6rem;
}

.amenity-modal[hidden] {
  display: none;
}

.amenity-modal-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, #06110c 55%, transparent);
  backdrop-filter: blur(8px);
}

.amenity-modal-dialog {
  position: relative;
  z-index: 1;
  width: min(640px, 100%);
  max-height: calc(100dvh - 1.2rem);
  overflow: hidden;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 0.85rem 1.1rem 0.95rem;
}

.amenity-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.55rem;
}

.amenity-modal-head h2 {
  margin: 0;
  font-size: 1.2rem;
}

.amenity-pills {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 0.25rem;
  margin-bottom: 0.6rem;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
}

.amenity-pills-thumb {
  position: absolute;
  top: 0.25rem;
  bottom: 0.25rem;
  left: 0.25rem;
  width: calc(50% - 0.25rem);
  border-radius: 999px;
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}

.amenity-pills[data-tab="manage"] .amenity-pills-thumb {
  transform: translateX(100%);
}

.amenity-pills button {
  position: relative;
  z-index: 1;
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 700;
  padding: 0.55rem 0.75rem;
  border-radius: 999px;
  cursor: pointer;
}

.amenity-pills[data-tab="add"] button[data-tab="add"],
.amenity-pills[data-tab="manage"] button[data-tab="manage"] {
  color: var(--text);
}

.amenity-panes {
  overflow: hidden;
  min-height: 0;
}

.amenity-track {
  display: flex;
  width: 200%;
  height: 100%;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.amenity-modal[data-tab="manage"] .amenity-track {
  transform: translateX(-50%);
}

.amenity-pane {
  width: 50%;
  overflow: auto;
  scrollbar-width: none;
}

.amenity-pane::-webkit-scrollbar {
  display: none;
}

.amenity-modal-footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.6rem;
  padding-top: 0.75rem;
  margin-top: 0.15rem;
  border-top: 1px solid var(--border);
}

.amenity-modal[data-tab="manage"] .amenity-modal-footer {
  display: none;
}

.amenity-delete-modal {
  z-index: 50;
}

.amenity-delete-dialog {
  position: relative;
  z-index: 1;
  width: min(420px, 100%);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 1.2rem 1.2rem 1.15rem;
}

.amenity-delete-dialog h2 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

.amenity-delete-dialog p {
  margin: 0 0 1rem;
  color: var(--text);
}

.amenity-delete-dialog .form-actions {
  justify-content: flex-end;
}

.amenity-form {
  gap: 0.5rem;
}

.amenity-form input,
.amenity-form select,
.amenity-form textarea {
  padding: 0.42rem 0.7rem;
}

.amenity-form textarea {
  min-height: 2.6rem;
  resize: none;
}

.amenity-form .form-actions {
  margin-top: 0.15rem;
  padding-bottom: 0.15rem;
}

.form label.amenity-active {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 0.55rem;
  font-weight: 600;
}

.amenity-active input[type="checkbox"] {
  width: 1.05rem;
  height: 1.05rem;
  margin: 0;
  flex: none;
  accent-color: var(--accent);
}

.amenity-manage-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.amenity-manage-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg);
}

.amenity-manage-list p {
  margin: 0.2rem 0 0;
}

@media (max-width: 720px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: span 1;
  }

  .page-head {
    align-items: flex-start;
  }

  .amenity-cards,
  .calendar-layout {
    grid-template-columns: 1fr;
  }

  .calendar-day {
    min-height: 58px;
    padding: 0.3rem;
  }

  .amenity-manage-list li {
    flex-direction: column;
    align-items: flex-start;
  }
}