:root {
  --bg: #080b10;
  --panel: #101722;
  --panel-soft: #141d2a;
  --panel-strong: #1b2636;
  --text: #eef4ff;
  --muted: #99a8bd;
  --line: #263448;
  --primary: #43d6b5;
  --primary-dark: #1f9f87;
  --accent: #f2b84b;
  --danger: #ff6b6b;
  --pending: #f2b84b;
  --confirmed: #43d6b5;
  --blocked: #8da2ff;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(67, 214, 181, 0.12), transparent 32rem),
    radial-gradient(circle at 100% 10%, rgba(242, 184, 75, 0.1), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Khmer OS", "Noto Sans Khmer", sans-serif;
  letter-spacing: 0;
}

a {
  color: var(--primary);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
}

.sidebar {
  border-right: 1px solid var(--line);
  background: rgba(16, 23, 34, 0.84);
  backdrop-filter: blur(18px);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.brand {
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #05100e;
  font-size: 24px;
  font-weight: 900;
}

.brand h1,
.topbar h2,
.panel-header h3 {
  margin: 0;
}

.brand p,
.topbar p,
.panel-header p {
  margin: 4px 0 0;
  color: var(--muted);
}

.nav {
  display: grid;
  gap: 8px;
}

.nav button {
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
  color: var(--muted);
  text-align: left;
  padding: 0 12px;
  font-weight: 750;
}

.nav button.active,
.nav button:hover {
  background: var(--panel-strong);
  border-color: var(--line);
  color: var(--text);
}

.room-panel {
  margin-top: auto;
  display: grid;
  gap: 4px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-soft);
}

.room-panel span,
.room-panel small {
  color: var(--muted);
}

.room-panel strong {
  font-size: 20px;
}

.main {
  min-width: 0;
}

.topbar {
  min-height: 80px;
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--line);
}

.status-pill {
  white-space: nowrap;
  border: 1px solid rgba(67, 214, 181, 0.36);
  border-radius: 999px;
  color: var(--primary);
  padding: 8px 12px;
  background: rgba(67, 214, 181, 0.08);
}

.button-pill {
  cursor: pointer;
}

.button-pill:hover {
  border-color: var(--primary);
  background: rgba(67, 214, 181, 0.16);
}

.content {
  padding: 28px;
}

.booking-grid,
.admin-grid {
  display: grid;
  gap: 18px;
}

.booking-grid {
  grid-template-columns: minmax(0, 1fr) 380px;
  align-items: start;
}

.panel,
.stats > div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(16, 23, 34, 0.86);
  box-shadow: var(--shadow);
}

.panel-header {
  min-height: 76px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.panel-body {
  padding: 18px;
}

.month-actions {
  display: flex;
  gap: 8px;
}

.icon-btn {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-strong);
  color: var(--text);
  font-size: 28px;
  line-height: 1;
}

.icon-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.calendar {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
  padding: 18px;
}

.weekday {
  min-height: 32px;
  color: var(--muted);
  display: grid;
  place-items: center;
  font-size: 13px;
}

.day {
  aspect-ratio: 1;
  min-height: 82px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-soft);
  color: var(--text);
  display: grid;
  align-content: space-between;
  justify-items: start;
  padding: 10px;
}

.day:hover {
  border-color: var(--primary);
}

.day.selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(67, 214, 181, 0.2) inset;
}

.day.today .day-number {
  color: var(--accent);
}

.day.empty {
  visibility: hidden;
}

.day-number {
  font-size: 22px;
  font-weight: 850;
}

.day-meta {
  min-height: 10px;
  display: flex;
  gap: 5px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.dot.confirmed {
  background: var(--confirmed);
}

.dot.pending {
  background: var(--pending);
}

.dot.blocked {
  background: var(--blocked);
}

.date-summary,
.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.stats {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.date-summary div,
.stats > div {
  padding: 14px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.date-summary span,
.stats span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.date-summary strong,
.stats strong {
  display: block;
  margin-top: 5px;
  font-size: 24px;
}

.book-button,
.primary-btn {
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #03100d;
  font-weight: 900;
  margin-top: 16px;
}

.book-button {
  min-height: 58px;
  font-size: 18px;
}

.primary-btn:hover,
.book-button:hover {
  filter: brightness(1.06);
}

.schedule,
.booking-form,
.booking-list,
.block-list {
  display: grid;
  gap: 10px;
}

.schedule {
  margin-top: 16px;
}

.schedule-row,
.booking-card,
.block-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-soft);
  padding: 12px;
}

.schedule-row,
.block-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.schedule-row {
  justify-content: flex-start;
}

.schedule-row strong,
.block-card strong {
  display: block;
}

.schedule-row small,
.block-card small {
  color: var(--muted);
}

.booking-form {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.form-row {
  display: grid;
  gap: 6px;
}

.form-row label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0b111a;
  color: var(--text);
  padding: 9px 11px;
  outline: none;
}

.form-row textarea {
  min-height: 78px;
  resize: vertical;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(67, 214, 181, 0.16);
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-soft);
  color: var(--muted);
  padding: 0 12px;
  font-weight: 800;
}

.tab.active {
  color: #03100d;
  border-color: var(--primary);
  background: var(--primary);
}

.booking-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
}

.booking-card h4 {
  margin: 0 0 8px;
}

.booking-card p {
  margin: 5px 0;
  color: var(--muted);
}

.booking-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: start;
  justify-content: flex-end;
  gap: 8px;
}

.small-btn {
  min-height: 36px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--primary);
  color: #03100d;
  padding: 0 12px;
  font-weight: 850;
}

.small-btn.danger {
  background: var(--danger);
  color: #180000;
}

.small-btn.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.small-btn:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 0 9px;
  font-size: 12px;
  font-weight: 900;
}

.badge.pending {
  color: #1d1400;
  background: var(--pending);
}

.badge.confirmed {
  color: #03100d;
  background: var(--confirmed);
}

.badge.rejected,
.badge.cancelled {
  color: #1f0000;
  background: var(--danger);
}

.badge.blocked {
  color: #06091d;
  background: var(--blocked);
}

.notice,
.empty {
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  padding: 14px;
  background: rgba(141, 162, 255, 0.08);
}

.block-layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 16px;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 20;
  max-width: min(420px, calc(100vw - 40px));
  display: none;
  border: 1px solid rgba(67, 214, 181, 0.34);
  border-radius: var(--radius);
  background: #08110f;
  color: var(--text);
  padding: 13px 15px;
  box-shadow: var(--shadow);
}

.toast.show {
  display: block;
}

@media (max-width: 1040px) {
  .app-shell,
  .booking-grid,
  .block-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 5;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

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

  .room-panel {
    margin-top: 0;
  }
}

@media (max-width: 720px) {
  .content,
  .topbar {
    padding: 16px;
  }

  .topbar,
  .panel-header,
  .booking-card,
  .block-card {
    align-items: stretch;
    flex-direction: column;
    grid-template-columns: 1fr;
  }

  .calendar {
    gap: 5px;
    padding: 10px;
  }

  .weekday {
    font-size: 11px;
  }

  .day {
    min-height: 52px;
    padding: 7px;
  }

  .day-number {
    font-size: 16px;
  }

  .date-summary,
  .stats {
    grid-template-columns: 1fr;
  }

  .booking-actions,
  .small-btn {
    width: 100%;
  }
}