:root {
  color-scheme: light;
  --ink: #1f2933;
  --muted: #6b7785;
  --line: #d9e1e8;
  --surface: #f4f7f9;
  --accent: #0f766e;
  --accent-dark: #0b5d56;
  --accent-soft: #dff6f1;
  --danger: #b42318;
  --danger-soft: #fff0ee;
  --shadow: 0 14px 32px rgba(29, 41, 57, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(244, 247, 249, 0.94), rgba(244, 247, 249, 1)),
    url("https://images.unsplash.com/photo-1497366754035-f200968a6e72?auto=format&fit=crop&w=1400&q=80");
  background-attachment: fixed;
  background-position: center;
  background-size: cover;
  font-family: "Segoe UI", "Noto Sans TC", system-ui, -apple-system, sans-serif;
}

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

button {
  -webkit-tap-highlight-color: transparent;
}

.mobile-app {
  width: min(100%, 760px);
  margin: 0 auto;
  padding: max(18px, env(safe-area-inset-top)) 14px calc(96px + env(safe-area-inset-bottom));
}

.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 2px 12px;
}

.eyebrow,
h1,
h2,
h3,
p {
  margin-top: 0;
}

.eyebrow {
  margin-bottom: 5px;
  color: var(--accent-dark);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin-bottom: 0;
  font-size: 1.72rem;
  line-height: 1.12;
}

h2 {
  margin-bottom: 0;
  font-size: 1.08rem;
}

h3 {
  margin-bottom: 0;
  font-size: 1rem;
}

.status-pill {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 11px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.9);
  font-size: 0.88rem;
  font-weight: 800;
  box-shadow: 0 8px 18px rgba(29, 41, 57, 0.08);
}

.status-pill.is-open {
  border-color: #b8e8df;
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.status-pill.is-busy {
  border-color: #ffd0ca;
  color: var(--danger);
  background: var(--danger-soft);
}

.app-tabs,
.view-tabs {
  display: grid;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px;
  background: #eef3f6;
}

.app-tabs {
  grid-template-columns: 1fr 1fr;
  margin-bottom: 14px;
}

.view-tabs {
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 12px;
}

.app-tab,
.view-tab,
.report-tab {
  min-height: 40px;
  border: 0;
  border-radius: 6px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-weight: 900;
}

.app-tab.is-active,
.view-tab.is-active,
.report-tab.is-active {
  color: #fff;
  background: var(--accent);
  box-shadow: 0 6px 14px rgba(15, 118, 110, 0.22);
}

.panel-view {
  display: none;
}

.panel-view.is-active {
  display: grid;
  gap: 14px;
}

.is-hidden {
  display: none !important;
}

.admin-content {
  display: none;
  gap: 14px;
}

.admin-content.is-active {
  display: grid;
}

.booking-card,
.day-card,
.admin-card {
  border: 1px solid rgba(217, 225, 232, 0.9);
  border-radius: 8px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.section-title,
.schedule-toolbar,
.list-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.section-title span,
.section-title p,
.schedule-toolbar p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.booking-form {
  display: grid;
  gap: 13px;
}

label {
  display: grid;
  gap: 7px;
  min-width: 0;
  color: #344054;
  font-size: 0.92rem;
  font-weight: 800;
}

.field-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(104px, 0.55fr);
  gap: 10px;
}

input,
select,
textarea {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  color: var(--ink);
  background: #fff;
  outline: none;
}

input[type="date"] {
  appearance: none;
  -webkit-appearance: none;
  overflow: hidden;
  font-size: 0.95rem;
  text-align: center;
}

input[type="date"]::-webkit-date-and-time-value {
  width: 100%;
  min-width: 0;
  margin: 0;
  text-align: center;
}

input[type="date"]::-webkit-calendar-picker-indicator {
  flex: 0 0 auto;
  margin-left: 4px;
}

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, #667085 50%), linear-gradient(135deg, #667085 50%, transparent 50%);
  background-position: calc(100% - 18px) 21px, calc(100% - 12px) 21px;
  background-size: 6px 6px;
  background-repeat: no-repeat;
  padding-right: 34px;
}

textarea {
  min-height: 82px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.14);
}

.form-message {
  min-height: 20px;
  margin: 0;
  color: var(--danger);
  font-size: 0.9rem;
  font-weight: 800;
}

.form-message.success {
  color: var(--accent-dark);
}

.sticky-submit {
  position: sticky;
  bottom: env(safe-area-inset-bottom);
  z-index: 5;
  margin: 0 -16px -16px;
  padding: 12px 16px max(12px, env(safe-area-inset-bottom));
  border-top: 1px solid rgba(217, 225, 232, 0.75);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.primary-action,
.ghost-action,
.delete-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 900;
}

.primary-action {
  width: 100%;
  min-height: 52px;
  color: #fff;
  background: var(--accent);
}

.ghost-action {
  border: 1px solid var(--line);
  padding: 0 12px;
  color: var(--ink);
  background: #fff;
}

.delete-action {
  padding: 0 12px;
  color: var(--danger);
  background: var(--danger-soft);
}

.compact-date {
  flex: 0 0 152px;
  min-width: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.compact-date input {
  min-height: 40px;
  padding: 8px 9px;
  font-size: 0.9rem;
}

.summary,
.report-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  margin-bottom: 14px;
}

.summary span,
.report-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fff;
}

.summary span {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
  text-align: center;
}

.room-status-filter {
  margin: -2px 0 14px;
}

.report-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.report-grid strong {
  display: block;
  margin-top: 4px;
  overflow-wrap: anywhere;
  font-size: 1.25rem;
}

.admin-session {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.admin-session p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.permission-card {
  display: grid;
  gap: 12px;
}

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

.permission-list span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 10px;
  color: var(--muted);
  background: #fff;
  font-size: 0.84rem;
  font-weight: 900;
}

.permission-list span.is-allowed {
  border-color: #b8e8df;
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.visual-report {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

.donut-card,
.mini-chart-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px;
  background: #fff;
}

.donut-card {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
}

.donut-chart {
  display: grid;
  width: 112px;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(var(--accent) calc(var(--value) * 1%), #dce5eb 0);
}

.donut-chart > div {
  display: grid;
  width: 74px;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: #fff;
  text-align: center;
}

.donut-chart strong {
  font-size: 1.14rem;
}

.donut-chart span,
.donut-card p,
.chart-heading span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.donut-card p {
  margin-bottom: 0;
}

.chart-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.mini-bars {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(24px, 1fr);
  gap: 7px;
  min-height: 136px;
  align-items: end;
}

.mini-bar {
  display: grid;
  grid-template-rows: 1fr auto auto;
  gap: 5px;
  min-width: 0;
  height: 136px;
  align-items: end;
  text-align: center;
}

.mini-bar-fill {
  display: block;
  width: 100%;
  max-width: 34px;
  min-height: 6px;
  margin: 0 auto;
  border-radius: 6px 6px 2px 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
}

.mini-bar strong {
  font-size: 0.82rem;
}

.mini-bar small {
  overflow: hidden;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.room-grid,
.slots,
.booking-list,
.report-bars,
.admin-room-list,
.account-list,
.audit-log-list {
  display: grid;
  gap: 10px;
}

.room-grid {
  margin-bottom: 18px;
}

.room-card,
.admin-room-item,
.account-item,
.report-bar {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px;
  background: var(--surface);
}

.room-meta,
.admin-room-item,
.account-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.room-meta p,
.admin-room-item p,
.account-item p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.room-capacity,
.room-state {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: 5px 9px;
  color: var(--muted);
  background: #e9eef2;
  font-size: 0.82rem;
  font-weight: 900;
}

.room-capacity,
.room-state.is-active {
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.slot {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  border-left: 4px solid var(--accent);
  border-radius: 7px;
  padding: 9px;
  background: #fff;
  font-size: 0.88rem;
}

.slot time {
  color: var(--accent-dark);
  font-weight: 900;
}

.slot time small {
  display: block;
  margin-bottom: 2px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
}

.slot strong,
.booking-item h3 {
  display: block;
  overflow-wrap: anywhere;
}

.slot span,
.booking-item p {
  color: var(--muted);
}

.empty-state {
  display: grid;
  min-height: 62px;
  place-items: center;
  border: 1px dashed #c4ced8;
  border-radius: 8px;
  padding: 12px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  text-align: center;
}

.booking-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
}

.booking-item h3 {
  margin: 0 0 5px;
}

.booking-item p {
  margin: 0;
  font-size: 0.88rem;
}

.booking-note {
  margin-top: 7px !important;
  color: #475467 !important;
}

.audit-log-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
}

.audit-log-item p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.audit-log-item time {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  white-space: nowrap;
}

.report-bar {
  display: grid;
  gap: 9px;
}

.report-bar div:first-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.report-bar span {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
}

.bar-track {
  height: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: #dce5eb;
}

.bar-track span {
  display: block;
  height: 100%;
  min-width: 4px;
  border-radius: inherit;
  background: var(--accent);
}

.admin-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.room-actions {
  display: grid;
  gap: 8px;
}

@media (max-width: 430px) {
  .app-header,
  .schedule-toolbar,
  .admin-session,
  .admin-room-item,
  .account-item {
    align-items: stretch;
    flex-direction: column;
  }

  .compact-date {
    flex-basis: 100%;
  }

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

  .audit-log-item {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 360px) {
  .mobile-app {
    padding-right: 10px;
    padding-left: 10px;
  }

  .field-row,
  .summary,
  .report-grid,
  .donut-card,
  .booking-item,
  .admin-actions {
    grid-template-columns: 1fr;
  }

  .donut-chart {
    margin: 0 auto;
  }
}

@media (min-width: 760px) {
  .mobile-app {
    width: min(100%, 1180px);
    padding: 30px 24px 48px;
  }

  .app-header {
    align-items: flex-end;
  }

  h1 {
    font-size: 2.5rem;
  }

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

  #adminPanel {
    grid-template-columns: 1fr;
  }

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

  .visual-report {
    grid-template-columns: 0.8fr 1.2fr;
  }

  .sticky-submit {
    position: static;
    margin: 2px 0 0;
    padding: 0;
    border-top: 0;
    background: transparent;
    backdrop-filter: none;
  }
}