:root {
  --bg: #f3f1ee;
  --surface: #fffaf4;
  --surface-2: #f8efe5;
  --text: #221b16;
  --muted: #6a5e55;
  --border: rgba(34, 27, 22, 0.14);
  --accent: #8f5735;
  --accent-strong: #704126;
  --free: #1f7a55;
  --reserved: #ad6b1d;
  --dining: #aa3f36;
  --blue: #276a8f;
  --shadow: 0 18px 40px rgba(48, 34, 22, 0.14);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(143, 87, 53, 0.08), transparent 220px),
    var(--bg);
}

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

button {
  cursor: pointer;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.72rem 0.8rem;
  color: var(--text);
  background: #fff;
  outline: none;
}

textarea {
  resize: vertical;
}

label {
  display: grid;
  gap: 0.38rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.login-view,
.admin-login {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.login-panel {
  width: min(100%, 420px);
  padding: 1.4rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.login-panel h1 {
  margin: 0;
  color: var(--accent-strong);
  font-size: 1.7rem;
}

.login-panel p {
  margin: 0.35rem 0 1.2rem;
  color: var(--muted);
}

.login-error,
.error {
  color: var(--dining);
}

.form-stack {
  display: grid;
  gap: 0.85rem;
}

.app-shell {
  max-width: 520px;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0 auto;
  padding: max(0.85rem, env(safe-area-inset-top)) 0.7rem max(1rem, env(safe-area-inset-bottom));
}

.topbar,
.admin-header,
.panel-head,
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.topbar h1,
.admin-header h1 {
  margin: 0;
  color: var(--accent-strong);
  font-size: 1.4rem;
}

.topbar p,
.admin-header p {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.btn,
.icon-btn,
.card-actions button,
.row-actions button,
.admin-tabs button {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--accent-strong);
  min-height: 42px;
  padding: 0.65rem 0.85rem;
}

.btn.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.btn.small,
.icon-btn,
.row-actions button,
.admin-tabs button {
  min-height: 36px;
  padding: 0.45rem 0.65rem;
  font-size: 0.88rem;
}

.sync-strip,
.manager-bar,
.filters {
  margin-top: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}

.sync-strip {
  padding: 0.72rem 0.85rem;
  color: var(--blue);
  font-size: 0.88rem;
}

.filters {
  display: grid;
  gap: 0.85rem;
  padding: 0.9rem;
}

.field-label {
  display: block;
  margin-bottom: 0.38rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.segment {
  min-height: 44px;
  border: 0;
  background: #fff;
  color: var(--muted);
}

.segment.active {
  background: var(--accent);
  color: #fff;
}

.manager-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  padding: 0.7rem;
}

.rooms-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-top: 0.85rem;
}

.room-card {
  position: relative;
  min-height: 128px;
  display: grid;
  align-content: start;
  gap: 0.35rem;
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem;
  background: var(--surface);
  overflow: hidden;
}

.room-card.state-free {
  border-color: rgba(31, 122, 85, 0.8);
}

.room-card.state-reserved {
  border-color: rgba(173, 107, 29, 0.9);
  background: linear-gradient(135deg, var(--surface), rgba(173, 107, 29, 0.12));
}

.room-card.state-dining {
  border-color: rgba(170, 63, 54, 0.9);
  background: linear-gradient(135deg, var(--surface), rgba(170, 63, 54, 0.12));
}

.room-card.pending::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 2px dashed rgba(39, 106, 143, 0.45);
  border-radius: 8px;
  pointer-events: none;
}

.room-title {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  align-items: flex-start;
}

.room-title strong {
  font-size: 1rem;
}

.room-title span,
.pending-tag {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: 0.18rem 0.45rem;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.72rem;
}

.room-meta,
.guest,
.deposit,
.remark {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.remark {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-actions,
.row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.25rem;
}

.card-actions button {
  min-height: 32px;
  padding: 0.32rem 0.5rem;
  font-size: 0.76rem;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: none;
  align-items: flex-end;
  background: rgba(24, 18, 13, 0.44);
  padding: 0.75rem;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  width: min(100%, 520px);
  max-height: min(86vh, 760px);
  margin: 0 auto;
  overflow: auto;
  border-radius: 12px;
  background: var(--surface);
  padding: 1rem;
  box-shadow: var(--shadow);
}

.modal h2,
.admin-panel h2,
.admin-panel h3 {
  margin: 0;
}

.modal-note {
  margin: 0;
  color: var(--muted);
}

.check-row {
  display: flex;
  grid-template-columns: auto 1fr;
  align-items: center;
}

.check-row input {
  width: auto;
}

.inline-form,
.admin-form-row {
  display: grid;
  gap: 0.55rem;
  margin-bottom: 0.85rem;
}

.list,
.table-list {
  display: grid;
  gap: 0.55rem;
}

.list-item,
.table-row {
  display: grid;
  gap: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  background: #fff;
}

.list-item span,
.table-row span,
.list-item small {
  display: block;
  margin-top: 0.18rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.empty {
  margin: 0;
  color: var(--muted);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  margin: 0.75rem 0;
}

.stats-grid div {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem;
  background: #fff;
}

.stats-grid strong {
  display: block;
  font-size: 1.35rem;
  color: var(--accent-strong);
}

.stats-grid span {
  color: var(--muted);
  font-size: 0.78rem;
}

.mini-list p,
.admin-columns p {
  margin: 0.35rem 0;
  color: var(--muted);
}

.admin-body {
  background: #f5f7f8;
}

.admin-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.2rem 0 2rem;
}

.admin-header,
.admin-panel {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  padding: 1rem;
}

.admin-tabs {
  display: flex;
  gap: 0.5rem;
  margin: 1rem 0;
}

.admin-tabs button.active {
  background: var(--accent);
  color: #fff;
}

.admin-panel {
  display: none;
}

.admin-panel.active {
  display: block;
}

.admin-form-row {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: end;
}

.table-row {
  grid-template-columns: 2fr 1fr 1fr 2fr;
  align-items: center;
}

.admin-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 720px) {
  .admin-shell {
    width: min(100% - 1rem, 520px);
  }

  .admin-tabs {
    overflow-x: auto;
  }

  .admin-form-row,
  .table-row,
  .admin-columns {
    grid-template-columns: 1fr;
  }
}