:root {
  --ssb-bg: #eef1f5;
  --ssb-panel: #ffffff;
  --ssb-panel-soft: #f8fafc;
  --ssb-border: #cfd6df;
  --ssb-border-soft: #e3e8ef;
  --ssb-text: #1f2937;
  --ssb-muted: #667085;
  --ssb-heading: #111827;
  --ssb-blue: #1f6fb2;
  --ssb-blue-dark: #15598f;
  --ssb-green: #16835f;
  --ssb-orange: #f47b20;
  --ssb-red: #b42318;
  --ssb-sidebar: #263746;
  --ssb-sidebar-dark: #1f2d3a;
  --ssb-font: Arial, Helvetica, sans-serif;
  --ssb-radius: 4px;
  --ssb-shadow: 0 1px 2px rgba(16,24,40,.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--ssb-font);
  color: var(--ssb-text);
  background: var(--ssb-bg);
  font-size: 13px;
}

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

a:hover {
  text-decoration: underline;
}

.ssb-topbar {
  height: 48px;
  background: #ffffff;
  border-bottom: 1px solid var(--ssb-border);
  display: flex;
  align-items: center;
  padding: 0 18px;
  gap: 18px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.ssb-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ssb-heading);
  min-width: 210px;
}

.ssb-brand-mark {
  width: 26px;
  height: 26px;
  background: var(--ssb-orange);
  border-radius: 3px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
}

.ssb-context {
  flex: 1;
  color: var(--ssb-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ssb-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.ssb-shell {
  display: grid;
  grid-template-columns: 235px minmax(0, 1fr);
  min-height: calc(100vh - 48px);
}

.ssb-sidebar {
  background: var(--ssb-sidebar);
  color: #d9e3ec;
  border-right: 1px solid #1c2833;
  padding: 10px 0;
}

.ssb-nav-section {
  padding: 11px 14px 5px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #9fb0bf;
  font-weight: 700;
}

.ssb-nav a {
  display: block;
  padding: 8px 14px;
  color: #e8eef5;
  border-left: 3px solid transparent;
}

.ssb-nav a:hover {
  background: var(--ssb-sidebar-dark);
  text-decoration: none;
}

.ssb-nav a.active {
  background: #1d5f92;
  border-left-color: var(--ssb-orange);
}

.ssb-main {
  min-width: 0;
  padding: 18px;
}

.ssb-page-head {
  background: var(--ssb-panel);
  border: 1px solid var(--ssb-border);
  border-radius: var(--ssb-radius);
  box-shadow: var(--ssb-shadow);
  padding: 14px 16px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.ssb-page-title {
  flex: 1;
}

.ssb-page-title h1 {
  margin: 0;
  font-size: 19px;
  line-height: 1.2;
  color: var(--ssb-heading);
}

.ssb-page-title p {
  margin: 4px 0 0;
  color: var(--ssb-muted);
}

.ssb-grid {
  display: grid;
  gap: 14px;
}

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

.ssb-grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ssb-card {
  background: var(--ssb-panel);
  border: 1px solid var(--ssb-border);
  border-radius: var(--ssb-radius);
  box-shadow: var(--ssb-shadow);
}

.ssb-card-head {
  padding: 11px 13px;
  border-bottom: 1px solid var(--ssb-border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.ssb-card-head strong {
  font-size: 14px;
  color: var(--ssb-heading);
}

.ssb-card-body {
  padding: 13px;
}

.ssb-stat {
  display: grid;
  gap: 4px;
}

.ssb-stat .num {
  font-size: 24px;
  font-weight: 700;
  color: var(--ssb-heading);
}

.ssb-stat .label {
  color: var(--ssb-muted);
}

.ssb-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 30px;
  padding: 6px 11px;
  border-radius: 3px;
  border: 1px solid var(--ssb-border);
  background: #ffffff;
  color: var(--ssb-text);
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  font-size: 12px;
}

.ssb-button:hover {
  text-decoration: none;
  background: #f3f6fa;
}

.ssb-button.primary {
  color: #fff;
  border-color: var(--ssb-blue-dark);
  background: var(--ssb-blue);
}

.ssb-button.primary:hover {
  background: var(--ssb-blue-dark);
}

.ssb-button.orange {
  color: #fff;
  border-color: #cf6417;
  background: var(--ssb-orange);
}

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

.ssb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.ssb-table th,
.ssb-table td {
  padding: 8px 9px;
  border-bottom: 1px solid var(--ssb-border-soft);
  text-align: left;
  vertical-align: top;
}

.ssb-table th {
  background: #f4f6f9;
  color: #344054;
  font-weight: 700;
  border-bottom-color: var(--ssb-border);
}

.ssb-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 700;
  border: 1px solid var(--ssb-border);
  background: #fff;
}

.ssb-pill.green {
  color: var(--ssb-green);
  border-color: #a7d8c2;
  background: #ecfdf5;
}

.ssb-pill.orange {
  color: #9a4b11;
  border-color: #ffd6a8;
  background: #fff7ed;
}

.ssb-pill.blue {
  color: var(--ssb-blue-dark);
  border-color: #b9d8f2;
  background: #eff8ff;
}

.ssb-pill.red {
  color: var(--ssb-red);
  border-color: #fecdca;
  background: #fef3f2;
}

.ssb-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.ssb-field label {
  display: block;
  font-weight: 700;
  color: #344054;
  margin-bottom: 4px;
}

.ssb-input,
.ssb-select,
.ssb-textarea {
  width: 100%;
  border: 1px solid var(--ssb-border);
  border-radius: 3px;
  padding: 7px 8px;
  min-height: 32px;
  background: #fff;
  font-family: var(--ssb-font);
  font-size: 13px;
}

.ssb-textarea {
  min-height: 72px;
}

.ssb-help {
  color: var(--ssb-muted);
  font-size: 12px;
  margin-top: 4px;
}

.ssb-hero {
  background: linear-gradient(135deg, #203344, #13202b);
  color: #fff;
  border-bottom: 4px solid var(--ssb-orange);
}

.ssb-hero-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 54px 18px;
}

.ssb-hero h1 {
  max-width: 780px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1;
  letter-spacing: -.04em;
  margin: 0 0 14px;
}

.ssb-hero p {
  max-width: 760px;
  font-size: 17px;
  line-height: 1.48;
  color: #d8e1ea;
  margin: 0;
}

.ssb-public-nav {
  max-width: 1120px;
  margin: 0 auto;
  height: 50px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 18px;
}

.ssb-public-nav a {
  color: #fff;
  font-weight: 700;
}

.ssb-public-nav .brand {
  margin-right: auto;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 800;
}

.ssb-content {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px;
}

.ssb-room-card {
  display: grid;
  grid-template-columns: 180px minmax(0,1fr);
  gap: 14px;
}

.ssb-room-photo {
  background: linear-gradient(135deg, #cfd8e3, #eef2f7);
  border: 1px solid var(--ssb-border);
  border-radius: 3px;
  min-height: 120px;
  display: grid;
  place-items: center;
  color: #64748b;
  font-weight: 700;
}

.ssb-panel-page {
  background: #111827;
  color: #fff;
  min-height: 100vh;
  padding: 20px;
  display: grid;
  align-items: stretch;
}

.ssb-panel {
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 12px;
  background: #172033;
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
}

.ssb-panel-header {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.ssb-panel-header h1 {
  margin: 0;
  font-size: clamp(26px, 5vw, 50px);
}

.ssb-panel-status {
  font-size: clamp(24px, 6vw, 64px);
  font-weight: 800;
  color: #34d399;
}

.ssb-panel-body {
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
}

.ssb-panel-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px;
}

.ssb-panel-button {
  border: 0;
  border-radius: 10px;
  min-height: 88px;
  font-size: 22px;
  font-weight: 800;
  background: #2563eb;
  color: #fff;
}

.ssb-panel-button.secondary {
  background: #334155;
}

.ssb-qr {
  background: #fff;
  color: #111827;
  border-radius: 10px;
  display: grid;
  place-items: center;
  min-height: 220px;
  font-weight: 800;
  text-align: center;
  padding: 16px;
}

.ssb-mobile-menu {
  display: none;
}

@media (max-width: 820px) {
  body {
    font-size: 14px;
  }

  .ssb-topbar {
    height: auto;
    min-height: 48px;
    flex-wrap: wrap;
    padding: 10px 12px;
  }

  .ssb-brand {
    min-width: 0;
  }

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

  .ssb-sidebar {
    display: none;
  }

  .ssb-mobile-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 10px 12px;
    background: #fff;
    border-bottom: 1px solid var(--ssb-border);
  }

  .ssb-mobile-menu a {
    border: 1px solid var(--ssb-border);
    border-radius: 999px;
    padding: 6px 10px;
    background: #f8fafc;
  }

  .ssb-main {
    padding: 12px;
  }

  .ssb-page-head {
    align-items: stretch;
    flex-direction: column;
  }

  .ssb-grid.cols-2,
  .ssb-grid.cols-3,
  .ssb-form-grid,
  .ssb-panel-body {
    grid-template-columns: 1fr;
  }

  .ssb-room-card {
    grid-template-columns: 1fr;
  }

  .ssb-panel-actions {
    grid-template-columns: 1fr;
  }

  .ssb-panel-button {
    min-height: 64px;
    font-size: 18px;
  }

  .ssb-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .ssb-actions .ssb-button {
    flex: 1;
  }

  .ssb-table,
  .ssb-table thead,
  .ssb-table tbody,
  .ssb-table th,
  .ssb-table td,
  .ssb-table tr {
    display: block;
  }

  .ssb-table thead {
    display: none;
  }

  .ssb-table tr {
    border: 1px solid var(--ssb-border-soft);
    background: #fff;
    margin-bottom: 10px;
    border-radius: 4px;
    overflow: hidden;
  }

  .ssb-table td {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 8px;
    border-bottom: 1px solid var(--ssb-border-soft);
  }

  .ssb-table td::before {
    content: attr(data-label);
    font-weight: 700;
    color: #475467;
  }
}