:root {
  --bg: #eef2f6;
  --surface: #ffffff;
  --surface-soft: #f7f9fc;
  --ink: #1f2937;
  --muted: #6b7280;
  --brand: #124071;
  --brand-2: #1f7a8c;
  --ok: #0f766e;
  --warn: #b45309;
  --danger: #b91c1c;
  --border: #d6dde8;
  --radius: 14px;
  --shadow: 0 14px 30px rgba(18, 64, 113, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 0%, rgba(31, 122, 140, 0.12), transparent 40%),
    radial-gradient(circle at 100% 20%, rgba(18, 64, 113, 0.14), transparent 30%),
    var(--bg);
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: linear-gradient(180deg, #102a43, #1b365d);
  color: #fff;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.brand {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.menu a {
  color: #e6edf5;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 10px;
}

.menu a:hover {
  background: rgba(255, 255, 255, 0.13);
}

.sidebar-footer {
  margin-top: auto;
}

.content {
  padding: 20px 26px 32px;
  overflow: auto;
}

.page-head h2 {
  margin-bottom: 4px;
}

.metric-card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 18px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.metric-grid span {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

.metric-grid strong {
  font-size: 1.1rem;
}

.quick-tools,
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
}

.table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  max-height: 72vh;
  background: var(--surface);
}

.schedule-table {
  width: max-content;
  border-collapse: separate;
  border-spacing: 0;
  min-width: 100%;
}

.schedule-table th,
.schedule-table td {
  border-right: 1px solid #e8eef6;
  border-bottom: 1px solid #e8eef6;
  min-width: 98px;
  padding: 8px;
  background: #fff;
}

.schedule-table th {
  position: sticky;
  top: 0;
  z-index: 4;
  background: #f0f5fa;
  text-align: center;
  font-size: 0.82rem;
}

.sticky-head {
  box-shadow: 0 1px 0 #dce6f2;
}

.sticky-col {
  position: sticky;
  left: 0;
  z-index: 3;
  background: #f7fbff !important;
}

.check-col {
  left: 0;
  min-width: 44px !important;
  max-width: 44px !important;
}

.name-col {
  left: 44px;
  min-width: 220px !important;
  max-width: 220px !important;
}

.shift-select {
  min-width: 80px;
  font-weight: 700;
  border: 1px solid #c8d5e7;
}

.locked-cell,
.locked-head {
  background: #eceff4 !important;
}

.shift-select.is-missing {
  border-color: var(--danger);
  box-shadow: 0 0 0 0.18rem rgba(185, 28, 28, 0.14);
}

.shift-select.saved {
  border-color: var(--ok);
}

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.login-card {
  width: min(96vw, 430px);
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 26px;
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
  }

  .sidebar-footer {
    margin-top: 0;
    margin-left: auto;
  }
}