:root {
  --nav: #123760;
  --nav-2: #0b2544;
  --accent: #0f766e;
  --warn: #b7791f;
  --danger: #b91c1c;
  --text: #152033;
  --muted: #667085;
  --line: #d9e2ec;
  --bg: #f4f7fb;
  --panel: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
}

a { color: var(--nav); text-decoration: none; }
a:hover { text-decoration: underline; }

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #eef5fb, #dfeeea);
  padding: 24px;
}

.login-card {
  width: min(420px, 100%);
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 32px;
  box-shadow: 0 24px 60px rgba(18, 55, 96, 0.14);
}

.login-logo { width: 150px; display: block; margin-bottom: 24px; }
.login-card h1 { margin: 0; font-size: 30px; }
.login-card p { color: var(--muted); margin: 8px 0 24px; }

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

.sidebar {
  background: var(--nav);
  color: white;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  color: white;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 18px;
}

.brand img { width: 44px; height: auto; }
.sidebar nav { display: grid; gap: 6px; }
.sidebar nav a {
  color: white;
  padding: 11px 12px;
  border-radius: 6px;
  text-decoration: none;
}
.sidebar nav a:hover { background: rgba(255,255,255,.12); }
.sidebar form { margin-top: auto; }

.content { min-width: 0; padding: 24px; }

.topbar {
  height: 52px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  padding: 0 18px;
  margin-bottom: 22px;
}

.topbar strong {
  color: var(--accent);
  font-size: 13px;
}

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.actions.compact {
  gap: 6px;
  flex-wrap: nowrap;
}

h1, h2 { margin: 0; }
h1 { font-size: 28px; }
h2 { font-size: 18px; margin-bottom: 16px; }
.page-head p { margin: 6px 0 0; color: var(--muted); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 18px;
}

.visitor-form-panel {
  max-width: 1120px;
}

.narrow-form {
  max-width: 720px;
}

.login-link {
  text-align: center;
  font-weight: 700;
}

.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.wide-left { grid-template-columns: minmax(0, 1.4fr) minmax(360px, .8fr); align-items: start; }

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.metric {
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}
.metric span { color: var(--muted); display: block; margin-bottom: 10px; }
.metric strong { font-size: 32px; color: var(--nav); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
  text-decoration: none;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn.ghost { background: transparent; }
.btn.light { color: white; border-color: rgba(255,255,255,.35); width: 100%; }

.form-grid, .stack { display: grid; gap: 13px; }
.form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid h2, .form-grid .alert, .form-grid .notice, .form-grid button, .form-grid textarea, .form-grid label:has(textarea) { grid-column: 1 / -1; }

label { display: grid; gap: 6px; color: #344054; font-weight: 700; }
label small { color: var(--muted); font-weight: 400; }
input, select, textarea {
  width: 100%;
  min-height: 40px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  padding: 9px 10px;
  font: inherit;
  background: white;
}
textarea { min-height: 86px; resize: vertical; }
.check { display: flex; flex-direction: row; align-items: center; gap: 8px; font-weight: 600; }
.check input { width: auto; min-height: auto; }

.filters {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 180px 180px auto auto auto;
  gap: 10px;
  align-items: center;
}

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
td small { display: block; color: var(--muted); margin-top: 4px; }

.badge {
  display: inline-flex;
  border-radius: 999px;
  padding: 5px 9px;
  background: #e7f4f1;
  color: #075e54;
  font-size: 12px;
  font-weight: 700;
}

.alert {
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 14px;
  background: #e7f4f1;
  color: #075e54;
  border: 1px solid #b8ded7;
}
.alert.error { background: #fee2e2; color: var(--danger); border-color: #fecaca; }
.alert.warning { background: #fff7df; color: var(--warn); border-color: #f3d98b; }

.notice {
  display: grid;
  gap: 4px;
  border: 1px solid #b8ded7;
  border-radius: 8px;
  padding: 12px 14px;
  background: #f0faf8;
  color: #075e54;
}
.notice span { color: var(--muted); }

.empty {
  color: var(--muted);
  background: #f8fafc;
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 18px;
}

.details dl {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 12px;
}
.details dt { color: var(--muted); }
.details dd { margin: 0; }

.timeline { display: grid; gap: 12px; }
.timeline-item {
  border-left: 4px solid var(--accent);
  background: #f8fafc;
  padding: 12px 14px;
  border-radius: 0 8px 8px 0;
}
.timeline-item span, .timeline-item small { display: block; color: var(--muted); margin-top: 4px; }

.chart-panel {
  min-height: 360px;
}

.chart-panel canvas {
  display: block;
  width: 100%;
  height: 280px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}

@media (max-width: 980px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    height: auto;
    padding: 14px;
  }
  .sidebar nav { grid-template-columns: repeat(4, 1fr); }
  .sidebar form { margin-top: 0; }
  .content { padding: 16px; }
  .grid.two, .grid.wide-left, .metrics { grid-template-columns: 1fr; }
  .filters { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .page-head { display: grid; }
  .actions { flex-wrap: wrap; }
  .form-grid { grid-template-columns: 1fr; }
  .filters { grid-template-columns: 1fr; }
  .sidebar nav { grid-template-columns: 1fr 1fr; }
  .topbar { justify-content: flex-start; }
}