:root {
  --bg: #f5f7fb;
  --ink: #172033;
  --muted: #667085;
  --line: #d9dee8;
  --panel: #ffffff;
  --primary: #146b5d;
  --primary-dark: #0d4b41;
  --accent: #b85c38;
  --ok: #157347;
}

* {
  box-sizing: border-box;
}

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

a {
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 240px;
  padding: 24px 18px;
  background: #111827;
  color: #fff;
}

.brand {
  margin-bottom: 30px;
  font-size: 22px;
  font-weight: 800;
}

nav {
  display: grid;
  gap: 8px;
  margin-bottom: 30px;
}

nav a,
.ghost {
  display: block;
  width: 100%;
  padding: 11px 12px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: #e6edf8;
  text-align: left;
  font: inherit;
}

nav a:hover,
.ghost:hover {
  background: #243047;
}

.content {
  margin-left: 240px;
  padding: 28px;
}

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

h1 {
  margin: 0;
  font-size: 28px;
}

h2 {
  margin: 0 0 14px;
  font-size: 18px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: 14px;
  margin-bottom: 26px;
}

.report-metrics {
  grid-template-columns: repeat(4, minmax(180px, 1fr));
}

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

.metrics span {
  display: block;
  margin-bottom: 6px;
  font-size: 30px;
  font-weight: 800;
}

.metrics small,
dt {
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 20px;
}

.pagination a {
  color: #be2943;
  font-weight: 700;
  text-decoration: none;
}

th,
td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #eef2f7;
  color: #344054;
  font-size: 13px;
}

.status {
  display: inline-block;
  padding: 5px 8px;
  border-radius: 6px;
  background: #e8f3ef;
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 700;
}

button {
  min-height: 40px;
  border: 0;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  padding: 0 14px;
  font-weight: 800;
  cursor: pointer;
}

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

.button-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  padding: 0 14px;
  font-weight: 800;
}

.button-link:hover {
  background: var(--primary-dark);
  color: #fff;
}

button.success {
  background: var(--ok);
}

input,
select {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  background: #fff;
  color: var(--ink);
}

label {
  display: grid;
  gap: 6px;
  color: #344054;
  font-size: 14px;
  font-weight: 700;
}

.grid-form,
.filters {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  align-items: end;
  gap: 12px;
  margin-bottom: 20px;
}

.report-filters {
  display: grid;
  grid-template-columns: repeat(6, minmax(150px, 1fr));
  align-items: end;
  gap: 12px;
  margin-bottom: 20px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.split form {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.inline-form {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto;
  gap: 8px;
  margin-top: 8px;
}

.note {
  margin-bottom: 20px;
}

.section-gap {
  margin-bottom: 18px;
}

dl {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px;
  margin: 0;
}

dd {
  margin: 0;
  font-weight: 700;
}

.login-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 20px;
}

.login-box {
  display: grid;
  width: min(420px, 100%);
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 24px;
}

.alert {
  margin: 0;
  border-radius: 6px;
  background: #fff1f0;
  color: #b42318;
  padding: 10px;
  font-weight: 700;
}

.muted,
.session-badge {
  color: var(--muted);
  font-size: 13px;
}

.session-badge {
  margin-top: 20px;
  padding: 10px 12px;
  border-radius: 6px;
  background: #243047;
  color: #e6edf8;
}

.mini-form {
  display: grid;
  grid-template-columns: minmax(100px, 1fr) minmax(120px, 1fr) auto;
  gap: 8px;
  min-width: 360px;
}

@media (max-width: 860px) {
  .sidebar {
    position: static;
    width: 100%;
  }

  .content {
    margin-left: 0;
    padding: 18px;
  }

  .metrics,
  .report-metrics,
  .report-filters,
  .grid-form,
  .filters,
  .split {
    grid-template-columns: 1fr;
  }

  table {
    display: block;
    overflow-x: auto;
  }
}