:root {
  --bg: #f4f6f3;
  --surface: #ffffff;
  --surface-2: #eef3ee;
  --ink: #18211b;
  --muted: #68736c;
  --line: #dce3dd;
  --primary: #276749;
  --primary-2: #1f5139;
  --accent: #b7791f;
  --danger: #b83232;
  --shadow: 0 16px 40px rgba(24, 33, 27, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

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

button,
a.report-card {
  transition:
    transform 0.15s ease,
    background 0.15s ease,
    border-color 0.15s ease;
}

button:hover,
a.report-card:hover {
  transform: translateY(-1px);
}

.boot,
.loading {
  padding: 24px;
  color: var(--muted);
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(440px, 100%);
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 28px;
}

.auth-card h1,
.topbar h1 {
  margin: 12px 0 6px;
  font-size: clamp(26px, 4vw, 38px);
  letter-spacing: 0;
}

.auth-card p,
.eyebrow,
.hint,
small,
.invoice p,
.course-card p {
  color: var(--muted);
}

.shell {
  width: min(1500px, 100%);
  margin: 0 auto;
  padding: 24px;
}

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

.eyebrow {
  margin: 0;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.branch-filter {
  min-width: 240px;
  color: var(--muted);
}

.branch-filter select {
  min-height: 40px;
  background: var(--surface);
}

.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  margin-bottom: 16px;
}

.tabs button,
.ghost,
.primary,
.secondary {
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  min-height: 40px;
  padding: 9px 14px;
  white-space: nowrap;
}

.tabs button,
.ghost {
  background: var(--surface);
  color: var(--ink);
}

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

.primary {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
  font-weight: 700;
}

.primary:hover {
  background: var(--primary-2);
}

.secondary {
  border-color: #c9d5cd;
  background: var(--surface-2);
  color: var(--ink);
  font-weight: 700;
}

button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.content {
  display: grid;
  gap: 16px;
}

.grid {
  display: grid;
  gap: 12px;
}

.cards {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.metric {
  min-height: 126px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 22px rgba(24, 33, 27, 0.04);
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}

.metric strong {
  display: block;
  margin-top: 14px;
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.05;
}

.metric em {
  color: var(--muted);
  font-style: normal;
  font-size: 13px;
}

.metric.warn strong {
  color: var(--danger);
}

.metric.count strong {
  color: var(--primary);
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.wide-left {
  grid-template-columns: minmax(0, 1.4fr) minmax(340px, 0.6fr);
}

.side-stack {
  display: grid;
  gap: 16px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  box-shadow: 0 8px 22px rgba(24, 33, 27, 0.04);
}

.panel h2 {
  margin: 0 0 14px;
  font-size: 20px;
  letter-spacing: 0;
}

.panel h3 {
  margin: 6px 0;
  font-size: 17px;
}

.stack {
  display: grid;
  gap: 12px;
}

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

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #cfd8d1;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  min-height: 40px;
  padding: 9px 10px;
}

textarea {
  resize: vertical;
}

.check {
  display: flex;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 8px;
  color: var(--ink);
}

.check input {
  width: 18px;
  min-height: 18px;
}

.hint {
  margin: 0;
  padding: 10px 12px;
  border-radius: 8px;
  background: #f6faf6;
  border: 1px solid #dce9df;
}

.alert {
  margin: 0 0 14px;
  padding: 12px 14px;
  background: #fff5f5;
  border: 1px solid #fed7d7;
  border-radius: 8px;
  color: #8b1e1e;
}

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

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 11px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

td small {
  display: block;
  margin-top: 3px;
}

.num {
  text-align: right;
  white-space: nowrap;
}

.empty {
  color: var(--muted);
  padding: 18px 0;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  background: #edf2f7;
  color: #2d3748;
  font-size: 12px;
  font-weight: 800;
}

.pill.active,
.pill.paid {
  background: #dcfce7;
  color: #166534;
}

.pill.inactive,
.pill.unpaid {
  background: #fee2e2;
  color: #991b1b;
}

.pill.partial {
  background: #fef3c7;
  color: #92400e;
}

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

.course-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 190px;
  padding: 14px;
  background: #fbfdfb;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.course-card dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 14px 0 0;
}

.course-card dt {
  color: var(--muted);
  font-size: 12px;
}

.course-card dd {
  margin: 4px 0 0;
  font-weight: 800;
}

.invoice-list {
  display: grid;
  gap: 10px;
}

.invoice {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfb;
}

.invoice p {
  margin: 0;
  font-size: 13px;
}

.invoice-money {
  text-align: right;
  white-space: nowrap;
}

.invoice-money strong {
  display: block;
  font-size: 22px;
}

.invoice-money span {
  color: var(--muted);
  font-size: 12px;
}

.pay-form {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 130px 150px 110px minmax(120px, 1fr) auto;
  gap: 8px;
  align-items: center;
}

.mini-list {
  display: grid;
  gap: 10px;
}

.mini-list div {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.mini-list strong,
.mini-list span {
  display: block;
}

.mini-list span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.report-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.report-card {
  display: block;
  padding: 18px;
  min-height: 130px;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfb;
  font-weight: 800;
}

.report-card span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 18px 0;
}

@media (max-width: 1180px) {
  .cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .two-col,
  .wide-left {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .shell {
    padding: 16px;
  }

  .topbar {
    display: grid;
  }

  .top-actions,
  .branch-filter {
    width: 100%;
  }

  .cards,
  .course-grid,
  .form-grid,
  .report-grid {
    grid-template-columns: 1fr;
  }

  .invoice {
    grid-template-columns: 1fr;
  }

  .invoice-money {
    text-align: left;
  }

  .pay-form {
    grid-template-columns: 1fr;
  }

  .tabs button {
    min-width: max-content;
  }
}