:root {
  --ink: #152322;
  --muted: #5c6b68;
  --line: #d7e0de;
  --surface: #ffffff;
  --band: #f3f7f6;
  --brand: #176f64;
  --brand-dark: #0e4f48;
  --present: #cfeedd;
  --absent: #ffe0df;
  --excused: #e4e9f7;
  --free: #fff1c8;
}

body {
  background: var(--band);
  color: var(--ink);
}

.app-navbar {
  background: var(--brand-dark);
}

.app-navbar .navbar-brand,
.app-navbar .navbar-text {
  color: #fff;
}

.app-shell {
  max-width: 1180px;
  padding: 12px;
}

.auth-panel,
.form-panel {
  max-width: 520px;
  margin: 28px auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.stack-form input,
.stack-form select,
.stack-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  min-height: 46px;
  padding: 8px 10px;
}

.page-head,
.lesson-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
}

.page-head h1,
.lesson-header h1 {
  font-size: 1.65rem;
  margin: 0;
}

.eyebrow,
.page-head p,
.lesson-header p,
.person-main span {
  color: var(--muted);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #e8eeee;
  color: var(--ink);
  font-size: .85rem;
  white-space: nowrap;
}

.status-submitted,
.status-money_received {
  background: #d7edff;
}

.status-tickets_purchased,
.status-closed {
  background: #d7f3df;
}

.status-in_progress {
  background: #fff1c8;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 8px 0 14px;
}

.summary-grid div {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.summary-grid span {
  display: block;
  color: var(--muted);
  font-size: .8rem;
}

.summary-grid strong {
  display: block;
  font-size: 1.1rem;
  overflow-wrap: anywhere;
}

.section-band {
  margin: 14px 0;
}

.section-band h2 {
  font-size: 1.2rem;
  margin: 0 0 8px;
}

.person-row,
.compact-card,
.buyer-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.person-row.state-present {
  border-color: #87c79d;
  background: var(--present);
}

.person-row.state-absent {
  border-color: #eeaaa7;
  background: var(--absent);
}

.person-row.state-excused {
  border-color: #aebbe0;
  background: var(--excused);
}

.person-main {
  display: grid;
  gap: 2px;
  margin-bottom: 10px;
}

.button-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.btn-attend {
  width: 100%;
  min-height: 54px;
  font-weight: 700;
  white-space: normal;
}

.btn-present {
  background: #198754;
  color: #fff;
}

.btn-absent {
  background: #b42318;
  color: #fff;
}

.btn-excused {
  background: #4c5a88;
  color: #fff;
}

.btn-free {
  background: #b7791f;
  color: #fff;
}

.note-form {
  margin-top: 8px;
}

.sticky-submit {
  position: sticky;
  bottom: 0;
  padding: 10px 0;
  background: linear-gradient(180deg, rgba(243, 247, 246, 0), var(--band) 28%);
}

.buyer-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 10px;
}

.buyer-card header,
.compact-card {
  display: grid;
  gap: 4px;
}

.buyer-card dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 10px;
  margin: 10px 0;
}

.buyer-card dt {
  color: var(--muted);
  font-weight: 500;
}

.buyer-card dd {
  margin: 0;
  text-align: right;
}

.inline-money,
.date-form,
.link-grid {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

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

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

.assignment-grid h2 {
  font-size: 1.2rem;
}

.message-stack {
  margin-top: 8px;
}

.empty-state {
  padding: 40px 0;
  text-align: center;
}

@media (max-width: 640px) {
  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-head,
  .lesson-header {
    display: grid;
  }

  .date-form,
  .inline-money {
    display: grid;
  }

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