:root {
  --bg: #f4efe6;
  --paper: #fffaf2;
  --ink: #2a2118;
  --ink-soft: #6a5b4a;
  --gold: #b08a3e;
  --gold-line: rgba(176, 138, 62, 0.35);
  --radius: 14px;
  --shadow: 0 18px 50px rgba(28, 20, 12, 0.12);
  --font-display: "PingFang TC", "Hiragino Sans CNS", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-display);
  color: var(--ink);
  background: linear-gradient(180deg, #ebe3d4 0%, var(--bg) 40%, #f8f4ec 100%);
}

.app {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 1.25rem 1rem 2rem;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.kicker {
  margin: 0 0 0.25rem;
  color: var(--gold);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  font-weight: 700;
}

.brand {
  margin: 0;
  font-size: 1.65rem;
  letter-spacing: 0.12em;
}

.toolbar {
  display: flex;
  align-items: flex-end;
  gap: 0.65rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.field-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.field input {
  border: 1px solid var(--gold-line);
  border-radius: 10px;
  background: var(--paper);
  padding: 0.55rem 0.7rem;
  font: inherit;
  color: var(--ink);
}

.btn {
  border: 1px solid var(--gold-line);
  border-radius: 999px;
  background: var(--paper);
  padding: 0.55rem 1rem;
  font: inherit;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.55;
  cursor: default;
}

.btn.is-loading {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  opacity: 1;
  pointer-events: none;
}

.btn-spinner {
  width: 0.85rem;
  height: 0.85rem;
  border: 2px solid rgba(42, 33, 24, 0.2);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex: 0 0 auto;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

body.is-busy {
  cursor: progress;
}

body.is-busy .table-panel,
body.is-busy .roster-form {
  opacity: 0.72;
  pointer-events: none;
}

.btn-tab.is-active,
#allDatesBtn.is-active {
  background: #f7eedc;
  border-color: var(--gold);
}

.btn-primary {
  background: #f7eedc;
}

.btn-small {
  padding: 0.35rem 0.65rem;
  font-size: 0.82rem;
}

.btn-danger {
  color: #8b3d2f;
}

.view-tabs {
  display: flex;
  gap: 0.35rem;
}

.section-title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.roster-form {
  margin-bottom: 1rem;
  padding: 1rem;
  border: 1px solid var(--gold-line);
  border-radius: var(--radius);
  background: var(--paper);
}

.form-hint {
  margin: 0 0 0.75rem;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.65rem;
}

.form-row .field.grow {
  flex: 1 1 220px;
}

.id-cell {
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.cell-input {
  width: 100%;
  min-width: 6rem;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  padding: 0.35rem 0.4rem;
  font: inherit;
  color: var(--ink);
}

.cell-input:focus {
  outline: none;
  border-color: var(--gold-line);
  background: #fffdf8;
}

.actions {
  display: flex;
  gap: 0.35rem;
}

.stats {
  margin: 0 0 0.5rem;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.alert {
  min-height: 1.2rem;
  margin: 0 0 0.75rem;
  color: #8b3d2f;
  font-size: 0.88rem;
}

.table-panel {
  border: 1px solid var(--gold-line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.table-toolbar {
  display: flex;
  justify-content: flex-start;
  align-items: flex-end;
  gap: 0.75rem;
  padding: 0.85rem 0.9rem 0.7rem;
  border-bottom: 1px solid rgba(176, 138, 62, 0.18);
  background: #fbf6ec;
}

.search-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  width: min(320px, 100%);
}

.search-field input {
  width: 100%;
  border: 1px solid var(--gold-line);
  border-radius: 10px;
  background: #fffdf8;
  padding: 0.55rem 0.7rem;
  font: inherit;
  color: var(--ink);
}

.search-field input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(176, 138, 62, 0.15);
}

.table-wrap {
  overflow: auto;
}

.roster-table {
  min-width: 520px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.data-table th,
.data-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid rgba(176, 138, 62, 0.18);
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}

.data-table th {
  position: sticky;
  top: 0;
  background: #f7eedc;
  color: var(--ink);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  z-index: 1;
}

.data-table tbody tr:hover {
  background: rgba(176, 138, 62, 0.06);
}

.data-table td {
  font-size: 0.92rem;
}

.data-table .empty {
  text-align: center;
  color: var(--ink-soft);
  padding: 2rem 1rem;
}

@media (max-width: 720px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar {
    flex-wrap: wrap;
  }
}