:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --border: #e3e6ef;
  --text: #1f2330;
  --muted: #6b7280;
  --primary: #2f56d6;
  --primary-hover: #2745b0;
  --primary-soft: #eef2ff;
  --accent: #f1b300;
  --danger: #c0392b;
  --danger-soft: #fde8e8;
  --success: #1f8a4c;
  --success-soft: #e6f5ec;
  --warn-bg: #fff7e0;
  --warn-border: #f0c419;
  --shadow: 0 1px 3px rgba(20, 30, 60, 0.06), 0 6px 18px rgba(20, 30, 60, 0.05);
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.app-header {
  background: linear-gradient(135deg, #2f56d6 0%, #5a7df2 100%);
  color: #fff;
  padding: 1.5rem 2rem;
  box-shadow: var(--shadow);
}

.app-header h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.tagline {
  margin: 0.25rem 0 0;
  opacity: 0.85;
  font-size: 0.95rem;
}

main {
  max-width: 1280px;
  margin: 1.5rem auto;
  padding: 0 1.5rem;
  display: grid;
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.5rem;
}

.card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.card-header h2 { margin: 0; }

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* Controls */
.control-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.control-row--params {
  border-top: 1px solid var(--border);
  padding-top: 0.6rem;
  margin-top: 0.2rem;
}

.file-input {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.file-input input[type="file"] {
  font-size: 0.95rem;
}

.inline-input {
  font-size: 0.9rem;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.inline-input input {
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
}

.inline-input input[type="number"] { width: 4.5rem; }
.inline-input input[type="date"] { min-width: 9.5rem; }

.caps-label { font-size: 0.85rem; color: var(--muted); font-weight: 500; }
.cap-name { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; }
.cap-input { width: 4rem !important; }
.caps-total {
  margin-left: auto;
  font-size: 0.88rem;
  color: var(--text);
  font-weight: 600;
  padding: 0.3rem 0.6rem;
  background: var(--primary-soft);
  border-radius: 6px;
}

.btn {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.55rem 1.1rem;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 120ms, color 120ms, border-color 120ms;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:not(:disabled):hover { background: var(--primary-hover); }

.btn-secondary {
  background: #fff;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-secondary:not(:disabled):hover { background: var(--primary-soft); }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
}
.btn-ghost:hover { color: var(--danger); border-color: var(--danger); }

.status {
  margin: 0 0 0 auto;
  color: var(--muted);
  font-size: 0.9rem;
}

.restore-note {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-style: italic;
}

.warnings {
  border: 1px solid var(--warn-border);
  background: var(--warn-bg);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-top: 0.5rem;
}

.warnings h3 {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.warnings ul {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.88rem;
  color: #6a4d00;
}

.hidden { display: none !important; }

/* Tables */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th, td {
  text-align: left;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--border);
}

th {
  background: #f0f3fb;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

th[data-sort]::after {
  content: ' \2195';
  color: var(--muted);
  font-size: 0.8em;
}

th.sort-asc::after { content: ' \25B2'; color: var(--primary); }
th.sort-desc::after { content: ' \25BC'; color: var(--primary); }

tbody tr { cursor: pointer; }
tbody tr:hover { background: #fafbff; }
tbody tr.selected { background: var(--primary-soft); }
tbody tr.search-hit td:first-child { box-shadow: inset 3px 0 0 var(--primary); }

td.numeric, th.numeric { text-align: right; font-variant-numeric: tabular-nums; }

.fulfillment-bar {
  display: inline-block;
  vertical-align: middle;
  width: 80px;
  height: 8px;
  background: #e6e9f4;
  border-radius: 4px;
  margin-right: 0.5rem;
  overflow: hidden;
}
.fulfillment-bar > span {
  display: block;
  height: 100%;
  background: var(--success);
}
.fulfillment-bar.low > span { background: var(--danger); }
.fulfillment-bar.mid > span { background: var(--accent); }

.vip-badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: var(--accent);
  color: #4a3a00;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.vip-toggle {
  appearance: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted);
  cursor: pointer;
  transition: background 100ms, color 100ms, border-color 100ms;
}
.vip-toggle:hover { border-color: var(--accent); color: #4a3a00; }
.vip-toggle.on { background: var(--accent); color: #4a3a00; border-color: var(--accent); }

.expander-col { width: 2rem; }
.expander {
  display: inline-block;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--muted);
  font-size: 0.9rem;
  width: 1.5rem;
  text-align: center;
  padding: 0;
}
.expander:hover { color: var(--primary); }

tr.kids-row > td { padding: 0; background: #fafbff; }
.kids-editor {
  padding: 0.6rem 1rem 0.8rem 3rem;
  display: grid;
  gap: 0.35rem;
}
.kids-editor .kid-edit {
  display: grid;
  grid-template-columns: 1.2fr auto auto auto;
  gap: 0.6rem;
  align-items: center;
  font-size: 0.88rem;
}
.kids-editor .kid-edit select {
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  background: #fff;
}
.kids-editor .kid-edit label {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--muted);
  font-size: 0.8rem;
}
.kids-editor .kid-edit input {
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  background: #fff;
}
.kids-editor .kid-edit input:focus {
  outline: 2px solid var(--primary-soft);
  border-color: var(--primary);
}
.kids-editor .kid-name-cell {
  font-weight: 500;
  color: var(--text);
}
.kids-editor .kid-meta {
  color: var(--muted);
  font-size: 0.78rem;
}
.kids-editor .kid-empty {
  color: var(--muted);
  font-style: italic;
  padding: 0.25rem 0;
}

tr.empty td {
  text-align: center;
  color: var(--muted);
  padding: 1.25rem;
}

.ledger-search {
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  min-width: 18rem;
}
.ledger-search:focus {
  outline: 2px solid var(--primary-soft);
  border-color: var(--primary);
}

/* Calendar */
.calendar {
  display: grid;
  gap: 1.25rem;
}

.calendar-month {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 0.75rem 1rem;
  background: #fdfdff;
}

.calendar-month h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  text-transform: capitalize;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.calendar-grid .dow {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  padding-bottom: 0.25rem;
}

.day {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.35rem 0.4rem;
  min-height: 56px;
  background: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  font-size: 0.85rem;
  transition: transform 80ms, box-shadow 80ms;
}

.day:hover { transform: translateY(-1px); box-shadow: 0 2px 6px rgba(20,30,60,.08); }
.day.empty-cell { background: transparent; border: none; cursor: default; min-height: 0; padding: 0; }
.day.out-period {
  background: repeating-linear-gradient(45deg, #fafbff, #fafbff 6px, #f1f2f7 6px, #f1f2f7 12px);
  color: var(--muted);
  cursor: not-allowed;
}
.day.out-period:hover { transform: none; box-shadow: none; }

.day .num { font-weight: 600; }
.day .badge {
  align-self: flex-end;
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
  background: #eef2ff;
  color: var(--primary);
}

.day.fill-low  .badge { background: #fbe7e3; color: var(--danger); }
.day.fill-mid  .badge { background: #fff3cf; color: #8a6a00; }
.day.fill-high .badge { background: var(--success-soft); color: var(--success); }
.day.fill-over .badge { background: var(--danger); color: #fff; }

.day.selected {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.day.search-requested { box-shadow: inset 0 0 0 2px #6998D0; }
.day.search-granted   { background: var(--success-soft); box-shadow: inset 0 0 0 2px var(--success); }
.day.search-missed    { background: var(--danger-soft);  box-shadow: inset 0 0 0 2px var(--danger); }

/* Roster */
.roster-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.selected-date {
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.capacity-badge {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: #eef2ff;
  color: var(--primary);
}

.capacity-badge.full { background: #fde8e8; color: var(--danger); }
.capacity-badge.over { background: var(--danger); color: #fff; }

.roster-add {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: #fafbff;
  border: 1px dashed var(--border);
  border-radius: 8px;
}
.roster-add label {
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  flex: 1;
}
.roster-add select {
  flex: 1;
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
}

.roster-body {
  display: grid;
  gap: 1rem;
}

.roster-group {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  background: #fafbff;
}

.roster-group h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  justify-content: space-between;
}

.roster-group .count {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.85rem;
}

.roster-group.over-cap {
  background: #fff0f0;
  border-color: var(--danger);
}
.roster-group.over-cap h3 { color: var(--danger); }
.roster-group.over-cap .count {
  color: var(--danger);
  font-weight: 600;
}

.roster-group ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.25rem 0.75rem;
  font-size: 0.92rem;
}

.roster-group li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.kid-name .household-hint {
  color: var(--muted);
  font-size: 0.82rem;
}

.btn-remove {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0 0.2rem;
  line-height: 1;
}
.btn-remove:hover { color: var(--danger); }

.placeholder {
  color: var(--muted);
  font-style: italic;
  margin: 0;
}

.app-footer {
  text-align: center;
  padding: 1.25rem;
  color: var(--muted);
}

@media (max-width: 700px) {
  .calendar-grid { gap: 2px; }
  .day { min-height: 48px; padding: 0.25rem 0.3rem; font-size: 0.78rem; }
  .day .badge { font-size: 0.65rem; padding: 0.05rem 0.3rem; }
}