:root {
  --bg: #f7f7f5;
  --panel: #ffffff;
  --border: #e0ddd6;
  --text: #2b2924;
  --muted: #766f63;
  --accent: #b5651d;
  --present: #3f8f4f;
  --absent: #c0392b;
  --excused: #d68910;
  --krank: #a1332a;
  --ferien: #2f6fa8;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

.app-header {
  padding: 24px 32px 8px;
}
.app-header h1 { margin: 0; font-size: 1.6rem; }
.subtitle { margin: 4px 0 0; color: var(--muted); }

.tabs {
  display: flex;
  gap: 8px;
  padding: 0 32px;
  border-bottom: 1px solid var(--border);
}
.tab-btn {
  background: none;
  border: none;
  padding: 10px 16px;
  font-size: 1rem;
  cursor: pointer;
  color: var(--muted);
  border-bottom: 2px solid transparent;
}
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

main { padding: 24px 32px 48px; max-width: 1100px; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.panel-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 20px;
}
.panel-box h2 { margin-top: 0; font-size: 1.1rem; }

.participant-list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.participant-list li {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 6px 4px 12px;
}
.participant-list button {
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 2px 6px;
}
.participant-list button:hover { color: var(--absent); }

.inline-form { display: flex; gap: 8px; }
.inline-form input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
}
.inline-form button, .primary-btn {
  padding: 8px 14px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: white;
  cursor: pointer;
}

.quarter-select {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}
.quarter-select button {
  padding: 6px 14px;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 999px;
  cursor: pointer;
}
.quarter-select button.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  text-align: center;
  white-space: nowrap;
}
th:first-child, td:first-child { text-align: left; position: sticky; left: 0; background: var(--panel); }

.status-cell {
  cursor: pointer;
  font-weight: 600;
  min-width: 36px;
}
.status-cell.present { background: #e7f4e8; color: var(--present); }
.status-cell.absent { background: #fbe9e7; color: var(--absent); }
.status-cell.excused { background: #f5e2e0; color: var(--krank); }
.status-cell.vacation { background: #e2ecf5; color: var(--ferien); }
.status-cell.krank { background: #f5e2e0; color: var(--krank); }
.status-cell.ferien { background: #e2ecf5; color: var(--ferien); }
.status-cell.unset { color: var(--muted); }
.status-cell.disabled { color: var(--muted); cursor: default; background: var(--bg); }
.status-cell.readonly { cursor: default; }

.trainer-row td:first-child { font-weight: 700; }
.trainer-row { border-bottom: 2px solid var(--border); }

.legend { margin-top: 12px; color: var(--muted); font-size: 0.9rem; }
.status-pill { padding: 2px 8px; border-radius: 999px; margin-right: 6px; }
.status-pill.present { background: #e7f4e8; color: var(--present); }
.status-pill.absent { background: #fbe9e7; color: var(--absent); }
.status-pill.excused { background: #f5e2e0; color: var(--krank); }
.status-pill.vacation { background: #e2ecf5; color: var(--ferien); }
.status-pill.krank { background: #f5e2e0; color: var(--krank); }
.status-pill.ferien { background: #e2ecf5; color: var(--ferien); }

.invoice-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 16px;
}
.invoice-card h3 { margin: 0 0 10px; }
.invoice-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.invoice-row:last-of-type { border-bottom: none; }
.invoice-row .quarter { font-weight: 600; min-width: 80px; }
.invoice-row .amount { min-width: 90px; }
.badge {
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
  border: none;
}
.badge.open { background: #fdf2df; color: var(--excused); }
.badge.paid { background: #e7f4e8; color: var(--present); }

.invoice-form {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.invoice-form select, .invoice-form input {
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
}
.invoice-form input[type="number"] { width: 90px; }

.badge.sent { background: #e2ecf5; color: var(--ferien); }

.invoice-delete {
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 2px 6px;
  margin-left: auto;
}
.invoice-delete:hover { color: var(--absent); }

.reminder-banner {
  margin: 0 32px 16px;
  padding: 12px 18px;
  background: #fdf2df;
  border: 1px solid var(--excused);
  border-radius: 10px;
  color: var(--text);
}
.reminder-banner strong { display: block; margin-bottom: 4px; }
.reminder-banner ul { margin: 0; padding-left: 20px; }

.person-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 16px;
}
.person-card h3 { margin: 0 0 12px; }
.person-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(200px, 1fr));
  gap: 10px 16px;
}
.person-form .full { grid-column: 1 / -1; }
.person-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--muted);
}
.person-form input, .person-form select {
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  color: var(--text);
}
.person-form .checkbox-row {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}
.person-form .actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}
.saved-hint { color: var(--present); font-size: 0.85rem; }

.calc-row {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.calc-row select { padding: 4px 6px; }
.calc-row .calculated-amount { color: var(--accent); }