:root {
  --accent: #2563eb;
  --danger: #dc2626;
  --bg: #f7f7f5;
  --surface: #ffffff;
  --surface-2: #f0f0ed;
  --border: #e2e2dd;
  --text: #1a1a18;
  --text-secondary: #6b6b66;
  --text-muted: #9c9c96;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  background: var(--bg);
  color: var(--text);
}

#app {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: #fee2e2;
  color: var(--danger);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
}

button {
  font-family: inherit;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: 13px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.calendar-header button {
  width: 28px;
  height: 28px;
  border: none;
  background: none;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.month-label {
  font-size: 14px;
  font-weight: 600;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 2px;
}

.weekday {
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 4px 0;
}
.weekday.is-saturday { color: var(--accent); }
.weekday.is-sunday { color: var(--danger); }

.day-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  height: 44px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: none;
  padding: 0;
}

.day-cell.is-past { opacity: 0.4; }
.day-cell.is-today { border-color: var(--text-muted); }
.day-cell.is-selected { background: #dbeafe; }

.day-num { font-size: 13px; }
.day-num.is-saturday { color: var(--accent); }
.day-num.is-sunday { color: var(--danger); }
.day-status { font-size: 10px; font-weight: 700; line-height: 1; }
.day-status.open { color: var(--accent); }
.day-status.full { color: var(--danger); }

.legend {
  display: flex;
  gap: 14px;
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-muted);
}
.legend .open { color: var(--accent); font-weight: 700; }
.legend .full { color: var(--danger); font-weight: 700; }

.panel {
  margin-top: 12px;
  background: var(--surface-2);
  border-radius: var(--radius);
  padding: 16px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.panel-title { font-size: 13px; font-weight: 600; }

.panel-close {
  width: 24px;
  height: 24px;
  border: none;
  background: none;
  font-size: 14px;
}

.section-label {
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.event-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.event-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 5px solid var(--border-strong, var(--border));
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.event-block:last-child { margin-bottom: 0; }

.event-block.color-0 { border-left-color: #2563eb; background: #eff6ff; }
.event-block.color-1 { border-left-color: #16a34a; background: #f0fdf4; }
.event-block.color-2 { border-left-color: #d97706; background: #fffbeb; }
.event-block.color-3 { border-left-color: #db2777; background: #fdf2f8; }
.event-block.color-4 { border-left-color: #9333ea; background: #faf5ff; }
.event-block.color-5 { border-left-color: #0891b2; background: #ecfeff; }

.event-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px;
}

.event-title { font-size: 19px; font-weight: 700; color: var(--accent); }
.event-count { font-size: 12px; font-weight: 700; }
.event-count.open { color: var(--accent); }
.event-count.full { color: var(--danger); }

.event-actions {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}

.edit-event-btn {
  border: none;
  background: none;
  padding: 0;
  font-size: 11px;
  color: var(--accent);
  text-decoration: underline;
  cursor: pointer;
}

.event-edit-form { margin-bottom: 4px; }

.event-datetime { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.event-participants { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

.participant-name {
  border: none;
  background: none;
  padding: 0;
  font-size: 12px;
  color: var(--text-secondary);
  text-decoration: underline;
  text-decoration-color: var(--border);
  cursor: pointer;
}

.entry-row { display: flex; gap: 8px; margin-top: 8px; }
.entry-row input { flex: 1; }

.entry-error { font-size: 12px; color: var(--danger); margin-top: 4px; }

.full-label { font-size: 12px; color: var(--text-muted); margin-top: 6px; display: block; }

.delete-event-btn {
  border: none;
  background: none;
  padding: 0;
  font-size: 11px;
  color: var(--text-muted);
  text-decoration: underline;
  cursor: pointer;
}

.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 100;
}

.confirm-dialog {
  background: var(--surface);
  border-radius: 12px;
  padding: 1.25rem;
  max-width: 320px;
  width: 100%;
}

.confirm-message { font-size: 14px; margin: 0 0 16px; }
.confirm-actions { display: flex; gap: 8px; justify-content: flex-end; }

.btn-danger {
  background: var(--danger);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
}

input[type="text"], input[type="time"], input[type="number"] {
  height: 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 10px;
  font-size: 13px;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
}

.form-field { margin-bottom: 10px; }
.form-field label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 4px; }
.form-field input { width: 100%; }
.form-row { display: flex; gap: 8px; }
.form-row .form-field { flex: 1; min-width: 0; }
.form-row-3 .form-field:first-child { flex: 0 0 64px; }

.comments {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.comments-label { font-size: 11px; color: var(--text-muted); margin-bottom: 6px; }

textarea[data-role="note-input"] {
  width: 100%;
  min-height: 60px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 10px;
  font-size: 13px;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
  resize: vertical;
  box-sizing: border-box;
  margin-bottom: 6px;
}

.empty-note { font-size: 13px; color: var(--text-secondary); margin: 0 0 10px; }