:root {
  --bg: #f1f5f9;
  --sidebar: #0f172a;
  --sidebar-text: #cbd5e1;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --card: #fff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --success: #059669;
  --warning: #d97706;
  --danger: #dc2626;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "Microsoft JhengHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: auto;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 0.875rem; }

/* Login */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #1e3a8a, #2563eb 40%, #93c5fd);
}
.login-card {
  width: min(420px, 92vw);
  background: var(--card);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.25);
}
.login-brand { text-align: center; margin-bottom: 1.5rem; }
.login-brand .logo { font-size: 2.5rem; }
.login-brand h1 { margin: 0.5rem 0 0; }
.login-brand p { margin: 0.25rem 0 0; color: var(--muted); }
.login-form label {
  display: block;
  margin-bottom: 0.875rem;
  font-size: 0.875rem;
  font-weight: 600;
}
.login-form input {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.75rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
}
@media (max-width: 768px) {
  .login-page {
    padding: 1rem;
    align-items: center;
  }
  .login-card {
    width: 100%;
    max-width: 420px;
    padding: 1.75rem 1.25rem;
  }
  .login-brand .logo { font-size: 3rem; }
  .login-brand h1 { font-size: 1.6rem; }
  .login-brand p { font-size: 1rem; }
  .login-form label { font-size: 1rem; margin-bottom: 1rem; }
  .login-form input {
    padding: 1rem 0.9rem;
    font-size: 16px;
  }
  .login-page .btn.primary.full {
    padding: 0.95rem 1rem;
    font-size: 1.05rem;
    margin-top: 0.25rem;
  }
}
.login-remember {
  display: flex !important;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500 !important;
  color: var(--muted) !important;
  cursor: pointer;
  margin-bottom: 0.25rem;
}
.login-remember input[type="checkbox"] {
  width: auto;
  margin: 0;
  cursor: pointer;
}
.error { color: var(--danger); font-size: 0.875rem; margin-top: 0.75rem; }
.boot-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  font-size: 1.125rem;
  color: var(--muted, #64748b);
}
.boot-loading.boot-error { color: var(--danger, #dc2626); font-weight: 600; }
.login-error-banner {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  text-align: center;
  font-weight: 600;
}

/* Layout */
.app { display: flex; min-height: 100vh; min-width: 1200px; }
.sidebar {
  width: 240px;
  background: var(--sidebar);
  color: var(--sidebar-text);
  padding: 1rem 0;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.sidebar-brand {
  padding: 0 1.25rem 1rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 0.5rem;
}
.sidebar a {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.75rem 1.25rem;
  color: inherit;
  text-decoration: none;
  font-size: 0.925rem;
}
.sidebar a:hover, .sidebar a.active {
  background: rgba(37, 99, 235, 0.25);
  color: #fff;
}
.sidebar .admin-section {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-right { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
#menuBtn { display: none; }
.user-chip { display: flex; align-items: center; gap: 0.5rem; font-weight: 600; }
.page { padding: 1.25rem; }

/* Components */
h2.page-title { margin: 0 0 1rem; font-size: 1.5rem; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}
.card-title {
  font-weight: 700;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }

.btn {
  border: none;
  border-radius: 10px;
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  background: #e2e8f0;
  color: var(--text);
}
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { background: #fee2e2; color: var(--danger); }
.btn.ghost { background: transparent; border: 1px solid var(--border); }
.btn.full { width: 100%; }
.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.8rem; }
.icon-btn {
  border: none;
  background: transparent;
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  background: #dbeafe;
  color: #1d4ed8;
  font-weight: 600;
}
.badge.admin { background: #fef3c7; color: #b45309; }

.toolbar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  align-items: center;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
table.data-table th, table.data-table td {
  border-bottom: 1px solid var(--border);
  padding: 0.65rem 0.5rem;
  text-align: left;
  vertical-align: top;
}
table.data-table th { color: var(--muted); font-weight: 600; background: #f8fafc; }
table.data-table tr:hover td { background: #f8fafc; }

.stat-big {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}
.announcement-box {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.announcement-box p { margin: 0.35rem 0; line-height: 1.6; }

.todo-card {
  border-radius: var(--radius);
  padding: 1.25rem;
  color: #fff;
  min-height: 100px;
}
.todo-card.blue { background: linear-gradient(135deg, #2563eb, #3b82f6); }
.todo-card .count { font-size: 2rem; font-weight: 800; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
}
.form-grid label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
}
.form-grid input, .form-grid select, .form-grid textarea {
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}
.form-grid textarea { min-height: 80px; resize: vertical; }

.chart-wrap { height: 260px; position: relative; }
.tabs { display: flex; gap: 0.25rem; flex-wrap: wrap; margin-bottom: 1rem; }
.tab {
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  cursor: pointer;
  font-size: 0.825rem;
}
.tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.treasure-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}
.treasure-pager-actions { display: flex; gap: 0.35rem; }

.empty-state {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
}

.confirm-dialog-actions {
  justify-content: flex-end;
  margin-top: 1.25rem;
}
.confirm-dialog-message {
  margin: 0;
  line-height: 1.6;
  white-space: pre-line;
  color: var(--text);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: grid;
  place-items: center;
  z-index: 200;
  padding: 1rem;
}
.modal-panel {
  width: min(520px, 96vw);
  max-height: 90vh;
  overflow: auto;
}
.field-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.field-label input {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}
.credit-summary {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.875rem 1rem;
  display: grid;
  gap: 0.35rem;
  font-size: 0.925rem;
}
.credit-row {
  display: grid;
  grid-template-columns: 1fr 140px;
  gap: 0.75rem;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}
.credit-row input {
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}

.participant-picker-field { display: block; }
.boss-picker-field { display: block; }
.boss-picker { margin-top: 0.35rem; }
.participant-suggestion span { display: inline; }

.participant-picker {
  margin-top: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  padding: 0.5rem;
}
.participant-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  min-height: 2rem;
  margin-bottom: 0.5rem;
}
.participant-chips.is-empty { margin-bottom: 0; min-height: 0; }
.participant-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.5rem 0.25rem 0.65rem;
  border-radius: 999px;
  background: #dbeafe;
  color: #1e40af;
  font-size: 0.875rem;
  font-weight: 600;
}
.participant-chip-remove {
  border: none;
  background: transparent;
  color: #1e40af;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0 0.15rem;
}
.participant-search-wrap { position: relative; }
.participant-search {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}
.participant-suggestions {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 4px);
  margin: 0;
  padding: 0.25rem 0;
  list-style: none;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  max-height: 280px;
  overflow: auto;
  z-index: 20;
}
.participant-suggestions li { margin: 0; }
.participant-suggestion {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  padding: 0.55rem 0.75rem;
  font: inherit;
  cursor: pointer;
}
.participant-suggestion:hover,
.participant-suggestion:focus {
  background: #f1f5f9;
}
.participant-suggestion.muted-item {
  cursor: default;
  color: var(--muted);
}