:root {
  --ink: #10151D;
  --ink-soft: #1B2430;
  --paper: #EEF0F4;
  --paper-card: #FFFFFF;
  --text: #14181F;
  --text-mute: #5B6472;
  --border: #D8DCE3;
  --accent: #FFB238;
  --primary: #2456DD;
  --primary-dark: #1B3FA8;
  --success: #1B8A5A;
  --success-bg: #E4F3EC;
  --danger: #C4432B;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'IBM Plex Sans HK', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--paper);
  color: var(--text);
  min-height: 100vh;
}

button, input {
  font-family: inherit;
}

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

/* ---------- Login ---------- */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
}

.login-card {
  width: min(360px, 90vw);
  background: var(--ink-soft);
  border: 1px solid #2A3444;
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  color: #F2F4F8;
}

.gate-mark {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-bottom: 20px;
}

.gate-bar {
  width: 6px;
  height: 28px;
  background: var(--accent);
  border-radius: 2px;
}
.gate-bar:nth-child(2) { height: 40px; }
.gate-bar:nth-child(3) { height: 20px; }

.login-card h1 {
  font-size: 22px;
  margin: 0 0 6px;
  font-weight: 600;
}

.login-sub {
  color: #9AA4B4;
  font-size: 14px;
  margin: 0 0 24px;
}

#loginForm { display: flex; flex-direction: column; gap: 14px; }

#loginForm label {
  text-align: left;
  font-size: 13px;
  color: #9AA4B4;
}

#pin {
  padding: 14px 16px;
  font-size: 20px;
  letter-spacing: 4px;
  border-radius: 8px;
  border: 1px solid #384258;
  background: #0D121A;
  color: #F2F4F8;
  text-align: center;
}

#loginForm button {
  padding: 14px;
  border-radius: 8px;
  border: none;
  background: var(--primary);
  color: white;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}
#loginForm button:hover { background: var(--primary-dark); }

.error-text {
  color: #FF9080;
  font-size: 14px;
  min-height: 20px;
  margin: 14px 0 0;
}

/* ---------- Board header ---------- */
.board {
  background: var(--ink);
  color: #F2F4F8;
  padding: 18px 20px 22px;
}

.board-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.event-name {
  font-size: 14px;
  color: #9AA4B4;
  font-weight: 500;
}

.ghost-btn {
  background: transparent;
  border: 1px solid #384258;
  color: #C6CCD6;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}
.ghost-btn:hover { border-color: #566078; color: #fff; }

.board-count {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: 'IBM Plex Mono', monospace;
}

.count-current {
  font-size: 52px;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.count-sep {
  font-size: 28px;
  color: #566078;
}

.count-total {
  font-size: 28px;
  color: #C6CCD6;
  font-variant-numeric: tabular-nums;
}

.count-label {
  font-family: 'IBM Plex Sans HK', sans-serif;
  font-size: 14px;
  color: #9AA4B4;
  margin-left: 6px;
}

.board-bar {
  margin-top: 14px;
  height: 4px;
  background: #2A3444;
  border-radius: 2px;
  overflow: hidden;
}

.board-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 0.4s ease;
}

/* ---------- Tabs ---------- */
.tabs {
  display: flex;
  background: var(--paper-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.tab {
  flex: 1;
  padding: 14px;
  border: none;
  background: transparent;
  font-size: 15px;
  color: var(--text-mute);
  cursor: pointer;
  border-bottom: 3px solid transparent;
}

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* ---------- Panels ---------- */
main {
  max-width: 640px;
  margin: 0 auto;
  padding: 20px 16px 60px;
}

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

.panel h2 {
  font-size: 18px;
  margin: 4px 0 8px;
}

.panel-desc {
  color: var(--text-mute);
  font-size: 14px;
  line-height: 1.6;
  margin: 0 0 18px;
}

.search-box {
  width: 100%;
  padding: 16px 18px;
  font-size: 17px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--paper-card);
  margin-bottom: 6px;
}

.hint {
  color: var(--text-mute);
  font-size: 13px;
  text-align: center;
  margin-top: 24px;
}

.result-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  border-top: 1px solid var(--border);
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 4px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.result-info { min-width: 0; }

.result-name {
  font-size: 16px;
  font-weight: 600;
}

.result-org {
  font-size: 13px;
  color: var(--text-mute);
  margin-top: 2px;
}

.result-meta {
  font-size: 13px;
  color: var(--text-mute);
  margin-top: 2px;
  font-family: 'IBM Plex Mono', monospace;
}

.result-seat {
  display: inline-block;
  margin-top: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: #E8EEFD;
  padding: 3px 10px;
  border-radius: 12px;
}

.checkin-btn {
  flex-shrink: 0;
  padding: 10px 18px;
  border-radius: 8px;
  border: none;
  background: var(--primary);
  color: white;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.checkin-btn:hover { background: var(--primary-dark); }

.checked-tag {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.checked-badge {
  background: var(--success-bg);
  color: var(--success);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 20px;
}

.undo-btn {
  background: none;
  border: none;
  color: var(--text-mute);
  font-size: 12px;
  cursor: pointer;
  text-decoration: underline;
}

/* ---------- Import ---------- */
#importForm {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--paper-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

#importFile { font-size: 14px; }

#importForm button {
  padding: 12px;
  border-radius: 8px;
  border: none;
  background: var(--primary);
  color: white;
  font-weight: 600;
  cursor: pointer;
}

.result-text {
  margin-top: 14px;
  font-size: 14px;
  color: var(--text-mute);
}

/* ---------- List / export ---------- */
.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.primary-btn {
  padding: 10px 16px;
  border-radius: 8px;
  border: none;
  background: var(--primary);
  color: white;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.list-filters {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.filter-btn {
  padding: 8px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--paper-card);
  color: var(--text-mute);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.filter-btn span {
  font-family: 'IBM Plex Mono', monospace;
  margin-left: 4px;
}

.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.empty-row {
  text-align: center;
  color: var(--text-mute);
  padding: 24px 0 !important;
}

.danger-zone {
  margin-top: 28px;
  padding: 16px;
  border: 1px solid #F0C9BE;
  background: #FDF2EE;
  border-radius: var(--radius);
}

.danger-zone h3 {
  margin: 0 0 6px;
  font-size: 15px;
  color: var(--danger);
}

.danger-zone .panel-desc {
  margin: 0 0 12px;
}

.danger-btn {
  padding: 10px 16px;
  border-radius: 8px;
  border: 1px solid var(--danger);
  background: white;
  color: var(--danger);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.danger-btn:hover { background: var(--danger); color: white; }
.danger-btn:disabled {
  border-color: var(--border);
  color: var(--text-mute);
  background: #F3F1EE;
  cursor: not-allowed;
}
.danger-btn:disabled:hover { background: #F3F1EE; color: var(--text-mute); }

.reset-hint {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--danger);
  line-height: 1.5;
}

.list-quick-filter {
  margin-bottom: 14px;
  padding: 12px 16px;
  font-size: 14px;
}

.data-table th {
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
.data-table th:hover {
  background: #E4E7EC;
}
.sort-arrow {
  font-size: 10px;
  color: var(--primary);
}

.table-scroll {
  overflow-x: auto;
  border-radius: var(--radius);
}

.data-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  background: var(--paper-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 14px;
}

.data-table th, .data-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  background: var(--paper);
  color: var(--text-mute);
  font-weight: 600;
  font-size: 12px;
}

.status-done { color: var(--success); font-weight: 600; }
.status-pending { color: var(--text-mute); }

@media (max-width: 480px) {
  .count-current { font-size: 40px; }
  .data-table { font-size: 12px; }
  .data-table th, .data-table td { padding: 8px 6px; }
}