/* ── Reset & Base ── */
*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #eef0f8;
  --surface: #f8f9fd;
  --border: #e8eaf0;
  --border-md: #d1d5e0;
  --text: #111827;
  --text-sub: #6b7280;
  --text-hint: #9ca3af;
  --primary: #4f46e5;
  --primary-h: #4338ca;
  --primary-lt: #eef2ff;
  --primary-glow: rgba(79, 70, 229, 0.18);
  --accent: #7c3aed;
  --success: #059669;
  --success-lt: #d1fae5;
  --danger: #dc2626;
  --danger-lt: #fee2e2;
  --amber: #d97706;
  --amber-lt: #fef3c7;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.09);
  --shadow-lg: 0 8px 32px rgba(79, 70, 229, 0.12);
  --radius: 14px;
  --radius-sm: 9px;
  --grad-primary: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  --grad-text: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
}

body {
  margin: 0;
  background: linear-gradient(145deg, #eceeff 0%, #eef0f8 40%, #ede8ff 100%);
  min-height: 100vh;
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", sans-serif;
  font-size: 14px;
  line-height: 1.6;
}

/* ── 背景流動光暈 ── */
body::before {
  content: "";
  position: fixed;
  top: -20%;
  right: -5%;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(124, 58, 237, 0.14) 0%,
    rgba(79, 70, 229, 0.06) 40%,
    transparent 70%
  );
  animation: aura-drift 18s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: "";
  position: fixed;
  bottom: -15%;
  left: 15%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(79, 70, 229, 0.1) 0%,
    rgba(124, 58, 237, 0.04) 50%,
    transparent 70%
  );
  animation: aura-drift 22s ease-in-out infinite alternate-reverse;
  pointer-events: none;
  z-index: 0;
}
@keyframes aura-drift {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(50px, 35px) scale(1.1);
  }
}

/* ── Layout ── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ── */
.sidebar {
  width: 234px;
  flex-shrink: 0;
  background: linear-gradient(160deg, #f8f7ff 0%, #eeeaff 60%, #e8e4ff 100%);
  border-right: 1px solid rgba(124, 58, 237, 0.15);
  padding: 28px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 32px;
  z-index: 10;
  box-shadow: 3px 0 20px rgba(79, 70, 229, 0.08);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 4px;
}

.brand-svg {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 6px rgba(79, 70, 229, 0.25));
}

.brand-name {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.step-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.step-connector {
  width: 2px;
  height: 20px;
  background: var(--border);
  margin-left: 21px;
  border-radius: 1px;
  transition: background 0.3s;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background 0.18s,
    color 0.18s,
    box-shadow 0.18s;
  color: var(--text-hint);
}

.step-item:hover {
  background: rgba(79, 70, 229, 0.06);
  color: var(--text-sub);
}

.step-item.active {
  background: linear-gradient(
    135deg,
    rgba(79, 70, 229, 0.12) 0%,
    rgba(124, 58, 237, 0.08) 100%
  );
  color: var(--primary);
  box-shadow: inset 4px 0 0 var(--primary);
  font-weight: 700;
}

.step-item.done {
  color: var(--success);
}

.step-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition:
    background 0.2s,
    color 0.2s,
    box-shadow 0.2s;
  color: var(--text-hint);
}

.step-dot svg {
  width: 10px;
  height: 10px;
}

.step-item.active .step-dot {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.step-item.done .step-dot {
  background: var(--success-lt);
  color: var(--success);
}

.step-item.done + .step-connector {
  background: linear-gradient(to bottom, var(--success-lt), var(--border));
}

.step-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.step-num-label {
  font-size: 10px;
  font-weight: 500;
  opacity: 0.55;
  line-height: 1;
}

.step-label {
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
}

/* ── Main content ── */
.main-content {
  flex: 1;
  min-width: 0;
  padding: 40px 48px;
  position: relative;
  z-index: 1;
}

/* ── Step pages ── */
.step-page {
  display: none;
  animation: page-in 0.3s ease both;
}
.step-page.active {
  display: block;
}

@keyframes page-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-header {
  margin-bottom: 32px;
}

.page-step-label {
  margin: 0 0 6px;
  font-size: 11px;
  font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  display: inline-block;
}


/* ── Step footer nav ── */
.step-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  position: relative;
}
.step-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 60px;
  height: 2px;
  background: var(--grad-primary);
  border-radius: 2px;
}

/* ── Panel ── */
.panel {
  background: #ffffff;
  border: 1px solid rgba(79, 70, 229, 0.1);
  border-radius: var(--radius);
  padding: 26px;
  margin-bottom: 20px;
  box-shadow:
    0 2px 8px rgba(79, 70, 229, 0.06),
    0 8px 24px rgba(0, 0, 0, 0.06);
  position: relative;
  overflow: hidden;
  transition:
    box-shadow 0.25s,
    transform 0.25s;
}

.panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity 0.25s;
  border-radius: var(--radius) var(--radius) 0 0;
}

.panel:hover {
  box-shadow:
    0 4px 16px rgba(79, 70, 229, 0.1),
    0 12px 32px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.panel:hover::before {
  opacity: 1;
}

.panel-secondary {
  background: #f6f5ff;
  border-color: rgba(79, 70, 229, 0.12);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.05);
}
.panel-secondary::before {
  display: none;
}
.panel-secondary:hover {
  transform: none;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.panel-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.panel-title-group h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.panel-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--primary-lt);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.panel-badge.success {
  background: var(--success-lt);
  color: var(--success);
}

.panel-badge.secondary {
  background: var(--border);
  color: var(--text-sub);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition:
    background 0.15s,
    box-shadow 0.15s,
    opacity 0.15s;
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow:
    0 3px 12px rgba(79, 70, 229, 0.3),
    0 1px 3px rgba(79, 70, 229, 0.2);
  border: none;
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.15) 0%,
    transparent 60%
  );
  opacity: 1;
  border-radius: inherit;
}
.btn-primary:hover:not(:disabled) {
  box-shadow:
    0 6px 22px rgba(79, 70, 229, 0.4),
    0 2px 6px rgba(79, 70, 229, 0.25);
  transform: translateY(-2px);
}
.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(79, 70, 229, 0.25);
}

.btn-ghost {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border-md);
  transition:
    background 0.15s,
    border-color 0.15s,
    color 0.15s,
    box-shadow 0.15s;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--primary-lt);
  border-color: rgba(79, 70, 229, 0.35);
  color: var(--primary);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.1);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-lg {
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
}

.btn-danger {
  color: var(--danger);
  border-color: #fecaca;
}
.btn-danger:hover {
  background: var(--danger-lt);
}

.full-width {
  width: 100%;
  justify-content: center;
}

/* ── Control row ── */
.control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.room-actions {
  display: flex;
  gap: 8px;
}

/* ── Toggle group (radio tabs) ── */
.toggle-group {
  display: inline-flex;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
}

.toggle-btn {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-sub);
  transition:
    background 0.12s,
    color 0.12s,
    box-shadow 0.12s;
  margin: 0;
}

.toggle-btn input[type="radio"] {
  display: none;
}

.toggle-btn:has(input:checked) {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.roster-toggle {
  margin-bottom: 16px;
}

/* ── Status bar ── */
.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  gap: 12px;
}

.status-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
}

.status-sub {
  font-size: 12px;
  color: var(--text-hint);
  white-space: nowrap;
}

/* ── Editor layout ── */
.editor-layout {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  min-height: 200px;
}

.block-palette {
  position: absolute;
  left: 0;
  top: 0;
  width: 148px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
}

.palette-title {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.block-reason-btns {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.reason-btn {
  padding: 7px 10px;
  border: 1px solid var(--border-md);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  text-align: left;
  font-size: 13px;
  font-weight: 500;
  transition: border-color 0.12s;
}

.reason-btn.active {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 12px 0;
}

.hint-sm {
  font-size: 12px;
  color: var(--text-sub);
  margin: 8px 0 0;
}

.hint-sm.success {
  color: var(--success);
}

.editor-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px;
  background: var(--bg);
  display: inline-block;
}

/* ── Editor grid ── */
.editor-grid td {
  width: 38px;
  height: 38px;
  min-width: 38px;
  border: 1px solid var(--border);
  text-align: center;
  vertical-align: middle;
  font-size: 10px;
  cursor: crosshair;
  user-select: none;
  padding: 0;
  transition: background 0.06s;
}

.editor-grid td.outside {
  background: #f4f6fa;
}
.editor-grid td.selecting {
  background: #c7d2fe;
  border-color: var(--primary);
}
.editor-grid td.in-room {
  background: #fff;
  border-color: #94a3b8;
}
.editor-grid td.blocked-edit {
  border-color: #94a3b8;
  color: var(--text-sub);
  font-size: 10px;
  font-weight: 600;
}
.editor-grid td.selecting-block {
  background: var(--amber-lt);
  border-color: var(--amber);
}

/* ── Block colors ── */
.reason-btn.block-board,
.editor-grid td.block-board,
.seatmap-table td.block-board {
  background: #e8e6df;
}

.reason-btn.block-door,
.editor-grid td.block-door,
.seatmap-table td.block-door {
  background: #dfe6ee;
}

.reason-btn.block-pillar,
.editor-grid td.block-pillar,
.seatmap-table td.block-pillar {
  background: #e8dfe6;
}

.reason-btn.block-blank,
.editor-grid td.block-blank,
.seatmap-table td.block-blank {
  background: var(--danger-lt);
  color: var(--danger);
  font-weight: 700;
  font-size: 14px;
}

.reason-btn.block-other,
.editor-grid td.block-other,
.seatmap-table td.block-other {
  background: #e5e5e0;
}

/* ── Grid axis labels ── */
.editor-grid th.grid-axis-label {
  text-align: center;
  vertical-align: middle;
  font-size: 9px;
  font-weight: 500;
  color: #c8cedd;
  background: transparent;
  border: none;
  padding: 0 2px;
  user-select: none;
  white-space: nowrap;
}
.editor-grid th.grid-row-label {
  width: 18px;
  min-width: 18px;
}
.editor-grid th.grid-axis-label.axis-in-room {
  color: var(--primary);
  font-weight: 700;
}

/* ── col-reverse active ── */
#col-reverse-btn.active-toggle {
  background: var(--primary-lt);
  border-color: var(--primary);
  color: var(--primary);
}

/* ── Field schema card ── */
.field-schema-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.schema-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  white-space: nowrap;
}

.schema-chips {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.schema-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}

.schema-chip.required {
  background: var(--primary-lt);
  color: var(--primary);
}

.schema-chip.optional {
  background: var(--bg);
  color: var(--text-sub);
  border: 1px solid var(--border);
}

.schema-chip em {
  font-style: normal;
  font-size: 11px;
  font-weight: 400;
  opacity: 0.75;
}

.schema-arrow {
  color: var(--text-hint);
  font-size: 13px;
  font-weight: 400;
}

/* ── Template / mock preview ── */
.inline-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 14px 0 8px;
}

.inline-preview-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
}

.cell-placeholder {
  color: var(--text-hint);
  font-style: italic;
  font-size: 12px;
}

.template-hint-row td {
  text-align: center;
  font-size: 12px;
  color: var(--text-hint);
  padding: 6px 12px;
  background: var(--bg);
  font-style: italic;
}

.mock-preview-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 12px;
}

.mock-preview-title {
  margin: 0 0 3px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.mock-preview-sub {
  margin: 0;
  font-size: 12px;
  color: var(--text-sub);
}

/* ── Pagination ── */
.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.pagination-pages {
  display: flex;
  align-items: center;
  gap: 4px;
}

.page-num-btn {
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-sub);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition:
    background 0.15s,
    color 0.15s,
    border-color 0.15s;
}

.page-num-btn:hover {
  background: var(--bg);
  border-color: var(--primary);
  color: var(--primary);
}

.page-num-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 600;
}

.data-table td.row-num {
  color: var(--text-hint);
  font-size: 11px;
  width: 32px;
  text-align: right;
  padding-right: 8px;
}

/* ── Upload area ── */
.file-label.btn-primary {
  background: var(--primary);
  color: #fff;
}
.file-label.btn-primary:hover {
  background: var(--primary-h);
}

.count-badge.success {
  background: var(--success-lt);
  border-color: transparent;
  color: var(--success);
}

/* ── Roster ── */
.action-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.mt-16 {
  margin-top: 16px;
}

.file-label {
  cursor: pointer;
}

.count-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-sub);
  margin-left: 4px;
}

.field-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
  margin: 0 0 6px;
}

.roster-textarea {
  width: 100%;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  line-height: 1.5;
  padding: 10px 12px;
  border: 1px solid var(--border-md);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  resize: vertical;
  min-height: 180px;
  margin-top: 6px;
  outline: none;
  transition: border-color 0.15s;
}
.roster-textarea:focus {
  border-color: var(--primary);
}

.preview-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
  margin: 16px 0 8px;
}

.table-wrap {
  overflow: auto;
  max-height: 320px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th,
.data-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

.data-table th {
  background: linear-gradient(to bottom, #f0f1f8, #eaecf5);
  font-weight: 700;
  color: var(--text-sub);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  position: sticky;
  top: 0;
  z-index: 1;
}

.data-table tr:last-child td {
  border-bottom: none;
}
.data-table tr:hover td {
  background: #f5f4ff;
}

/* ── Field row ── */
.field-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.field-group {
  flex: 1;
  min-width: 180px;
}

.text-input {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border-md);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
  margin-top: 6px;
}
.text-input:focus {
  border-color: var(--primary);
  background: #fff;
}

/* ── Result & Shuffle ── */
.result-summary {
  font-size: 15px;
  font-weight: 500;
  color: var(--success);
  background: var(--success-lt);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-bottom: 16px;
}

.shuffle-list {
  margin: 0;
  padding-left: 20px;
  font-size: 13px;
  line-height: 2;
  color: var(--text-sub);
}

/* ── Seatmap ── */
.seatmap-scroll {
  overflow: auto;
}

table {
  border-collapse: collapse;
  width: max-content;
  margin-bottom: 12px;
}

.seatmap-table td,
.seatmap-table th.axis {
  text-align: center;
  vertical-align: middle;
}

.seatmap-table th.axis {
  background: var(--bg);
  font-weight: 600;
  font-size: 11px;
  color: var(--text-sub);
  min-width: 28px;
  border: 1px solid var(--border);
  padding: 4px 6px;
}

.seatmap-table td {
  width: 88px;
  height: 88px;
  border: 1px solid #d8dce8;
  font-size: 11px;
  padding: 4px 4px;
  line-height: 1.3;
  transition: box-shadow 0.15s;
}

.seatmap-table td.assigned {
  background: #e0e7ff;
  border-color: #c7d2fe;
}

.seatmap-table td.assigned:hover {
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.2);
}

.seatmap-table td.empty {
  background: #f8f8fb;
  color: var(--text-hint);
  border-color: #e4e6f0;
}

.cell-id {
  font-size: 10px;
  color: #3730a3;
  font-weight: 700;
}

.cell-name {
  font-weight: 700;
  white-space: nowrap;
  color: #1e1b4b;
}

.cell-name-en {
  font-size: 9px;
  font-weight: 500;
  color: #4338ca;
  white-space: normal;
  word-break: break-word;
}

/* ── Legend ── */
.legend {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}

.legend-chip.assigned {
  background: #e0e7ff;
  color: #3730a3;
  border-color: #c7d2fe;
}
.assigned-dot {
  background: #818cf8;
}

.legend-chip.empty {
  background: #f3f4f6;
  color: var(--text-sub);
  border-color: #d1d5db;
}
.empty-dot {
  background: #d1d5db;
}

/* ── Help text ── */
.help-text {
  font-size: 12px;
  color: var(--text-hint);
  margin: 8px 0 0;
}

/* ── Seatmap col-reverse active toggle ── */
#col-reverse-btn.active-toggle {
  background: var(--primary-lt);
  border-color: var(--primary);
  color: var(--primary);
}

/* ── Erase block active ── */
#erase-block-btn.active-toggle {
  background: var(--amber-lt);
  border-color: var(--amber);
  color: var(--amber);
}

/* ── Input focus glow ── */
.text-input:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.mapping-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* ── roster-summary-card upgrade ── */
.roster-summary-card {
  background: linear-gradient(135deg, #fff 0%, #f5f3ff 100%);
  border-color: rgba(79, 70, 229, 0.15);
  box-shadow: var(--shadow-md);
}

/* ── Toast 通知 ── */
.toast-container {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  pointer-events: all;
  max-width: 360px;
  opacity: 0;
  transform: translateX(20px);
  transition:
    opacity 0.25s,
    transform 0.25s;
}

.toast.show {
  opacity: 1;
  transform: translateX(0);
}

.toast-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}
.toast-warning {
  background: #fffbeb;
  color: #92400e;
  border: 1px solid #fde68a;
}
.toast-success {
  background: #f0fdf4;
  color: #14532d;
  border: 1px solid #bbf7d0;
}
.toast-info {
  background: #eff6ff;
  color: #1e3a5f;
  border: 1px solid #bfdbfe;
}

.toast-icon {
  font-size: 15px;
  flex-shrink: 0;
}

.toast-msg {
  flex: 1;
  line-height: 1.4;
}

.toast-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 13px;
  padding: 0 0 0 4px;
  opacity: 0.5;
  color: inherit;
  margin: 0;
  flex-shrink: 0;
}

.toast-close:hover {
  opacity: 1;
}

/* ── 多選組別 dropdown ── */
.multiselect-wrap {
  position: relative;
}
.multiselect-trigger {
  padding: 4px 10px;
  border: 1px solid var(--border-md);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  min-width: 120px;
  text-align: left;
  transition: border-color .15s;
}
.multiselect-trigger:hover { border-color: var(--primary); color: var(--primary); }
.multiselect-trigger.has-selection { border-color: var(--primary); color: var(--primary); background: var(--primary-lt); }
.multiselect-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  background: #fff;
  border: 1px solid var(--border-md);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  z-index: 500;
  min-width: 160px;
  max-height: 240px;
  overflow-y: auto;
  padding: 6px 0;
}
.multiselect-dropdown label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text);
  transition: background .1s;
}
.multiselect-dropdown label:hover { background: var(--primary-lt); }
.multiselect-dropdown label input[type="checkbox"] { accent-color: var(--primary); width: 14px; height: 14px; flex-shrink: 0; }
.multiselect-divider { height: 1px; background: var(--border); margin: 4px 0; }

/* ── 排位名單明細區塊 ── */
.roster-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
  margin: 0 0 10px;
}
.roster-section-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}
.unassigned-title { color: var(--danger); }
.unassigned-dot   { background: var(--danger); }
.assigned-title   { color: var(--success); }
.assigned-dot-sm  { background: #818cf8; }

/* ── 合併不可用格 ── */
.seatmap-table td.merged-block {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  vertical-align: middle;
  text-align: center;
}

/* ── 欄位對應 UI ── */
.mapping-header {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 14px;
}
.mapping-title {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
}
.mapping-hint {
  font-size: 12px;
  color: var(--text-sub);
}
.mapping-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  margin-bottom: 14px;
}
.mapping-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mapping-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}
.mapping-label.required-dot::after {
  content: " *";
  color: var(--danger);
}
.mapping-select {
  padding: 7px 10px;
  border: 1px solid var(--border-md);
  border-radius: var(--radius-sm);
  font-size: 13px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  outline: none;
  transition: border-color 0.15s;
}
.mapping-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}
#column-mapping-wrap {
  background: var(--amber-lt);
  border: 1px solid #fde68a;
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 16px;
}

/* ── 欄位對應：姓名模式切換 ── */
.mapping-row-name {
  grid-column: 1 / -1;
}
.mapping-name-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.mapping-name-toggle {
  display: flex;
  gap: 12px;
}
.mapping-name-opt {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-sub);
  cursor: pointer;
}
.name-split-selects {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}
.name-split-selects > div {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.name-split-plus {
  font-size: 10px;
  color: var(--text-hint);
  padding-bottom: 8px;
}
.mapping-sublabel {
  font-size: 11px;
  color: var(--text-sub);
}

/* ── 組別格式提示 ── */
.mapping-group-hint {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--amber);
  background: rgba(217, 119, 6, 0.08);
  border: 1px solid rgba(217, 119, 6, 0.25);
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  margin-bottom: 12px;
}
.hint-icon {
  font-style: normal;
  font-size: 13px;
}

/* ── 排除面板 ── */
#exclude-panel {
  background: var(--surface);
  border: 1px solid var(--border-md);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-top: 16px;
}
.exclude-panel-header {
  margin-bottom: 14px;
}
.exclude-panel-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 2px;
}
.exclude-panel-title {
  font-weight: 600;
  font-size: 14px;
}
.exclude-panel-hint {
  font-size: 12px;
  color: var(--text-sub);
  margin: 0;
}

.exclude-section {
  margin-bottom: 14px;
}
.exclude-section-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin: 0 0 8px;
}

.exclude-group-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.exclude-group-select {
  flex: 1;
}

.btn-danger-outline {
  border: 1px solid var(--danger);
  color: var(--danger);
  background: transparent;
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s;
}
.btn-danger-outline:hover {
  background: var(--danger-lt);
}

.excluded-chips-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.excluded-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--danger-lt);
  color: var(--danger);
  border: 1px solid rgba(220, 38, 38, 0.25);
  border-radius: 20px;
  padding: 3px 10px 3px 12px;
  font-size: 12px;
  font-weight: 500;
}
.chip-remove {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 11px;
  color: var(--danger);
  padding: 0 2px;
  opacity: 0.7;
}
.chip-remove:hover {
  opacity: 1;
}

.exclude-divider {
  height: 1px;
  background: var(--border);
  margin: 12px 0;
}

.exclude-individual-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.exclude-filter-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-sub);
}
.exclude-filter-select {
  width: 140px;
}

.exclude-table-wrap {
  max-height: 260px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.exclude-table {
  width: 100%;
}
.exclude-table .col-check {
  width: 36px;
  text-align: center;
}
.excluded-row {
  background: var(--danger-lt) !important;
}
.count-badge.warning {
  background: var(--amber-lt);
  color: var(--amber);
  border: 1px solid rgba(217, 119, 6, 0.25);
}

/* ── 排除面板確認列 ── */
.exclude-confirm-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.exclude-confirm-hint {
  font-size: 12px;
  color: var(--text-hint);
}

/* ── 系級選填標籤 ── */
.optional-tag {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-hint);
  background: var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  margin-left: 4px;
}

/* ── 名單預覽排序下拉 ── */
.roster-sort-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.roster-sort-label {
  font-size: 12px;
  color: var(--text-sub);
  white-space: nowrap;
}
.roster-sort-select {
  width: 110px;
  font-size: 12px;
  padding: 4px 8px;
}

/* ── 步驟 3 名單摘要卡片 ── */
.roster-summary-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin-bottom: 16px;
}
.roster-summary-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--primary-lt);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.roster-summary-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.roster-summary-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.roster-summary-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.roster-summary-badge {
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--primary-lt);
  color: var(--primary);
  white-space: nowrap;
}
.roster-summary-badge.success {
  background: var(--success-lt);
  color: var(--success);
}
.roster-summary-badge.warning {
  background: var(--amber-lt);
  color: var(--amber);
}

/* ── 頁面標題區（步驟編號 + 標題 + 副標題） ── */
.page-header-top {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 6px;
}
.page-step-num {
  font-size: 11px;
  font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  white-space: nowrap;
  padding-top: 2px;
}
.page-header-top h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.7px;
  color: var(--text);
  position: relative;
  display: inline-block;
}
.page-header-top h1::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 36px;
  height: 3px;
  background: var(--grad-primary);
  border-radius: 2px;
}
.page-subtitle {
  margin: 8px 0 0;
  color: var(--text-sub);
  font-size: 13px;
  line-height: 1.5;
}

/* ── 上一步/下一步按鈕列（標題下方） ── */
.page-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  margin-bottom: 28px;
  padding: 12px 0;
}
.step-nav-btn {
  min-width: 110px;
  justify-content: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
}
.page-nav-spacer {
  flex: 1;
}
.page-nav-bar-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 28px;
  padding: 16px 0 4px;
  border-top: 1px solid var(--border);
}

/* ── 欄位對應三欄版面 ── */
.mapping-row3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.mapping-row-name {
  margin-bottom: 14px;
}
.mapping-select-name {
  width: 33%;
}

/* ── Bootstrap-style Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17,24,39,.45);
  backdrop-filter: blur(3px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: modal-fade-in .2s ease;
}
.modal-overlay[hidden] { display: none; }

@keyframes modal-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal-dialog {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,.18);
  width: 480px;
  max-width: 92vw;
  animation: modal-slide-in .22s ease;
  overflow: hidden;
}

@keyframes modal-slide-in {
  from { transform: translateY(-20px) scale(.97); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-icon {
  font-size: 22px;
  flex-shrink: 0;
}
.modal-title {
  flex: 1;
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}
.modal-close {
  background: none;
  border: none;
  font-size: 18px;
  color: var(--text-hint);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 6px;
  transition: background .15s, color .15s;
}
.modal-close:hover { background: var(--bg); color: var(--text); }

.modal-body {
  padding: 20px 24px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  white-space: pre-wrap;
}

.modal-footer {
  padding: 12px 24px 20px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* Modal 類型顏色 */
.modal-dialog.modal-success .modal-header { border-bottom-color: var(--success-lt); }
.modal-dialog.modal-success .modal-title  { color: var(--success); }
.modal-dialog.modal-warning .modal-header { border-bottom-color: var(--amber-lt); }
.modal-dialog.modal-warning .modal-title  { color: var(--amber); }
.modal-dialog.modal-error   .modal-header { border-bottom-color: var(--danger-lt); }
.modal-dialog.modal-error   .modal-title  { color: var(--danger); }