/* ===========================
   Modern Seating App - Refined Design
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700&family=JetBrains+Mono:wght@500&display=swap');

:root {
  /* Color Palette - Sophisticated Blue-Gray */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-dark: #0f172a;
  --bg-dark-hover: #1e293b;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --text-inverse: #ffffff;

  --accent-primary: #3b82f6;
  --accent-primary-hover: #2563eb;
  --accent-success: #10b981;
  --accent-success-light: #d1fae5;
  --accent-warning: #f59e0b;
  --accent-warning-light: #fef3c7;
  --accent-info: #6366f1;
  --accent-info-light: #e0e7ff;
  --accent-danger: #ef4444;
  --accent-danger-light: #fee2e2;

  --border-light: #e2e8f0;
  --border-medium: #cbd5e1;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===========================
   Header - Clean & Minimal
   =========================== */
.header {
  background: var(--bg-dark);
  padding: 0 24px;
  height: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: none;
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ===========================
   Buttons - Refined Style
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.1) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn:disabled::before {
  display: none;
}

/* Primary Button - Main CTA */
.btn-load {
  background: linear-gradient(135deg, var(--accent-primary) 0%, #2563eb 100%);
  color: var(--text-inverse);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.35);
}

.btn-load:hover:not(:disabled) {
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.45);
  transform: translateY(-1px);
}

/* Secondary Buttons */
.btn-secondary {
  background: var(--bg-dark-hover);
  color: var(--text-inverse);
  border: 1px solid rgba(255,255,255,0.1);
}

.btn-secondary:hover:not(:disabled) {
  background: #334155;
}

.btn-archive {
  background: linear-gradient(135deg, var(--accent-info) 0%, #4f46e5 100%);
  color: var(--text-inverse);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}

.btn-archive:hover:not(:disabled) {
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.45);
  transform: translateY(-1px);
}

.btn-print {
  background: var(--bg-dark-hover);
  color: var(--text-inverse);
  border: 1px solid rgba(255,255,255,0.1);
}

.btn-print:hover:not(:disabled) {
  background: #334155;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, #2563eb 100%);
  color: var(--text-inverse);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.45);
}

.btn-generate {
  background: linear-gradient(135deg, var(--accent-success) 0%, #059669 100%);
  color: var(--text-inverse);
  width: 100%;
  padding: 16px;
  font-size: 15px;
  margin-top: 20px;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.35);
}

.btn-generate:hover:not(:disabled) {
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.45);
  transform: translateY(-1px);
}

/* ===========================
   Status Bar - Subtle
   =========================== */
.status-bar {
  background: var(--bg-secondary);
  padding: 14px 24px;
  border-bottom: 1px solid var(--border-light);
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-bar::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent-primary);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ===========================
   Welcome State (Initial)
   =========================== */
.welcome-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 140px);
  padding: 48px 24px;
  text-align: center;
}

.welcome-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-info) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-lg);
}

.welcome-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.welcome-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 400px;
}

/* ===========================
   Summary Section
   =========================== */
.summary-section {
  background: var(--bg-secondary);
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-light);
}

.summary-list {
  list-style: none;
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.summary-list li {
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.summary-list li strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ===========================
   Preview Section
   =========================== */
.preview-section {
  background: var(--bg-secondary);
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-light);
  max-height: 200px;
  overflow-y: auto;
}

.person-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-light);
  font-size: 14px;
}

.person-row:last-child {
  border-bottom: none;
}

.person-badge {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.person-member .person-badge { background: var(--accent-success); }
.person-guest .person-badge { background: var(--accent-primary); }
.person-master .person-badge { background: var(--accent-warning); }
.person-other .person-badge { background: #f97316; }

.person-name {
  font-weight: 500;
  color: var(--text-primary);
  min-width: 100px;
}

.person-meta {
  color: var(--text-tertiary);
  font-size: 13px;
}

/* ===========================
   Config Section - Card Style
   =========================== */
.config-section {
  padding: 24px;
  animation: fadeInUp 0.4s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.config-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

.config-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.config-item label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.config-item select,
.config-item input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-family: inherit;
  background: var(--bg-secondary);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.config-item select:focus,
.config-item input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.config-summary {
  background: var(--bg-tertiary);
  padding: 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  border-left: 4px solid var(--accent-primary);
}

/* ===========================
   Layout Selection
   =========================== */
.layout-section {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
}

.layout-section h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.layout-hint {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
  line-height: 1.6;
}

.layout-options {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.layout-card {
  flex: 1 1 180px;
  border: 2px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.layout-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-sm);
}

.layout-card.selected {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.layout-badge {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.layout-mini {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin: 16px 0;
}

.layout-row {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.layout-dot {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  border: 2px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
}

.layout-card.selected .layout-dot {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.layout-label {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ===========================
   Main Container - 2 Column
   =========================== */
.main-container {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 24px;
  padding: 24px;
  min-height: calc(100vh - 200px);
  animation: fadeInUp 0.4s ease;
}

/* ===========================
   Seating Area
   =========================== */
.seating-area {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  overflow-y: auto;
}

.tables-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.table-row {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Table Card */
.table-card {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px;
  background: var(--bg-secondary);
  min-height: 200px;
  max-height: 600px;
  flex: 0 0 auto;
  width: calc(33.333% - 12px);
  min-width: 220px;
  max-width: 300px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.table-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-medium);
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--text-primary);
}

.table-title {
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.table-count {
  font-size: 13px;
  color: var(--text-tertiary);
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
}

.seats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  flex: 1;
  overflow-y: auto;
}

.seat {
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 8px;
  min-height: 72px;
  background: var(--bg-tertiary);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.seat.master {
  background: var(--accent-warning-light);
  border-color: var(--accent-warning);
  border-style: solid;
}

.seat.occupied {
  border-style: solid;
  border-color: var(--border-medium);
  background: var(--bg-secondary);
}

.seat:hover {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
}

.seat.master:hover {
  background: #fde68a;
}

.master-label {
  font-size: 10px;
  color: #92400e;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.table-summary {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
  font-size: 12px;
  color: var(--text-tertiary);
  display: flex;
  justify-content: space-between;
}

/* ===========================
   Person Card (Draggable)
   =========================== */
.person-card {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: grab;
  border: 2px solid;
  line-height: 1.4;
  transition: all var(--transition-fast);
  user-select: none;
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 100%;
  word-wrap: break-word;
}

.person-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.person-card:active {
  cursor: grabbing;
}

.person-card .person-name {
  font-weight: 600;
  font-size: 13px;
  line-height: 1.3;
  min-width: auto;
}

.person-card .person-title {
  font-size: 10px;
  font-weight: 600;
  margin-bottom: 2px;
  opacity: 0.8;
}

/* Member Types */
.person-card.jikai {
  background: var(--accent-success-light);
  border-color: var(--accent-success);
  color: #065f46;
}

.person-card.guest {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--accent-primary);
  color: #1e40af;
}

.person-card.other-venue {
  background: #fed7aa;
  border-color: #f97316;
  color: #9a3412;
}

.person-card.other-venue .person-title {
  font-size: 9px;
}

.person-card.selected {
  box-shadow: 0 0 0 3px var(--accent-primary);
  transform: scale(1.03);
}

/* ===========================
   Side Zone
   =========================== */
.side-zone {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.special-zone {
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--accent-warning);
}

.special-header {
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
  color: #92400e;
}

.special-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.special-slot {
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 12px;
  min-height: 60px;
  background: var(--bg-tertiary);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.special-slot:hover {
  background: var(--accent-warning-light);
  border-color: var(--accent-warning);
}

.special-placeholder {
  color: var(--text-tertiary);
  font-size: 12px;
}

.waiting-zone {
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  flex: 1;
}

.waiting-header {
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--text-primary);
  color: var(--text-primary);
}

.waiting-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.waiting-slot {
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 12px;
  min-height: 60px;
  background: var(--bg-tertiary);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.waiting-slot:hover {
  background: rgba(59, 130, 246, 0.05);
  border-color: var(--accent-primary);
}

.waiting-placeholder {
  color: var(--text-tertiary);
  font-size: 12px;
}

/* ===========================
   Drag & Drop
   =========================== */
.dragging {
  opacity: 0.5;
  cursor: grabbing !important;
}

.drag-over {
  background: rgba(59, 130, 246, 0.1) !important;
  border-color: var(--accent-primary) !important;
  border-style: solid !important;
}

/* ===========================
   Modals - Unified Style
   =========================== */
.print-modal,
.auto-seat-modal,
.diff-modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.print-modal-content,
.auto-seat-modal-content,
.diff-modal-content {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Print Modal */
.print-modal-content {
  width: 95%;
  max-width: 1400px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.print-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-light);
}

.print-modal-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.print-modal-close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--accent-danger);
  color: var(--text-inverse);
  border: none;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.print-modal-close:hover {
  background: #dc2626;
  transform: scale(1.05);
}

.print-controls {
  padding: 16px 24px;
  display: flex;
  gap: 12px;
  align-items: center;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-tertiary);
}

.btn-paper-size {
  padding: 10px 18px;
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
}

.btn-paper-size:hover {
  border-color: var(--accent-primary);
}

.btn-paper-size.active {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-primary);
}

.print-preview-area {
  flex: 1;
  overflow: auto;
  padding: 24px;
  background: var(--bg-tertiary);
  display: flex;
  justify-content: center;
}

/* Auto Seat Modal */
.auto-seat-modal-content {
  width: 90%;
  max-width: 480px;
  padding: 32px;
}

.auto-seat-modal-header {
  text-align: center;
  margin-bottom: 28px;
}

.auto-seat-modal-header h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.auto-seat-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn-auto-large {
  padding: 20px 24px;
  font-size: 16px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, #2563eb 100%);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 700;
  font-family: inherit;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.btn-auto-large:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

/* Diff Modal */
.diff-modal-content {
  width: 90%;
  max-width: 500px;
  padding: 28px;
}

.diff-modal-header {
  text-align: center;
  margin-bottom: 24px;
}

.diff-modal-header h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.diff-saved-at {
  font-size: 14px;
  color: var(--text-tertiary);
}

.diff-summary {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
}

.diff-item {
  text-align: center;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  min-width: 100px;
}

.diff-item.matched {
  background: var(--accent-success-light);
  color: #065f46;
}

.diff-item.new {
  background: var(--accent-info-light);
  color: #3730a3;
}

.diff-item.absent {
  background: var(--accent-danger-light);
  color: #991b1b;
}

.diff-count {
  display: block;
  font-size: 32px;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
}

.diff-label {
  font-size: 12px;
  font-weight: 500;
}

.diff-details {
  max-height: 180px;
  overflow-y: auto;
  margin-bottom: 24px;
  font-size: 14px;
}

.diff-section {
  margin-bottom: 16px;
}

.diff-section-title {
  font-weight: 600;
  margin-bottom: 8px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.diff-section-title.new {
  background: var(--accent-info-light);
  color: #3730a3;
}

.diff-section-title.absent {
  background: var(--accent-danger-light);
  color: #991b1b;
}

.diff-section-list {
  padding-left: 24px;
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.8;
}

.diff-modal-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.diff-modal-buttons .btn {
  min-width: 120px;
}

/* ===========================
   Print Page Styles
   =========================== */
.print-page {
  background: white;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
  padding: 20mm;
  position: relative;
  display: flex;
  flex-direction: column;
}

.print-page.a4 {
  width: 300mm;
  min-height: 400mm;
  transform: scale(0.85);
  transform-origin: top center;
}

.print-page.a3 {
  width: 297mm;
  min-height: 420mm;
}

.print-stage {
  position: absolute;
  top: 20mm;
  left: 50%;
  transform: translateX(-50%);
  width: 40%;
  height: 80px;
  border: 2px solid var(--text-primary);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-tertiary);
}

.print-special-box,
.print-pa-box {
  position: absolute;
  top: 20mm;
  width: 120px;
  height: 80px;
  border: 2px solid var(--accent-warning);
  border-radius: var(--radius-md);
  background: var(--accent-warning-light);
  padding: 8px;
  display: flex;
  flex-direction: column;
}

.print-special-box { right: 20mm; }
.print-pa-box { left: 20mm; }

.print-special-label {
  font-size: 12px;
  font-weight: 700;
  color: #92400e;
  margin-bottom: 4px;
  text-align: center;
}

.print-special-card {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}

.print-tables-grid {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  margin-top: 120px;
  padding-bottom: 120px;
}

.print-table-row {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.print-table-card {
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 12px;
  background: var(--bg-secondary);
  flex: 0 0 auto;
}

.print-page.a4 .print-table-card { width: 280px; }
.print-page.a3 .print-table-card { width: 360px; }

.print-table-header {
  text-align: center;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--text-primary);
}

.print-seats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.print-seat {
  min-height: 65px;
  border-radius: var(--radius-sm);
  padding: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  line-height: 1.3;
}

.print-page.a4 .print-seat { min-height: 65px; font-size: 14px; }
.print-page.a3 .print-seat { min-height: 75px; font-size: 16px; }

.print-seat-label {
  font-size: 10px;
  font-weight: 700;
  margin-bottom: 2px;
}

.print-page.a4 .print-seat-label { font-size: 10px; }
.print-page.a3 .print-seat-label { font-size: 11px; }

.print-seat.master {
  background: var(--accent-warning-light);
  border: 2px solid var(--accent-warning);
}

.print-seat.jikai {
  background: var(--accent-success-light);
  border: 2px solid var(--accent-success);
  color: #065f46;
}

.print-seat.guest {
  background: rgba(59, 130, 246, 0.1);
  border: 2px solid var(--accent-primary);
  color: #1e40af;
}

.print-seat.other-venue {
  background: #fed7aa;
  border: 2px solid #f97316;
  color: #9a3412;
}

/* ===========================
   Print Media
   =========================== */
@media print {
  @page {
    margin: 15mm;
    size: auto;
  }

  body * {
    visibility: hidden;
    display: none;
  }

  .print-preview-area,
  .print-preview-area *,
  .print-page,
  .print-page * {
    visibility: visible;
    display: block;
  }

  body {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    min-height: 100vh !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .print-page {
    display: flex !important;
    flex-direction: column !important;
    position: relative !important;
  }

  .print-stage,
  .print-seat,
  .print-pa-box,
  .print-special-box {
    display: flex !important;
  }

  .print-tables-grid {
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
  }

  .print-table-row {
    display: flex !important;
  }

  .print-seats-grid {
    display: grid !important;
  }

  .header,
  .status-bar,
  .summary-section,
  .preview-section,
  .config-section,
  .main-container,
  .side-zone,
  .waiting-zone,
  .waiting-slot,
  .special-zone,
  .print-modal-header,
  .print-controls {
    display: none !important;
    visibility: hidden !important;
  }

  .print-preview-area {
    position: static !important;
    background: white;
    padding: 0;
    margin: 0;
  }

  .print-page {
    box-shadow: none;
    margin: 0 auto;
    padding: 10mm;
    width: 100%;
  }

  .print-page.a4,
  .print-page.a3 {
    width: 100%;
    height: auto;
    max-width: none;
  }
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 1024px) {
  .main-container {
    grid-template-columns: 1fr;
  }

  .table-card {
    width: 100%;
    min-width: unset;
    max-width: none;
  }

  .side-zone {
    flex-direction: row;
    gap: 16px;
  }

  .waiting-zone,
  .special-zone {
    flex: 1;
  }
}

@media (max-width: 768px) {
  .header {
    padding: 12px 16px;
    height: auto;
    flex-direction: column;
    gap: 12px;
  }

  .header-left,
  .header-right {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .btn {
    padding: 10px 14px;
    font-size: 13px;
  }

  .status-bar {
    padding: 12px 16px;
    font-size: 13px;
  }

  .config-section {
    padding: 16px;
  }

  .config-card {
    padding: 20px;
  }

  .config-grid {
    grid-template-columns: 1fr;
  }

  .main-container {
    padding: 16px;
    gap: 16px;
  }

  .side-zone {
    flex-direction: column;
  }

  .seating-area {
    padding: 16px;
  }

  .diff-modal-content {
    padding: 20px;
  }

  .diff-summary {
    flex-direction: column;
    gap: 12px;
  }

  .diff-item {
    min-width: unset;
  }

  .print-modal-content {
    border-radius: var(--radius-md);
  }

  .print-controls {
    flex-wrap: wrap;
  }

  .layout-options {
    flex-direction: column;
    gap: 12px;
  }

  .layout-card {
    flex: none;
    width: 100%;
    padding: 12px;
  }

  .layout-mini {
    margin: 12px 0;
    gap: 4px;
  }

  .layout-dot {
    width: 24px;
    height: 24px;
    font-size: 10px;
  }

  .layout-row {
    gap: 6px;
  }

  .layout-check {
    font-size: 11px;
  }
}

@media (max-width: 480px) {
  .header-left,
  .header-right {
    gap: 8px;
  }

  .btn {
    padding: 8px 12px;
    font-size: 12px;
  }

  .seat {
    min-height: 56px;
  }

  .person-card {
    font-size: 11px;
    padding: 6px 8px;
  }

  .diff-count {
    font-size: 28px;
  }
}

/* ===========================
   Utility Classes
   =========================== */
.hidden {
  display: none !important;
}

.fade-in {
  animation: fadeIn 0.3s ease;
}