:root {
    --paper: #fffdf7;
    --grid-line: #cfe0ef;
    --ink: #26313a;
    --ink-soft: #5b6b76;
    --red-pen: #d84a3b;
    --red-pen-dark: #b93a2d;
    --card-bg: #ffffff;
    --card-border: #e4e0d3;
    --field-bg: #fffefb;
    --field-border: #d9d4c4;
    --chip-bg: #f2efe6;
    --pencil-1: #e4572e;
    --pencil-2: #2d8fd9;
    --pencil-3: #2f9e5c;
    --pencil-4: #9b59b6;
    --pencil-5: #d9a913;
    --pencil-6: #e0568c;
  }

  * { box-sizing: border-box; }

  body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Inter', sans-serif;
    color: var(--ink);
    background-color: var(--paper);
    background-image:
      linear-gradient(var(--grid-line) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 28px 28px;
    background-attachment: fixed;
  }

  a { color: inherit; }

  /* ---------- Header ---------- */
  header.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
    padding: 1.4rem 1.8rem;
    background: var(--paper);
    border-bottom: 1.5px solid var(--card-border);
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .brand-logo {
    width: 72px;
    height: 72px;
    border-radius: 14px;
    padding: 5px;
    background: #fff;
    border: 1.5px solid var(--card-border);
    box-shadow: 0 2px 8px rgba(38,49,58,0.08);
    flex-shrink: 0;
  }
  .brand-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
    display: block;
  }

  .brand-text h1 {
    font-family: 'Caveat', cursive;
    font-weight: 700;
    font-size: 1.9rem;
    color: var(--ink);
    margin: 0;
    line-height: 1.1;
  }
  .brand-text .brand-sub {
    display: block;
    font-size: 0.85rem;
    color: var(--ink-soft);
    margin-top: 2px;
  }
  .creator-badge {
    display: inline-block;
    color: var(--red-pen);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-top: 6px;
    border: 1.5px dashed var(--red-pen);
    border-radius: 999px;
    padding: 2px 10px;
  }
  .creator-badge strong { font-weight: 800; }

  /* ---------- Account widget ---------- */
  .account-widget {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    background: var(--card-bg);
    border: 1.5px solid var(--card-border);
    border-radius: 14px;
    padding: 10px 14px;
  }
  .account-status {
    font-size: 0.82rem;
    color: var(--ink-soft);
    white-space: nowrap;
  }
  .auth-form {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
  }
  input[type="email"], input[type="password"], input[type="text"] {
    font-family: inherit;
    font-size: 0.88rem;
    color: var(--ink);
    background: var(--field-bg);
    border: 1.5px solid var(--field-border);
    border-radius: 8px;
    padding: 8px 10px;
  }
  input::placeholder { color: var(--ink-soft); opacity: 0.7; }
  input:focus-visible {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 1px;
  }

  .btn {
    font-family: inherit;
    font-weight: 700;
    font-size: 0.85rem;
    border-radius: 9px;
    padding: 8px 14px;
    cursor: pointer;
    border: none;
    transition: transform 0.1s ease, background 0.15s ease;
  }
  .btn-primary {
    background: var(--red-pen);
    color: #fff;
  }
  .btn-primary:hover { background: var(--red-pen-dark); }
  .btn-ghost {
    background: #fff;
    color: var(--ink);
    border: 1.5px solid var(--field-border);
  }
  .btn-ghost:hover { background: var(--chip-bg); }
  .btn:active { transform: scale(0.98); }
  .btn:focus-visible {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 2px;
  }

  .auth-message {
    width: 100%;
    font-size: 0.8rem;
    color: var(--red-pen-dark);
    display: none;
  }
  .auth-message.show { display: block; }
  .auth-message.success { color: var(--pencil-3); }

  .firebase-note {
    width: 100%;
    font-size: 0.76rem;
    color: var(--ink-soft);
    margin: 6px 0 0;
    display: flex;
    align-items: center;
    gap: 5px;
  }
  .firebase-note strong { color: var(--ink); }

  /* ---------- App shell: sidebar + workspace ---------- */
  .app-shell {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 20px 60px;
  }

  .view-area { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; gap: 20px; }

  .main-nav {
    flex: 0 0 240px;
    background: var(--card-bg);
    border: 1.5px solid var(--card-border);
    border-radius: 16px;
    padding: 14px;
    position: sticky;
    top: 20px;
    box-shadow: 0 1px 0 rgba(0,0,0,0.02), 0 12px 30px -18px rgba(38,49,58,0.2);
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .nav-section-label {
    font-family: 'Caveat', cursive;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--ink-soft);
    margin: 14px 6px 2px;
  }
  .nav-item {
    text-align: left;
    background: transparent;
    border: 1.5px solid transparent;
    border-radius: 9px;
    padding: 10px 12px;
    color: var(--ink);
    font-family: inherit;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
  }
  .nav-item:hover { background: var(--chip-bg); }
  .nav-item.active {
    background: #fdf1ef;
    border-color: #f1c7c0;
    color: var(--red-pen-dark);
  }
  .nav-item:focus-visible {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 2px;
  }

  .view { display: flex; flex-direction: column; gap: 20px; }
  .view.is-hidden { display: none !important; }

  .group-picker-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    background: var(--card-bg);
    border: 1.5px solid var(--card-border);
    border-radius: 14px;
    padding: 12px 16px;
  }
  .group-picker-bar.is-hidden { display: none !important; }
  .group-picker-bar label { margin: 0; }
  .group-picker-bar select {
    font-family: inherit;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--ink);
    background: var(--field-bg);
    border: 1.5px solid var(--field-border);
    border-radius: 8px;
    padding: 8px 10px;
    min-width: 200px;
  }
  .group-picker-bar select:focus-visible {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 1px;
  }
  .group-picker-hint {
    font-size: 0.82rem;
    color: var(--ink-soft);
  }

  .manage-list-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 4px 0 12px;
  }
  .manage-list-head span {
    font-family: 'Caveat', cursive;
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--ink);
  }
  .icon-btn {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: 1.5px solid var(--field-border);
    background: var(--chip-bg);
    color: var(--red-pen);
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .icon-btn:hover { background: #f7e2df; }
  .icon-btn:focus-visible {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 2px;
  }

  .group-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .group-item {
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .group-item button.group-select {
    flex: 1;
    text-align: left;
    background: transparent;
    border: 1.5px solid transparent;
    border-radius: 9px;
    padding: 9px 10px;
    color: var(--ink);
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .group-item button.group-select:hover { background: var(--chip-bg); }
  .group-item.active button.group-select {
    background: #fdf1ef;
    border-color: #f1c7c0;
    color: var(--red-pen-dark);
  }
  .group-item .mini-btn {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    border: none;
    background: transparent;
    color: var(--ink-soft);
    font-size: 0.8rem;
    cursor: pointer;
    flex-shrink: 0;
  }
  .group-item .mini-btn:hover { color: var(--ink); background: var(--chip-bg); }

  .sidebar-hint {
    font-size: 0.8rem;
    color: var(--ink-soft);
    line-height: 1.5;
    margin: 6px 2px 0;
  }

  .join-group-block {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1.5px dashed var(--card-border);
  }
  .join-form {
    display: flex;
    gap: 6px;
    margin-top: 6px;
  }
  .join-form input {
    flex: 1;
    min-width: 0;
    font-family: inherit;
    font-size: 0.85rem;
    color: var(--ink);
    background: var(--field-bg);
    border: 1.5px solid var(--field-border);
    border-radius: 8px;
    padding: 8px 9px;
    text-transform: uppercase;
  }
  .join-form input:focus-visible {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 1px;
  }
  .join-form .btn-ghost {
    padding: 8px 12px;
    font-size: 0.8rem;
  }
  .join-message {
    font-size: 0.78rem;
    color: var(--ink-soft);
    margin: 6px 2px 0;
    min-height: 1em;
  }

  /* ---------- Workspace ---------- */
  .workspace {
    flex: 1 1 auto;
    min-width: 0;
    background: var(--card-bg);
    border: 1.5px solid var(--card-border);
    border-radius: 16px;
    padding: 26px 28px 30px;
    box-shadow: 0 1px 0 rgba(0,0,0,0.02), 0 12px 30px -18px rgba(38,49,58,0.25);
  }

  .workspace-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 6px;
  }
  .workspace-head h2 {
    font-family: 'Caveat', cursive;
    font-weight: 700;
    font-size: 2rem;
    color: var(--ink);
    margin: 0;
  }
  .save-indicator {
    font-size: 0.78rem;
    color: var(--pencil-3);
    min-height: 1em;
  }

  .workspace-sub {
    color: var(--ink-soft);
    font-size: 0.88rem;
    margin: 0 0 18px;
  }

  label.field-label {
    display: block;
    font-weight: 600;
    font-size: 0.92rem;
    margin-bottom: 8px;
    color: var(--ink);
  }

  textarea {
    width: 100%;
    min-height: 160px;
    resize: vertical;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    padding: 14px 16px;
    border: 1.5px solid var(--field-border);
    border-radius: 10px;
    background: var(--field-bg);
    color: var(--ink);
  }
  textarea::placeholder { color: var(--ink-soft); opacity: 0.7; }
  textarea:focus-visible {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 2px;
  }

  .hint {
    font-size: 0.85rem;
    color: var(--ink-soft);
    margin-top: 6px;
  }

  .config-row {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-top: 26px;
    align-items: flex-end;
  }
  .field-group { flex: 1 1 220px; }

  .mode-toggle {
    display: flex;
    gap: 8px;
    background: var(--chip-bg);
    padding: 4px;
    border-radius: 10px;
    margin-top: 4px;
  }
  .mode-toggle button {
    flex: 1;
    border: none;
    background: transparent;
    padding: 9px 10px;
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--ink-soft);
    border-radius: 7px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
  }
  .mode-toggle button[aria-pressed="true"] {
    background: #fff;
    color: var(--ink);
    box-shadow: 0 1px 3px rgba(0,0,0,0.12);
  }
  .mode-toggle button:focus-visible {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 2px;
  }

  .number-field {
    display: flex;
    align-items: center;
    border: 1.5px solid var(--field-border);
    border-radius: 10px;
    overflow: hidden;
    background: var(--field-bg);
    margin-top: 4px;
  }
  .number-field button {
    background: var(--chip-bg);
    border: none;
    width: 40px;
    height: 42px;
    font-size: 1.1rem;
    font-family: inherit;
    color: var(--ink);
    cursor: pointer;
  }
  .number-field button:hover { background: #e9e4d5; }
  .number-field input {
    flex: 1;
    border: none;
    text-align: center;
    font-size: 1rem;
    font-family: inherit;
    color: var(--ink);
    background: transparent;
    padding: 0;
  }
  .number-field input:focus-visible { outline: none; }
  .number-field:focus-within {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 2px;
  }

  .draw-btn {
    display: block;
    width: 100%;
    margin-top: 28px;
    padding: 15px 20px;
    background: var(--red-pen);
    color: #fff;
    border: none;
    border-radius: 11px;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease;
  }
  .draw-btn:hover { background: var(--red-pen-dark); }
  .draw-btn:active { transform: scale(0.99); }
  .draw-btn:focus-visible {
    outline: 2.5px solid var(--ink);
    outline-offset: 3px;
  }

  .error {
    margin-top: 16px;
    padding: 12px 14px;
    background: #fdf1ef;
    border: 1.5px solid #f1c7c0;
    color: var(--red-pen-dark);
    border-radius: 9px;
    font-size: 0.92rem;
    font-weight: 500;
    display: none;
  }
  .error.show { display: block; }

  #results { margin-top: 40px; }

  .results-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
  }
  .results-head h3 {
    font-family: 'Caveat', cursive;
    font-weight: 700;
    font-size: 2rem;
    margin: 0;
    color: var(--ink);
  }
  .actions { display: flex; gap: 10px; }

  .groups-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 18px;
  }

  .result-group {
    border-radius: 14px;
    padding: 16px 16px 20px;
    background: #fbfaf5;
    border: 1.5px solid var(--card-border);
  }
  .result-group-title {
    font-family: 'Caveat', cursive;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 12px;
    padding-bottom: 8px;
    border-bottom: 2.5px dashed currentColor;
  }
  .tag-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
  .tag {
    background: #fff;
    border: 1.5px solid var(--card-border);
    border-radius: 8px;
    padding: 9px 12px;
    font-size: 0.96rem;
    font-weight: 500;
    color: var(--ink);
    opacity: 0;
    transform: translateY(6px);
    animation: dealIn 0.35s ease forwards;
    animation-delay: var(--delay, 0s);
  }
  @keyframes dealIn { to { opacity: 1; transform: translateY(0); } }
  @media (prefers-reduced-motion: reduce) { .tag { animation: none; opacity: 1; transform: none; } }

  footer.app-footer {
    text-align: center;
    padding: 26px 20px 40px;
    color: var(--ink-soft);
    font-size: 0.82rem;
  }
  footer.app-footer strong { color: var(--red-pen); }
  .footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }
  .footer-logo {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    object-fit: cover;
  }
  .footer-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 12px;
  }
  .footer-nav a {
    font-size: 0.82rem;
    color: var(--ink-soft);
    text-decoration: none;
    font-weight: 700;
  }
  .footer-nav a:hover { color: var(--red-pen); text-decoration: underline; }
  .footer-nav a:focus-visible {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 2px;
  }

  .call-workspace { margin-top: 0; }

  .checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--ink);
    cursor: pointer;
    margin-top: 4px;
    padding: 11px 2px;
  }
  .checkbox-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--red-pen);
    cursor: pointer;
  }

  .slot-window {
    margin-top: 20px;
    background: var(--ink);
    border: 3px solid var(--red-pen);
    border-radius: 14px;
    padding: 30px 20px;
    text-align: center;
    overflow: hidden;
    box-shadow: inset 0 3px 12px rgba(0,0,0,0.45);
  }
  .slot-window span {
    font-family: 'Caveat', cursive;
    font-weight: 700;
    font-size: clamp(1.8rem, 5vw, 2.6rem);
    color: #fffdf7;
    display: inline-block;
    word-break: break-word;
  }
  .slot-window.landed span {
    color: var(--pencil-5);
    text-shadow: 0 0 18px rgba(217,169,19,0.5);
  }

  .call-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 18px;
  }
  .call-actions .draw-btn {
    flex: 1 1 200px;
    margin-top: 0;
  }
  .call-actions .btn-ghost { flex: 0 0 auto; }

  .called-chips {
    list-style: none;
    margin: 16px 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .called-chips li {
    background: var(--chip-bg);
    border: 1.5px solid var(--card-border);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--ink);
  }

  /* ---------- Sitzplan ---------- */
  .layout-toggle { max-width: 480px; }

  .layout-params {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 16px;
    padding: 14px 16px;
    background: #fbfaf5;
    border: 1.5px solid var(--card-border);
    border-radius: 12px;
  }
  .param-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 140px;
  }
  .param-field input[type="number"] {
    font-family: inherit;
    font-size: 0.92rem;
    color: var(--ink);
    background: var(--field-bg);
    border: 1.5px solid var(--field-border);
    border-radius: 8px;
    padding: 8px 10px;
  }
  .param-field input:focus-visible {
    outline: 2.5px solid var(--red-pen);
    outline-offset: 1px;
  }
  #useExistingDrawRow { flex-basis: 100%; padding: 4px 0 0; }

  .seating-room-wrap { overflow-x: auto; }

  .desk-grid { min-width: max-content; }

  .grid-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    user-select: none;
  }
  .grid-cell.empty-cell {
    border: 1.5px dashed var(--field-border);
    color: var(--ink-soft);
    opacity: 0.5;
  }
  .grid-cell.empty-cell:hover {
    opacity: 1;
    border-color: var(--red-pen);
    color: var(--red-pen);
    background: #fdf1ef;
  }
  .grid-cell.has-desk {
    border: 1.5px solid var(--card-border);
    background: #fff;
  }
  .grid-cell.has-desk:hover {
    border-color: var(--red-pen);
    background: #fdf1ef;
  }

  .seating-room.edit-mode {
    border-color: var(--red-pen);
    box-shadow: 0 0 0 3px rgba(216,74,59,0.12);
  }

  .rules-panel {
    margin-top: 20px;
    border: 1.5px solid var(--card-border);
    border-radius: 12px;
    padding: 4px 16px;
    background: #fbfaf5;
  }
  .rules-panel summary {
    cursor: pointer;
    font-weight: 700;
    font-size: 0.92rem;
    padding: 12px 0;
    color: var(--ink);
  }
  .rules-block { padding: 6px 0 16px; }
  .rules-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--ink-soft);
    margin: 4px 0 8px;
  }
  .chip-toggle-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }
  .chip-toggle {
    border: 1.5px solid var(--field-border);
    background: #fff;
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--ink-soft);
    cursor: pointer;
  }
  .chip-toggle.active {
    background: #fdf1ef;
    border-color: var(--red-pen);
    color: var(--red-pen-dark);
  }

  .rule-builder {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
  }
  .rule-builder select {
    font-family: inherit;
    font-size: 0.86rem;
    color: var(--ink);
    background: var(--field-bg);
    border: 1.5px solid var(--field-border);
    border-radius: 8px;
    padding: 7px 8px;
    min-width: 130px;
  }
  .rule-list {
    list-style: none;
    margin: 10px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .rule-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #fff;
    border: 1.5px solid var(--card-border);
    border-radius: 8px;
    padding: 7px 10px;
    font-size: 0.85rem;
  }
  .rule-list button {
    border: none;
    background: transparent;
    color: var(--ink-soft);
    cursor: pointer;
    font-size: 0.9rem;
  }
  .rule-list button:hover { color: var(--red-pen-dark); }

  .seating-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 20px;
  }
  .seating-actions .draw-btn { flex: 1 1 220px; margin-top: 0; }
  .seating-actions .btn-ghost { flex: 0 0 auto; }

  .seating-room {
    margin-top: 20px;
    background: #fbfaf5;
    border: 1.5px solid var(--card-border);
    border-radius: 14px;
    padding: 20px;
  }
  .board-bar {
    text-align: center;
    background: var(--ink);
    color: #fffdf7;
    font-family: 'Caveat', cursive;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 8px;
    padding: 6px 0;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
  }
  .desk-grid {
    display: grid;
    gap: 10px;
    justify-content: center;
  }
  .desk {
    display: flex;
    border-radius: 10px;
    overflow: hidden;
    border: 1.5px solid var(--card-border);
    background: #fff;
    min-width: 110px;
  }
  .desk.conflict { border-color: var(--red-pen); box-shadow: 0 0 0 2px rgba(216,74,59,0.25); }
  .seat {
    flex: 1;
    min-height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--ink);
    padding: 6px 4px;
    cursor: pointer;
    border-right: 1.5px dashed var(--card-border);
    word-break: break-word;
  }
  .seat:last-child { border-right: none; }
  .seat.empty { color: var(--ink-soft); font-weight: 400; font-style: italic; cursor: default; }
  .seat.front-marked { background: #fdf6e0; }
  .seat.selected { background: var(--red-pen); color: #fff; }

  .print-only { display: none; }
  @media print {
    body.print-mode > *:not(#printRoot) { display: none !important; }
    body.print-mode #printRoot { display: block !important; }
    body.print-mode { background: #fff; }
    #printRoot h2 { font-family:'Caveat',cursive; font-size: 1.8rem; margin: 0 0 4px; }
    #printRoot .print-meta { font-size: 0.85rem; color: #555; margin-bottom: 16px; }
    @page { size: landscape; margin: 14mm; }
  }

  @media (max-width: 760px) {
    .app-shell { flex-direction: column; }
    .main-nav { flex: 1 1 auto; width: 100%; position: static; flex-direction: row; flex-wrap: wrap; }
  }