/* ---------- Global search (button opens a popup dialog) ---------- */
  .search-toggle {
    width: 38px; height: 38px;
    background: linear-gradient(180deg, #7dd3fc, #38bdf8);
    border: none;
    color: #0a0e1a;
    border-radius: 10px;
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: filter 0.15s, transform 0.15s var(--spring), box-shadow 0.15s;
    padding: 0;
    box-shadow: 0 4px 12px rgba(56,189,248,0.32);
    flex-shrink: 0;
    order: 99;
  }
  .search-toggle:hover { filter: brightness(1.08); box-shadow: 0 6px 18px rgba(56,189,248,0.5); }
  .search-toggle:active { transform: scale(0.94); }

  /* Popup dialog */
  .search-dialog {
    margin: 80px auto auto auto;
    max-width: min(580px, calc(100vw - 32px));
    width: 100%;
    max-height: calc(100dvh - 100px);
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text);
    overflow: visible;
  }
  .search-dialog::backdrop {
    background: rgba(5, 8, 16, 0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
  .search-popup-panel {
    background: linear-gradient(180deg, rgba(30,41,59,0.97), rgba(17,23,41,0.97));
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    box-shadow: 0 25px 60px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(255,255,255,0.03);
    overflow: hidden;
    animation: modalIn 0.22s var(--spring);
    display: flex;
    flex-direction: column;
    max-height: calc(100dvh - 100px);
  }
  .search-popup-input-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--panel-border);
    flex-shrink: 0;
  }
  .search-popup-icon { color: var(--muted); flex-shrink: 0; }
  .search-popup-input-row input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 16px;
    font-family: inherit;
    outline: none;
    min-width: 0;
    padding: 4px 0;
  }
  .search-popup-input-row input::placeholder { color: var(--muted); }
  .search-popup-input-row input::-webkit-search-cancel-button { display: none; }
  .search-popup-close {
    background: rgba(15,23,42,0.6);
    color: var(--muted);
    border: 1px solid var(--panel-border);
    width: 30px; height: 30px;
    border-radius: 7px;
    cursor: pointer;
    font-size: 18px;
    line-height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 0;
    transition: color 0.15s, border-color 0.15s, transform 0.15s var(--spring);
  }
  .search-popup-close:hover { color: var(--text); border-color: var(--accent); }
  .search-popup-close:active { transform: scale(0.92); }
  .search-popup-results {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    text-decoration: none;
    color: var(--text);
    cursor: pointer;
    border-bottom: 1px solid rgba(148, 163, 184, 0.08);
    transition: background 0.15s;
  }
  .search-result-item:hover { background: rgba(56,189,248,0.10); }
  .search-result-item:last-child { border-bottom: none; }
  .search-result-icon {
    width: 32px; height: 32px;
    border-radius: 8px;
    display: grid; place-items: center;
    font-size: 14px; font-weight: 700;
    line-height: 1;
    color: #0a0e1a;
    flex-shrink: 0;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.25), 0 4px 10px rgba(0,0,0,0.3);
  }
  .search-result-text { flex: 1; min-width: 0; }
  .search-result-name {
    font-weight: 600;
    font-size: 13.5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .search-result-cat {
    color: var(--muted);
    font-size: 11px;
    font-weight: 500;
    margin-top: 1px;
  }
  .search-empty {
    padding: 16px;
    color: var(--muted);
    font-size: 13px;
    text-align: center;
  }
  .search-history-icon {
    width: 32px; height: 32px;
    border-radius: 8px;
    background: rgba(148,163,184,0.12);
    display: grid; place-items: center;
    font-size: 14px;
    flex-shrink: 0;
    color: var(--muted);
  }
  .search-history-remove {
    background: none; border: none; color: var(--muted);
    font-size: 13px; cursor: pointer; padding: 4px 6px;
    border-radius: 6px; flex-shrink: 0;
    transition: color 0.15s, background 0.15s;
  }
  .search-history-remove:hover { color: var(--text); background: rgba(148,163,184,0.15); }
  .search-history-item { cursor: pointer; }
  .search-section {
    padding: 10px 14px 4px;
    color: var(--muted);
    font-size: 10.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    background: rgba(15,23,42,0.4);
    border-bottom: 1px solid rgba(148,163,184,0.08);
    position: sticky;
    top: 0;
    backdrop-filter: blur(8px);
  }
  .brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
  .brand .logo {
    width: 38px; height: 38px;
    border-radius: 11px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(56,189,248,0.4);
    flex-shrink: 0;
    line-height: 0;
  }
  .brand .logo img { width: 100%; height: 100%; display: block; }
  .brand h1 { margin: 0; font-size: 18px; font-weight: 700; letter-spacing: -0.02em; }
  .brand .subtitle { color: var(--muted); font-size: 12px; font-weight: 500; }
  .cat-header-icon {
    width: 34px; height: 34px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    line-height: 0;
    padding-bottom: 1px;
    color: white;
    flex-shrink: 0;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.2), 0 4px 12px rgba(0,0,0,0.35);
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  }
  .badge {
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(56,189,248,0.12);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    border: 1px solid rgba(56,189,248,0.25);
    white-space: nowrap;
    flex-shrink: 0;
  }

  /* Back button on visualizer */
  .btn-back {
    background: rgba(15,23,42,0.7);
    border: 1px solid var(--panel-border);
    color: var(--text);
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.15s, color 0.15s, transform 0.15s var(--spring);
    flex-shrink: 0;
  }
  .btn-back:hover { border-color: var(--accent); color: var(--accent); }
  .btn-back:active { transform: scale(0.96); }

  /* ---------- Modal ---------- */
  .modal-dialog {
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text);
    max-width: min(480px, calc(100vw - 32px));
    width: 100%;
    max-height: 90vh;
    overflow: visible;
  }
  .modal-dialog::backdrop {
    background: rgba(5,8,16,0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
  .modal-panel {
    width: 100%;
    max-height: 90vh;
    overflow: auto;
    background: linear-gradient(180deg, rgba(30,41,59,0.97), rgba(17,23,41,0.97));
    border: 1px solid var(--panel-border);
    border-radius: 18px;
    box-shadow: 0 25px 60px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(255,255,255,0.03);
    animation: modalIn 0.25s var(--spring);
  }
  @keyframes modalIn {
    from { transform: translateY(12px) scale(0.98); opacity: 0; }
    to { transform: translateY(0) scale(1); opacity: 1; }
  }
  .modal-header {
    padding: 18px 20px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--panel-border);
    position: sticky;
    top: 0;
    z-index: 1;
    background: linear-gradient(180deg, rgba(30,41,59,0.97), rgba(17,23,41,0.97));
  }
  .modal-header h2 { margin: 0; font-size: 16px; font-weight: 700; letter-spacing: -0.01em; }
  .modal-close {
    background: rgba(15,23,42,0.6);
    color: var(--muted);
    border: 1px solid var(--panel-border);
    width: 32px; height: 32px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    display: grid;
    place-items: center;
    transition: color 0.15s, border-color 0.15s, transform 0.15s var(--spring);
  }
  .modal-close:hover { color: var(--text); border-color: var(--accent); }
  .modal-close:focus { outline: none; border-color: var(--panel-border); }
  .modal-close:active { transform: scale(0.92); }
  .modal-body { padding: 16px 20px 20px; display: flex; flex-direction: column; gap: 14px; }

  .op-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .op-input-row input {
    flex: 1;
    min-width: 0;
    background: rgba(10,14,26,0.7);
    border: 1px solid var(--panel-border);
    color: var(--text);
    padding: 9px 12px;
    border-radius: 8px;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 13px;
    min-height: 38px;
  }
  .op-input-row input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(56,189,248,0.18); }
  .op-input-row input::placeholder { color: var(--muted); }
  .op-input-row button {
    padding: 9px 14px;
    min-height: 38px;
    background: rgba(15,23,42,0.6);
    border: 1px solid var(--panel-border);
    color: var(--text);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.15s, color 0.15s, transform 0.15s var(--spring);
  }
  .op-input-row button:hover { border-color: var(--accent); color: var(--accent); }
  .op-input-row button:active { transform: scale(0.96); }

  .op-params-extra {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }
  .op-params-extra .param-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 0 0 calc(50% - 5px);
    min-width: 0;
  }
  .op-params-extra .param-field label {
    color: var(--muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
  }
  .op-params-extra .param-field input {
    background: rgba(10,14,26,0.7);
    border: 1px solid var(--panel-border);
    color: var(--text);
    padding: 9px 12px;
    border-radius: 8px;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 13px;
    width: 100%;
    min-height: 38px;
  }
  .op-params-extra .param-field.wide input { width: 100%; }
  .op-params-extra .param-field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(56,189,248,0.18); }

  .op-current {
    background: rgba(15,23,42,0.4);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 12px 14px;
  }
  .op-current-label {
    color: var(--muted);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .op-chips { display: flex; flex-wrap: wrap; gap: 6px; }
  .op-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px 4px 6px;
    background: rgba(56,189,248,0.10);
    border: 1px solid rgba(56,189,248,0.22);
    border-radius: 7px;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 12px;
    color: var(--text);
  }
  .op-chip .ix {
    color: var(--accent);
    font-size: 10px;
    font-weight: 700;
    background: rgba(56,189,248,0.15);
    padding: 1px 5px;
    border-radius: 4px;
  }
  .op-hint { color: var(--muted); font-size: 11px; margin-top: 8px; }

  .op-menu { display: flex; flex-direction: column; gap: 6px; }
  .op-menu-section {
    font-size: 10.5px;
    font-weight: 700;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    padding: 12px 6px 4px;
    border-top: 1px solid rgba(148,163,184,0.08);
    margin-top: 4px;
  }
  .op-menu-section:first-child {
    border-top: none;
    margin-top: 0;
    padding-top: 0;
  }
  .op-menu-section.current {
    color: var(--accent);
  }
  .op-menu-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    background: rgba(15,23,42,0.45);
    border: 1px solid var(--panel-border);
    color: var(--text);
    border-radius: 12px;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    transition: transform 0.15s var(--spring), border-color 0.15s, background 0.15s, box-shadow 0.15s;
  }
  .op-menu-item:hover { border-color: var(--accent); background: rgba(15,23,42,0.7); transform: translateY(-1px); box-shadow: 0 6px 18px rgba(56,189,248,0.18); }
  .op-menu-item:active { transform: translateY(0) scale(0.99); }
  .op-menu-icon {
    width: 40px; height: 40px;
    border-radius: 10px;
    display: grid; place-items: center;
    font-size: 22px; font-weight: 700;
    flex-shrink: 0;
    color: white;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.12), 0 4px 12px rgba(0,0,0,0.25);
  }
  /* Additive/blue icons */
  .op-menu-icon.insert,
  .op-menu-icon.push,
  .op-menu-icon.enqueue,
  .op-menu-icon.insert-front,
  .op-menu-icon.insert-end {
    background: linear-gradient(180deg, #7dd3fc, #38bdf8); color: #0a0e1a;
  }
  /* Destructive/red icons */
  .op-menu-icon.remove,
  .op-menu-icon.pop,
  .op-menu-icon.dequeue,
  .op-menu-icon.delete-at {
    background: linear-gradient(180deg, #fca5a5, #ef4444); color: #1a0606;
  }
  /* Search / lookup cyan icons */
  .op-menu-icon.search {
    background: linear-gradient(180deg, #67e8f9, #06b6d4); color: #0a0e1a;
  }
  /* Bulk / "connecting" purple icons */
  .op-menu-icon.bulk,
  .op-menu-icon.add-edge {
    background: linear-gradient(180deg, #c4b5fd, #8b5cf6); color: #0e0726;
  }
  .op-menu-text { flex: 1; min-width: 0; }
  .op-menu-title { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
  .op-menu-sub { color: var(--muted); font-size: 12px; }
  .op-menu-chevron { color: var(--muted); font-size: 22px; font-weight: 300; line-height: 1; margin-right: 2px; }

  .modal-back {
    background: rgba(15,23,42,0.6);
    color: var(--muted);
    border: 1px solid var(--panel-border);
    padding: 6px 10px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 12.5px;
    font-weight: 600;
    font-family: inherit;
    transition: color 0.15s, border-color 0.15s, transform 0.15s var(--spring);
  }
  .modal-back:hover { color: var(--text); border-color: var(--accent); }
  .modal-back:active { transform: scale(0.96); }

  .op-form {
    background: rgba(15,23,42,0.4);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 14px;
  }
  .op-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: stretch; }
  .op-row .field { display: flex; flex-direction: column; gap: 4px; flex: 0 0 calc(50% - 4px); min-width: 0; }
  .op-row .field label { color: var(--muted); font-size: 11px; font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; }
  .op-row input {
    background: rgba(10,14,26,0.7);
    border: 1px solid var(--panel-border);
    color: var(--text);
    padding: 9px 12px;
    border-radius: 8px;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 13px;
    min-height: 38px;
    width: 100%;
  }
  .op-row input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(56,189,248,0.18); }
  .op-actions { margin-top: 12px; display: flex; justify-content: flex-end; gap: 8px; }
  .op-btn {
    padding: 11px 18px;
    background: linear-gradient(180deg, #7dd3fc, #38bdf8);
    color: #0a0e1a;
    border: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 13.5px;
    font-family: inherit;
    cursor: pointer;
    min-height: 42px;
    transition: transform 0.15s var(--spring), box-shadow 0.15s, filter 0.15s;
    box-shadow: 0 4px 14px rgba(56,189,248,0.32);
    letter-spacing: 0.02em;
  }
  .op-btn:hover { box-shadow: 0 6px 18px rgba(56,189,248,0.5); filter: brightness(1.05); }
  .op-btn:active { transform: scale(0.97); }
  .op-btn.danger {
    background: linear-gradient(180deg, #fca5a5, #ef4444);
    color: #1a0606;
    box-shadow: 0 4px 14px rgba(239,68,68,0.32);
  }
  .op-btn.danger:hover { box-shadow: 0 6px 18px rgba(239,68,68,0.5); }

  .op-confirm {
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
    padding: 8px 0 4px;
  }

  /* ---------- Header Nav Tabs ---------- */
  .header-nav {
    display: flex;
    gap: 4px;
    background: rgba(30,41,59,0.6);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 3px;
    flex-shrink: 0;
  }
  .header-nav-item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 18px;
    border-radius: 9px;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    transition: background 0.18s, color 0.18s, box-shadow 0.18s, transform 0.12s var(--spring);
  }
  .header-nav-item svg { opacity: 0.7; transition: opacity 0.18s; }
  .header-nav-item:hover {
    color: var(--text);
    background: rgba(148,163,184,0.1);
  }
  .header-nav-item:hover svg { opacity: 0.9; }
  .header-nav-item:active { transform: scale(0.96); }
  .header-nav-item.active {
    background: rgba(56,189,248,0.12);
    color: #38bdf8;
    box-shadow: 0 0 0 1px rgba(56,189,248,0.25);
  }
  .header-nav-item.active svg { opacity: 1; }

  .company-chips {
    display: flex;
    gap: 6px;
    margin-top: 4px;
    flex-wrap: wrap;
  }
  .company-chip {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
  }
  .company-chip.difficulty-easy { background: rgba(74,222,128,0.15); color: #4ade80; }
  .company-chip.difficulty-medium { background: rgba(251,191,36,0.15); color: #fbbf24; }
  .company-chip.difficulty-hard { background: rgba(248,113,113,0.15); color: #f87171; }
  .company-chip.topic-chip { background: rgba(148,163,184,0.12); color: #94a3b8; }

  /* ---------- Progress Stats ---------- */
  .hero-stat {
    text-align: center;
    padding: 0 22px;
    border-right: 1px solid var(--panel-border);
  }
  .hero-stat:last-child { border-right: none; }
  .hero-stat-value {
    display: block;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(180deg, #ffffff, #93c5fd);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
    letter-spacing: -0.02em;
  }
  .hero-stat-label {
    display: block;
    color: var(--muted);
    font-size: 10.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 6px;
  }

  /* ---------- Bookmark Toggle ---------- */
  .bookmark-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.18s, background 0.18s;
    flex-shrink: 0;
  }
  .bookmark-toggle:hover {
    background: rgba(148,163,184,0.1);
    color: var(--text);
  }
  .bookmark-toggle.bookmarked {
    color: #38bdf8;
  }

  /* ---------- Section Label ---------- */
  .section-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin: 24px 0 8px 0;
  }

  /* ---------- Empty State ---------- */
  .empty-state {
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
    padding: 32px 0;
  }

  /* ---------- Progress Cards ---------- */
  .progress-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 12px;
    background: rgba(30,41,59,0.5);
    border: 1px solid var(--panel-border);
    text-decoration: none;
    color: var(--text);
    transition: background 0.18s, border-color 0.18s;
  }
  .progress-card:hover {
    background: rgba(30,41,59,0.8);
    border-color: rgba(56,189,248,0.25);
  }
  .progress-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    font-size: 16px;
    flex-shrink: 0;
  }
  .progress-card-name {
    flex: 1;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .progress-card-time {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
  }

  /* ---------- Progress Tiles ---------- */
  .progress-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
  }
  .progress-tile {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    border-radius: 16px;
    background: var(--panel);
    border: 1px solid var(--panel-border);
    text-decoration: none;
    color: var(--text);
    cursor: pointer;
    transition: transform 0.2s var(--spring), border-color 0.2s, box-shadow 0.2s;
  }
  .progress-tile:hover {
    transform: translateY(-2px);
    border-color: rgba(56,189,248,0.35);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  }
  .progress-tile-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    font-size: 22px;
    font-weight: 700;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    flex-shrink: 0;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.25), 0 4px 12px rgba(0,0,0,0.3);
  }
  .progress-tile-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
  }
  .progress-tile-title {
    font-size: 15px;
    font-weight: 700;
  }
  .progress-tile-count {
    font-size: 12px;
    color: var(--muted);
  }
  .progress-tile-chevron {
    font-size: 22px;
    color: var(--muted);
    flex-shrink: 0;
    opacity: 0.6;
    transition: transform 0.2s;
  }
  .progress-tile:hover .progress-tile-chevron {
    transform: translateX(3px);
    opacity: 1;
  }

  /* ---------- Settings Cards ---------- */
  .settings-card {
    background: rgba(30,41,59,0.5);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 18px;
    margin-bottom: 10px;
  }
  .settings-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
  }
  .settings-card-header strong {
    font-size: 15px;
    color: var(--text);
  }
  .settings-card-desc {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
  }
  .settings-slider-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 12px;
  }
  .settings-slider-row input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: rgba(148,163,184,0.25);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
  }
  .settings-slider-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #ffffff;
    border: none;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
    cursor: pointer;
  }
  .settings-slider-row input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #ffffff;
    border: none;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
    cursor: pointer;
  }
  .settings-slider-row input[type="range"]::-webkit-slider-runnable-track {
    height: 6px;
    border-radius: 3px;
  }
  .settings-slider-row input[type="range"]::-moz-range-track {
    height: 6px;
    background: rgba(148,163,184,0.25);
    border-radius: 3px;
    border: none;
  }
  .settings-slider-label {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
  }
  .settings-slider-value {
    font-size: 12px;
    font-weight: 600;
    color: #38bdf8;
    min-width: 48px;
    text-align: right;
  }

  /* ---------- Settings Toggle ---------- */
  .settings-toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
  }
  .settings-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
  }
  .settings-toggle-slider {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(148,163,184,0.3);
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s;
  }
  .settings-toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    bottom: 3px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.2s;
  }
  .settings-toggle input:checked + .settings-toggle-slider {
    background: #38bdf8;
  }
  .settings-toggle input:checked + .settings-toggle-slider::before {
    transform: translateX(20px);
  }

  /* ---------- Settings Reset Button ---------- */
  .settings-reset-btn {
    display: block;
    margin: 18px auto 0;
    padding: 10px 20px;
    background: transparent;
    border: none;
    color: #38bdf8;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.18s;
  }
  .settings-reset-btn:hover {
    background: rgba(56,189,248,0.1);
  }

  /* ---------- Settings About ---------- */
  .settings-about {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
    padding: 24px;
  }
  .settings-about img {
    border-radius: 12px;
  }
  .settings-about strong {
    font-size: 18px;
  }

  @media (max-width: 720px) {
    .header-nav-item {
      padding: 8px 10px;
      font-size: 11px;
      gap: 4px;
    }
  }