/* ===== Page-specific styles only — uses vars from theme.css ===== */
  body {
    display: flex; flex-direction: column;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
  }
  /* Topnav padding compensation */
  .topnav { margin-bottom: 0; }

  /* ===== MAIN: split pane ===== */
  main {
    flex: 1;
    display: flex; flex-direction: column;
    position: relative;
    overflow: hidden;
  }

  /* Drop zone (initial state) */
  #drop-zone {
    flex: 1;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 30px;
    background: var(--bg);
    transition: background 0.15s;
  }
  #drop-zone.dragover {
    background: var(--surface);
    outline: 3px dashed var(--success);
    outline-offset: -20px;
  }
  #drop-zone .icon {
    font-size: 56px; opacity: 0.5; margin-bottom: 20px;
  }
  #drop-zone .title {
    font-family: var(--serif);
    font-size: 28px;
    color: var(--text);
    font-weight: 400;
    letter-spacing: 0.04em;
    margin-bottom: 8px;
  }
  #drop-zone .title em {
    color: var(--accent);
    font-style: italic;
  }
  #drop-zone .hint {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-3);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
  }
  #drop-zone .divider {
    color: var(--text-3);
    font-family: var(--mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin: 18px 0 10px;
    display: flex; align-items: center; gap: 12px;
    width: 100%; max-width: 540px;
  }
  #drop-zone .divider::before, #drop-zone .divider::after {
    content: ''; flex: 1; height: 1px; background: var(--border);
  }
  #drop-zone .row {
    display: flex; gap: 8px;
    width: 100%; max-width: 540px;
    justify-content: center;
    flex-wrap: wrap;
  }
  #drop-zone input[type=text] {
    flex: 1; min-width: 240px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 14px;
    border-radius: 3px;
    font-family: var(--mono);
    font-size: 13px;
  }
  #drop-zone input[type=text]:focus {
    outline: none;
    border-color: var(--accent);
  }
  #drop-zone input[type=file] { display: none; }
  #drop-zone button, #drop-zone label.action {
    background: transparent;
    border: 1px solid var(--border-strong);
    color: var(--text);
    padding: 10px 18px;
    border-radius: 3px;
    font-family: var(--mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    cursor: pointer;
    transition: all 0.12s;
  }
  #drop-zone button:hover, #drop-zone label.action:hover {
    border-color: var(--accent);
    color: var(--accent);
  }
  #drop-zone button.primary, #drop-zone label.action.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg);
  }
  #drop-zone button.primary:hover, #drop-zone label.action.primary:hover {
    opacity: 0.85;
    color: var(--bg);
  }

  /* ===== Viewer canvas ===== */
  #viewer-canvas {
    flex: 1;
    width: 100%;
    height: 100%;
    cursor: grab;
    background: var(--bg-2);
    display: none;
  }
  #viewer-canvas.active { display: block; }
  #viewer-canvas:active { cursor: grabbing; }

  /* ===== Toolbar ===== */
  #toolbar {
    display: none;
    padding: 10px 18px;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 11px;
    align-items: center;
    gap: 10px;
  }
  #toolbar.active { display: flex; }
  #toolbar .btn {
    background: transparent;
    border: 1px solid var(--border-strong);
    color: var(--text-2);
    padding: 6px 12px;
    border-radius: 3px;
    font-family: var(--mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    cursor: pointer;
    transition: all 0.12s;
  }
  #toolbar .btn:hover { border-color: var(--accent); color: var(--accent); }
  #toolbar .btn.active { background: var(--accent); color: var(--bg); border-color: var(--accent); }
  #toolbar .stats { color: var(--text-3); margin-left: auto; font-size: 11px; }
  #toolbar .stats span { color: var(--text); }

  /* ===== Status overlays ===== */
  #loading {
    position: fixed; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-2);
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 14px 22px;
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    z-index: 50;
    display: none;
  }
  #loading.active { display: block; }
  #error {
    position: fixed; top: 70px; left: 50%;
    transform: translateX(-50%);
    background: var(--bg-2);
    border: 1px solid var(--danger);
    border-left-width: 3px;
    color: var(--danger);
    padding: 12px 20px;
    border-radius: 3px;
    max-width: 540px;
    font-family: var(--mono);
    font-size: 12px;
    z-index: 50;
    display: none;
  }
  #error.active { display: block; }

  /* ===== Dropbox file picker modal ===== */
  #file-picker {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(6px);
    z-index: 60;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 30px;
  }
  #file-picker.active { display: flex; }
  .fp-panel {
    background: var(--bg-2);
    border: 1px solid var(--border-strong);
    border-radius: 6px;
    width: 100%;
    max-width: 540px;
    max-height: 70vh;
    display: flex; flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  }
  .fp-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text);
  }
  .fp-close {
    background: transparent; border: 1px solid var(--border); color: var(--text-2);
    padding: 4px 10px; border-radius: 3px; cursor: pointer;
    font-family: inherit; font-size: 11px;
  }
  .fp-close:hover { border-color: var(--danger); color: var(--danger); }
  .fp-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
  }
  .fp-item {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 18px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.1s;
  }
  .fp-item:hover { background: var(--surface); }
  .fp-item .ico { font-size: 20px; opacity: 0.85; }
  .fp-item .meta { flex: 1; min-width: 0; }
  .fp-item .name {
    font-family: var(--sans);
    font-size: 13px;
    color: var(--text);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  }
  .fp-item .sub {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-3);
    margin-top: 2px;
  }
  .fp-item .ttl-ok { color: var(--success); }
  .fp-item .ttl-warn { color: var(--warning); }
  .fp-item .ttl-crit { color: var(--danger); }
  .fp-empty { padding: 30px; text-align: center; color: var(--text-3); font-size: 13px; }
  .fp-error { padding: 30px; text-align: center; color: var(--danger); font-size: 13px; }