/* ── Tool Page Shared Styles ─────────────────────────────────────── */
/* Colors are inherited from main.css — do not redefine :root here */
:root {
  --radius: 14px; --radius-sm: 8px; --tr: .2s ease;
}

/* ── Tool Hero ───────────────────────────────────────────────────── */
.tool-hero {
  padding: 3.5rem 2rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.tool-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: inherit;
  filter: brightness(.4);
  z-index: 0;
}
.tool-hero > * { position: relative; z-index: 1; }
.tool-hero-icon {
  font-size: 3rem; margin-bottom: .75rem;
  display: inline-flex; align-items: center; justify-content: center;
  width: 72px; height: 72px; border-radius: 20px;
  background: rgba(255,255,255,.1); backdrop-filter: blur(8px);
}
.tool-hero h1 { font-size: clamp(1.6rem, 4vw, 2.5rem); font-weight: 800; margin-bottom: .5rem; color: #fff; }
.tool-hero p { color: rgba(255,255,255,.75); font-size: 1rem; max-width: 520px; margin: 0 auto; }

/* ── Workspace ───────────────────────────────────────────────────── */
.tool-workspace {
  max-width: 860px; margin: 0 auto; padding: 2.5rem 1.5rem 4rem;
}

/* ── Upload Zone ─────────────────────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--border2);
  border-radius: var(--radius);
  background: var(--bg2);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--tr);
  position: relative;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-bg);
}
.upload-zone.drag-over { transform: scale(1.005); }
.upload-zone input[type="file"] { display: none; }
.upload-cloud { font-size: 3rem; margin-bottom: 1rem; display: block; }
.upload-zone h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: .4rem; }
.upload-zone p { color: var(--muted); font-size: .88rem; margin-bottom: 1.25rem; }
.upload-btn {
  display: inline-flex; align-items: center; gap: .4rem;
  background: var(--accent); color: #fff; padding: .65rem 1.5rem;
  border-radius: 8px; font-weight: 600; font-size: .92rem; cursor: pointer;
  border: none; transition: background var(--tr);
}
.upload-btn:hover { background: var(--accent2); }
.upload-formats { display: block; margin-top: .75rem; color: var(--muted); font-size: .78rem; }

/* ── File List ───────────────────────────────────────────────────── */
.file-list-wrap { margin-top: 1.5rem; }
.file-list-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: .75rem;
}
.file-list-header h4 { font-size: .9rem; font-weight: 700; color: var(--muted2); }
.add-more-btn {
  background: none; border: 1px solid var(--border2); color: var(--accent);
  padding: .3rem .85rem; border-radius: 6px; font-size: .8rem; font-weight: 600;
  cursor: pointer; transition: all var(--tr);
}
.add-more-btn:hover { background: rgba(108,99,255,.1); }
.file-list { display: flex; flex-direction: column; gap: .6rem; }
.file-card {
  display: flex; align-items: center; gap: 1rem;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 10px; padding: .75rem 1rem;
  transition: all var(--tr);
}
.file-card:hover { border-color: var(--border2); }
.file-thumb {
  width: 44px; height: 56px; border-radius: 6px;
  background: var(--bg4); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; overflow: hidden;
}
.file-thumb canvas { width: 100%; height: 100%; object-fit: cover; }
.file-info { flex: 1; min-width: 0; }
.file-name {
  font-size: .88rem; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.file-size { font-size: .75rem; color: var(--muted); margin-top: 2px; }
.file-status { font-size: .75rem; margin-top: 2px; }
.file-status.ok { color: var(--success); }
.file-status.err { color: var(--error); }
.file-actions { display: flex; gap: .4rem; flex-shrink: 0; }
.file-remove {
  background: none; border: none; color: var(--muted); font-size: 1.1rem;
  cursor: pointer; padding: .2rem .4rem; border-radius: 4px; transition: all var(--tr);
}
.file-remove:hover { color: var(--error); background: rgba(255,77,109,.1); }
.drag-handle {
  color: var(--muted); cursor: grab; padding: .2rem;
  font-size: 1rem; user-select: none;
}
.drag-handle:active { cursor: grabbing; }

/* ── Page Thumbnails Grid (Organize/Split) ───────────────────────── */
.pages-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: .85rem; margin-top: 1rem;
}
.page-thumb-card {
  background: var(--bg3); border: 2px solid var(--border);
  border-radius: 8px; padding: .5rem; text-align: center;
  cursor: pointer; transition: all var(--tr); position: relative;
}
.page-thumb-card:hover, .page-thumb-card.selected { border-color: var(--accent); }
.page-thumb-card.selected { background: rgba(108,99,255,.1); }
.page-thumb-card .page-num {
  font-size: .72rem; color: var(--muted); margin-top: .35rem; display: block;
}
.page-thumb-card canvas { width: 100%; border-radius: 4px; display: block; }
.page-delete-btn {
  position: absolute; top: 3px; right: 3px;
  background: rgba(255,77,109,.85); color: #fff; border: none;
  border-radius: 50%; width: 18px; height: 18px; font-size: .65rem;
  cursor: pointer; display: none; align-items: center; justify-content: center;
}
.page-thumb-card:hover .page-delete-btn { display: flex; }

/* ── Options Panel ───────────────────────────────────────────────── */
.options-panel {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem; margin-top: 1.25rem;
}
.options-panel h3 { font-size: .92rem; font-weight: 700; margin-bottom: 1.1rem; color: var(--muted2); }
.opt-row { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.opt-group { flex: 1; min-width: 160px; }
.opt-group label { display: block; font-size: .8rem; font-weight: 600; color: var(--muted); margin-bottom: .4rem; }
.opt-group input[type="text"],
.opt-group input[type="number"],
.opt-group input[type="password"],
.opt-group input[type="email"],
.opt-group select,
.opt-group textarea {
  width: 100%; background: var(--bg3); border: 1px solid var(--border);
  border-radius: 7px; color: var(--text); padding: .55rem .85rem; font-size: .88rem;
}
.opt-group input:focus, .opt-group select:focus, .opt-group textarea:focus {
  outline: none; border-color: var(--accent);
}
.opt-group textarea { resize: vertical; min-height: 70px; }
.quality-slider { width: 100%; accent-color: var(--accent); }
.slider-labels { display: flex; justify-content: space-between; font-size: .72rem; color: var(--muted); margin-top: .25rem; }

/* Level cards (compress quality selector) */
.level-cards { display: flex; gap: .75rem; flex-wrap: wrap; }
.level-card {
  flex: 1; min-width: 90px; background: var(--bg3); border: 2px solid var(--border);
  border-radius: 8px; padding: .75rem .5rem; text-align: center; cursor: pointer;
  transition: all var(--tr);
}
.level-card:hover, .level-card.active { border-color: var(--accent); background: rgba(108,99,255,.08); }
.level-card .lc-icon { font-size: 1.4rem; margin-bottom: .3rem; display: block; }
.level-card .lc-label { font-size: .8rem; font-weight: 700; }
.level-card .lc-desc { font-size: .7rem; color: var(--muted); margin-top: .15rem; }

/* Color picker row */
.color-row { display: flex; gap: .5rem; align-items: center; }
.color-swatch {
  width: 28px; height: 28px; border-radius: 6px; cursor: pointer;
  border: 2px solid transparent; transition: border-color var(--tr);
}
.color-swatch.active { border-color: var(--accent); }
.color-input-wrap { position: relative; }
.color-input-wrap input[type="color"] {
  width: 28px; height: 28px; padding: 0; border: none;
  background: none; cursor: pointer; border-radius: 6px;
}

/* Toggle switch */
.toggle-row { display: flex; align-items: center; gap: .75rem; }
.toggle { display: flex; align-items: center; gap: .5rem; cursor: pointer; font-size: .88rem; }
.toggle input[type="checkbox"] { display: none; }
.toggle-track {
  width: 38px; height: 20px; background: var(--bg4); border-radius: 20px;
  position: relative; transition: background var(--tr);
}
.toggle input:checked + .toggle-track { background: var(--accent); }
.toggle-track::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px; background: #fff; border-radius: 50%;
  transition: transform var(--tr);
}
.toggle input:checked + .toggle-track::after { transform: translateX(18px); }

/* ── Action Bar ──────────────────────────────────────────────────── */
.action-bar {
  margin-top: 1.5rem; display: flex; gap: 1rem;
  align-items: center; justify-content: center; flex-wrap: wrap;
}
.process-btn {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--accent); color: #fff; padding: .8rem 2.5rem;
  border-radius: 10px; font-size: 1rem; font-weight: 700;
  border: none; cursor: pointer; transition: all var(--tr);
  box-shadow: 0 4px 20px rgba(108,99,255,.35);
}
.process-btn:hover:not(:disabled) { background: var(--accent2); transform: translateY(-1px); box-shadow: 0 6px 24px rgba(108,99,255,.45); }
.process-btn:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.reset-btn {
  background: none; border: 1px solid var(--border2); color: var(--muted2);
  padding: .8rem 1.5rem; border-radius: 10px; font-size: .9rem; font-weight: 600;
  cursor: pointer; transition: all var(--tr);
}
.reset-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Progress ────────────────────────────────────────────────────── */
.progress-area {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 2rem; margin-top: 1.25rem; text-align: center;
}
.progress-title { font-size: 1rem; font-weight: 700; margin-bottom: .5rem; }
.progress-msg { font-size: .85rem; color: var(--muted); margin-bottom: 1rem; }
.progress-track {
  height: 6px; background: var(--bg4); border-radius: 3px; overflow: hidden; margin-bottom: .5rem;
}
.progress-fill {
  height: 100%; background: linear-gradient(90deg, var(--accent), #a78bfa);
  border-radius: 3px; transition: width .3s ease; width: 0%;
}
.progress-pct { font-size: .78rem; color: var(--muted); }

/* ── Result Area ─────────────────────────────────────────────────── */
.result-area {
  background: var(--success-bg); border: 1px solid rgba(5,150,105,.2);
  border-radius: var(--radius); padding: 2rem; margin-top: 1.25rem; text-align: center;
}
[data-theme="dark"] .result-area { border-color: rgba(67,232,160,.2); }
.result-icon { font-size: 2.5rem; margin-bottom: .75rem; display: block; }
.result-title { font-size: 1.1rem; font-weight: 800; margin-bottom: .25rem; color: var(--success); }
.result-meta { font-size: .85rem; color: var(--muted); margin-bottom: 1.5rem; }
.download-btn {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--success); color: #fff; padding: .8rem 2rem;
  border-radius: 10px; font-size: .95rem; font-weight: 700;
  border: none; cursor: pointer; transition: all var(--tr);
  box-shadow: 0 4px 16px rgba(5,150,105,.3);
}
[data-theme="dark"] .download-btn { color: #000; box-shadow: 0 4px 20px rgba(67,232,160,.3); }
.download-btn:hover { transform: translateY(-1px); filter: brightness(1.08); }
.result-actions { display: flex; gap: .75rem; align-items: center; justify-content: center; flex-wrap: wrap; margin-top: .75rem; }
.another-btn {
  background: none; border: 1px solid var(--border2); color: var(--muted2);
  padding: .6rem 1.2rem; border-radius: 8px; font-size: .85rem; font-weight: 600;
  cursor: pointer; transition: all var(--tr);
}
.another-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── eSign Canvas Area ───────────────────────────────────────────── */
.sign-workspace {
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; margin-top: 1rem; background: var(--bg2);
}
.sign-toolbar {
  display: flex; gap: .5rem; align-items: center; flex-wrap: wrap;
  padding: .75rem 1rem; border-bottom: 1px solid var(--border);
}
.sign-tool-btn {
  background: var(--bg3); border: 1px solid var(--border); color: var(--text);
  padding: .3rem .75rem; border-radius: 6px; font-size: .8rem; font-weight: 600;
  cursor: pointer; transition: all var(--tr);
}
.sign-tool-btn.active, .sign-tool-btn:hover { background: rgba(108,99,255,.15); border-color: var(--accent); color: var(--accent); }
.sign-page-wrap {
  position: relative; overflow: auto; max-height: 600px;
  display: flex; align-items: flex-start; justify-content: center; padding: 1rem;
}
.sign-canvas-container { position: relative; display: inline-block; }
.sign-canvas-container canvas { display: block; }
.sig-overlay {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  cursor: crosshair;
}

/* ── Related Tools ───────────────────────────────────────────────── */
.related-tools {
  max-width: 1100px; margin: 0 auto; padding: 0 1.5rem 4rem;
}
.related-tools h2 { font-size: 1.3rem; font-weight: 800; margin-bottom: 1.25rem; }
.related-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1rem;
}
.related-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 10px;
  padding: 1rem; display: flex; align-items: center; gap: .75rem;
  transition: all var(--tr); text-decoration: none; color: var(--text);
}
.related-card:hover { border-color: var(--accent); transform: translateY(-2px); background: rgba(108,99,255,.04); }
.related-card .rc-icon {
  width: 38px; height: 38px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0;
}
.related-card .rc-name { font-size: .85rem; font-weight: 700; }

/* ── Info Strip ──────────────────────────────────────────────────── */
.info-strip {
  display: flex; gap: 1rem; margin-top: 1rem; flex-wrap: wrap;
}
.info-badge {
  display: flex; align-items: center; gap: .4rem; font-size: .78rem; color: var(--muted);
}
.info-badge span { color: var(--success); font-weight: 700; }

/* ── Tabs ────────────────────────────────────────────────────────── */
.tab-bar {
  display: flex; gap: .25rem; background: var(--bg3); border-radius: 8px;
  padding: .25rem; margin-bottom: 1.25rem;
}
.tab-btn {
  flex: 1; padding: .5rem; border-radius: 6px; border: none; background: none;
  color: var(--muted); font-size: .85rem; font-weight: 600; cursor: pointer;
  transition: all var(--tr); text-align: center;
}
.tab-btn.active { background: var(--accent); color: #fff; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Page Range Input (Split) ────────────────────────────────────── */
.range-chips { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .5rem; }
.range-chip {
  background: rgba(108,99,255,.15); color: var(--accent); border: 1px solid rgba(108,99,255,.3);
  border-radius: 20px; padding: .2rem .65rem; font-size: .78rem; font-weight: 600;
  display: flex; align-items: center; gap: .35rem;
}
.range-chip button { background: none; border: none; color: inherit; cursor: pointer; padding: 0; font-size: .85rem; line-height: 1; }

/* ── Signature Pad ───────────────────────────────────────────────── */
.sig-pad-wrap {
  border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
  background: rgba(255,255,255,.03); position: relative;
}
.sig-pad { display: block; cursor: crosshair; width: 100%; }
.sig-pad-actions { display: flex; gap: .5rem; padding: .5rem; border-top: 1px solid var(--border); }

/* ── OCR Output ──────────────────────────────────────────────────── */
.ocr-output {
  background: var(--bg3); border: 1px solid var(--border); border-radius: 8px;
  padding: 1rem; font-family: monospace; font-size: .82rem; line-height: 1.65;
  max-height: 320px; overflow-y: auto; white-space: pre-wrap; color: var(--text);
}

/* ── Utilities ───────────────────────────────────────────────────── */
.hidden { display: none !important; }
.mt-1 { margin-top: .5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; }
.text-center { text-align: center; }
.text-muted { color: var(--muted); font-size: .85rem; }
.divider { border: none; border-top: 1px solid var(--border); margin: 1.25rem 0; }
.badge-pill {
  display: inline-block; padding: .15rem .55rem; border-radius: 20px;
  font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
}
.badge-free { background: rgba(67,232,160,.12); color: var(--success); }
.badge-pro { background: rgba(245,197,66,.12); color: var(--warn); }

/* ── Toast ───────────────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 9999;
  background: var(--bg3); border: 1px solid var(--border);
  padding: .8rem 1.25rem; border-radius: 10px; font-size: .88rem;
  opacity: 0; transform: translateY(8px); transition: all .28s;
  max-width: 340px; box-shadow: 0 8px 32px rgba(0,0,0,.4);
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast-success { border-color: rgba(67,232,160,.4); }
.toast-error { border-color: rgba(255,77,109,.4); }
.toast-info { border-color: rgba(108,99,255,.4); }

/* ── PDF Preview Panel ───────────────────────────────────────────── */
.tb-preview-wrap {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; margin-top: 1.25rem;
}
.tb-preview-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .75rem 1rem; border-bottom: 1px solid var(--border);
  background: var(--bg3); flex-wrap: wrap; gap: .5rem;
}
.tb-preview-title {
  display: flex; align-items: center; gap: .5rem;
  font-size: .85rem; font-weight: 600; color: var(--text);
  min-width: 0; overflow: hidden;
}
.tb-preview-title svg { flex-shrink: 0; color: var(--accent); }
.tb-preview-title strong { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 260px; }
.tb-preview-size { color: var(--muted); font-size: .78rem; font-weight: 400; flex-shrink: 0; }
.tb-preview-toggle {
  background: none; border: 1px solid var(--border2); color: var(--muted);
  border-radius: 6px; padding: .25rem .75rem; font-size: .78rem; font-weight: 600;
  cursor: pointer; transition: all .2s; flex-shrink: 0;
}
.tb-preview-toggle:hover { border-color: var(--accent); color: var(--accent); }
.tb-preview-frame-wrap { position: relative; width: 100%; }
.tb-preview-frame-wrap.collapsed { display: none; }
.tb-preview-frame {
  display: block; width: 100%; height: 520px; border: none;
  background: #525659;
}
@media (max-width: 600px) { .tb-preview-frame { height: 360px; } }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .tool-workspace { padding: 1.5rem 1rem 3rem; }
  .opt-row { flex-direction: column; }
  .level-cards { flex-direction: column; }
  .related-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}