.tool-tabs {
  display: none;
  gap: 4px;
  background: var(--bg);
  border: var(--hairline);
  border-radius: var(--r-md);
  padding: 6px;
  margin: 0 0 24px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tool-tabs::-webkit-scrollbar { display: none; }
.tool-tabs:has(.nav-group[open]) { overflow: visible; }
.tool-tab {
  position: relative;
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  border: 0;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 13px;
  transition: color var(--ease), background var(--ease);
}
.tool-tab .icon { width: 15px; height: 15px; }
.tool-tab:hover { color: var(--ink); background: var(--surface); }
.tool-tab.is-active { color: var(--accent-ink); background: var(--surface); box-shadow: var(--shadow-sm); }
.tool-tabs .nav-group { position: relative; }
.tool-tabs .nav-group > summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  border: 0;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 13px;
  transition: color var(--ease), background var(--ease);
}
.tool-tabs .nav-group > summary:hover { color: var(--ink); background: var(--surface); }
.tool-tabs .nav-group[open] > summary { color: var(--ink); background: var(--surface); }
.tool-tabs .nav-group.has-active > summary { color: var(--accent-ink); background: var(--surface); box-shadow: var(--shadow-sm); }
.tool-tabs .nav-dropdown { top: calc(100% + 4px); min-width: 210px; }

.tool-panel { display: grid; gap: 14px; }
.tool-panel label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
}
.tool-panel textarea, .tool-panel input, .tool-panel select {
  width: 100%;
  border: var(--hairline-strong);
  border-radius: 10px;
  background: var(--bg);
  color: var(--ink);
  padding: 12px 14px;
  min-height: 46px;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.tool-panel textarea:focus, .tool-panel input:focus, .tool-panel select:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-tint);
}
.tool-panel textarea:focus-visible, .tool-panel input:focus-visible, .tool-panel select:focus-visible, .preview-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tool-panel textarea {
  resize: vertical;
  line-height: 1.55;
  font-family: var(--mono);
  font-size: 13px;
}
.tool-panel input { font-family: var(--mono); font-size: 13px; }
.tool-panel input[type="file"] {
  cursor: pointer;
  padding: 10px 12px;
  color: var(--ink-soft);
}
.tool-panel input[type="file"]::file-selector-button {
  font: 600 13px var(--sans);
  border: 0;
  background: var(--accent-tint);
  color: var(--accent-ink);
  border-radius: var(--r-sm);
  padding: 9px 15px;
  margin-right: 12px;
  cursor: pointer;
  transition: background var(--ease);
}
.tool-panel input[type="file"]::file-selector-button:hover { background: var(--accent); color: #fff; }
:root[data-theme="dark"] .tool-panel input[type="file"]::file-selector-button:hover { color: #0b2350; }

/* Upload area on the tool pages — same tall, centered treatment as the home
   drop zone. The input stays functional but visually hidden; the label
   activates it. */
.file-drop {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 300px;
  border: 2px dashed var(--line-strong);
  border-radius: var(--r-md);
  background: var(--surface-elevated);
  padding: 36px 20px;
  cursor: pointer;
  outline: none;
  text-align: center;
  transition: border-color var(--ease), background-color var(--ease);
}
.file-drop:hover, .file-drop:focus-visible, .file-drop.is-dragging {
  border-color: var(--accent);
  background: var(--accent-tint);
}
.file-drop-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-tint);
  color: var(--accent-ink);
  flex: 0 0 auto;
}
.file-drop:hover .file-drop-icon, .file-drop:focus-visible .file-drop-icon, .file-drop.is-dragging .file-drop-icon {
  background: var(--accent);
  color: #fff;
}
:root[data-theme="dark"] .file-drop:hover .file-drop-icon,
:root[data-theme="dark"] .file-drop:focus-visible .file-drop-icon,
:root[data-theme="dark"] .file-drop.is-dragging .file-drop-icon { color: #0b2350; }
.file-drop-icon .icon { width: 18px; height: 18px; }
.file-drop-text { display: flex; flex-direction: column; align-items: center; gap: 1px; min-width: 0; }
.file-drop-text strong { font-size: 13.5px; font-weight: 650; }
.file-drop-text span { color: var(--muted); font-size: 12.5px; }
.file-drop-name { font-family: var(--mono); font-size: 12px; color: var(--accent-ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-drop-name:empty { display: none; }
.file-drop input { position: absolute; inline-size: 1px; block-size: 1px; opacity: 0; pointer-events: none; }
.tool-panel .primary-button, .tool-panel .secondary-button { margin-top: 4px; }
.image-options { display: grid; gap: 12px; border: var(--hairline); border-radius: var(--r-md); background: var(--bg); padding: 14px 16px; }
.image-width-label { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; font-weight: 600; color: var(--ink-soft); }
.image-width-label select { width: auto; min-height: 42px; background: var(--surface); }
.faq-list { display: grid; gap: 10px; }
.faq-list details { border: var(--hairline); border-radius: var(--r-md); background: var(--bg); overflow: hidden; }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; list-style: none; cursor: pointer; padding: 15px 18px; font-size: 14.5px; font-weight: 650; letter-spacing: -0.01em; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--accent); font-size: 20px; font-weight: 400; line-height: 1; flex: 0 0 auto; }
.faq-list details[open] summary::after { content: "–"; }
.faq-list details[open] summary { border-bottom: var(--hairline); }
.faq-answer { padding: 14px 18px 18px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.faq-answer p { margin: 0 0 8px; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-answer a { color: var(--accent-ink); font-weight: 650; }
.faq-answer a:hover { text-decoration: underline; text-underline-offset: 3px; }
.faq-answer code { font-family: var(--mono); font-size: 12.5px; background: var(--surface-soft); border: var(--hairline); border-radius: 6px; padding: 1px 6px; }
.or-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin: 2px 0 -2px;
}
.or-divider::before, .or-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
.check-row { display: flex; align-items: center; gap: 8px; color: var(--muted); font-weight: 550 !important; font-family: var(--sans) !important; font-size: 13px !important; letter-spacing: 0 !important; }
.check-row input { width: auto; accent-color: var(--accent); }
.tool-note { color: var(--muted); font-size: 12px; margin: 2px 0 0; }
.pdf-tool-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.pdf-tool-heading span { color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: 0.02em; }
.inline-error { color: var(--danger); font-size: 13px; font-weight: 650; margin: -3px 0 0; }
.pdf-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  border: 0;
  margin: 0;
  padding: 0;
}
.pdf-actions legend { font-size: 13px; font-weight: 600; color: var(--ink-soft); margin-bottom: 10px; padding: 0; }
.pdf-action {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  border: var(--hairline);
  border-radius: var(--r-md);
  background: var(--bg);
  cursor: pointer;
  padding: 13px 14px;
  transition: border-color var(--ease), background var(--ease);
}
.pdf-action:hover { border-color: var(--line-strong); }
.pdf-action:has(input:checked) { border-color: var(--accent); background: var(--accent-tint); }
.pdf-action:has(input:disabled) { cursor: not-allowed; opacity: .55; }
.pdf-action:has(input:disabled):hover { border-color: var(--line); }
.pdf-action input { accent-color: var(--accent); margin: 3px 0 0; width: auto; }
.pdf-action span { display: grid; gap: 2px; }
.pdf-action strong { font-size: 13.5px; font-weight: 650; }
.pdf-action small { color: var(--muted); font-size: 12px; font-weight: 500; }
.tool-panel #pdf-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 14px;
  padding: 18px;
  border: var(--hairline);
  border-radius: var(--r-md);
  background: var(--bg);
}
.tool-panel #pdf-options label:nth-of-type(3),
.tool-panel #pdf-options input#pdf-watermark {
  grid-column: 1 / -1;
}
.tool-panel #pdf-options input,
.tool-panel #pdf-options select,
.tool-panel #pdf-options textarea { background: var(--surface); }
.tool-panel #pdf-options > div { display: grid; gap: 6px; }
.tool-panel #pdf-options > .pdf-options-group { grid-column: 1 / -1; gap: 8px; }
.tool-panel #pdf-options > .pdf-options-group h2 { margin: 0; font-size: 14px; }
.tool-panel #pdf-options > .pdf-options-group .pdf-actions { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 520px) {
  .tool-panel #pdf-options > .pdf-options-group .pdf-actions { grid-template-columns: 1fr; }
}
.pdf-preview { display: grid; gap: 10px; padding: 16px; border: var(--hairline); border-radius: var(--r-md); background: var(--bg); }
.pdf-preview-heading, .pdf-preview-controls { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.pdf-preview h2 { margin: 0; font-size: 15px; }
.pdf-preview .tool-note { margin: 3px 0 0; }
.pdf-preview-stage { position: relative; display: grid; justify-content: start; overflow: hidden; border: var(--hairline); background: white; }
.pdf-preview canvas { display: block; max-width: 100%; height: auto; background: white; }
.pdf-preview-text-layer, .pdf-preview-annotation-layer { position: absolute; inset: 0; overflow: hidden; }
.pdf-preview-text-layer > div, .pdf-preview-annotation-layer > div { position: absolute; inset: 0; }
.pdf-preview-text-layer { color: transparent; line-height: 1; text-size-adjust: none; transform-origin: 0 0; }
.pdf-preview-text-layer :is(span, br) { position: absolute; color: transparent; cursor: text; font-size: calc(var(--total-scale-factor) * var(--font-height)); transform: rotate(var(--rotate, 0deg)) scaleX(var(--scale-x, 1)); transform-origin: 0 0; white-space: pre; }
.pdf-preview-text-layer ::selection { background: color-mix(in srgb, var(--accent) 45%, transparent); }
.pdf-preview-annotation-layer { z-index: 1; }
.pdf-preview-annotation-layer :is(section, .linkAnnotation) { position: absolute; }
.pdf-preview-annotation-layer :is(section, .linkAnnotation) a { position: absolute; inset: 0; }
.preview-button { min-height: 36px; border: var(--hairline-strong); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); padding: 6px 12px; font: 600 11.5px var(--mono); cursor: pointer; transition: background var(--ease); }
.preview-button:hover:not(:disabled) { background: var(--surface-soft); }
.preview-button:disabled { cursor: not-allowed; opacity: .45; }
.preview-page { min-width: 58px; color: var(--muted); font: 600 11px var(--mono); text-align: center; }
.preview-pending { display: grid; gap: 3px; padding: 10px; border-left: 3px solid var(--line); background: var(--surface); color: var(--muted); font-size: 12px; }
.preview-pending strong { color: var(--ink); font: 600 11px var(--mono); letter-spacing: .02em; text-transform: uppercase; }
.preview-pending ul { display: grid; gap: 4px; padding: 0; margin: 0; list-style: none; }
.preview-pending li::before { content: "[pending] "; color: var(--accent-ink); font-family: var(--mono); }
.preview-pending p { margin: 0; }
.preview-watermark, .preview-stamp { position: absolute; z-index: 1; color: var(--accent-ink); pointer-events: none; }
.preview-watermark { top: 46%; left: 50%; border: 1px solid currentColor; padding: 4px 8px; font: 700 13px var(--mono); letter-spacing: .08em; opacity: .72; transform: translate(-50%, -50%) rotate(-28deg); }
.preview-stamp { right: 8%; bottom: 5%; font: 700 10px var(--mono); }
.preview-stamp[data-position="bottom-left"] { right: auto; left: 8%; }
.preview-stamp[data-position="top-right"] { top: 5%; bottom: auto; }
.preview-stamp[data-position="top-left"] { top: 5%; right: auto; bottom: auto; left: 8%; }
.preview-stamp[data-position="center"] { top: 50%; right: auto; bottom: auto; left: 50%; transform: translate(-50%, -50%); }

@media (max-width: 680px) {
  /* The header nav duplicates this switcher on larger screens; keep it only for mobile. */
  .tool-tabs { display: flex; }
}

@media (max-width: 520px) {
  .tool-tab { padding: 9px 10px; font-size: 11.5px; }
  .tool-tabs .nav-group > summary { padding: 9px 10px; font-size: 11.5px; }
  :root[data-theme="hacker"] .tool-tab,
  :root[data-theme="hacker"] .tool-tabs .nav-group > summary { font-size: 15.5px; }
   .tool-panel #pdf-options, .pdf-actions { grid-template-columns: 1fr; }
   .pdf-tool-heading { align-items: flex-start; flex-direction: column; gap: 2px; }
   .pdf-preview-heading { align-items: flex-start; flex-direction: column; }
   .pdf-preview-controls { width: 100%; justify-content: flex-start; }
}
/* Auth & account pages */
.auth-card { max-width: 520px; }
.auth-card .tool-panel { gap: 8px; }
.auth-card .tool-panel label { margin-top: 6px; }
.form-error { margin: 4px 0 0; color: var(--danger); font-size: 13px; }
.auth-alt { margin: 16px 0 0; color: var(--muted); font-size: 13px; }
.auth-alt code { font-family: var(--mono); font-size: 12px; }
.account-summary { margin: 0 0 16px; display: grid; gap: 0; border: var(--hairline); border-radius: var(--r-md); background: var(--bg); overflow: hidden; }
.account-row { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding: 12px 16px; }
.account-row + .account-row { border-top: 1px solid var(--line); }
.account-row dt { color: var(--muted); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.account-row dd { margin: 0; }
.account-value { font-family: var(--mono); font-size: 13px; }
.tier-badge { display: inline-block; padding: 3px 11px; border: 0; border-radius: 999px; background: var(--surface-soft); color: var(--ink-soft); font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.tier-badge-pro { color: var(--accent-ink); background: var(--accent-tint); }
.account-actions { display: grid; gap: 8px; margin-top: 12px; }
.account-subheading { margin: 4px 0 0; font-size: 1rem; font-weight: 650; letter-spacing: -0.01em; }
.account-actions .tool-panel { gap: 10px; }
.form-status { margin: 4px 0 0; font-size: 13px; font-weight: 600; color: var(--success); }
.form-status.is-error { color: var(--danger); }
.danger-zone { border: var(--hairline); border-radius: var(--r-md); background: var(--bg); padding: 16px; }
.danger-outline-button {
  border: 1.5px solid var(--danger);
  background: transparent;
  color: var(--danger);
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  padding: 12px;
  min-height: 48px;
  border-radius: 10px;
  transition: background var(--ease);
}
.danger-outline-button:hover { background: var(--danger-tint); }
.danger-button {
  width: 100%;
  border: 1px solid var(--danger);
  background: var(--danger);
  color: #fff;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  padding: 12px;
  min-height: 48px;
  border-radius: 10px;
  transition: filter var(--ease);
}
.danger-button:hover { filter: brightness(0.92); }