/* Conversion discovery: existing Fan Deck tokens, scoped to these surfaces. */
.guide-body a, .guide-languages a { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }
.popular-conversions { padding-top: clamp(48px, 7vw, 92px); }
.popular-conversions .section-head { max-width: 850px; }
.cases-carousel { position: relative; overflow: hidden; --cases-fade: clamp(32px, 4.5vw, 64px); }
.cases-carousel::before,
.cases-carousel::after {
  content: ""; position: absolute; top: 0; bottom: 0; z-index: 3;
  width: calc(var(--cases-fade) + 4px); pointer-events: none;
}
.cases-carousel::before { left: -4px; background: linear-gradient(to right, var(--bg), transparent); }
.cases-carousel::after { right: -4px; background: linear-gradient(to left, var(--bg), transparent); }
.conversion-cases {
  display: grid; grid-auto-flow: column;
  grid-auto-columns: calc((100% - 32px) / 3);
  gap: 16px;
  overflow-x: auto; overscroll-behavior-x: contain;
  touch-action: pan-x pan-y;
  scroll-behavior: auto; scrollbar-width: none;
  padding: 4px; margin: -4px;
}
.conversion-cases::-webkit-scrollbar { display: none; }
.conversion-cases:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 22px; }
.conversion-case {
  display: grid; grid-template-rows: auto 1fr; gap: 16px;
  padding: 30px; background: var(--raised); border: 1px solid var(--line);
  border-radius: 20px; color: var(--ink); text-decoration: none;
  box-shadow: 0 10px 28px -16px rgb(20 24 40 / .16);
  transition: border-color .18s, background .18s;
}
.conversion-case strong { display: flex; align-items: center; flex-wrap: wrap; gap: .28em; font-size: clamp(1.25rem, 2.3vw, 1.75rem); font-stretch: 108%; letter-spacing: -.025em; }
.cc-arrow { width: .82em; height: .82em; flex: none; color: var(--accent); transition: transform .2s var(--ease); }
.conversion-case p { color: var(--ink-2); font-size: .95rem; line-height: 1.5; }
.conversion-checker {
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--raised);
  box-shadow: 0 24px 48px -36px rgb(20 24 40 / .45);
  margin-bottom: 32px;
}
.conversion-checker h3 { font-size: 1.45rem; margin-bottom: 10px; }
.conversion-checker > p { color: var(--ink-2); margin-bottom: 26px; }
.conversion-fields { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 14px; align-items: end; }
.fmt-field { display: grid; gap: 8px; min-width: 0; }
.fmt-label { font: var(--label); letter-spacing: .01em; color: var(--ink-2); }
.fmt-combo { position: relative; }
.fmt-combo input {
  width: 100%; min-width: 0; height: 52px;
  padding: 0 44px 0 16px;
  border: 1px solid var(--line); border-radius: var(--btn-r);
  background: var(--surface); color: var(--ink);
  font: 650 1.02rem/1.2 var(--font); font-stretch: 106%; text-transform: uppercase; letter-spacing: .01em;
  transition: border-color .18s, background .18s, box-shadow .18s;
}
.fmt-combo input:hover { border-color: var(--ink-2); }
.fmt-combo input:focus { outline: none; border-color: var(--accent); background: var(--raised); box-shadow: 0 0 0 3px var(--sel); }
.fmt-chevron {
  position: absolute; top: 50%; right: 14px; width: 18px; height: 18px; margin-top: -9px;
  color: var(--ink-2); pointer-events: none;
  transition: transform .22s var(--ease), color .18s;
}
.fmt-combo.is-open .fmt-chevron { transform: rotate(180deg); color: var(--ink); }
.fmt-menu {
  position: absolute; z-index: 50; top: calc(100% + 8px); left: 0; right: 0;
  max-height: min(320px, 42vh); overflow: auto; overscroll-behavior: contain;
  padding: 6px;
  background: var(--raised); border: 1px solid var(--line); border-radius: var(--r-sm);
  box-shadow: 0 2px 6px rgb(20 24 40 / .06), 0 26px 48px -18px rgb(20 24 40 / .28);
  opacity: 0; visibility: hidden; transform: translateY(-6px) scale(.99); transform-origin: top center;
  transition: opacity .16s ease, transform .22s var(--ease), visibility .22s;
  scrollbar-width: thin;
}
.fmt-combo.is-open .fmt-menu { opacity: 1; visibility: visible; transform: none; }
.fmt-combo[data-drop="up"] .fmt-menu { top: auto; bottom: calc(100% + 8px); transform: translateY(6px) scale(.99); transform-origin: bottom center; }
.fmt-combo[data-drop="up"].is-open .fmt-menu { transform: none; }
.fmt-opt[hidden], .fmt-group[hidden], .fmt-none[hidden] { display: none; }
.fmt-group { display: flex; align-items: center; gap: 8px; padding: 10px 10px 5px; font: var(--label); color: var(--ink-2); }
.fmt-group:first-child { padding-top: 6px; }
.fmt-group::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--dot, var(--ink-2)); }
.fmt-group[data-fam="img"] { --dot: var(--fam-img); }
.fmt-group[data-fam="video"] { --dot: var(--fam-video); }
.fmt-group[data-fam="audio"] { --dot: var(--fam-audio); }
.fmt-group[data-fam="pdf"] { --dot: var(--fam-pdf); }
.fmt-group[data-fam="doc"] { --dot: var(--fam-doc); }
.fmt-group[data-fam="sheet"] { --dot: var(--fam-tool); }
.fmt-group[data-fam="arc"] { --dot: var(--fam-arc); }
.fmt-group[data-fam="sub"] { --dot: var(--fam-sub); }
.fmt-opt {
  display: block; padding: 9px 10px;
  border-radius: calc(var(--r-sm) - 4px);
  font: 600 .95rem var(--font); color: var(--ink);
  cursor: pointer;
  transition: background .12s, color .12s;
}
.fmt-opt:hover, .fmt-opt.is-active { background: var(--surface); }
.fmt-opt[aria-selected="true"] { color: var(--accent); font-weight: 700; }
.fmt-opt[aria-selected="true"]::after { content: "\2713"; float: right; }
.fmt-none { padding: 10px; font-size: .9rem; color: var(--ink-2); }
.checker-arrow {
  align-self: end; display: grid; place-items: center;
  width: 40px; height: 40px; margin-bottom: 6px;
  border: 1px solid var(--line); border-radius: 50%;
  background: var(--surface); color: var(--accent);
}
.checker-arrow svg { width: 18px; height: 18px; }
.conversion-outputs { display: grid; gap: 10px; margin-top: 24px; }
.conversion-outputs:empty { display: none; }
.check-out-label { font-size: .9rem; color: var(--ink-2); }
.check-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.check-chips button {
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--raised); color: var(--ink);
  font: 650 .88rem var(--font); padding: 8px 14px; cursor: pointer;
  transition: border-color .16s, color .16s, background .16s, transform .16s;
}
.check-chips button:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.check-chips button:active { transform: none; }
.check-chips button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.check-chips button.is-target { background: var(--accent); border-color: var(--accent); color: #fff; }
.check-chips button.is-target:hover { color: #fff; }
.check-note { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 14px; font-size: .95rem; color: var(--ink-2); }
.check-note:empty { display: none; }
.check-note[data-state="no"] { color: #b45309; }
.check-note a { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-weight: 650; text-decoration: none; }
.check-note a:hover { text-decoration: underline; text-underline-offset: 4px; }
.check-note a svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
@keyframes chip-in { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }
.conversion-outputs.is-fresh .check-chips button { animation: chip-in .28s var(--ease) both; animation-delay: calc(var(--i, 0) * 18ms); }
.format-boundaries { margin-top: 20px; font-size: .95rem; color: var(--ink-2); }
.formats .flist { line-height: 1.65; }
.guide-nav .brand img { width: 36px; height: 36px; }
.guide-nav .nav-inner { flex-wrap: wrap; }
.guide-languages { display: flex; gap: 14px; margin-left: auto; font-size: .9rem; }
.guide-languages [aria-current] { color: var(--ink); font-weight: 750; text-decoration: none; }
.guide-main { max-width: 960px; padding-top: clamp(36px, 6vw, 80px); padding-bottom: 64px; }
.guide-breadcrumb { color: var(--ink-2); font-size: .9rem; margin-bottom: 32px; }
.guide-hero h1 { font: 800 clamp(2.2rem, 5.8vw, 4.5rem)/1.06 var(--font); font-stretch: 112%; letter-spacing: -.025em; margin-bottom: 24px; }
.guide-hero > p { color: var(--ink-2); max-width: 66ch; font-size: 1.12rem; line-height: 1.6; }
.guide-hero .hero-cta { justify-content: flex-start; margin: 28px 0 16px; }
.guide-hero .download-note { margin-bottom: 32px; }
.guide-example { background: var(--raised); border: 1px solid var(--line); border-radius: 10px; padding: 24px; display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.guide-example code { font: 650 1.05rem var(--font); overflow-wrap: anywhere; }
.guide-example > span { color: var(--accent); }
.guide-hero .guide-filename-note { font-size: .85rem; margin-top: 12px; }
.guide-body { display: grid; gap: 44px; margin-top: 48px; line-height: 1.7; }
.guide-body h2 { font-size: 1.7rem; margin-bottom: 16px; }
.guide-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
.guide-body ol { list-style: decimal; padding-left: 24px; display: grid; gap: 16px; }
.guide-body li { padding-left: 8px; }
.guide-body kbd { font: 650 .9em var(--font); border: 1px solid var(--line); border-radius: 4px; padding: 2px 6px; background: var(--raised); }
.guide-limits { padding: 24px; background: var(--raised); border-left: 3px solid var(--accent); }
.guide-limits p + p { margin-top: 16px; }
.guide-body details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.guide-body summary { list-style: revert; cursor: pointer; font-weight: 700; }
.guide-body details p { margin-top: 12px; color: var(--ink-2); }
.guide-related { display: flex; gap: 12px 24px; flex-wrap: wrap; }
.guide-footer { display: flex; flex-wrap: wrap; gap: 16px 24px; border-top: 1px solid var(--line); padding-top: 32px; margin-top: 56px; font-size: .9rem; color: var(--ink-2); }
@media (max-width: 980px) {
  .conversion-cases { grid-auto-columns: calc((100% - 16px) / 2); }
}
@media (max-width: 760px) {
  .conversion-fields { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .checker-arrow { display: none; }
  .check-chips button { min-height: 40px; }
  .guide-nav .btn { display: none; }
}
@media (max-width: 440px) {
  .cases-carousel { --cases-fade: 28px; }
  .conversion-cases { grid-auto-columns: min(84%, 330px); }
  .conversion-case { gap: 12px; padding: 24px; }
  .conversion-fields { grid-template-columns: minmax(0, 1fr); }
  .guide-languages { gap: 10px; }
  .guide-nav .wordmark { font-size: 1.05rem; }
  .guide-nav .brand { gap: 6px; }
  .guide-nav .brand img { width: 28px; height: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  .conversion-case { transition: none; }
  .cc-arrow { transition: none; }
  .fmt-chevron, .fmt-menu { transition: none; }
  .conversion-outputs.is-fresh .check-chips button { animation: none; }
}