/* Filebench — local-first file tools
   Identity: dark instrument chrome over a light working canvas, the way a
   photo or PDF editor puts its toolbars in shadow and its document in light. */

:root {
  /* Light theme — cool paper, biased very slightly blue toward the accent */
  --ground:      #eef0f2;
  --surface:     #ffffff;
  --surface-sunk:#f6f7f9;
  --chrome:      #14171c;   /* dark rail / header, present in BOTH themes */
  --chrome-ink:  #e9ecf1;
  --chrome-mute: #939ba7;
  --chrome-line: #262b33;
  --ink:         #14171c;
  --ink-mute:    #59626e;
  --ink-faint:   #8c95a1;
  --line:        #d9dee4;
  --line-soft:   #e8ebef;
  --accent:      #1f4fd8;
  --accent-ink:  #ffffff;
  --accent-soft: #e6ecfd;
  --signal:      #b8430d;   /* savings, warnings, destructive page ops */
  --signal-soft: #fbeae2;
  --good:        #0d6f47;
  --good-soft:   #e2f2ea;
  --shadow:      0 1px 2px rgba(20, 23, 28, .06), 0 8px 24px -12px rgba(20, 23, 28, .18);
  --shadow-lift: 0 2px 4px rgba(20, 23, 28, .08), 0 18px 40px -18px rgba(20, 23, 28, .28);

  --grid: 8px;
  --radius: 6px;
  --radius-lg: 10px;
  --maxw: 1180px;
  --readw: 66ch;

  --font-ui: "Archivo", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-data: "IBM Plex Mono", ui-monospace, SFMono-Regular, "Cascadia Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground:      #0d1015;
    --surface:     #161a20;
    --surface-sunk:#11151a;
    --chrome:      #090b0e;
    --chrome-ink:  #e9ecf1;
    --chrome-mute: #8a929e;
    --chrome-line: #1d222a;
    --ink:         #e7eaef;
    --ink-mute:    #98a1ad;
    --ink-faint:   #6d7683;
    --line:        #272d36;
    --line-soft:   #1e242c;
    --accent:      #7ba0ff;
    --accent-ink:  #0b1120;
    --accent-soft: #1a2440;
    --signal:      #f0904f;
    --signal-soft: #2e1c11;
    --good:        #4bbd8a;
    --good-soft:   #10261d;
    --shadow:      0 1px 2px rgba(0,0,0,.5), 0 8px 24px -12px rgba(0,0,0,.7);
    --shadow-lift: 0 2px 4px rgba(0,0,0,.55), 0 18px 40px -18px rgba(0,0,0,.8);
  }
}

:root[data-theme="dark"] {
  --ground:      #0d1015;
  --surface:     #161a20;
  --surface-sunk:#11151a;
  --chrome:      #090b0e;
  --chrome-ink:  #e9ecf1;
  --chrome-mute: #8a929e;
  --chrome-line: #1d222a;
  --ink:         #e7eaef;
  --ink-mute:    #98a1ad;
  --ink-faint:   #6d7683;
  --line:        #272d36;
  --line-soft:   #1e242c;
  --accent:      #7ba0ff;
  --accent-ink:  #0b1120;
  --accent-soft: #1a2440;
  --signal:      #f0904f;
  --signal-soft: #2e1c11;
  --good:        #4bbd8a;
  --good-soft:   #10261d;
  --shadow:      0 1px 2px rgba(0,0,0,.5), 0 8px 24px -12px rgba(0,0,0,.7);
  --shadow-lift: 0 2px 4px rgba(0,0,0,.55), 0 18px 40px -18px rgba(0,0,0,.8);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
  font-variation-settings: "wdth" 100;
  -webkit-font-smoothing: antialiased;
}

img, canvas, svg { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

h1, h2, h3 { text-wrap: balance; margin: 0; line-height: 1.15; letter-spacing: -0.015em; }
p { margin: 0; }

.mono { font-family: var(--font-data); font-variant-numeric: tabular-nums; }

/* ---------- Chrome: header ---------- */

.masthead {
  background: var(--chrome);
  color: var(--chrome-ink);
  border-bottom: 1px solid var(--chrome-line);
}
.masthead__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 0 20px;
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  color: var(--chrome-ink);
  text-decoration: none;
  font-variation-settings: "wdth" 112;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  padding: 14px 0;
}
.wordmark__mark {
  width: 19px; height: 19px;
  align-self: center;
  flex: none;
}
.masthead nav { margin-left: auto; display: flex; gap: 4px; flex-wrap: wrap; }
.masthead nav a {
  color: var(--chrome-mute);
  text-decoration: none;
  font-size: 13.5px;
  padding: 6px 10px;
  border-radius: var(--radius);
}
.masthead nav a:hover { color: var(--chrome-ink); background: rgba(255,255,255,.06); }
.masthead nav a[aria-current="page"] { color: var(--chrome-ink); background: rgba(255,255,255,.09); }

.privacy-strip {
  background: var(--chrome);
  border-bottom: 1px solid var(--chrome-line);
  color: var(--chrome-mute);
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.privacy-strip__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 7px 20px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.privacy-strip__dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--good);
  flex: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--good) 22%, transparent);
}

/* ---------- Layout ---------- */

.wrap { max-width: var(--maxw); margin-inline: auto; padding: 0 20px; }

main { display: block; padding-bottom: 72px; }

.tool-layout {
  display: grid;
  grid-template-columns: 216px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding-top: 28px;
}
@media (max-width: 900px) {
  .tool-layout { grid-template-columns: minmax(0, 1fr); gap: 20px; }
}

/* ---------- Tool rail ---------- */

.rail {
  background: var(--chrome);
  border-radius: var(--radius-lg);
  padding: 8px;
  position: sticky;
  top: 16px;
}
@media (max-width: 900px) { .rail { position: static; } }

.rail__label {
  font-family: var(--font-data);
  font-size: 10.5px;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--chrome-mute);
  padding: 8px 10px 6px;
}
.rail__group { display: flex; flex-direction: column; gap: 1px; }
.rail__group + .rail__label { margin-top: 10px; border-top: 1px solid var(--chrome-line); padding-top: 14px; }

.rail a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-radius: var(--radius);
  color: var(--chrome-mute);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.3;
}
.rail a:hover { background: rgba(255,255,255,.06); color: var(--chrome-ink); }
.rail a[aria-current="page"] {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}
.rail a[aria-current="page"] .rail__glyph { opacity: 1; }
.rail__glyph { flex: none; width: 16px; height: 16px; opacity: .75; }

/* ---------- Tool panel ---------- */

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel__head { padding: 22px 24px 18px; border-bottom: 1px solid var(--line-soft); }
.panel__eyebrow {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 8px;
}
.panel__head h1 {
  font-size: clamp(25px, 3.4vw, 34px);
  font-weight: 700;
  font-variation-settings: "wdth" 108;
}
.panel__head p { color: var(--ink-mute); margin-top: 9px; max-width: 58ch; font-size: 15.5px; }

.panel__body { padding: 20px 24px 24px; display: flex; flex-direction: column; gap: 18px; }

/* ---------- Dropzone ---------- */

.drop {
  border: 2px dashed var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-sunk);
  padding: 34px 24px;
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: border-color .12s, background .12s;
}
.drop:hover, .drop:focus-visible { border-color: var(--accent); }
.drop.is-over {
  border-color: var(--accent);
  border-style: solid;
  background: var(--accent-soft);
}
.drop__icon { width: 30px; height: 30px; color: var(--ink-faint); }
.drop.is-over .drop__icon { color: var(--accent); }
.drop__title { font-weight: 600; font-size: 17px; }
.drop__title b { color: var(--accent); font-weight: 600; }
.drop__hint { font-family: var(--font-data); font-size: 12px; color: var(--ink-faint); letter-spacing: .01em; }
.drop input[type="file"] { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

/* ---------- Controls ---------- */

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px 18px;
  padding: 16px;
  background: var(--surface-sunk);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
}
.controls[hidden] { display: none; }

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field > label,
.field__label {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.field__row { display: flex; align-items: center; gap: 8px; }

select, input[type="text"], input[type="number"] {
  font: inherit;
  font-size: 14.5px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 7px 9px;
  width: 100%;
  min-width: 0;
}
input[type="number"], input[type="text"].mono { font-family: var(--font-data); font-variant-numeric: tabular-nums; }
select:hover, input:hover { border-color: var(--ink-faint); }

input[type="range"] { width: 100%; accent-color: var(--accent); }
input[type="color"] {
  width: 34px; height: 32px; padding: 2px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); cursor: pointer; flex: none;
}
.field__value {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--ink);
  min-width: 4ch;
  text-align: right;
}

.check { display: flex; align-items: center; gap: 8px; font-size: 14.5px; color: var(--ink); }
.check input { accent-color: var(--accent); width: 16px; height: 16px; }

/* ---------- Buttons ---------- */

.btn {
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font-ui);
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 9px 16px;
  cursor: pointer;
  background: var(--accent);
  color: var(--accent-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  line-height: 1.3;
}
.btn:hover { filter: brightness(1.08); }
.btn:disabled { opacity: .45; cursor: not-allowed; filter: none; }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn--ghost:hover { background: var(--surface-sunk); filter: none; border-color: var(--ink-faint); }
.btn--sm { padding: 5px 10px; font-size: 13px; font-weight: 500; }
.btn--danger { color: var(--signal); border-color: var(--line); background: transparent; }
.btn--danger:hover { background: var(--signal-soft); border-color: var(--signal); filter: none; }

.actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.actions__spacer { flex: 1 1 auto; }

/* ---------- File list ---------- */

.filelist { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.filelist:empty { display: none; }

.frow {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--line-soft);
}
.frow:last-child { border-bottom: 0; }
.frow__thumb {
  width: 34px; height: 34px;
  border-radius: 4px;
  background: var(--surface-sunk);
  border: 1px solid var(--line-soft);
  object-fit: cover;
  display: grid;
  place-items: center;
  font-family: var(--font-data);
  font-size: 9px;
  color: var(--ink-faint);
  overflow: hidden;
  flex: none;
}
.frow__name {
  min-width: 0;
  font-size: 14.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.frow__meta {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  color: var(--ink-mute);
  white-space: nowrap;
}
.frow__delta {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 500;
  padding: 2px 7px;
  border-radius: 20px;
  white-space: nowrap;
}
.frow__delta--good { color: var(--good); background: var(--good-soft); }
.frow__delta--worse { color: var(--signal); background: var(--signal-soft); }
.frow__delta--err { color: var(--signal); background: var(--signal-soft); }
.frow__x {
  border: 0; background: transparent; cursor: pointer;
  color: var(--ink-faint); font-size: 18px; line-height: 1;
  padding: 4px 6px; border-radius: 4px;
}
.frow__x:hover { color: var(--signal); background: var(--signal-soft); }

@media (max-width: 560px) {
  .frow { grid-template-columns: 34px minmax(0, 1fr) auto; row-gap: 4px; }
  .frow__delta { grid-column: 2 / -1; justify-self: start; }
}

/* Reorderable list (merge) */
.frow--drag { cursor: grab; }
.frow--drag:active { cursor: grabbing; }
.frow.is-dragging { opacity: .4; }
.frow__ord {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--ink-faint);
  width: 34px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

/* ---------- Status / progress ---------- */

.status {
  font-family: var(--font-data);
  font-size: 12.5px;
  color: var(--ink-mute);
  min-height: 1.5em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.status[data-state="error"] { color: var(--signal); }
.status[data-state="done"] { color: var(--good); }
.spinner {
  width: 12px; height: 12px; flex: none;
  border: 2px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .spinner { animation-duration: 2.4s; }
  * { scroll-behavior: auto !important; }
}

/* ---------- Page chips (PDF organize) ---------- */

.pagegrid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 14px;
  background: var(--surface-sunk);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  max-height: 260px;
  overflow-y: auto;
}
.pchip {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  min-width: 42px;
  height: 40px;
  padding: 0 8px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-mute);
  cursor: pointer;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  line-height: 1.1;
  gap: 1px;
}
.pchip:hover { border-color: var(--accent); }
.pchip[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 500;
}
.pchip__rot { font-size: 9px; opacity: .8; letter-spacing: .02em; }

/* ---------- Editorial content below the tool ---------- */

.prose { max-width: var(--readw); display: flex; flex-direction: column; gap: 16px; }
.prose h2 {
  font-size: 22px;
  font-weight: 700;
  font-variation-settings: "wdth" 106;
  margin-top: 14px;
}
.prose h3 { font-size: 16.5px; font-weight: 600; }
.prose p, .prose li { color: var(--ink-mute); font-size: 15.5px; }
.prose ol, .prose ul { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 8px; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose code {
  font-family: var(--font-data);
  font-size: .88em;
  background: var(--surface-sunk);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: 1px 5px;
}

.content-block { padding: 40px 24px 8px; }

.faq { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--line); max-width: var(--readw); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  padding: 14px 0;
  font-weight: 600;
  font-size: 15.5px;
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-data);
  color: var(--ink-faint);
  font-size: 18px;
  line-height: 1;
  flex: none;
}
.faq details[open] summary::after { content: "\2212"; }
.faq details > p { padding: 0 0 16px; color: var(--ink-mute); font-size: 15.5px; }

/* ---------- Home ---------- */

.hero { padding: 56px 0 40px; }
.hero__inner { max-width: 760px; }
.hero h1 {
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 700;
  font-variation-settings: "wdth" 96;
  letter-spacing: -0.028em;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p {
  margin-top: 18px;
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--ink-mute);
  max-width: 60ch;
  line-height: 1.55;
}
.hero__facts {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.fact {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 5px 12px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.fact::before {
  content: "";
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--good);
  flex: none;
}

.toolgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.toolcard {
  background: var(--surface);
  padding: 20px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-height: 148px;
}
.toolcard:hover { background: var(--surface-sunk); }
.toolcard__top { display: flex; align-items: center; gap: 10px; }
.toolcard__glyph { width: 18px; height: 18px; color: var(--accent); flex: none; }
.toolcard h3 { font-size: 16.5px; font-weight: 600; }
.toolcard p { font-size: 14.5px; color: var(--ink-mute); line-height: 1.5; }
.toolcard__fmt {
  margin-top: auto;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.section-head { padding: 46px 0 18px; display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.section-head h2 {
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-data);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.section-head p { font-size: 14.5px; color: var(--ink-faint); }

.why {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 26px;
  padding: 10px 0 8px;
}
.why__item { display: flex; flex-direction: column; gap: 7px; }
.why__item h3 { font-size: 16px; font-weight: 600; }
.why__item p { font-size: 14.5px; color: var(--ink-mute); }
.why__num {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--signal);
  letter-spacing: .06em;
}

/* comparison table */
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; min-width: 460px; background: var(--surface); }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line-soft); }
thead th {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
  background: var(--surface-sunk);
}
tbody tr:last-child td { border-bottom: 0; }
td.yes { color: var(--good); font-weight: 600; }
td.no  { color: var(--signal); }

/* ---------- Footer ---------- */

.foot {
  background: var(--chrome);
  color: var(--chrome-mute);
  border-top: 1px solid var(--chrome-line);
  padding: 34px 0 40px;
  margin-top: 40px;
}
.foot__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 26px;
}
.foot h4 {
  font-family: var(--font-data);
  font-size: 10.5px;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--chrome-mute);
  margin: 0 0 10px;
  font-weight: 500;
}
.foot ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 7px; }
.foot a { color: var(--chrome-ink); text-decoration: none; font-size: 14px; opacity: .82; }
.foot a:hover { opacity: 1; text-decoration: underline; }
.foot__note {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--chrome-line);
  font-size: 13px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.noscript {
  background: var(--signal-soft);
  color: var(--signal);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14.5px;
}

/* Utility classes — kept here rather than as inline style attributes so the
   Content-Security-Policy can forbid inline styles entirely. */
.page-title {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  font-variation-settings: "wdth" 106;
}
.prose--spaced { margin-top: 34px; }
.pagegrid__head {
  width: 100%;
  margin-bottom: 2px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ---------- Popular conversions ---------- */

.pairgrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  gap: 8px;
}
.pair {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .02em;
}
.pair:hover { border-color: var(--accent); color: var(--accent); }
.pair__arrow { color: var(--ink-faint); }
.pair:hover .pair__arrow { color: var(--accent); }