:root {
  --paper: #EEF0E8;
  --paper-2: #E2E6DA;
  --ink: #14233B;
  --ink-soft: #46556B;
  --magenta: #B0246B;
  --blue: #2F6FA8;
  --amber: #E8A800;
  --line: #C5CCBD;
  --ring-a: #DDE3D3; --ring-b: #B9C3B0; --disc-a: #FBFCF7; --disc-b: #E6EADF;
  --serif-stack: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
  --body-stack: "Atkinson Hyperlegible", system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0F1A2B; --paper-2: #17263D; --ink: #E8ECE2; --ink-soft: #9BA9BC;
    --magenta: #E0569A; --blue: #6FA8DC; --line: #2A3B55;
    --ring-a: #243650; --ring-b: #16233A; --disc-a: #1C2D47; --disc-b: #0F1A2B;
  }
}
:root[data-theme="dark"] {
  --paper: #0F1A2B; --paper-2: #17263D; --ink: #E8ECE2; --ink-soft: #9BA9BC;
  --magenta: #E0569A; --blue: #6FA8DC; --line: #2A3B55;
  --ring-a: #243650; --ring-b: #16233A; --disc-a: #1C2D47; --disc-b: #0F1A2B;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; color: var(--ink);
  background-color: var(--paper);
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px; background-position: -1px -1px; background-attachment: fixed;
  font: 17px/1.55 var(--body-stack);
  padding-bottom: env(safe-area-inset-bottom);
}
button, input { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--magenta); outline-offset: 2px; }

.bar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 10px max(16px, env(safe-area-inset-left)) 10px 16px;
  border-bottom: 2px solid var(--ink);
  position: sticky; top: 0; background: var(--paper); z-index: 5;
}
.brand { display: flex; align-items: center; gap: 8px; margin: 0; font: 700 28px/1 var(--serif-stack); letter-spacing: .01em; }
.brand svg { width: 28px; height: 28px; }
.tabs { display: flex; gap: 4px; flex: 1; overflow-x: auto; scrollbar-width: none; }
.tabs button {
  background: none; border: 0; padding: 8px 14px; cursor: pointer; white-space: nowrap;
  font: 600 19px/1 var(--serif-stack); color: var(--ink-soft); border-bottom: 3px solid transparent;
}
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--magenta); }
.lang { display: flex; border: 2px solid var(--ink); border-radius: 4px; overflow: hidden; }
.lang button { background: none; border: 0; padding: 6px 10px; cursor: pointer; font: 700 16px/1 var(--serif-stack); }
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }

main { max-width: 1120px; margin: 0 auto; padding: 24px 16px 48px; }
.view[hidden] { display: none; }
h2 { font: 700 clamp(30px, 5vw, 44px)/1.05 var(--serif-stack); margin: 0 0 12px; letter-spacing: .005em; }
.prose { max-width: 62ch; }
.prose p { margin: 0 0 .8em; }
.prose b { color: var(--magenta); }

/* Learn */
.learn-grid { display: grid; gap: 28px; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: start; }
.dial-wrap { position: sticky; top: 76px; }
#dial { width: 100%; max-width: 560px; display: block; margin: 0 auto; touch-action: none; user-select: none; -webkit-user-select: none; }
#dial .inner-disc { cursor: grab; }
#dial.dragging .inner-disc { cursor: grabbing; }
#dial text { font-family: var(--serif-stack); }
#dial .tick { stroke: var(--ink); }
#dial .inner-ink { fill: var(--blue); }
#dial .inner-tick { stroke: var(--blue); }
#dial .index { fill: var(--magenta); }
#dial .hint { fill: var(--ink-soft); font-size: 13px; font-weight: 500; }
.readout { display: flex; justify-content: center; align-items: end; gap: 12px; margin-top: 8px; }
.readout label { display: grid; gap: 2px; font-size: 14px; color: var(--ink-soft); }
.readout input { width: 110px; }
.readout .arrow { font: 700 28px/1.6 var(--serif-stack); }
input[type=number] {
  background: var(--paper-2); border: 2px solid var(--ink); border-radius: 4px; padding: 8px 10px;
  font: 600 22px/1.1 var(--serif-stack); width: 100%; min-height: 44px;
}
.steps { list-style: none; display: flex; gap: 6px; padding: 0; margin: 0 0 18px; }
.steps button { width: 34px; height: 34px; border-radius: 50%; border: 2px solid var(--ink); background: none; cursor: pointer; font: 700 16px/1 var(--serif-stack); }
.steps button[aria-current="step"] { background: var(--ink); color: var(--paper); }
.steps button.done { border-color: var(--magenta); color: var(--magenta); }
.steps button.done[aria-current="step"] { background: var(--magenta); color: var(--paper); }
.goal { margin: 14px 0; padding: 12px 14px; border-left: 5px solid var(--amber); background: var(--paper-2); font-weight: 700; }
.goal.ok { border-left-color: var(--magenta); }
.goal:empty { display: none; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.actions button { min-height: 44px; padding: 0 18px; border-radius: 4px; border: 2px solid var(--ink); cursor: pointer; font: 600 20px/1 var(--serif-stack); }
.actions .ghost { background: none; }
.actions .primary { background: var(--ink); color: var(--paper); margin-left: auto; }
.actions button:disabled { opacity: .35; cursor: default; }

/* Calculators */
.calc { display: grid; grid-template-columns: minmax(0, 420px) minmax(0, 1fr); gap: 40px; align-items: start; }
.inputs { display: grid; gap: 12px; }
.inputs label { display: grid; gap: 4px; font-size: 15px; color: var(--ink-soft); }
.result { display: grid; gap: 0; border-top: 2px solid var(--ink); }
.result .row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.result .row span:first-child { color: var(--ink-soft); }
.result .big { font: 700 clamp(40px, 7vw, 64px)/1 var(--serif-stack); }
.result .row.key .big { color: var(--magenta); }
.result .unit { font-size: 16px; color: var(--ink-soft); margin-left: 4px; }
.result .msg { padding: 16px 0; font-weight: 700; }
.result .msg.err { color: var(--magenta); }
.formula { margin-top: 18px; color: var(--ink-soft); font-size: 15px; max-width: 54ch; }

@media (max-width: 820px) {
  .learn-grid, .calc { grid-template-columns: 1fr; gap: 20px; }
  .dial-wrap { position: static; }
  .actions .primary { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* polish */
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; background: radial-gradient(ellipse at 30% 20%, transparent 40%, var(--paper) 100%); opacity: .85; }
.bar, main { position: relative; z-index: 1; }
.bar { background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(6px); box-shadow: 0 2px 0 var(--magenta); border-bottom-color: var(--ink); }
.theme { background: none; border: 2px solid var(--ink); border-radius: 4px; width: 36px; height: 32px; display: grid; place-items: center; cursor: pointer; }
#dial { filter: drop-shadow(0 14px 22px color-mix(in srgb, var(--ink) 28%, transparent)); }
.lesson { background: var(--paper); border: 2px solid var(--ink); border-radius: 6px; padding: 22px 22px 20px; box-shadow: 6px 6px 0 var(--magenta); }
.lesson h2 { margin-top: 0; }
.readout { background: var(--paper); border: 2px solid var(--ink); border-radius: 6px; padding: 12px 16px; max-width: 420px; margin: 14px auto 0; }
.readout input { background: var(--paper-2); }
.steps { gap: 4px; align-items: center; }
.steps li { display: flex; align-items: center; }
.steps li + li::before { content: ""; width: 10px; height: 2px; background: var(--line); margin-right: 4px; }
.goal { border-radius: 0 4px 4px 0; }
.goal.ok::before { content: ""; }
.actions button:not(:disabled):hover { transform: translateY(-1px); }
.actions .primary:hover { background: var(--magenta); border-color: var(--magenta); }
.inputs { background: var(--paper); border: 2px solid var(--ink); border-radius: 6px; padding: 22px; }
.result { border-top: 0; align-content: start; }
.result .row { background: var(--paper); border: 2px solid var(--ink); border-radius: 6px; padding: 12px 16px; margin-bottom: 8px; }
.result .row.key { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.result .row.key span:first-child, .result .row.key .unit { color: color-mix(in srgb, var(--paper) 70%, transparent); }
.result .row.key .big { color: var(--amber); }
.result .msg { background: var(--paper); border: 2px solid var(--magenta); border-radius: 6px; padding: 16px; }
.result .formula { padding: 4px 2px; }
.viz { width: min(260px, 100%); display: block; margin: 0 auto 6px; }
.legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 16px; margin: 0 0 14px; font-size: 14px; color: var(--ink-soft); }
.sw { display: inline-block; width: 18px; height: 4px; margin-right: 6px; vertical-align: middle; border-radius: 2px; }
.sw.b { background: var(--blue); } .sw.k { background: var(--ink); } .sw.m { background: var(--magenta); }
.steps { flex-wrap: wrap; row-gap: 6px; }
.steps button { width: 30px; height: 30px; font-size: 15px; }
.steps li + li::before { width: 4px; margin-right: 2px; }

/* flat graphic dial that follows the theme */
#dial { filter: drop-shadow(0 18px 24px rgba(8,14,26,.45)); }

/* mode switching */
#learn[data-mode="ask"] .lesson, #learn[data-mode="ask"] .freecard,
#learn[data-mode="free"] .lesson, #learn[data-mode="free"] .ask,
#learn[data-mode="learn"] .ask, #learn[data-mode="learn"] .freecard { display: none; }
.card { background: var(--paper); border: 2px solid var(--ink); border-radius: 6px; padding: 22px; box-shadow: 6px 6px 0 var(--magenta); }
.card h2 { margin-top: 0; }
.link { background: none; border: 0; padding: 8px 0; color: var(--ink-soft); text-decoration: underline; cursor: pointer; font-size: 15px; }
.lesson .link { margin-top: 10px; }
.readout .save { align-self: end; min-height: 44px; padding: 0 14px; border: 2px solid var(--ink); border-radius: 4px; background: none; cursor: pointer; font: 600 18px/1 var(--serif-stack); margin-left: 6px; }
.result .save { margin: 4px 0 8px; min-height: 44px; padding: 0 18px; border: 2px solid var(--ink); border-radius: 4px; background: var(--ink); color: var(--paper); cursor: pointer; font: 600 20px/1 var(--serif-stack); justify-self: start; }
.readout { flex-wrap: wrap; }

/* history */
.history { margin-top: 48px; border-top: 2px solid var(--ink); padding-top: 20px; }
.hhead { display: flex; flex-wrap: wrap; align-items: end; gap: 12px 20px; }
.hhead h2 { margin: 0 auto 0 0; font-size: clamp(26px, 4vw, 34px); }
.hhead label { display: grid; gap: 2px; font-size: 14px; color: var(--ink-soft); }
select { background: var(--paper-2); border: 2px solid var(--ink); border-radius: 4px; padding: 8px 10px; min-height: 40px; font: 600 17px/1 var(--serif-stack); color: var(--ink); }
.addchart { margin: 12px 0 4px; }
.addchart summary { cursor: pointer; font-weight: 700; }
.addchart form { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; margin-top: 10px; }
.addchart input[type=text] { background: var(--paper-2); border: 2px solid var(--ink); border-radius: 4px; padding: 8px 10px; min-height: 44px; font: 600 18px/1 var(--serif-stack); width: 260px; max-width: 100%; }
.addchart label { display: grid; gap: 2px; font-size: 14px; color: var(--ink-soft); }
.addchart label input { width: 140px; }
.addchart .ghost { min-height: 44px; padding: 0 16px; border: 2px solid var(--ink); border-radius: 4px; background: none; cursor: pointer; font: 600 19px/1 var(--serif-stack); }
.hlist { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.hlist li { background: var(--paper); border: 2px solid var(--ink); border-radius: 6px; padding: 12px 14px; }
.hlist li.empty { grid-column: 1 / -1; border-style: dashed; color: var(--ink-soft); }
.hlist p { margin: 6px 0 10px; font-weight: 700; }
.hrow { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.hrow time { color: var(--ink-soft); font-size: 14px; }
.badge { background: var(--ink); color: var(--paper); border-radius: 3px; padding: 2px 8px; font: 700 15px/1.3 var(--serif-stack); }

h3 { font: 700 26px/1.1 var(--serif-stack); margin: 0 0 4px; }
.convgroups { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: 6px; }
.chk { display: flex !important; align-items: center; gap: 10px; color: var(--ink) !important; font-size: 17px !important; }
.chk input { width: 22px; height: 22px; accent-color: var(--magenta); }
.prob { background: var(--paper); border: 2px solid var(--ink); border-radius: 6px; padding: 12px 16px; margin-bottom: 8px; }
.prob p { margin: 0 0 8px; }
.prob.ok { border-color: #2E8B57; box-shadow: inset 6px 0 0 #2E8B57; }
.prob.bad { border-color: var(--magenta); box-shadow: inset 6px 0 0 var(--magenta); }
.prob .key { color: var(--ink-soft); font-weight: 700; margin: 8px 0 0; }
.pa { display: grid; gap: 2px; font-size: 14px; color: var(--ink-soft); margin-bottom: 6px; max-width: 220px; }

.wsc .wsform { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0; }
.wsc .wsform label { display: grid; gap: 2px; font-size: 14px; color: var(--ink-soft); }
.wsteps { margin: 12px 0; padding-left: 22px; }
.wsteps li { padding: 4px 0; color: var(--ink-soft); }
.wsteps li.cur { color: var(--ink); font-weight: 700; }
.wsteps li.done { color: var(--ink-soft); text-decoration: line-through; text-decoration-thickness: 1px; }
.wsread { margin-top: 12px; }
.wsread .row { background: var(--paper-2); }
#wdial { width: 100%; max-width: 560px; display: block; margin: 0 auto; touch-action: none; user-select: none; -webkit-user-select: none; filter: drop-shadow(0 18px 24px rgba(8,14,26,.45)); cursor: grab; }
@media (max-width: 820px) { .wsc .wsform { grid-template-columns: 1fr 1fr; } }

/* full face: zoom bar, detail levels */
#dial { max-width: 680px; }
#dial[data-detail="coarse"] .fine { display: none; }
#dial.panning { cursor: move; }
.zoombar { display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; align-items: center; margin: 0 auto 10px; max-width: 680px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button, .zbtns button { background: var(--paper); border: 2px solid var(--ink); border-radius: 999px; padding: 6px 12px; min-height: 36px; cursor: pointer; font: 600 16px/1 var(--serif-stack); }
.chips button:hover, .zbtns button:hover { background: var(--ink); color: var(--paper); }
.zbtns { display: flex; align-items: center; gap: 6px; }
.zbtns button { width: 36px; padding: 0; border-radius: 6px; font-size: 22px; }
.zbtns span { min-width: 40px; text-align: center; font: 700 16px var(--serif-stack); color: var(--ink-soft); }
.dialhint { max-width: 680px; margin: 8px auto 0; font-size: 14px; color: var(--ink-soft); text-align: center; }
.setwin { margin: 14px auto 0; max-width: 420px; background: var(--paper); border: 2px solid var(--ink); border-radius: 6px; padding: 10px 16px; }
.setwin summary { cursor: pointer; font-weight: 700; }
.setrow { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 10px 0; }
.setrow label { display: grid; gap: 2px; font-size: 14px; color: var(--ink-soft); }
.setwin .actions button { min-height: 40px; padding: 0 12px; border: 2px solid var(--ink); border-radius: 4px; background: none; cursor: pointer; font: 600 17px/1 var(--serif-stack); }
.dial-wrap { top: 70px; }

#dial { filter: drop-shadow(0 12px 20px color-mix(in srgb, var(--ink) 22%, transparent)); }

/* passive state: tutorial and free-use panels stay out of the way */
#learn:not([data-mode="learn"]) .learn-grid { grid-template-columns: 1fr; gap: 10px; }
#learn:not([data-mode="learn"]) .side { order: -1; }
#learn:not([data-mode="learn"]) .dial-wrap { position: static; }
#learn:not([data-mode="learn"]) .card { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 16px; padding: 8px 14px; box-shadow: 3px 3px 0 var(--magenta); }
#learn:not([data-mode="learn"]) .card h2 { font-size: 22px; margin: 0; }
#learn:not([data-mode="learn"]) .card .prose { flex: 1 1 260px; margin: 0; font-size: 15px; max-width: none; }
#learn:not([data-mode="learn"]) .freecard .prose { display: none; }
#learn:not([data-mode="learn"]) .card .actions { margin: 0; }
#learn:not([data-mode="learn"]) .card .actions button { min-height: 38px; padding: 0 14px; font-size: 18px; }
#learn[data-mode="free"] .freecard h2::after { content: ""; }
#learn:not([data-mode="learn"]) #dial, #learn:not([data-mode="learn"]) .zoombar, #learn:not([data-mode="learn"]) .dialhint { max-width: 760px; }
#learn[data-mode="free"] .ask, #learn[data-mode="ask"] .freecard, #learn[data-mode="learn"] .ask, #learn[data-mode="learn"] .freecard { display: none; }

/* mobile */
@media (max-width: 700px) {
  body { font-size: 16px; }
  .bar { gap: 8px 10px; padding: 8px 12px; }
  .brand { font-size: 24px; margin-right: auto; }
  .tabs { order: 3; flex: 1 1 100%; margin: 0 -12px; padding: 0 12px; }
  .tabs button { padding: 8px 12px; font-size: 18px; }
  #fs { display: none; }
  main { padding: 14px 12px 40px; }
  .zoombar { flex-wrap: nowrap; gap: 6px; }
  .chips { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin: 0 -12px; padding: 0 12px; flex: 1 1 auto; min-width: 0; }
  .chips button { white-space: nowrap; flex: none; }
  .zbtns { flex: none; }
  .dialhint { font-size: 13px; }
  .readout { max-width: none; padding: 10px 12px; gap: 8px; }
  .readout input { width: 96px; }
  .lesson, .card, .inputs { padding: 16px; }
  .hhead h2 { flex: 1 1 100%; }
  .hlist { grid-template-columns: 1fr; }
  .result .row { padding: 10px 12px; }
  .wsc .wsform { gap: 8px; }
  .actions button { flex: 1 1 auto; }
}
@media (hover: none) { .chips button:hover, .zbtns button:hover { background: var(--paper); color: var(--ink); } }
.learn-grid, #learn:not([data-mode="learn"]) .learn-grid { grid-template-columns: minmax(0, 1fr); }
@media (min-width: 821px) { #learn[data-mode="learn"] .learn-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); } }
.dial-wrap, .side, .calc > * { min-width: 0; }
@media (max-width: 700px) { #dial, #wdial { margin-top: 18px; margin-bottom: 18px; } }

/* header: icon-only brand, menu drawer on small screens */
.brand { gap: 0; }
.brand svg { width: 34px; height: 34px; }
.menubtn { display: none; background: none; border: 2px solid var(--ink); border-radius: 4px; width: 40px; height: 36px; place-items: center; cursor: pointer; color: var(--ink); }
.theme { width: 40px; height: 36px; }
@media (max-width: 980px) {
  .bar { flex-wrap: nowrap; gap: 10px; padding: 8px 12px; }
  .menubtn { display: grid; }
  .brand { margin-right: auto; }
  .tabs { display: none; position: absolute; top: 100%; left: 0; right: 0; margin: 0; padding: 6px 12px 12px; flex: none; order: 0; flex-direction: column; gap: 0; overflow: visible; background: var(--paper); border-bottom: 2px solid var(--ink); box-shadow: 0 14px 24px rgba(0,0,0,.25); max-height: calc(100vh - 60px); overflow-y: auto; }
  .tabs.open { display: flex; }
  .tabs button { text-align: left; padding: 14px 8px; font-size: 22px; border-bottom: 1px solid var(--line); border-left: 4px solid transparent; }
  .tabs button[aria-selected="true"] { border-left-color: var(--magenta); background: var(--paper-2); }
  #fs { display: none; }
}
.bar { position: sticky; top: 0; z-index: 30; }
main { position: relative; z-index: 1; }
@media (max-width: 700px) {
  .chips { margin: 0; padding: 0 0 2px; }
  .zbtns { padding-left: 4px; background: var(--paper); }
}

.ptime { font: 700 20px var(--serif-stack); margin: 0 0 8px; color: var(--ink-soft); }
.ptime b { color: var(--ink); }
.prob .how { margin: 6px 0 0; font-size: 14px; color: var(--ink-soft); }
.phistbox { border-top: 1px solid var(--line); padding-top: 10px; margin-top: 6px; }
.phist { list-style: none; margin: 6px 0 0; padding: 0; display: grid; gap: 4px; }
.phist li { display: flex; justify-content: space-between; gap: 12px; font-size: 15px; color: var(--ink-soft); }
.phist li b { color: var(--ink); font: 700 18px var(--serif-stack); }

/* test-driven fixes */
.quick { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0 0 12px; }
.quick span { font: 700 18px var(--serif-stack); color: var(--ink-soft); margin-right: 4px; }
.quick button { min-height: 44px; padding: 0 16px; border: 2px solid var(--ink); border-radius: 999px; background: var(--paper); cursor: pointer; font: 600 19px/1 var(--serif-stack); }
.quick button:hover { background: var(--ink); color: var(--paper); }
.lang button { min-width: 44px; min-height: 44px; }
.menubtn, .theme { width: 44px; height: 44px; }
.result .row.key .big { color: var(--amber) !important; }
.result .row.key span:first-child { color: color-mix(in srgb, var(--paper) 78%, transparent); }
@media (min-width: 821px) { #wside .learn-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: start; } #wside .dial-wrap { position: sticky; top: 70px; } }
@media (max-width: 820px) { .calc .result { order: -1; } #wside .wsc { order: -1; } .actions .ghost, .actions .primary { min-height: 44px; } }
@media (max-width: 700px) { .quick { flex-wrap: nowrap; overflow-x: auto; margin: 0 -12px 10px; padding: 0 12px; scrollbar-width: none; } .quick button, .quick span { flex: none; white-space: nowrap; } }
:root { --key-num: #E8A800; }
:root[data-theme="dark"] { --key-num: #14233B; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --key-num: #14233B; } }
.result .row.key .big { color: var(--key-num) !important; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.about { max-width: 780px; margin: 8px auto 48px; padding: 24px 16px 0; border-top: 2px solid var(--ink); color: var(--ink-soft); position: relative; z-index: 1; }
.about h2 { font-size: clamp(24px, 4vw, 32px); color: var(--ink); }
.about h3 { font-size: 22px; margin: 18px 0 6px; color: var(--ink); }
.about p, .about li { font-size: 16px; line-height: 1.6; }
.about ul { padding-left: 20px; }

.about .aboutsep { border: 0; border-top: 1px solid var(--line); margin: 20px 0; }
.about a { color: var(--blue); }
.seo-links ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 16px; }
.seo-links a { font-size: 15px; }