/* SS3MX. Number-plate yellow on graphite, with clay as the accent. */
@font-face { font-family: 'Barlow Condensed'; font-weight: 600; font-display: swap; src: url('/fonts/barlow-condensed-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Barlow Condensed'; font-weight: 800; font-display: swap; src: url('/fonts/barlow-condensed-latin-800-normal.woff2') format('woff2'); }
@font-face { font-family: 'Barlow'; font-weight: 400; font-display: swap; src: url('/fonts/barlow-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'Barlow'; font-weight: 600; font-display: swap; src: url('/fonts/barlow-latin-600-normal.woff2') format('woff2'); }

:root {
  color-scheme: dark;
  --bg: #111315;
  --bg-2: #181b1e;
  --panel: #1e2225;
  --line: #343a3f;
  --text: #f6f5f0;
  --muted: #a9b0b4;
  --yellow: #ffd21f;
  --clay: #e8743f;
  --blue: #7cc4f0;
  --ink: #111315;
  --head: 'Barlow Condensed', 'Arial Narrow', Arial, sans-serif;
  --body: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --gutter: max(16px, env(safe-area-inset-left));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg) url('/art/tread.svg'); color: var(--text); font: 400 17px/1.55 var(--body); }
[hidden] { display: none !important; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--yellow); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--head); font-weight: 800; line-height: 1.02; letter-spacing: .005em; margin: 0; text-transform: uppercase; }
h1 { font-size: clamp(3rem, 9vw, 5.6rem); }
h2 { font-size: clamp(2.1rem, 5vw, 3.2rem); }
h3 { font-size: 1.6rem; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }

.wrap { width: min(1180px, 100%); margin: 0 auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--yellow); color: var(--ink); padding: 10px 14px; z-index: 20; }
.skip:focus { left: 8px; }
.eyebrow { font: 600 1.05rem/1.2 var(--head); letter-spacing: .14em; text-transform: uppercase; color: var(--yellow); margin: 0 0 .6em; }
.lede { font-size: 1.2rem; color: #dcdfe0; max-width: 34em; }
.muted { color: var(--muted); }

/* Header */
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 8px var(--gutter); padding-top: max(8px, env(safe-area-inset-top)); background: rgba(17, 19, 21, .96); border-bottom: 3px solid var(--yellow); }
.brand { display: block; min-height: 44px; }
.brand img { width: 132px; height: auto; }
.top nav { display: flex; flex-wrap: wrap; }
.top nav a { display: flex; align-items: center; min-height: 44px; padding: 0 12px; color: var(--text); font: 600 1.15rem var(--head); letter-spacing: .05em; text-transform: uppercase; text-decoration: none; }
.top nav a:hover, .top nav a[aria-current] { color: var(--yellow); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 8px 22px; border: 2px solid var(--text); background: transparent; color: var(--text); font: 800 1.2rem var(--head); letter-spacing: .05em; text-transform: uppercase; text-decoration: none; cursor: pointer; transform: skewX(-8deg); }
.btn:hover { background: var(--text); color: var(--ink); }
.btn.primary { background: var(--yellow); border-color: var(--yellow); color: var(--ink); }
.btn.primary:hover { background: #ffe25f; border-color: #ffe25f; }
.btn.dark { background: var(--ink); border-color: var(--ink); color: var(--yellow); }
.btn.dark:hover { background: #2a2f33; border-color: #2a2f33; color: var(--yellow); }
.cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }

/* Home */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 28px; align-items: center; width: min(1280px, 100%); margin: 0 auto; padding: clamp(36px, 7vw, 84px) var(--gutter); }
.hero h1 em { font-style: normal; color: var(--yellow); }
.hero h1 { margin-bottom: .3em; }
.hero-art { margin: 0; }
.hero-art img { width: 100%; }
.band { padding: clamp(44px, 7vw, 80px) 0; background: var(--bg-2); border-top: 1px solid var(--line); }
.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 30px; }
.service { padding: 24px; background: var(--panel); border-top: 4px solid var(--yellow); }
.service h3 { margin: 14px 0 10px; }
.service ul { margin: 0; padding: 0; list-style: none; }
.service li { padding: 7px 0; border-top: 1px solid var(--line); }
.tool-band { background: var(--yellow); color: var(--ink); padding: clamp(36px, 6vw, 60px) 0; }
.tool-band .eyebrow { color: var(--ink); }
.tool-promo { display: flex; align-items: center; gap: 32px; }
.tool-promo .plate { flex: none; width: clamp(100px, 16vw, 170px); }
.tool-promo h2 { margin-bottom: 10px; }
.tool-promo p:not(.eyebrow) { max-width: 40em; }
.note-lead { color: var(--muted); margin-top: 10px; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { font: 600 1rem var(--head); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.bikes tbody th { font: 800 1.4rem var(--head); text-transform: uppercase; color: var(--yellow); white-space: nowrap; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; align-items: start; }
.contact-grid h2 { margin-bottom: 14px; }
.contact-lines { margin: 0; }
.contact-lines > div { padding: 14px 0; border-bottom: 1px solid var(--line); }
.contact-lines dt { font: 600 1rem var(--head); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.contact-lines dd { margin: 0; font-size: 1.25rem; font-weight: 600; }
.foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 24px var(--gutter); padding-bottom: max(24px, env(safe-area-inset-bottom)); border-top: 3px solid var(--yellow); color: var(--muted); }
.foot p { margin: 0; }

/* Setup tool */
.setup { padding-block: 32px 60px; }
.setup-head { margin-bottom: 24px; }
.setup-head h1 { font-size: clamp(2.8rem, 7vw, 4.4rem); margin-bottom: .2em; }
.setup-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 20px; align-items: start; }
.panel { background: var(--panel); border: 1px solid var(--line); padding: 20px; }
.panel-title { display: flex; align-items: center; gap: 10px; font-size: 1.6rem; margin: 22px 0 12px; }
.panel > .panel-title:first-child { margin-top: 0; }
.panel-title span { display: inline-grid; place-items: center; width: 30px; height: 30px; background: var(--yellow); color: var(--ink); font-size: 1.2rem; transform: skewX(-8deg); }
label { font-weight: 600; }
.field-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.field-row label { display: flex; flex-direction: column; justify-content: flex-end; gap: 6px; font-size: .95rem; }
select, input[type='number'] { width: 100%; min-height: 48px; padding: 8px 10px; background: var(--bg); border: 1px solid #5a6268; border-radius: 0; color: var(--text); font: 600 16px var(--body); }
/* iOS draws its own light select over our light text, so selects are fully custom. */
select { -webkit-appearance: none; appearance: none; padding-right: 30px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23ffd21f' stroke-width='2'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; background-size: 12px 8px; }
.weight > label { display: block; margin-bottom: 6px; font-size: .95rem; }
.weight-input { display: flex; gap: 10px; }
.weight-input input[type='number'] { flex: 1; min-width: 0; }
.field-error { margin: 8px 0 0; color: #ff9a76; font-weight: 600; }
.units { display: flex; flex: none; }

/* Radio groups share one look, a row of plate-shaped buttons. */
.seg { border: 0; margin: 16px 0 0; padding: 0; min-width: 0; }
.seg legend { padding: 0 0 6px; font-size: .95rem; font-weight: 600; }
.seg-row { display: flex; flex-wrap: wrap; gap: 6px; }
.seg-row label, .units label { position: relative; flex: 1 1 auto; cursor: pointer; }
.units label { flex: none; }
.seg-row input, .units input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: pointer; }
.seg-row span, .units span { display: flex; align-items: center; justify-content: center; min-height: 48px; padding: 6px 14px; background: var(--bg); border: 1px solid #5a6268; font: 600 1.12rem var(--head); letter-spacing: .03em; text-align: center; }
.seg-row input:checked + span, .units input:checked + span { background: var(--yellow); border-color: var(--yellow); color: var(--ink); }
.seg-row input:focus-visible + span, .units input:focus-visible + span { outline: 3px solid var(--blue); outline-offset: 2px; }

.see-results { display: none; width: 100%; margin-top: 20px; }
.results { display: grid; gap: 14px; min-width: 0; }
.result-head h2 { font-size: clamp(2rem, 4.5vw, 2.8rem); }
.result-head p { margin: 4px 0 0; }
.result-head .eyebrow { margin-bottom: .3em; }
.spring-pick { margin: 0; }
.result-block h3 { margin-bottom: 10px; color: var(--yellow); }
.source { color: var(--muted); font-size: .95rem; }
.clickers .value { font-weight: 600; white-space: nowrap; }
.clickers .delta { white-space: nowrap; color: var(--muted); }
.clickers .firmer { color: var(--clay); }
.clickers .softer { color: var(--blue); }
.clickers tbody th { font-weight: 400; }
.sag-line { margin: 14px 0 0; font-size: 1.1rem; }
.stats { margin: 0; display: grid; gap: 14px; }
.stat dt { font: 600 1rem var(--head); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.stat dd { margin: 0; }
.stat strong { display: block; font: 800 1.9rem/1.1 var(--head); }
.stat small { display: block; font-size: .95rem; color: #cfd3d5; margin-top: 2px; }
.flag { display: inline-block; padding: 0 6px; background: var(--clay); color: var(--ink); font: 600 .85rem var(--head); letter-spacing: .05em; text-transform: uppercase; }
.callout { margin: 14px 0 0; padding: 12px 14px; border-left: 4px solid var(--clay); background: rgba(232, 116, 63, .12); }
.fine-note { margin: 14px 0 0; color: var(--muted); font-size: .95rem; }
.result-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.copy-box { width: 100%; padding: 10px; background: var(--bg); border: 1px solid #5a6268; color: var(--text); font: 16px/1.4 ui-monospace, Menlo, Consolas, monospace; }
.empty p { margin: 0; }

.worksheet, .fixes { margin-top: 20px; }
.sag-result { margin-top: 14px; }
.sag-result .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 10px; }
.sag-result p { margin: 0; }
.fixes details { border-top: 1px solid var(--line); }
.fixes summary { display: flex; align-items: center; min-height: 48px; padding: 8px 0; font-weight: 600; cursor: pointer; }
.fixes summary::before { content: '+'; flex: none; width: 24px; color: var(--yellow); font: 800 1.4rem var(--head); }
.fixes details[open] summary::before { content: '\2212'; }
.fixes details p { margin: 0 0 14px 24px; }
.fine { margin-top: 24px; color: var(--muted); font-size: .95rem; }
.fine h2 { font-size: 1.4rem; margin-bottom: 8px; color: var(--text); }
.fine ul { margin: 0; padding-left: 20px; }
.fine li { margin-bottom: 4px; }

@media (min-width: 981px) {
  .setup-grid form { position: sticky; top: 84px; }
}
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; }
  .services, .setup-grid, .contact-grid { grid-template-columns: 1fr; }
  .see-results { display: flex; }
}
@media (max-width: 640px) {
  .brand img { width: 112px; }
  .top { position: static; padding-block: 6px; }
  .top nav { width: 100%; justify-content: space-between; margin-inline: -8px; width: calc(100% + 16px); }
  .top nav a { padding: 0 8px; font-size: 1.05rem; }
  html { scroll-padding-top: 12px; }
  .tool-promo { flex-direction: column; align-items: flex-start; }
  .field-row { grid-template-columns: 1fr 1fr; }
  .field-row label:first-child { grid-column: 1 / -1; }
  .sag-fields { grid-template-columns: 1fr; }
  .clickers th, .clickers td { padding: 10px 6px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* Service request form */
.service-page { max-width: 820px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; font-size: .95rem; }
.field-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.field-pair .field { justify-content: flex-end; }
input:not([type]), input[type='tel'], input[type='email'], textarea { width: 100%; min-height: 48px; padding: 10px; background: var(--bg); border: 1px solid #5a6268; border-radius: 0; color: var(--text); font: 400 16px/1.4 var(--body); }
.field-row input:not([type]) { font-weight: 600; }
textarea { resize: vertical; }
textarea[readonly] { color: var(--muted); }
.hint { margin: 8px 0 0; color: var(--muted); font-size: .95rem; }
.trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-error { margin-top: 18px; }
.send { width: 100%; margin-top: 18px; }
.send:disabled { opacity: .6; cursor: wait; }
.form-done h2 { margin-bottom: 10px; color: var(--yellow); }
.form-done:focus { outline: none; }
@media (max-width: 640px) { .field-pair { grid-template-columns: 1fr; gap: 0; } }