/* PES sporty theme: shared by index.html, about.html, contributors.html and feedback.html.
   Track-night black, volt accent, emerald brand dot. System fonts only (no font CDN). */
:root {
  --bg: #07090c; --bg2: #0d1117; --card: #10151c; --line: rgba(255,255,255,0.09);
  --fg: #f5f7fa; --muted: #9aa4b2; --dim: #6b7480;
  --volt: #d4ff3a; --volt-ink: #0b0f02; --emerald: #10b981; --track: #e2553b;
  --display: "Helvetica Neue", "Arial Narrow", Arial, system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before { animation: none !important; transition: none !important; } }
body { margin: 0; padding-top: 56px; background: var(--bg); color: var(--fg); overflow-x: hidden;
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--volt); outline-offset: 3px; border-radius: 6px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* type */
.display { font-family: var(--display); font-weight: 900; font-style: italic; text-transform: uppercase;
  font-stretch: condensed; letter-spacing: -0.01em; line-height: 0.92; margin: 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 800; letter-spacing: .14em;
  text-transform: uppercase; color: var(--volt); }
.eyebrow::before { content: ""; width: 22px; height: 3px; background: var(--volt); transform: skewX(-20deg); }
.volt { color: var(--volt); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 0 26px;
  font-family: var(--display); font-weight: 900; font-style: italic; text-transform: uppercase; letter-spacing: .04em;
  font-size: 17px; text-decoration: none; border-radius: 6px; transform: skewX(-8deg); transition: transform .15s, background .15s, box-shadow .15s; }
.btn > span { transform: skewX(8deg); display: inline-flex; align-items: center; gap: 10px; }
.btn-volt { background: var(--volt); color: var(--volt-ink); box-shadow: 0 10px 30px -10px rgba(212,255,58,.55); }
.btn-volt:hover { transform: skewX(-8deg) translateY(-2px); box-shadow: 0 16px 34px -12px rgba(212,255,58,.7); }
.btn-ghost { border: 2px solid rgba(255,255,255,.22); color: var(--fg); }
.btn-ghost:hover { border-color: var(--volt); color: var(--volt); }

/* hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line);
  background: radial-gradient(900px 500px at 85% 10%, rgba(16,185,129,.16), transparent 60%),
              radial-gradient(700px 420px at 0% 100%, rgba(212,255,58,.10), transparent 60%), var(--bg); }
.hero .lanes { position: absolute; inset: auto -10% -2px -10%; height: 46%; opacity: .5; pointer-events: none; }
.hero-grid { position: relative; display: grid; gap: 40px; padding-top: 72px; padding-bottom: 84px; align-items: center; }
.hero h1 { font-size: clamp(56px, 11vw, 124px); }
.hero h1 .line2 { display: block; -webkit-text-stroke: 2px var(--fg); color: transparent; }
.hero .lead { max-width: 560px; margin: 22px 0 0; font-size: 18px; color: #c9d1db; }
.hero .ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; padding: 0; list-style: none; }
.chips li { font-size: 13px; font-weight: 700; letter-spacing: .04em; color: var(--muted); padding: 7px 12px;
  border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.03); }
.chips b { color: var(--fg); }

/* station stack (hero visual) */
.stack { display: grid; gap: 14px; }
.lane { position: relative; display: grid; grid-template-columns: 64px 1fr auto; align-items: center; gap: 16px;
  padding: 18px 20px; background: linear-gradient(100deg, var(--card), #0b0f14); border: 1px solid var(--line);
  border-left: 4px solid var(--volt); border-radius: 10px; text-decoration: none; transform: skewX(-6deg);
  transition: transform .15s, border-color .15s; }
.lane > * { transform: skewX(6deg); }
.lane:hover { transform: skewX(-6deg) translateX(6px); border-color: rgba(212,255,58,.5); }
.lane .no { font-family: var(--display); font-style: italic; font-weight: 900; font-size: 40px; color: var(--volt); line-height: 1; }
.lane .t { font-family: var(--display); font-style: italic; font-weight: 900; text-transform: uppercase; font-size: 22px; letter-spacing: .02em; }
.lane .s { color: var(--muted); font-size: 14px; }
.lane .go { color: var(--volt); font-weight: 800; font-size: 20px; }
.lane.run { border-left-color: var(--track); } .lane.run .no, .lane.run .go { color: var(--track); }
.lane.test { border-left-color: var(--emerald); } .lane.test .no, .lane.test .go { color: var(--emerald); }

/* sections */
section.band { padding: 84px 0; }
.band h2 { font-size: clamp(38px, 6vw, 64px); margin-top: 12px; }
.band .sub { color: var(--muted); max-width: 640px; margin: 14px 0 0; font-size: 17px; }
.cards { display: grid; gap: 18px; margin-top: 40px; }
.card { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 26px; overflow: hidden; }
.card::after { content: ""; position: absolute; top: 0; right: -30px; width: 120px; height: 6px; background: var(--volt); transform: skewX(-30deg); opacity: .85; }
.card.run::after { background: var(--track); } .card.test::after { background: var(--emerald); }
.card .k { font-family: var(--display); font-style: italic; font-weight: 900; font-size: 15px; letter-spacing: .12em; color: var(--dim); }
.card h3 { font-family: var(--display); font-style: italic; font-weight: 900; text-transform: uppercase; font-size: 26px; margin: 8px 0 8px; }
.card p { margin: 0; color: #c2cad4; font-size: 15px; }
.card a.more { display: inline-block; margin-top: 16px; color: var(--volt); font-weight: 800; text-decoration: none; }
.card a.more:hover { text-decoration: underline; }

.steps { counter-reset: s; display: grid; gap: 14px; margin-top: 36px; padding: 0; list-style: none; }
.steps li { counter-increment: s; display: flex; gap: 16px; align-items: flex-start; padding: 18px 20px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg2); }
.steps li::before { content: counter(s, decimal-leading-zero); font-family: var(--display); font-style: italic; font-weight: 900; font-size: 28px; color: var(--volt); line-height: 1; min-width: 44px; }
.steps b { display: block; font-size: 16px; } .steps span { color: var(--muted); font-size: 15px; }

.privacy { background: linear-gradient(180deg, var(--bg2), var(--bg)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.ticks { display: grid; gap: 12px; margin: 30px 0 0; padding: 0; list-style: none; }
.ticks li { display: flex; gap: 12px; align-items: flex-start; color: #d3dae3; }
.ticks li::before { content: "✓"; flex: none; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 6px;
  background: rgba(16,185,129,.16); color: var(--emerald); font-weight: 900; font-size: 14px; }

/* PES Pro */
.pro { position: relative; overflow: hidden; }
.pro-box { position: relative; border: 1px solid rgba(212,255,58,.35); border-radius: 18px; padding: 34px 26px;
  background: radial-gradient(600px 300px at 100% 0%, rgba(212,255,58,.14), transparent 60%), var(--card); }
.tag { display: inline-block; font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px; color: var(--volt); border: 1px solid rgba(212,255,58,.45); background: rgba(212,255,58,.08); }
.pro ul.planned { margin: 24px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.pro ul.planned li { padding-left: 26px; position: relative; color: #d3dae3; }
.pro ul.planned li::before { content: ""; position: absolute; left: 0; top: .55em; width: 14px; height: 4px; background: var(--volt); transform: skewX(-25deg); }
.pro .ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.pro .fine { margin: 16px 0 0; font-size: 13px; color: var(--dim); max-width: 640px; }
.pro .fine a { color: var(--muted); }

footer { padding: 40px 0 56px; color: var(--dim); font-size: 13px; border-top: 1px solid var(--line); }
footer .row { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; justify-content: space-between; }
footer a { color: var(--muted); text-decoration: none; } footer a:hover { color: var(--volt); }
footer .legal { margin-top: 14px; max-width: 760px; }

@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.15fr .85fr; padding-top: 96px; padding-bottom: 110px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .ticks { grid-template-columns: repeat(2, 1fr); }
  .pro-box { padding: 48px; }
}
@media (max-width: 420px) { .btn { width: 100%; } .lane { grid-template-columns: 48px 1fr auto; padding: 16px; } .lane .no { font-size: 32px; } }

/* ── Sub-pages (about, contributors, feedback) ─────────────────────────── */
.page-hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line);
  background: radial-gradient(800px 380px at 90% 0%, rgba(16,185,129,.14), transparent 60%),
              radial-gradient(600px 320px at 0% 100%, rgba(212,255,58,.08), transparent 60%), var(--bg); }
.page-hero .lanes { position: absolute; inset: auto -10% -2px -10%; height: 60%; opacity: .45; pointer-events: none; }
.page-hero .wrap { position: relative; padding-top: 64px; padding-bottom: 56px; }
.page-hero h1 { font-size: clamp(48px, 9vw, 96px); margin-top: 16px; }
.page-hero .lead { max-width: 640px; margin: 18px 0 0; font-size: 18px; color: #c9d1db; }
.prose { display: grid; gap: 18px; }
.prose .card h2 { font-family: var(--display); font-style: italic; font-weight: 900; text-transform: uppercase; font-size: 26px; margin: 6px 0 10px; letter-spacing: .01em; }
.prose .card p + p { margin-top: 12px; }
.prose .card ul { margin: 6px 0 0; padding-left: 20px; color: #c2cad4; font-size: 15px; }
.prose .card li { margin: 6px 0; }
.prose code { color: var(--volt); font-size: 14px; }
.prose a:not(.btn) { color: var(--volt); }
.note { margin-top: 12px; font-size: 13px; color: var(--dim); }
.person { display: grid; gap: 20px; align-items: start; }
.avatar { width: 84px; height: 84px; display: grid; place-items: center; border-radius: 16px; transform: skewX(-8deg);
  background: var(--volt); color: var(--volt-ink); font-family: var(--display); font-style: italic; font-weight: 900; font-size: 44px; }
.avatar > span { transform: skewX(8deg); }
.links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.contact .btn { margin-top: 18px; }
.contact .checklist { margin: 12px 0 0; padding: 0; list-style: none; display: grid; gap: 6px; color: #c2cad4; font-size: 15px; }
.contact .checklist li::before { content: "— "; color: var(--volt); font-weight: 900; }
@media (min-width: 900px) {
  .prose.two { grid-template-columns: repeat(2, 1fr); }
  .person { grid-template-columns: 84px 1fr; }
}

[hidden] { display: none !important; }