/* ============================================================
   APEXLINE RACING — carbon / livery red / pit amber
   Display: Chakra Petch italic · Body: Saira · Data: Share Tech Mono
   ============================================================ */

:root {
  --carbon-0: #0b0b0d;
  --carbon-1: #131317;
  --carbon-2: #1c1c22;
  --line: #26262e;
  --line-soft: #1e1e25;
  --red: #e5132c;
  --red-deep: #9c0d1e;
  --amber: #ffae00;
  --white: #f4f4f6;
  --grey: #9a9aa6;
  --grey-dim: #63636e;
  --green: #29d47a;
  --display: "Chakra Petch", sans-serif;
  --body: "Saira", sans-serif;
  --mono: "Share Tech Mono", monospace;
  --skew: -8deg;
  --pad: clamp(20px, 4.5vw, 64px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  background: var(--carbon-0);
  color: var(--white);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--red); color: #fff; }

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* carbon weave texture */
.weave {
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,.014) 0 2px, transparent 2px 6px),
    repeating-linear-gradient(-45deg, rgba(255,255,255,.014) 0 2px, transparent 2px 6px);
}

/* ---------- header ---------- */
.top {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px var(--pad);
  background: rgba(11,11,13,.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.wordmark {
  font-family: var(--display);
  font-style: italic;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .04em;
  text-decoration: none;
  white-space: nowrap;
}
.wordmark b { color: var(--red); font-weight: 700; }
.plate {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--carbon-0);
  background: var(--amber);
  padding: 2px 9px 1px;
  transform: skewX(var(--skew));
  white-space: nowrap;
}
.plate span { display: inline-block; transform: skewX(calc(-1 * var(--skew))); }
.top nav {
  margin-left: auto;
  display: flex;
  gap: clamp(12px, 2vw, 28px);
}
.top nav a {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--grey);
  text-decoration: none;
  padding: 4px 2px;
}
.top nav a:hover { color: var(--white); }
.top nav a.hot { color: var(--amber); }

/* ---------- hero ---------- */
.hero {
  padding: clamp(36px, 6vh, 60px) var(--pad) 0;
  position: relative;
}
.hero-clock {
  position: absolute;
  top: clamp(40px, 6vh, 62px);
  right: var(--pad);
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-right: 2px solid var(--red);
  padding-right: 16px;
}
.hero-clock .hc-lbl, .hero-clock .hc-sub {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--grey-dim);
}
.hero-clock .hc-val {
  font-family: var(--mono);
  font-size: clamp(22px, 2vw, 30px);
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}
@media (max-width: 1100px) { .hero-clock { display: none; } }

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 22px;
}
.kicker::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--red);
  transform: skewX(var(--skew));
}
h1 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(40px, 6.3vw, 90px);
  line-height: .95;
  letter-spacing: -.005em;
  max-width: 15ch;
}
h1 .accent { color: var(--red); }
.hero-sub {
  margin-top: 26px;
  max-width: 54ch;
  color: var(--grey);
  font-size: clamp(16px, 1.35vw, 19px);
  font-weight: 300;
}
.hero-sub strong { color: var(--white); font-weight: 500; }
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0 42px;
}
.btn {
  font-family: var(--display);
  font-style: italic;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .05em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 13px 26px;
  transform: skewX(var(--skew));
  border: 1px solid transparent;
  transition: background-color .18s, color .18s, border-color .18s;
}
.btn span { display: inline-block; transform: skewX(calc(-1 * var(--skew))); }
.btn-red { background: var(--red); color: #fff; }
.btn-red:hover { background: #ff2440; }
.btn-ghost { border-color: var(--line); color: var(--grey); }
.btn-ghost:hover { border-color: var(--grey); color: var(--white); }

/* ---------- telemetry board (signature) ---------- */
.board-wrap { padding: 0 var(--pad) clamp(56px, 8vh, 96px); }
.board {
  border: 1px solid var(--line);
  background: var(--carbon-1);
  position: relative;
}
.board-head {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--grey);
  text-transform: uppercase;
}
.board-head .live {
  color: var(--red);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.live-dot {
  width: 8px; height: 8px;
  background: var(--red);
  border-radius: 50%;
  animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: .25; } }
.board-head .sep { color: var(--line); }
.board-head .right { margin-left: auto; color: var(--grey-dim); }

.board-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
}
.map-cell {
  padding: clamp(16px, 2.4vw, 34px);
  border-right: 1px solid var(--line);
  position: relative;
  min-width: 0;
}
.map-cell svg { display: block; width: 100%; height: auto; }

.track-outline { stroke: #2c2c35; stroke-width: 10; fill: none; stroke-linejoin: round; stroke-linecap: round; }
.track-line { stroke: #56565f; stroke-width: 2.5; fill: none; stroke-linejoin: round; stroke-linecap: round; }
.track-label {
  font-family: var(--mono);
  font-size: 13px;
  fill: var(--grey-dim);
  letter-spacing: .04em;
}
.track-label.amber { fill: var(--amber); }
.sf-tick { stroke: var(--amber); stroke-width: 3; }
.sector-tick { stroke: var(--grey-dim); stroke-width: 2; }
.car-glow { fill: var(--red); } /* opacity driven by JS (brake flare) */
.car-dot { fill: var(--red); stroke: #fff; stroke-width: 1.6; }

.data-cell { display: flex; flex-direction: column; min-width: 0; }

.readouts {
  display: grid;
  grid-template-columns: 1.5fr .8fr 1fr;
  border-bottom: 1px solid var(--line);
}
.readout { padding: 16px 18px 14px; border-right: 1px solid var(--line); min-width: 0; }
.readout:last-child { border-right: 0; }
.readout .lbl {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--grey-dim);
  display: block;
  margin-bottom: 2px;
}
.readout .val {
  font-family: var(--mono);
  font-size: clamp(30px, 3.2vw, 46px);
  line-height: 1.1;
  color: var(--white);
  font-variant-numeric: tabular-nums;
}
.readout .val small { font-size: .38em; color: var(--grey-dim); letter-spacing: .08em; }
.readout .val.gear { color: var(--amber); }

.pedals { display: flex; gap: 10px; align-items: flex-end; height: 100%; }
.pedal { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.pedal .bar {
  height: 44px;
  background: var(--carbon-2);
  position: relative;
  overflow: hidden;
}
.pedal .fill {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 0%;
}
.pedal.thr .fill { background: var(--amber); }
.pedal.brk .fill { background: var(--red); }
.pedal .plabel {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--grey-dim);
  text-align: center;
}

.traces { padding: 14px 18px 10px; border-bottom: 1px solid var(--line); }
.traces canvas { display: block; width: 100%; height: 150px; }
.trace-key {
  display: flex;
  gap: 18px;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--grey-dim);
}
.trace-key i {
  display: inline-block;
  width: 14px; height: 3px;
  margin-right: 6px;
  vertical-align: middle;
}

.sectors { display: grid; grid-template-columns: repeat(3, 1fr); flex: 1; }
.sector { padding: 14px 18px; border-right: 1px solid var(--line); }
.sector:last-child { border-right: 0; }
.sector .lbl {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--grey-dim);
  text-transform: uppercase;
}
.sector .time {
  font-family: var(--mono);
  font-size: clamp(17px, 1.6vw, 22px);
  margin-top: 3px;
  color: var(--white);
  font-variant-numeric: tabular-nums;
}
.sector .time.best { color: var(--green); }
.sector .time.running { color: var(--amber); }
.sector .time.idle { color: var(--grey-dim); }

.lap-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--grey);
  font-variant-numeric: tabular-nums;
}
.lap-row b { color: var(--white); font-weight: 400; }
.lap-row .best-lap b { color: var(--green); }

.rm-note {
  display: none;
  padding: 10px 18px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--grey-dim);
}

/* ---------- diagonal red strip ---------- */
.strip {
  background: var(--red);
  color: #fff;
  transform: skewY(-1.6deg);
  margin: 10px 0;
  overflow: hidden;
}
.strip-inner {
  display: flex;
  gap: 0;
  white-space: nowrap;
  font-family: var(--display);
  font-style: italic;
  font-weight: 600;
  text-transform: uppercase;
  font-size: clamp(15px, 1.6vw, 20px);
  letter-spacing: .06em;
  padding: 12px 0;
  animation: slide 26s linear infinite;
}
.strip-inner span { padding: 0 28px; }
.strip-inner .dot { color: rgba(255,255,255,.55); }
@keyframes slide { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .strip-inner { animation: none; }
  .live-dot { animation: none; }
}

/* ---------- sections ---------- */
section { position: relative; }
.section-pad { padding: clamp(64px, 10vh, 120px) var(--pad); }
.sec-head { margin-bottom: clamp(36px, 5vh, 56px); }
.sec-eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--amber);
  display: block;
  margin-bottom: 12px;
}
h2 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(30px, 4.6vw, 60px);
  line-height: 1;
}
.sec-head p {
  margin-top: 18px;
  max-width: 58ch;
  color: var(--grey);
  font-weight: 300;
}

/* ---------- car / spec ---------- */
.car-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: center;
}
.car-art { min-width: 0; }
.car-art svg { display: block; width: 100%; height: auto; }
.spec { border-top: 2px solid var(--red); }
.spec-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 4px;
  border-bottom: 1px solid var(--line);
}
.spec-row dt {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--grey-dim);
  padding-top: 3px;
}
.spec-row dd {
  font-family: var(--mono);
  font-size: 15.5px;
  color: var(--white);
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.spec-row dd small { color: var(--grey-dim); }

/* ---------- drivers (white livery section) ---------- */
.drivers {
  background: var(--white);
  color: var(--carbon-0);
  clip-path: polygon(0 0, 100% 3.2vw, 100% 100%, 0 calc(100% - 3.2vw));
  padding-top: calc(clamp(64px, 10vh, 120px) + 3.2vw);
  padding-bottom: calc(clamp(64px, 10vh, 120px) + 3.2vw);
}
.drivers .sec-eyebrow { color: var(--red); }
.drivers .sec-head p { color: #4c4c56; }
.driver-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 2.6vw, 36px);
}
.driver {
  border: 1px solid #d8d8de;
  background: #fff;
  padding: 26px 24px 22px;
  position: relative;
  overflow: hidden;
}
.driver::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--red) 0 62%, var(--carbon-0) 62% 100%);
}
.driver-role {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--red);
}
.driver h3 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 26px;
  line-height: 1.05;
  margin: 6px 0 4px;
  position: relative;
}
.driver .flag {
  font-family: var(--mono);
  font-size: 12.5px;
  color: #83838d;
  letter-spacing: .06em;
}
.driver p {
  margin-top: 14px;
  font-size: 14.5px;
  line-height: 1.62;
  color: #45454e;
  font-weight: 300;
}
.driver-stats {
  margin-top: 18px;
  border-top: 1px solid #e3e3e8;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.driver-stats div { padding: 10px 2px 0; }
.driver-stats .k {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #9a9aa4;
  display: block;
}
.driver-stats .v {
  font-family: var(--mono);
  font-size: 17px;
  color: var(--carbon-0);
}

/* ---------- 24h timeline ---------- */
.timeline-scroll {
  overflow-x: auto;
  padding-bottom: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}
.timeline {
  min-width: 980px;
  position: relative;
  padding-top: 8px;
}
.tl-bar {
  height: 14px;
  background: linear-gradient(90deg,
    #ffae00 0%, #d97a12 12%, #45356b 26%, #10101e 38%,
    #10101e 58%, #45356b 66%, #ff9d4d 74%, #ffd66b 84%, #ffae00 100%);
  position: relative;
}
.tl-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent 0 calc(100%/24 - 1px), rgba(11,11,13,.55) calc(100%/24 - 1px) calc(100%/24));
}
.tl-hours {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--grey-dim);
  margin-top: 8px;
}
.tl-events {
  position: relative;
  height: 210px;
  margin-top: 26px;
}
.tl-event {
  position: absolute;
  top: 0;
  width: 205px;
  padding-left: 14px;
  border-left: 2px solid var(--red);
}
.tl-event::before {
  content: "";
  position: absolute;
  left: -5px;
  top: -4px;
  width: 8px;
  height: 8px;
  background: var(--red);
  transform: rotate(45deg);
}
.tl-event.amber { border-left-color: var(--amber); }
.tl-event.amber::before { background: var(--amber); }
.tl-time {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--amber);
  letter-spacing: .06em;
}
.tl-event h4 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 16px;
  margin: 4px 0 4px;
  line-height: 1.15;
}
.tl-event p {
  font-size: 13px;
  line-height: 1.5;
  color: var(--grey);
  font-weight: 300;
}
.tl-row2 { top: 116px; }

/* ---------- partners ---------- */
.partners { background: var(--carbon-1); border-top: 1px solid var(--line); }
.partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: center;
}
.zone-list { margin-top: 26px; border-top: 1px solid var(--line); }
.zone {
  display: flex;
  align-items: baseline;
  gap: 14px;
  width: 100%;
  padding: 13px 8px;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  border: 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: background-color .15s;
}
.zone:hover, .zone.active { background: rgba(229,19,44,.06); }
.zone .z-id {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--amber);
  min-width: 30px;
}
.zone .z-name {
  font-family: var(--display);
  font-style: italic;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 15px;
  flex: 1;
}
.zone .z-tier {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--grey-dim);
  text-align: right;
}
.zone.active .z-tier { color: var(--white); }
.partner-cta { margin-top: 30px; }
.livery-zone { fill: rgba(255,174,0,0); stroke: var(--amber); stroke-width: 0; transition: fill .2s, stroke-width .2s; }
.livery-zone.lit { fill: rgba(255,174,0,.18); stroke-width: 1.5; }
.zone-tag { font-family: var(--mono); font-size: 12px; fill: var(--amber); opacity: 0; transition: opacity .2s; }
.zone-tag.lit { opacity: 1; }

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--line);
  padding: 36px var(--pad) 44px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px 44px;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--grey-dim);
}
footer .wordmark { font-size: 17px; }
footer a { color: var(--grey); text-decoration: none; }
footer a:hover { color: var(--white); }
footer .fine { margin-left: auto; }

/* ---------- page-load sequence (hero only; content never hidden on scroll) ---------- */
@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}
.hero .kicker, .hero h1, .hero-sub, .hero-cta, .board-wrap .board {
  animation: rise .7s cubic-bezier(.2,.7,.2,1) backwards;
}
.hero h1 { animation-delay: .08s; }
.hero-sub { animation-delay: .18s; }
.hero-cta { animation-delay: .26s; }
.board-wrap .board { animation-delay: .34s; }
@media (prefers-reduced-motion: reduce) {
  .hero .kicker, .hero h1, .hero-sub, .hero-cta, .board-wrap .board { animation: none; }
}

/* ---------- guide page ---------- */
.guide-main { max-width: 900px; margin: 0 auto; padding: clamp(48px, 7vh, 80px) var(--pad) 80px; }
.guide-main h2 { font-size: clamp(24px, 3vw, 36px); margin: 56px 0 18px; }
.guide-main p, .guide-main li { color: var(--grey); font-weight: 300; max-width: 68ch; }
.guide-main li { margin-bottom: 10px; }
.guide-main ol, .guide-main ul { padding-left: 22px; margin: 14px 0; }
.guide-main strong { color: var(--white); font-weight: 500; }
.swatches { display: flex; flex-wrap: wrap; gap: 12px; margin: 20px 0; }
.swatch { width: 128px; border: 1px solid var(--line); }
.swatch .chip { height: 64px; }
.swatch .meta {
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--grey);
  background: var(--carbon-1);
}
.swatch .meta b { display: block; color: var(--white); font-weight: 400; }
pre {
  background: var(--carbon-1);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  color: #c9c9d2;
  margin: 16px 0 26px;
}
pre .c { color: var(--grey-dim); }
.type-demo { border: 1px solid var(--line); padding: 22px 24px; margin: 18px 0; }
.type-demo .td-display {
  font-family: var(--display); font-style: italic; font-weight: 700;
  text-transform: uppercase; font-size: 30px; line-height: 1.05;
}
.type-demo .td-body { margin-top: 10px; color: var(--grey); font-weight: 300; }
.type-demo .td-mono { margin-top: 10px; font-family: var(--mono); font-size: 14px; color: var(--amber); }
.pass-list { border-top: 1px solid var(--line); margin-top: 18px; }
.pass {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 18px;
  padding: 18px 2px;
  border-bottom: 1px solid var(--line);
}
.pass .p-num {
  font-family: var(--display); font-style: italic; font-weight: 700;
  color: var(--red); font-size: 22px; text-transform: uppercase;
}
.pass p { margin: 0; }
.back-link {
  font-family: var(--mono); font-size: 13px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--amber); text-decoration: none;
}
.back-link:hover { color: var(--white); }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .board-grid { grid-template-columns: 1fr; }
  .map-cell { border-right: 0; border-bottom: 1px solid var(--line); }
  .car-grid, .partner-grid { grid-template-columns: 1fr; }
  .driver-grid { grid-template-columns: 1fr; max-width: 560px; }
}
@media (max-width: 700px) {
  .top nav a.hide-sm, .top .plate { display: none; }
  .top { gap: 12px; }
  .top nav { gap: 14px; }
  .top nav a { font-size: 11.5px; letter-spacing: .05em; }
  .wordmark { font-size: 18px; }
  .readouts { grid-template-columns: 1.4fr 1fr; }
  .readout.pedal-cell { grid-column: 1 / -1; border-top: 1px solid var(--line); border-right: 0; }
  .readout:nth-child(2) { border-right: 0; }
  h1 { font-size: clamp(38px, 11vw, 52px); }
  .tl-event { width: 172px; }
  .drivers { clip-path: polygon(0 0, 100% 5vw, 100% 100%, 0 calc(100% - 5vw)); }
  .pass { grid-template-columns: 1fr; gap: 6px; }
}