:root {
  --void: #111114;
  --panel: #1b1b21;
  --heat: #ff4d6d;
  --heat-dim: #c72d4c;
  --paper: #f4f1ec;
  --mute: #9a9590;
}

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  background: var(--void);
  color: var(--paper);
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  line-height: 1.55;
}

img { max-width: 100%; display: block; }
a { color: var(--heat); }

h1, h2, h3, .mark, .btn {
  font-family: Syne, "Trebuchet MS", sans-serif;
  font-weight: 800;
}

h1 { font-size: clamp(2.6rem, 7vw, 5rem); line-height: 0.95; margin: 0.1em 0 0.35em; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.7rem, 3.8vw, 2.8rem); line-height: 1; margin: 0 0 1rem; }
h3 { font-size: 1.2rem; margin: 0 0 0.4rem; }

.kicker {
  color: var(--heat);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
}

.bar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1.3rem;
  background: rgba(17, 17, 20, 0.94);
  border-bottom: 1px solid rgba(255, 77, 109, 0.25);
  backdrop-filter: blur(10px);
}

.mark { color: var(--paper); text-decoration: none; font-size: 1.05rem; flex-shrink: 0; }
.mark span { color: var(--heat); }

nav { display: flex; flex-wrap: wrap; gap: 0.45rem 0.95rem; margin-left: auto; }
nav a { color: var(--paper); text-decoration: none; font-size: 0.86rem; font-weight: 600; }
.bar-mail { font-size: 0.78rem; font-weight: 700; white-space: nowrap; }

.menu {
  display: none;
  background: var(--heat);
  color: #fff;
  border: 0;
  padding: 0.45rem 0.75rem;
  font: inherit;
  cursor: pointer;
}

.hero { padding: 3.2rem 1.3rem 1.4rem; max-width: 48rem; }
.lede { font-size: 1.08rem; color: #d8d3cc; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.7rem; margin: 1.3rem 0 0.9rem; }

.btn {
  display: inline-block;
  text-decoration: none;
  border: 0;
  padding: 0.75rem 1.1rem;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn.heat { background: var(--heat); color: #fff; }
.btn.ghost { background: transparent; color: var(--paper); box-shadow: inset 0 0 0 1px var(--paper); }
.where { color: var(--mute); font-size: 0.9rem; }

.tape { overflow: hidden; border-top: 1px solid rgba(255, 77, 109, 0.35); border-bottom: 1px solid rgba(255, 77, 109, 0.35); background: var(--panel); }
.tape-track {
  display: flex;
  gap: 2rem;
  width: max-content;
  padding: 0.55rem 0;
  animation: run 26s linear infinite;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--heat);
}
@keyframes run { to { transform: translateX(-50%); } }

#name, .measure, .kit, .lane, .notes, .faq, .desk { padding: 4.2rem 1.3rem; }
section[id] { scroll-margin-top: 4.6rem; }

.split { display: grid; grid-template-columns: 1.35fr 0.75fr; gap: 1.4rem; }
aside, .lane ol { background: var(--panel); padding: 1.3rem 1.2rem; border-left: 4px solid var(--heat); }

.intro { max-width: 42rem; color: #d8d3cc; }

.slider-wrap {
  display: grid;
  gap: 1rem;
  max-width: 36rem;
  background: var(--panel);
  padding: 1.3rem 1.2rem;
}

.slider-wrap label { display: grid; gap: 0.35rem; font-weight: 700; }
.slider-wrap strong { color: var(--heat); }
.slider-wrap input[type="range"] { width: 100%; accent-color: var(--heat); }
.readout { color: var(--mute); margin: 0; }

.filters { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 0 0 1.1rem; }
.filters button {
  background: transparent;
  color: var(--paper);
  border: 1px solid rgba(244, 241, 236, 0.3);
  padding: 0.45rem 0.8rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.filters button.on { background: var(--heat); border-color: var(--heat); }

.kit-grid, .note-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1rem; }
.kit-grid article, .note-grid article { background: var(--panel); }
.kit-grid img { width: 100%; height: 180px; object-fit: cover; filter: saturate(0.85); }
.kit-grid h3, .kit-grid p, .note-grid h3, .note-grid p { padding: 0 0.95rem; }
.kit-grid h3, .note-grid h3 { margin-top: 0.85rem; }
.kit-grid p, .note-grid p { padding-bottom: 1rem; color: #d8d3cc; }

.lane ol { list-style: none; margin: 0; display: grid; gap: 0.75rem; }
.note-grid time { display: block; padding: 0.9rem 0.95rem 0; color: var(--heat); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700; }

.faq article { border-bottom: 1px solid rgba(244, 241, 236, 0.12); }
.faq button { width: 100%; text-align: left; background: none; border: 0; color: inherit; padding: 1rem 0; font: inherit; font-weight: 700; cursor: pointer; }
.faq p { display: none; margin: 0 0 1rem; max-width: 44rem; color: #d8d3cc; }
.faq article.open p { display: block; }

.desk { background: var(--panel); }
.desk-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
address { font-style: normal; margin: 1rem 0; }
form { display: grid; gap: 0.7rem; }
label { display: grid; gap: 0.3rem; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
input, select, textarea { font: inherit; text-transform: none; letter-spacing: 0; padding: 0.7rem; border: 1px solid rgba(244, 241, 236, 0.25); background: var(--void); color: var(--paper); }
.fine, .tiny { font-size: 0.8rem; color: var(--mute); }
.status { min-height: 1.2em; font-weight: 700; }

footer { padding: 2.2rem 1.3rem 2.5rem; background: #0b0b0d; color: var(--mute); }
footer a, footer .mark { color: var(--paper); }
footer .mark span { color: var(--heat); }

@media (max-width: 1180px) { .bar-mail { display: none; } }

@media (max-width: 980px) {
  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--panel);
    border-bottom: 1px solid var(--heat);
    flex-direction: column;
    padding: 0.85rem 1.2rem 1.1rem;
    z-index: 32;
  }
  nav.open { display: flex; }
  .menu { display: inline-block; margin-left: auto; min-width: 4.6rem; }
  .split, .desk-grid { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; text-align: center; }
}