/* ============================================================
   ROPE LEAD — design system
   One accent, one typeface, one rope. Everything else is quiet.
   ============================================================ */

:root {
  --bg: #f2eee5;          /* hemp */
  --bg-deep: #e9e3d5;
  --ink: #16130e;
  --ink-soft: #57503f;
  --accent: #c74e1d;      /* climbing-rope orange */
  --line: #d8d1bf;
  --font: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --gutter: clamp(1.25rem, 5vw, 6rem);
  --maxw: 72rem;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.125rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--bg); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

/* ---------- the rope canvas ---------- */

#rope {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
}

.rope-anchor { position: absolute; width: 1px; height: 1px; }

/* ---------- header ---------- */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem var(--gutter);
  mix-blend-mode: multiply;
}

/* blending over the accelerated canvas forces GPU read-backs on every
   frame — Android drivers crash under it. The wordmark/nav read fine
   without multiply on the hemp background. */
@media (pointer: coarse) {
  .site-header { mix-blend-mode: normal; }
}

.wordmark { text-decoration: none; }
.wordmark img { display: block; height: 2.4rem; width: auto; }

.footer-mark { margin: 0; }
.footer-mark img { display: block; width: min(18rem, 70vw); height: auto; }

.site-nav { display: flex; gap: 1.6rem; align-items: center; }

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 2px solid transparent;
  transition: border-color 160ms ease;
}

.site-nav a:hover { border-color: var(--accent); }

.site-nav .nav-cta {
  color: var(--accent);
  border-color: var(--accent);
  padding: 0.2rem 0.5rem;
}

.site-nav .nav-cta:hover { background: var(--accent); color: var(--bg); }

@media (max-width: 42rem) {
  .site-header {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
  }
  .site-nav {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.4rem 1rem;
  }
  .site-nav a { font-size: 0.78rem; }
}

/* ---------- shared section furniture ---------- */

main { position: relative; z-index: 1; }

section {
  position: relative;
  padding: clamp(6rem, 16vh, 12rem) var(--gutter);
  max-width: var(--maxw);
  margin: 0 auto;
}

.section-kicker {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.4rem;
}

.section-kicker::before {
  content: "";
  display: inline-block;
  width: 2.2rem;
  height: 2px;
  background: var(--accent);
  vertical-align: middle;
  margin-right: 0.8rem;
}

.section-title {
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 2.5rem;
  font-weight: 700;
}

.section-title em { font-style: normal; color: var(--accent); }

/* ---------- hero ---------- */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: none;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.hero-eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 1.5rem;
}

.hero-title {
  font-size: clamp(3rem, 10vw, 8.5rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 700;
  margin: 0 0 2.2rem;
  max-width: 14ch;
}

.hero-title em { font-style: normal; color: var(--accent); }

.hero-sub {
  max-width: 34rem;
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--ink-soft);
  margin: 0;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: var(--gutter);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
  animation: nudge 2.4s ease-in-out infinite;
}

@keyframes nudge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ---------- manifesto ---------- */

.manifesto { text-align: left; }

.manifesto-line {
  font-size: clamp(1.5rem, 3.4vw, 2.6rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-weight: 500;
  max-width: 26ch;
  margin: 0 0 1.6rem;
  color: var(--ink-soft);
}

.manifesto-line--strong { color: var(--ink); font-weight: 700; }

/* ---------- construction & hardware grids ---------- */

.construction-grid, .hardware-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

@media (max-width: 52rem) {
  .construction-grid, .hardware-grid { grid-template-columns: 1fr; }
}

.construction-copy p, .hardware-copy p {
  color: var(--ink-soft);
  max-width: 34rem;
}

.spec-list {
  margin: 2.2rem 0 0;
  border-top: 1px solid var(--line);
}

.spec {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
}

.spec dt {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-top: 0.15rem;
}

.spec dd { margin: 0; font-weight: 500; text-align: right; }

.splice-figure {
  margin: 0;
  min-height: 22rem;
  position: relative;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  display: flex;
  align-items: flex-end;
}

.splice-figure figcaption {
  padding: 1rem 1.2rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.splice-figure .rope-anchor { top: 40%; left: 50%; }

.carabiner-mount {
  position: relative;
  min-height: 26rem;
  background: var(--bg-deep);
  border: 1px solid var(--line);
}

.carabiner-mount .rope-anchor { top: 30%; left: 50%; }

/* ---------- proof ---------- */

.proof { max-width: 56rem; }

.proof-lede {
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  line-height: 1.45;
  max-width: 36rem;
  color: var(--ink-soft);
}

.counter {
  margin: 3.5rem 0 1.2rem;
  padding: 2.5rem 0;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.counter-value {
  font-size: clamp(4rem, 12vw, 9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.counter-label {
  font-size: 0.85rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.proof-note { font-size: 0.95rem; color: var(--ink-soft); }

/* ---------- reserve ---------- */

.reserve { padding-bottom: clamp(8rem, 20vh, 14rem); }

.reserve .rope-anchor { right: 20%; bottom: 5rem; }

@media (max-width: 42rem) {
  .reserve .rope-anchor { right: 28%; bottom: 4rem; }
}

.reserve-lede {
  max-width: 34rem;
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  color: var(--ink-soft);
}

.reserve-form {
  display: flex;
  gap: 0;
  margin: 2.5rem 0 1rem;
  max-width: 34rem;
  border: 2px solid var(--ink);
}

.reserve-form input {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 1.1rem 1.2rem;
  font: inherit;
  color: var(--ink);
  min-width: 0;
}

.reserve-form input:focus { outline: 2px solid var(--accent); outline-offset: -2px; }

.reserve-form button {
  border: 0;
  background: var(--ink);
  color: var(--bg);
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 1.1rem 1.6rem;
  cursor: pointer;
  transition: background 160ms ease;
  white-space: nowrap;
}

.reserve-form button:hover { background: var(--accent); }

.reserve-alt { font-size: 0.95rem; color: var(--ink-soft); }
.reserve-alt a { color: var(--accent); }

/* ---------- footer ---------- */

.site-footer {
  position: relative;
  z-index: 1;
  padding: 3rem var(--gutter) 2.5rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.footer-line { margin: 0; color: var(--ink-soft); }
.footer-small { margin: 0; font-size: 0.85rem; color: var(--ink-soft); }
.site-footer a { color: var(--accent); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ---------- motion preferences ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-scroll { animation: none; }
}