/* Stride. Chalk floor, iron type, one coral signal.
   Tokens follow TOKEN-PLAN.md. Derived tones documented in HANDOFF.md. */

:root {
  --chalk: #E9E4DA;
  --iron: #141816;
  --signal: #E24A2C;
  --signal-deep: #B03518;  /* AA-safe coral for button fills and small text */
  --slate: #4A5560;
  --tape: #C5C0B4;
  --mist: #A3ACB3;         /* muted text on iron */
  --display: "Barlow Condensed", sans-serif;
  --body: "Schibsted Grotesk", "Helvetica Neue", sans-serif;
  --nav-h: 64px;
}

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

html {
  color-scheme: light;
  scroll-padding-top: calc(var(--nav-h) + 1.5rem);
}

body {
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.55;
  background: var(--chalk);
  color: var(--iron);
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--signal); color: var(--chalk); }

img { display: block; max-width: 100%; height: auto; }

h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 0.98; }

/* Accessibility */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--iron);
  color: var(--chalk);
  padding: 0.75rem 1.25rem;
  z-index: 100;
}
.skip-link:focus { left: 0; }

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

/* Type */
.signal { color: var(--signal); }

h1 {
  font-size: clamp(3rem, 10vw, 5.5rem);
  font-weight: 800;
  letter-spacing: 0;
  max-width: 12ch;
}

h2 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  max-width: 18ch;
}

.section-head { margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.section-head p {
  margin-top: 1rem;
  color: var(--slate);
  max-width: 52ch;
}

/* Buttons: sharp, deep coral, chalk text. One booking label everywhere. */
.btn {
  display: inline-block;
  font-family: var(--body);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1;
  background: var(--signal-deep);
  color: var(--chalk);
  text-decoration: none;
  padding: 1rem 1.5rem;
  border: none;
  white-space: nowrap;
}
.btn:hover, .btn:focus-visible { background: #9C2E13; }
.btn:active { transform: translateY(1px); }

.link-secondary {
  font-weight: 700;
  color: var(--iron);
  text-decoration: underline;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}
.link-secondary:hover { color: var(--signal-deep); }

/* Nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 2rem;
  height: var(--nav-h);
  padding: 0 clamp(1rem, 4vw, 3rem);
  background: var(--chalk);
  border-bottom: 1px solid var(--tape);
}

.wordmark {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: 0.04em;
  color: var(--iron);
  text-decoration: none;
}
.wordmark-dot { color: var(--signal); }

.nav-links {
  display: flex;
  gap: 1.75rem;
  margin-left: auto;
}
.nav-links a {
  color: var(--iron);
  text-decoration: none;
  font-weight: 500;
}
.nav-links a:hover {
  text-decoration: underline;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.btn-nav { padding: 0.7rem 1.1rem; font-size: 0.9375rem; }

/* Hero */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(2.5rem, 7vh, 4.5rem) clamp(1rem, 4vw, 3rem) clamp(2.5rem, 6vh, 4rem);
  max-width: 1400px;
  margin: 0 auto;
}

.hero-sub {
  margin-top: 1.5rem;
  font-size: 1.1875rem;
  color: var(--slate);
  max-width: 46ch;
}

.hero-ctas {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* ROM arc signature */
.rom { max-width: 560px; justify-self: end; width: 100%; }

.rom-svg { width: 100%; height: auto; }

.rom-floor { stroke: var(--tape); stroke-width: 1.5; }
.rom-track { fill: none; stroke: var(--tape); stroke-width: 1.5; }
.rom-ticks line { stroke: var(--tape); stroke-width: 1.5; }
.rom-ticks-major line { stroke: var(--slate); stroke-width: 1.5; }
.rom-guide { stroke: var(--slate); stroke-width: 1.5; stroke-dasharray: 4 5; }
.rom-labels text {
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  fill: var(--slate);
}
.rom-achieved {
  fill: none;
  stroke: var(--signal);
  stroke-width: 5;
}
.rom-needle line { stroke: var(--iron); stroke-width: 3; }
.rom-pivot { fill: var(--iron); }
.rom-pivot-inner { fill: var(--chalk); }
.rom-chip rect { fill: var(--signal); }
.rom-chip text {
  font-family: var(--display);
  font-weight: 800;
  font-size: 24px;
  fill: var(--chalk);
}

figcaption {
  margin-top: 0.75rem;
  font-size: 0.9375rem;
  color: var(--slate);
}

/* Needle sweep + arc draw. One-shot, one sentence of motivation:
   the needle settling on the restored reading IS the hero thesis. */
.rom-needle {
  transform: rotate(-128deg);
  transform-origin: 280px 296px;
  transform-box: view-box;
}
.rom-achieved {
  stroke-dasharray: 528;
  stroke-dashoffset: 0;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }

  .rom-needle { animation: sweep 1.4s cubic-bezier(0.22, 1, 0.36, 1) both; }
  .rom-achieved { animation: draw 1.4s cubic-bezier(0.22, 1, 0.36, 1) both; }

  @keyframes sweep {
    from { transform: rotate(0deg); }
    to { transform: rotate(-128deg); }
  }
  @keyframes draw {
    from { stroke-dashoffset: 528; }
    to { stroke-dashoffset: 0; }
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* Ruler tick divider. Used once, echoes the measuring theme. */
.rule-ticks {
  height: 14px;
  margin: 0 clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid var(--tape);
  background: repeating-linear-gradient(90deg, var(--tape) 0 1px, transparent 1px 12px);
}

/* Sections */
section { padding: clamp(3.5rem, 9vw, 6.5rem) clamp(1rem, 4vw, 3rem); }

main > section,
.site-nav { max-width: 1400px; margin-left: auto; margin-right: auto; }

/* Conditions: asymmetric grid, hairline groups, no card soup */
.cond-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  grid-template-rows: auto auto;
  border-top: 2px solid var(--iron);
}

.cond {
  padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1rem, 2.5vw, 2rem) clamp(1.75rem, 3vw, 2.5rem);
  border-bottom: 1px solid var(--tape);
}

.cond h3 {
  font-size: clamp(1.9rem, 3.5vw, 2.6rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.cond p { margin-top: 0.9rem; max-width: 46ch; }

.cond-detail {
  color: var(--slate);
  font-size: 0.9375rem;
  border-left: 3px solid var(--signal);
  padding-left: 0.9rem;
}

.cond-knee {
  grid-row: 1 / 3;
  border-right: 1px solid var(--tape);
  padding-right: clamp(1.5rem, 4vw, 3rem);
}
.cond-knee p { max-width: 40ch; }
.cond-shoulder { border-right: 1px solid var(--tape); }
.cond-shoulder p, .cond-spine p { margin-top: 0.6rem; }

.cond-desk {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  border-bottom: 2px solid var(--iron);
  padding-right: 0;
}
.cond-desk img { width: 100%; filter: grayscale(1) contrast(1.05); }

/* Steps: uneven columns, big verbs */
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: 1.25fr 1.1fr 0.85fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  border-top: 2px solid var(--iron);
  counter-reset: none;
}

.step { border-top: 1px solid transparent; }
.step h3 {
  font-size: clamp(2.4rem, 4.5vw, 3.2rem);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--iron);
}
.step h3::after {
  content: "";
  display: block;
  width: 2.25rem;
  height: 5px;
  margin-top: 0.6rem;
  background: var(--signal);
}
.step p { margin-top: 1rem; max-width: 34ch; }
.step-detail {
  margin-top: 0.75rem;
  font-size: 0.9375rem;
  color: var(--slate);
  text-transform: uppercase;
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: 0.06em;
}

/* Quote */
.quote { max-width: 900px; }
.quote blockquote p {
  font-size: clamp(1.4rem, 2.6vw, 1.8rem);
  line-height: 1.35;
  font-style: italic;
  max-width: 34ch;
}
.quote footer {
  margin-top: 1.25rem;
  font-size: 0.9375rem;
  color: var(--slate);
  font-style: normal;
}

/* Team strip */
.team-strip {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
.team-strip img {
  width: 100%;
  filter: grayscale(1) contrast(1.05);
  border-bottom: 4px solid var(--signal);
}
.team-strip h3 {
  margin-top: 1.1rem;
  font-size: 1.5rem;
  font-weight: 800;
  text-transform: uppercase;
}
.team-strip p {
  margin-top: 0.4rem;
  font-size: 0.9375rem;
  color: var(--slate);
  max-width: 30ch;
}

/* Book band: the one dark block, deliberate, page ends in iron */
.book {
  background: var(--iron);
  color: var(--chalk);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}
.book h2 { color: var(--chalk); max-width: none; }
.book-sub {
  margin-top: 1rem;
  color: var(--mist);
  max-width: 52ch;
}
.book .btn { margin-top: 2rem; }
.book .btn:hover, .book .btn:focus-visible { background: var(--signal); color: var(--iron); }

.book-details {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: 2rem;
  border-top: 1px solid #2E3632;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.book-details h3 {
  font-size: 1.1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--mist);
  font-family: var(--body);
}
.book-details p { margin-top: 0.5rem; }
.book-details a {
  color: var(--chalk);
  text-decoration: underline;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}
.book-details a:hover { color: var(--signal); }

/* Footer (contiguous with book band, page ends dark) */
.site-footer {
  background: var(--iron);
  color: var(--mist);
  padding: 1.5rem clamp(1rem, 4vw, 3rem) 2.5rem;
  display: flex;
  align-items: baseline;
  gap: 2rem;
  flex-wrap: wrap;
  border-top: 1px solid #2E3632;
}
.footer-wordmark {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.04em;
  color: var(--chalk);
}
.footer-small { font-size: 0.875rem; max-width: 60ch; }
.footer-top {
  margin-left: auto;
  color: var(--mist);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-size: 0.9375rem;
}
.footer-top:hover { color: var(--chalk); }

/* Mobile collapse */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .btn-nav { margin-left: auto; }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 2.5rem;
  }
  .rom { justify-self: start; }

  .cond-grid { grid-template-columns: 1fr; }
  .cond-knee { grid-row: auto; border-right: none; padding-right: 0; }
  .cond-shoulder { border-right: none; }
  .cond-desk { grid-template-columns: 1fr; padding-right: 0; }

  .steps { grid-template-columns: 1fr; }
  .step p { max-width: none; }

  .team-strip {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .book-details { grid-template-columns: 1fr; }
  .footer-top { margin-left: 0; }
}

@media (max-width: 480px) {
  body { font-size: 1rem; }
  .btn { width: 100%; text-align: center; }
  .link-secondary { width: 100%; text-align: center; }
  .hero-ctas { gap: 1rem; }
}