/* ═══════════════════════════════════════════════════════════════
   OLDCARTS CONSULTING — "THE DIAGNOSTIC PRACTICE"
   Palette: ink (examination room) / bone (porcelain) /
            pulse (arterial coral) / sage (surgical green)
   Type:    Fraunces VF (display) · Instrument Sans VF (text) ·
            Fragment Mono (clinical labels)
   ═══════════════════════════════════════════════════════════════ */

/* ── Fonts ─────────────────────────────────────────────────── */
@font-face {
  font-family: 'Fraunces';
  src: url('/assets/fonts/fraunces-latin-full-normal.woff2') format('woff2');
  font-weight: 100 900; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Fraunces';
  src: url('/assets/fonts/fraunces-latin-full-italic.woff2') format('woff2');
  font-weight: 100 900; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'Instrument Sans';
  src: url('/assets/fonts/instrument-sans-latin-wght-normal.woff2') format('woff2');
  font-weight: 400 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Instrument Sans';
  src: url('/assets/fonts/instrument-sans-latin-wght-italic.woff2') format('woff2');
  font-weight: 400 700; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'Fragment Mono';
  src: url('/assets/fonts/fragment-mono-latin-400-normal.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Fragment Mono';
  src: url('/assets/fonts/fragment-mono-latin-400-italic.woff2') format('woff2');
  font-weight: 400; font-style: italic; font-display: swap;
}

/* ── Tokens ────────────────────────────────────────────────── */
:root {
  --ink:      #0A0F0D;
  --ink-2:    #0E1512;
  --ink-3:    #142019;
  --bone:     #EDE7DB;
  --bone-dim: #96A198;
  --line:     rgba(237, 231, 219, 0.13);
  --line-soft:rgba(237, 231, 219, 0.07);
  --pulse:    #FF5C42;
  --pulse-dim:rgba(255, 92, 66, 0.35);
  --pulse-bg: rgba(255, 92, 66, 0.08);
  --sage:     #8FB8A5;
  --sage-dim: rgba(143, 184, 165, 0.4);

  --font-display: 'Fraunces', 'Georgia', serif;
  --font-text: 'Instrument Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'Fragment Mono', 'SFMono-Regular', monospace;

  --gutter: clamp(1.25rem, 4vw, 4rem);
  --hud-h: 3.5rem;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-inout: cubic-bezier(0.83, 0, 0.17, 1);
}

/* ── Reset / base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html.lenis { height: auto; scroll-behavior: auto; }
.lenis.lenis-smooth { scroll-behavior: auto; }

body {
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-text);
  font-weight: 420;
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
/* subtle exam-room texture: faint grid + vignette */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, black 0%, transparent 100%);
  opacity: .5;
}

::selection { background: var(--pulse); color: var(--ink); }

a { color: inherit; text-decoration: none; }
em { font-style: italic; }
.mono {
  font-family: var(--font-mono);
  font-size: 0.72em;
  letter-spacing: 0.08em;
}

.skip-link {
  position: fixed; top: -100%; left: 1rem; z-index: 300;
  background: var(--pulse); color: var(--ink);
  padding: .6rem 1rem; font-family: var(--font-mono); font-size: .8rem;
  transition: top .2s;
}
.skip-link:focus { top: 1rem; }

:focus-visible {
  outline: 1.5px solid var(--pulse);
  outline-offset: 3px;
}

/* ═══════════════════════════════════════════════════════════
   PRELOADER
   ═══════════════════════════════════════════════════════════ */
.preloader {
  position: fixed; inset: 0; z-index: 200;
  background: var(--ink);
  display: none; place-items: center;
  color: var(--pulse);
}
.js .preloader { display: grid; }
.preloader__inner { width: min(320px, 70vw); }
.preloader__ecg { width: 100%; overflow: visible; }
#preloader-trace {
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  filter: drop-shadow(0 0 6px var(--pulse-dim));
}
.preloader__row {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-top: 1rem;
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em;
  color: var(--bone-dim);
}
.preloader__pct { color: var(--bone); font-size: .85rem; }

/* ═══════════════════════════════════════════════════════════
   CURSOR
   ═══════════════════════════════════════════════════════════ */
.cursor { display: none; position: fixed; top: 0; left: 0; z-index: 190; pointer-events: none; }
.js .cursor { display: block; }
@media (hover: none), (pointer: coarse) { .cursor { display: none; } }
.cursor__ring {
  position: absolute; top: 0; left: 0;
  width: 34px; height: 34px;
  translate: -50% -50%;
  border: 1px solid var(--bone-dim);
  border-radius: 50%;
  transition: width .35s var(--ease-out), height .35s var(--ease-out),
              border-color .35s, background-color .35s, opacity .3s;
}
/* crosshair ticks */
.cursor__ring::before, .cursor__ring::after {
  content: ''; position: absolute; background: var(--bone-dim);
  transition: opacity .3s;
}
.cursor__ring::before { left: 50%; top: -7px; width: 1px; height: 5px; translate: -50%; box-shadow: 0 41px 0 var(--bone-dim); }
.cursor__ring::after  { top: 50%; left: -7px; height: 1px; width: 5px; translate: 0 -50%; box-shadow: 41px 0 0 var(--bone-dim); }
.cursor__dot {
  position: absolute; top: 0; left: 0;
  width: 4px; height: 4px; translate: -50% -50%;
  background: var(--pulse); border-radius: 50%;
}
.cursor__label {
  position: absolute; top: 22px; left: 14px;
  font-family: var(--font-mono); font-size: .58rem; letter-spacing: .12em;
  color: var(--pulse); white-space: nowrap;
  opacity: 0; transition: opacity .25s;
}
.cursor.is-hover .cursor__ring {
  width: 56px; height: 56px;
  border-color: var(--pulse);
  background: var(--pulse-bg);
}
.cursor.is-hover .cursor__ring::before,
.cursor.is-hover .cursor__ring::after { opacity: 0; }
.cursor.has-label .cursor__label { opacity: 1; }
.cursor.is-down .cursor__ring { width: 26px; height: 26px; }

/* ═══════════════════════════════════════════════════════════
   HUD
   ═══════════════════════════════════════════════════════════ */
.hud {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: transform .5s var(--ease-out), background-color .4s;
}
.hud.is-scrolled { background: color-mix(in srgb, var(--ink) 82%, transparent); backdrop-filter: blur(14px); }
.hud__bar {
  display: flex; align-items: center; gap: 2rem;
  height: var(--hud-h);
  padding: 0 var(--gutter);
  border-bottom: 1px solid var(--line-soft);
}
.hud__mark {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-mono); font-size: .82rem; letter-spacing: .18em;
}
.hud__mark sup { font-size: .5em; letter-spacing: 0; }
.hud__pulse-icon { width: 30px; color: var(--pulse); flex: none; }
.hud__readouts {
  display: flex; gap: 1.75rem; margin-left: auto;
  font-family: var(--font-mono); font-size: .6rem; letter-spacing: .1em;
  color: var(--bone-dim);
}
.hud__readout em { font-style: normal; color: color-mix(in srgb, var(--bone-dim) 55%, transparent); margin-right: .35em; }
.hud__readout--pulse { color: var(--pulse); }
.hud__beat {
  display: inline-block; width: 5px; height: 5px; border-radius: 50%;
  background: var(--pulse); margin-left: .25em; vertical-align: 1px;
}
.hud__nav { display: flex; gap: 1.6rem; align-items: center; font-size: .82rem; font-weight: 500; letter-spacing: .02em; }
.hud__nav a { position: relative; padding: .3rem 0; color: var(--bone-dim); transition: color .3s; }
.hud__nav a:hover { color: var(--bone); }
.hud__nav a::after {
  content: ''; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--pulse);
  transition: right .35s var(--ease-out);
}
.hud__nav a:hover::after { right: 0; }
.hud__nav .hud__cta {
  color: var(--ink); background: var(--bone);
  padding: .45rem 1rem; border-radius: 999px; font-weight: 600;
  transition: background .3s, color .3s;
}
.hud__nav .hud__cta:hover { background: var(--pulse); color: var(--ink); }
.hud__nav .hud__cta::after { display: none; }
.hud__menu-btn {
  display: none;
  background: none; border: 0; color: var(--bone);
  font-family: var(--font-mono); font-size: .65rem; letter-spacing: .18em;
  align-items: center; gap: .6rem; cursor: pointer; padding: .5rem 0;
}
.hud__menu-lines { display: inline-flex; flex-direction: column; gap: 5px; }
.hud__menu-lines i { width: 26px; height: 1.5px; background: var(--bone); transition: transform .4s var(--ease-inout), width .3s; }
.hud__menu-btn[aria-expanded="true"] .hud__menu-lines i:first-child { transform: translateY(3.25px) rotate(45deg); }
.hud__menu-btn[aria-expanded="true"] .hud__menu-lines i:last-child { transform: translateY(-3.25px) rotate(-45deg); }
.hud__progress { height: 1px; background: transparent; }
.hud__progress-fill {
  height: 100%; width: 100%;
  background: linear-gradient(90deg, var(--pulse), var(--sage));
  transform-origin: left; transform: scaleX(0);
}

@media (max-width: 1080px) {
  .hud__readouts { display: none; }
}
@media (max-width: 760px) {
  .hud__nav { display: none; }
  .hud__menu-btn { display: inline-flex; margin-left: auto; }
}

/* ═══════════════════════════════════════════════════════════
   OVERLAY MENU
   ═══════════════════════════════════════════════════════════ */
.menu {
  position: fixed; inset: 0; z-index: 90;
  display: flex; flex-direction: column; justify-content: center;
  padding: var(--gutter);
  visibility: hidden; pointer-events: none;
}
.menu.is-open { visibility: visible; pointer-events: auto; }
.menu__bg {
  position: absolute; inset: 0;
  background: color-mix(in srgb, var(--ink-2) 96%, var(--pulse));
  clip-path: inset(0 0 100% 0);
  transition: clip-path .7s var(--ease-inout);
}
.menu.is-open .menu__bg { clip-path: inset(0 0 0% 0); }
.menu__nav { position: relative; display: flex; flex-direction: column; gap: .25rem; }
.menu__nav a {
  display: flex; align-items: baseline; gap: 1.25rem;
  padding: .55rem 0;
  border-bottom: 1px solid var(--line-soft);
  opacity: 0; translate: 0 30px;
  transition: opacity .5s var(--ease-out), translate .5s var(--ease-out);
}
.menu.is-open .menu__nav a { opacity: 1; translate: 0 0; }
.menu__num { font-family: var(--font-mono); font-size: .7rem; color: var(--pulse); }
.menu__word {
  font-family: var(--font-display); font-size: clamp(2rem, 8vw, 3.2rem);
  font-weight: 380; letter-spacing: -0.02em; line-height: 1.1;
  font-variation-settings: 'opsz' 60;
}
.menu__guide .menu__word { font-style: italic; font-size: clamp(1.3rem, 5vw, 1.8rem); color: var(--sage); }
.menu__foot {
  position: relative; display: flex; flex-direction: column; gap: .4rem;
  margin-top: 2.5rem; font-family: var(--font-mono); font-size: .78rem;
  color: var(--bone-dim);
}

/* ═══════════════════════════════════════════════════════════
   SHARED — sections, headers, buttons
   ═══════════════════════════════════════════════════════════ */
main { position: relative; z-index: 1; }
section { padding: clamp(6rem, 12vh, 10rem) var(--gutter); position: relative; }

.section-head { max-width: 62rem; margin-bottom: clamp(3rem, 7vh, 5.5rem); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head__num {
  display: inline-block;
  color: var(--pulse);
  font-size: .68rem;
  margin-bottom: 1.4rem;
  padding: .35rem .7rem;
  border: 1px solid var(--pulse-dim);
  border-radius: 999px;
}
.section-head__title {
  font-family: var(--font-display);
  font-weight: 340;
  font-size: clamp(2rem, 4.6vw, 3.9rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
  font-variation-settings: 'opsz' 90;
  text-wrap: balance;
}
.section-head__title em { font-variation-settings: 'opsz' 90, 'SOFT' 60; color: var(--sage); }
.section-head__note {
  margin-top: 1.5rem; max-width: 44rem;
  color: var(--bone-dim); font-size: 1.02rem;
}

.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  padding: .95rem 1.9rem;
  border-radius: 999px;
  font-size: .92rem; font-weight: 560; letter-spacing: .01em;
  overflow: hidden;
  transition: color .35s var(--ease-out), border-color .35s, transform .1s;
  will-change: transform;
}
.btn--lg { padding: 1.15rem 2.3rem; font-size: 1rem; }
.btn--solid { background: var(--bone); color: var(--ink); }
.btn--ghost { border: 1px solid var(--line); color: var(--bone); }
.btn::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: var(--pulse);
  border-radius: inherit;
  scale: 0 1; transform-origin: right;
  transition: scale .45s var(--ease-inout);
}
.btn:hover::before { scale: 1 1; transform-origin: left; }
.btn--solid:hover { color: var(--ink); }
.btn--ghost:hover { color: var(--ink); border-color: var(--pulse); }
.btn > * { position: relative; }

/* reveal states are applied by JS so the site degrades gracefully without it */
.js [data-reveal] { opacity: 0; translate: 0 34px; }

/* ═══════════════════════════════════════════════════════════
   00 — HERO
   ═══════════════════════════════════════════════════════════ */
.hero {
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding-top: calc(var(--hud-h) + 4rem);
  padding-bottom: 6.5rem;
}
.hero__canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: -2;
}
.hero__vignette {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse 70% 55% at 68% 42%, transparent 0%, var(--ink) 78%),
    linear-gradient(to top, var(--ink) 0%, transparent 22%);
}
.hero__content { max-width: 74rem; }
.hero__eyebrow {
  color: var(--bone-dim); font-size: .68rem;
  margin-bottom: 2.2rem;
}
.hero__eyebrow .tick { color: var(--pulse); margin-right: .6em; }
.hero__title {
  font-family: var(--font-display);
  font-weight: 310;
  font-size: clamp(2.9rem, 9.2vw, 8rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-variation-settings: 'opsz' 144;
  margin-bottom: 2.2rem;
}
.hero__line {
  display: block; overflow: hidden;
  /* room for Fraunces descenders inside the reveal mask */
  padding-bottom: .14em; margin-bottom: -.14em;
}
.hero__line--answer em { color: var(--sage); font-weight: 340; }
.hero__title .wonk { font-variation-settings: 'opsz' 144, 'WONK' 1, 'SOFT' 40; }
.pulse-dot { color: var(--pulse); font-style: normal; }
.hero__sub {
  max-width: 34rem;
  color: var(--bone-dim);
  font-size: clamp(1.02rem, 1.4vw, 1.2rem);
  margin-bottom: 2.6rem;
}
.hero__sub em { color: var(--bone); }
.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero__annot {
  position: absolute;
  right: clamp(2rem, 6vw, 6rem);
  top: 20%;
  display: flex; flex-direction: column; align-items: flex-start; gap: .7rem;
  color: var(--bone-dim);
  font-size: .58rem; letter-spacing: .14em; line-height: 1.9;
}
.hero__annot-line {
  width: 1px; height: 74px;
  background: linear-gradient(to bottom, transparent, var(--bone-dim));
  margin-left: 2px;
}
.hero__annot-text em { font-style: normal; color: var(--pulse); }
@media (max-width: 1180px) { .hero__annot { display: none; } }

.hero__vitals {
  position: absolute; left: var(--gutter); right: var(--gutter); bottom: 2rem;
  display: flex; align-items: flex-end; gap: clamp(1.5rem, 4vw, 4rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-soft);
  color: var(--bone-dim); font-size: .62rem; letter-spacing: .12em;
}
.vital { display: flex; flex-direction: column; gap: .55rem; }
.vital__key { color: color-mix(in srgb, var(--bone-dim) 65%, transparent); }
.vital__val { color: var(--bone); font-size: .95rem; }
.vital__ecg { display: block; }
.vital--scroll { margin-left: auto; align-items: center; }
.vital__scroll-ind {
  width: 1px; height: 34px; background: var(--line);
  position: relative; overflow: hidden;
}
.vital__scroll-ind i {
  position: absolute; left: 0; top: -40%; width: 100%; height: 40%;
  background: var(--pulse);
  animation: scrollhint 1.8s var(--ease-inout) infinite;
}
@keyframes scrollhint { 0% { top: -40%; } 60%, 100% { top: 110%; } }
@media (max-width: 900px) {
  .vital:nth-child(3) { display: none; }
}
@media (max-width: 620px) {
  .vital:nth-child(2) { display: none; }
  .hero__vitals { gap: 1.25rem; }
}

/* ═══════════════════════════════════════════════════════════
   MARQUEE
   ═══════════════════════════════════════════════════════════ */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line-soft);
  padding: 1.1rem 0;
  background: var(--ink-2);
}
.marquee__track { display: flex; width: max-content; will-change: transform; }
.marquee__seg {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.6vw, 2rem);
  font-weight: 330; font-style: italic;
  letter-spacing: 0;
  white-space: nowrap;
  color: var(--bone-dim);
  padding-right: .5em;
}
.marquee__glyph { font-style: normal; color: var(--pulse); font-size: .7em; vertical-align: .18em; padding: 0 .8em; }

/* ═══════════════════════════════════════════════════════════
   01 — METHOD (the instrument)
   ═══════════════════════════════════════════════════════════ */
.method { background: var(--ink); }
.method__hint { display: block; margin-top: 1rem; color: var(--pulse); font-size: .62rem; letter-spacing: .16em; }

.method__frame { position: relative; padding: 10px; }
.method__frame::before, .method__frame::after,
.method__frame > .tickbr::before, .method__frame > .tickbr::after {
  content: ''; position: absolute; width: 14px; height: 14px;
  border-color: var(--pulse-dim); border-style: solid;
}
.method__frame::before { top: 0; left: 0; border-width: 1.5px 0 0 1.5px; }
.method__frame::after { top: 0; right: 0; border-width: 1.5px 1.5px 0 0; }
.method__frame > .tickbr::before { bottom: 0; left: 0; border-width: 0 0 1.5px 1.5px; }
.method__frame > .tickbr::after { bottom: 0; right: 0; border-width: 0 1.5px 1.5px 0; }
.method__instrument {
  display: flex;
  min-height: 34rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--ink-2);
}
.slat {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  border-right: 1px solid var(--line-soft);
  cursor: pointer;
  transition: flex-grow .65s var(--ease-inout), background-color .5s;
  overflow: hidden;
  display: flex;
}
.slat:last-child { border-right: 0; }
.slat.is-active { flex-grow: 7; background: var(--ink-3); }
.slat__spine {
  flex: none;
  width: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: space-between;
  padding: 1.6rem 0;
  transition: color .4s;
}
.slat.is-active .slat__spine { width: 5.5rem; }
.slat__letter {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  font-weight: 320;
  font-variation-settings: 'opsz' 100;
  line-height: 1;
  transition: color .45s, font-variation-settings .45s;
  color: var(--bone-dim);
}
.slat:hover .slat__letter, .slat.is-active .slat__letter { color: var(--pulse); font-variation-settings: 'opsz' 100, 'SOFT' 80; }
.slat__term {
  writing-mode: vertical-rl;
  font-size: .6rem; letter-spacing: .3em;
  color: var(--bone-dim);
}
.slat__body {
  position: absolute; inset: 0 0 0 5.5rem;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 2.4rem;
  opacity: 0; translate: 24px 0;
  transition: opacity .45s .12s, translate .55s .12s var(--ease-out);
  pointer-events: none;
}
.slat__body::before {
  content: attr(data-letter);
  position: absolute; top: -0.18em; right: 1.5rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(11rem, 22vw, 20rem);
  font-weight: 300;
  font-variation-settings: 'opsz' 144, 'SOFT' 100;
  line-height: 1;
  color: var(--bone);
  opacity: .045;
  pointer-events: none;
}
.slat.is-active .slat__body { opacity: 1; translate: 0 0; pointer-events: auto; }
.slat__q {
  font-family: var(--font-display);
  font-weight: 330;
  font-size: clamp(1.6rem, 2.6vw, 2.5rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 1rem;
  color: var(--bone);
}
.slat__a { max-width: 34rem; color: var(--bone-dim); font-size: 1rem; }
.slat__ref { margin-top: 1.6rem; color: var(--pulse); font-size: .6rem; letter-spacing: .2em; }
/* scan line on active slat */
.slat::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 47%, rgba(255,92,66,.045) 50%, transparent 53%);
  background-size: 100% 300%;
  opacity: 0; transition: opacity .4s;
  pointer-events: none;
}
.slat.is-active::after { opacity: 1; animation: scan 3.2s linear infinite; }
@keyframes scan { 0% { background-position: 0 130%; } 100% { background-position: 0 -30%; } }

@media (max-width: 900px) {
  .method__instrument { flex-direction: column; min-height: 0; }
  .slat { flex-direction: column; border-right: 0; border-bottom: 1px solid var(--line-soft); flex: none; transition: none; }
  .slat:last-child { border-bottom: 0; }
  .slat__spine {
    flex-direction: row; justify-content: flex-start; align-items: center;
    gap: 1.1rem; padding: 1.1rem 1.25rem; width: 100% !important;
  }
  .slat__letter { font-size: 1.9rem; width: 2.4rem; }
  .slat__term { writing-mode: horizontal-tb; letter-spacing: .24em; font-size: .62rem; }
  .slat__body {
    position: static; inset: auto;
    max-height: 0; padding: 0 1.25rem;
    opacity: 0; translate: 0;
    transition: max-height .5s var(--ease-inout), opacity .4s, padding .5s;
    overflow: hidden;
  }
  .slat.is-active .slat__body { max-height: 22rem; padding: 0 1.25rem 1.5rem; opacity: 1; }
  .slat__q { font-size: 1.25rem; }
  .slat__a { font-size: .95rem; }
  .slat.is-active::after { display: none; }
}

.method__exam { margin-top: 1.6rem; text-align: right; }
.method__exam a {
  font-size: .64rem; letter-spacing: .16em;
  color: var(--bone-dim);
  border-bottom: 1px solid var(--line);
  padding-bottom: .3rem;
  transition: color .3s, border-color .3s;
}
.method__exam a:hover { color: var(--pulse); border-color: var(--pulse); }
.method__exam .tick { color: var(--pulse); margin-right: .5em; }

/* ═══════════════════════════════════════════════════════════
   02 — COURSE OF CARE
   ═══════════════════════════════════════════════════════════ */
.care { background: var(--ink-2); border-block: 1px solid var(--line-soft); }
@media (min-width: 861px) {
  .care__pin {
    min-height: 100svh;
    display: flex; flex-direction: column; justify-content: center;
    padding-top: var(--hud-h);
  }
  .care { padding-block: 0; }
}
.care__chart { position: relative; max-width: 80rem; margin-inline: auto; }
.care__ecg {
  position: absolute; left: 0; right: 0; top: 0;
  width: 100%; height: clamp(120px, 18vw, 220px);
  color: var(--pulse);
  overflow: visible;
}
#care-trace { filter: drop-shadow(0 0 8px var(--pulse-dim)); }
.care__stages {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: clamp(1rem, 2.5vw, 2.5rem);
  padding-top: clamp(140px, 20vw, 250px);
}
/* unlit stages dim without failing WCAG contrast: headings/copy stay ≥4.5:1 */
.care__stage { position: relative; }
.care__stage h3 { opacity: .62; transition: opacity .5s; }
.care__stage p { opacity: .8; transition: opacity .5s; }
.care__stage .care__node, .care__stage .care__num { transition: opacity .5s; opacity: .85; }
.care__stage.is-lit h3, .care__stage.is-lit p,
.care__stage.is-lit .care__num, .care__stage.is-lit .care__node { opacity: 1; }
.care__node {
  position: absolute; top: calc(-1 * clamp(28px, 4vw, 45px)); left: 0;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--ink); border: 1.5px solid var(--bone-dim);
  transition: background .4s, border-color .4s, box-shadow .4s;
}
.care__stage.is-lit .care__node {
  background: var(--pulse); border-color: var(--pulse);
  box-shadow: 0 0 14px var(--pulse-dim);
}
.care__num { display: block; color: var(--pulse); font-size: .62rem; margin-bottom: .7rem; letter-spacing: .18em; }
.care__num i { font-style: normal; color: var(--bone-dim); }
.care__stage h3 {
  font-family: var(--font-display); font-weight: 380;
  font-size: clamp(1.15rem, 1.9vw, 1.6rem);
  letter-spacing: -0.015em;
  margin-bottom: .6rem;
}
.care__stage p { color: var(--bone-dim); font-size: .92rem; line-height: 1.55; }

@media (max-width: 860px) {
  .care__stages { grid-template-columns: 1fr 1fr; padding-top: 2rem; row-gap: 2.5rem; }
  .care__ecg { position: static; margin-bottom: 1.5rem; height: 90px; }
  .care__node { display: none; }
}
@media (max-width: 520px) {
  .care__stages { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════
   03 — PROTOCOLS
   ═══════════════════════════════════════════════════════════ */
.protocols__list { border-top: 1px solid var(--line); }
.protocol {
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: background-color .4s;
}
.protocol:hover { background: var(--ink-2); }
.protocol__head {
  display: grid;
  grid-template-columns: 7rem 1fr 2.5rem;
  grid-template-areas: "num name toggle" "num gist toggle";
  align-items: baseline;
  column-gap: 2rem;
  padding: 2.4rem clamp(.5rem, 2vw, 2rem);
}
.protocol__num { grid-area: num; color: var(--pulse); font-size: .68rem; letter-spacing: .16em; }
.protocol__name {
  grid-area: name;
  font-family: var(--font-display); font-weight: 330;
  font-size: clamp(1.6rem, 3.4vw, 2.9rem);
  letter-spacing: -0.02em; line-height: 1.05;
  transition: translate .5s var(--ease-out), color .4s;
}
.protocol__name em { color: var(--sage); }
.protocol:hover .protocol__name { translate: 12px 0; }
.protocol__gist { grid-area: gist; color: var(--bone-dim); margin-top: .7rem; max-width: 40rem; font-size: .98rem; }
.protocol__toggle {
  grid-area: toggle; align-self: center; justify-self: end;
  position: relative; width: 2.2rem; height: 2.2rem;
  border: 1px solid var(--line); border-radius: 50%;
  transition: border-color .4s, background .4s, rotate .5s var(--ease-inout);
}
.protocol__toggle::before, .protocol__toggle::after {
  content: ''; position: absolute; top: 50%; left: 50%;
  background: var(--bone); translate: -50% -50%;
  transition: rotate .5s var(--ease-inout), background .4s;
}
.protocol__toggle::before { width: 11px; height: 1.5px; }
.protocol__toggle::after { width: 1.5px; height: 11px; }
.protocol.is-open .protocol__toggle { rotate: 135deg; border-color: var(--pulse); background: var(--pulse-bg); }
.protocol__body {
  max-height: 0; overflow: hidden;
  padding: 0 clamp(.5rem, 2vw, 2rem) 0 calc(7rem + 2rem);
  transition: max-height .65s var(--ease-inout), padding-bottom .65s var(--ease-inout);
}
.protocol.is-open .protocol__body { max-height: 40rem; padding-bottom: 2.8rem; }
.protocol__body > p { max-width: 42rem; color: var(--bone-dim); margin-bottom: 1.5rem; }
.protocol__rx {
  list-style: none;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: .6rem 2rem;
  max-width: 52rem;
  font-size: .68rem; letter-spacing: .1em;
  color: var(--bone);
}
.protocol__rx li {
  padding-left: 1.2rem; position: relative; line-height: 1.9;
  opacity: 0; translate: 0 10px;
  transition: opacity .5s var(--ease-out), translate .5s var(--ease-out);
}
.protocol.is-open .protocol__rx li { opacity: 1; translate: 0 0; }
.protocol__rx li::before { content: '✚'; position: absolute; left: 0; color: var(--pulse); font-size: .85em; }

@media (max-width: 760px) {
  .protocol__head { grid-template-columns: 1fr 2.2rem; grid-template-areas: "num toggle" "name toggle" "gist toggle"; row-gap: .3rem; }
  .protocol__body { padding-left: clamp(.5rem, 2vw, 2rem); }
  .protocol:hover .protocol__name { translate: 0; }
}

/* hover preview panel */
.preview {
  position: fixed; z-index: 80; top: 0; left: 0;
  width: 300px; height: 200px;
  pointer-events: none;
  opacity: 0; scale: .85;
  transition: opacity .35s var(--ease-out), scale .45s var(--ease-out);
  border-radius: 4px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.65);
}
.preview.is-visible { opacity: 1; scale: 1; }
.preview canvas { display: block; width: 100%; height: 100%; }
.preview__tag {
  position: absolute; left: .8rem; bottom: .6rem;
  font-family: var(--font-mono); font-size: .55rem; letter-spacing: .18em;
  color: var(--bone);
  text-shadow: 0 1px 8px rgba(0,0,0,.5);
}
@media (hover: none), (pointer: coarse) { .preview { display: none; } }

/* dosage */
.dosage { margin-top: clamp(3.5rem, 7vh, 6rem); }
.dosage__label {
  display: block; color: var(--pulse); font-size: .68rem; letter-spacing: .18em;
  margin-bottom: 1.6rem;
}
.dosage__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 4px; overflow: hidden; }
.dosage__card {
  background: var(--ink-2);
  padding: 2.2rem 1.9rem 1.9rem;
  display: flex; flex-direction: column; gap: .7rem;
  transition: background .4s;
}
.dosage__card:hover { background: var(--ink-3); }
.dosage__card--featured { background: color-mix(in srgb, var(--ink-3) 88%, var(--pulse)); }
.dosage__name { font-family: var(--font-display); font-size: 1.35rem; font-weight: 370; letter-spacing: -0.01em; }
.dosage__price { font-family: var(--font-display); font-size: clamp(1.7rem, 2.6vw, 2.3rem); font-weight: 320; letter-spacing: -0.02em; color: var(--bone); }
.dosage__price em { font-size: .5em; color: var(--bone-dim); font-style: italic; }
.dosage__note { color: var(--bone-dim); font-size: .58rem; letter-spacing: .16em; margin-top: auto; }
@media (max-width: 800px) { .dosage__grid { grid-template-columns: 1fr; } }

/* ═══════════════════════════════════════════════════════════
   04 — PRACTITIONER
   ═══════════════════════════════════════════════════════════ */
.practitioner { background: var(--ink-2); border-block: 1px solid var(--line-soft); }
.practitioner__quote-wrap { padding: clamp(1rem, 4vh, 3rem) 0 clamp(4rem, 9vh, 7rem); }
.practitioner__quote {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 5.6vw, 4.8rem);
  line-height: 1.08;
  letter-spacing: -0.028em;
  text-align: center;
  max-width: 60rem; margin-inline: auto;
  font-variation-settings: 'opsz' 144;
}
.practitioner__quote em { color: var(--pulse); font-variation-settings: 'opsz' 144, 'SOFT' 70; }
.practitioner__grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  max-width: 78rem; margin-inline: auto;
  align-items: start;
}
.practitioner__specimen {
  position: sticky; top: calc(var(--hud-h) + 2rem);
  border: 1px solid var(--line); border-radius: 4px;
  background: var(--ink);
  padding: 1rem 1rem 3rem;
}
.practitioner__specimen canvas { width: 100%; height: auto; display: block; }
.practitioner__specimen-cap {
  position: absolute; left: 1.25rem; bottom: 1.1rem;
  font-size: .58rem; letter-spacing: .16em; color: var(--bone-dim);
}
.practitioner__name {
  font-family: var(--font-display); font-weight: 330;
  font-size: clamp(2.4rem, 4.6vw, 4rem);
  letter-spacing: -0.025em; line-height: 1;
  margin: 1.2rem 0 .7rem;
}
.practitioner__role { color: var(--pulse); font-size: .66rem; letter-spacing: .18em; margin-bottom: 2rem; }
.practitioner__bio p { color: var(--bone-dim); max-width: 40rem; margin-bottom: 1.3rem; }
.practitioner__bio strong { color: var(--bone); font-weight: 560; }
.practitioner__bio em { color: var(--bone); }
.practitioner__creds {
  list-style: none;
  display: flex; flex-wrap: wrap; gap: .6rem;
  margin-top: 2.2rem;
}
.practitioner__creds li {
  font-size: .6rem; letter-spacing: .13em;
  color: var(--bone);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .5rem .95rem;
  transition: border-color .3s, color .3s, background .3s;
}
.practitioner__creds li:hover { border-color: var(--sage); color: var(--sage); background: rgba(143,184,165,.06); }
.fullcircle {
  margin-top: 2.6rem;
  max-width: 40rem;
  border: 1px solid var(--line);
  border-left: 2px solid var(--pulse);
  border-radius: 4px;
  background: var(--ink);
  padding: 1.6rem 1.7rem 1.5rem;
}
.fullcircle__label {
  display: block;
  font-size: .58rem; letter-spacing: .16em;
  color: var(--pulse);
  margin-bottom: 1rem;
}
.fullcircle p { color: var(--bone-dim); margin-bottom: 1rem; }
.fullcircle p strong { color: var(--bone); font-weight: 560; }
.fullcircle__coda em { color: var(--sage); }
.fullcircle__link {
  display: inline-block;
  font-size: .6rem; letter-spacing: .16em;
  color: var(--bone-dim);
  border-bottom: 1px solid var(--line);
  padding-bottom: .25rem;
  transition: color .3s, border-color .3s;
}
.fullcircle__link:hover { color: var(--pulse); border-color: var(--pulse); }

@media (max-width: 900px) {
  .practitioner__grid { grid-template-columns: 1fr; }
  .practitioner__specimen { position: static; max-width: 30rem; }
}

/* ═══════════════════════════════════════════════════════════
   05 — CONSULT
   ═══════════════════════════════════════════════════════════ */
.consult {
  min-height: 88svh;
  display: flex; align-items: center;
  overflow: hidden;
}
.consult__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; opacity: .8; }
.consult__content { max-width: 74rem; }
.consult__status {
  display: inline-flex; align-items: center; gap: .7rem;
  margin-top: 1.5rem;
  color: var(--sage);
  font-size: .62rem; letter-spacing: .16em;
}
.consult__blink {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--sage);
  animation: blink 2.2s ease-in-out infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }
.consult__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(3rem, 10.5vw, 9rem);
  line-height: .96;
  letter-spacing: -0.035em;
  font-variation-settings: 'opsz' 144;
  margin: 1.6rem 0 1.8rem;
}
.consult__title em { color: var(--pulse); font-variation-settings: 'opsz' 144, 'SOFT' 55; }
.consult__sub { color: var(--bone-dim); max-width: 34rem; font-size: 1.1rem; margin-bottom: 2.8rem; }
.consult__sub em { color: var(--bone); }
.consult__actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.6rem; }
.consult__geo { color: var(--bone-dim); font-size: .62rem; letter-spacing: .16em; }

/* ═══════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════ */
.footer { border-top: 1px solid var(--line-soft); padding: 3.5rem var(--gutter) 2rem; background: var(--ink-2); }
.footer__top {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 2.5rem; flex-wrap: wrap;
  padding-bottom: 2.5rem; margin-bottom: 1.6rem;
  border-bottom: 1px solid var(--line-soft);
}
.footer__mark { display: flex; align-items: center; gap: 1.5rem; }
.footer__oc {
  height: 84px; width: auto; flex: none;
  color: var(--bone);
  transition: color .5s;
}
.footer__mark:hover .footer__oc { color: var(--pulse); }
.footer__word { font-family: var(--font-display); font-size: 2rem; font-weight: 350; letter-spacing: -0.01em; display: block; }
.footer__word sup { font-size: .4em; }
.footer__tag { display: block; margin-top: .8rem; color: var(--bone-dim); font-size: .55rem; letter-spacing: .12em; max-width: 34rem; line-height: 2; }
.footer__nav { display: flex; flex-direction: column; gap: .55rem; font-size: .9rem; }
.footer__nav a { color: var(--bone-dim); transition: color .3s; width: fit-content; }
.footer__nav a:hover { color: var(--pulse); }
.footer__bottom {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  color: var(--bone-dim); font-size: .58rem; letter-spacing: .12em;
}
.footer__credit { color: var(--sage); transition: color .3s; }
.footer__credit:hover { color: var(--pulse); }

/* ═══════════════════════════════════════════════════════════
   REDUCED MOTION
   ═══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001s !important; transition-duration: .001s !important; }
  .vital__scroll-ind i, .slat.is-active::after { animation: none !important; }
}