/* =====================================================================
   VYTALS  ·  Design System
   Private, self-pay lab testing connected to Carebridge Pharmacy, Vancouver BC.
   Bold, tactile, trustworthy. No em or en dashes anywhere in copy.
   ===================================================================== */

/* ----- Design tokens ------------------------------------------------- */
:root {
  /* Brand palette */
  --plasma:      #FF3D68;   /* vitality, blood, energy */
  --plasma-deep: #E11D53;
  --oxygen:      #12D2B4;   /* clinical freshness, trust */
  --oxygen-deep: #059E90;
  --violet:      #7B5CFF;   /* depth, systems */
  --amber:       #FFB23E;   /* warmth, highlight */

  /* Signature gradient */
  --grad-vital: linear-gradient(120deg, var(--plasma) 0%, var(--violet) 55%, var(--oxygen) 100%);
  --grad-soft:  linear-gradient(120deg, #FF3D68 0%, #7B5CFF 100%);

  /* Neutrals (light theme defaults) */
  --paper:   #FBF8F4;
  --surface: #FFFFFF;
  --surface-2: #F4EFE9;
  --ink:     #14161C;
  --ink-2:   #454A57;
  --ink-3:   #6E7482;
  --line:    #E7E0D7;
  --line-2:  #D6CEC2;

  /* Semantic */
  --focus:   #7B5CFF;
  --ok:      #12A594;
  --warn:    #C9700A;
  --danger:  #D6284B;

  /* Radii + shadow */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 34px;
  --shadow-1: 0 1px 2px rgba(20,22,28,.06), 0 2px 8px rgba(20,22,28,.05);
  --shadow-2: 0 10px 30px rgba(20,22,28,.10), 0 2px 8px rgba(20,22,28,.05);
  --shadow-glow: 0 12px 40px rgba(123,92,255,.22);

  /* Typography */
  --font-display: "Space Grotesk", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Text-size control multiplier (JS adjusts) */
  --type-scale: 1;
  --step--1: calc(0.833rem * var(--type-scale));
  --step-0:  calc(1rem     * var(--type-scale));
  --step-1:  calc(1.2rem   * var(--type-scale));
  --step-2:  calc(1.5rem   * var(--type-scale));
  --step-3:  calc(1.9rem   * var(--type-scale));
  --step-4:  calc(2.4rem   * var(--type-scale));
  --step-5:  calc(3.2rem   * var(--type-scale));
  --step-6:  calc(4.4rem   * var(--type-scale));

  --maxw: 1200px;
  --gutter: clamp(1rem, 4vw, 2.5rem);

  /* Body figure shading (light theme) */
  --body-hi:  #F6F1EA;
  --body-mid: #E7DED2;
  --body-lo:  #CFC5B6;
  --body-edge:#C4B9A9;
}

/* Dark theme */
:root[data-theme="dark"] {
  --paper:   #0C0E13;
  --surface: #14171F;
  --surface-2: #1C202B;
  --ink:     #F3F1EC;
  --ink-2:   #C3C7D1;
  --ink-3:   #8A909E;
  --line:    #262B37;
  --line-2:  #333A49;
  --shadow-1: 0 1px 2px rgba(0,0,0,.4), 0 2px 10px rgba(0,0,0,.35);
  --shadow-2: 0 14px 40px rgba(0,0,0,.5);
  --shadow-glow: 0 14px 50px rgba(123,92,255,.35);

  /* Body figure shading (dark theme) */
  --body-hi:  #303751;
  --body-mid: #1F2534;
  --body-lo:  #12161F;
  --body-edge:#3A4258;
}

/* ----- Reset --------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}
:root[data-motion="off"] *, :root[data-motion="off"] *::before, :root[data-motion="off"] *::after {
  animation-duration: .001ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: .001ms !important;
}

body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: .08em; text-underline-offset: .18em; }
h1,h2,h3,h4 { font-family: var(--font-display); line-height: 1.05; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: var(--step-6); }
h2 { font-size: var(--step-4); }
h3 { font-size: var(--step-2); }
p { color: var(--ink-2); }
strong { color: var(--ink); }

/* ----- Utility ------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.wrap-wide { max-width: 1360px; }
.section { padding-block: clamp(3.5rem, 9vw, 7rem); }
.eyebrow {
  font-family: var(--font-display); font-weight: 600; font-size: var(--step--1);
  letter-spacing: .16em; text-transform: uppercase; color: var(--plasma);
  display: inline-flex; align-items: center; gap: .55rem;
}
.eyebrow::before { content: ""; width: 1.6rem; height: 2px; background: var(--grad-soft); border-radius: 2px; }
.lede { font-size: var(--step-1); color: var(--ink-2); max-width: 60ch; }
.grad-text { background: var(--grad-vital); -webkit-background-clip: text; background-clip: text; color: transparent; }
.center { text-align: center; }
.mx-auto { margin-inline: auto; }
.stack > * + * { margin-top: 1rem; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -3rem; z-index: 200;
  background: var(--ink); color: var(--paper); padding: .6rem 1rem; border-radius: var(--r-sm);
  transition: top .2s ease;
}
.skip-link:focus { top: 1rem; }

:where(a, button, [tabindex], input, select, summary):focus-visible {
  outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 6px;
}

/* ----- Buttons ------------------------------------------------------- */
.btn {
  --btn-bg: var(--ink); --btn-fg: var(--paper);
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  font-family: var(--font-display); font-weight: 600; font-size: var(--step-0);
  padding: .85rem 1.5rem; border-radius: 100px; border: 0; cursor: pointer;
  background: var(--btn-bg); color: var(--btn-fg); text-decoration: none;
  transition: transform .18s cubic-bezier(.2,.9,.3,1.2), box-shadow .2s ease, filter .2s ease;
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); }
.btn:active { transform: translateY(0) scale(.98); }
.btn--vital { --btn-bg: transparent; color: #fff; background: var(--grad-vital); box-shadow: var(--shadow-glow); }
.btn--ghost { --btn-bg: transparent; color: var(--ink); border: 1.5px solid var(--line-2); }
.btn--ghost:hover { border-color: var(--ink); }
.btn--sm { padding: .55rem 1rem; font-size: var(--step--1); }
.btn--block { width: 100%; }

/* ----- Header / nav -------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: saturate(180%) blur(14px);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 1.2rem; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--font-display); font-weight: 700; font-size: var(--step-1); letter-spacing: -.02em; text-decoration: none; color: var(--ink); }
.brand .dot { width: 12px; height: 12px; border-radius: 50%; background: var(--grad-vital); box-shadow: 0 0 0 4px color-mix(in srgb, var(--plasma) 22%, transparent); animation: pulse-dot 3s ease-in-out infinite; }
@keyframes pulse-dot { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.25); opacity: .75; } }
.nav-links { display: flex; align-items: center; gap: .3rem; margin-left: auto; }
.nav-links a { font-size: var(--step--1); font-weight: 500; color: var(--ink-2); text-decoration: none; padding: .5rem .7rem; border-radius: 10px; transition: color .15s, background .15s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); background: var(--surface-2); }
.nav-tools { display: flex; align-items: center; gap: .35rem; }
.icon-btn {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 12px;
  background: var(--surface-2); border: 1px solid var(--line); color: var(--ink-2); cursor: pointer;
  transition: color .15s, transform .15s, border-color .15s;
}
.icon-btn:hover { color: var(--ink); transform: translateY(-1px); border-color: var(--line-2); }
.nav-toggle { display: none; }

@media (max-width: 940px) {
  .nav-links {
    position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: stretch; gap: .2rem;
    background: var(--surface); border-bottom: 1px solid var(--line); padding: 1rem var(--gutter);
    box-shadow: var(--shadow-2); transform: translateY(-140%); transition: transform .3s cubic-bezier(.2,.9,.3,1); margin-left: 0;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: .85rem .7rem; font-size: var(--step-0); }
  .nav-toggle { display: inline-grid; }
  .nav-cta-desktop { display: none; }
}

/* ----- Cards / surfaces ---------------------------------------------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.6rem; box-shadow: var(--shadow-1); }
.card--pad-lg { padding: clamp(1.5rem, 4vw, 2.5rem); }
.pill { display: inline-flex; align-items: center; gap: .4rem; font-size: var(--step--1); font-weight: 600; padding: .3rem .7rem; border-radius: 100px; background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--line); }
.pill--consumer { color: var(--oxygen-deep); background: color-mix(in srgb, var(--oxygen) 14%, transparent); border-color: color-mix(in srgb, var(--oxygen) 30%, transparent); }
.pill--req { color: var(--violet); background: color-mix(in srgb, var(--violet) 12%, transparent); border-color: color-mix(in srgb, var(--violet) 28%, transparent); }
.pill--sensitive { color: var(--warn); background: color-mix(in srgb, var(--amber) 16%, transparent); border-color: color-mix(in srgb, var(--amber) 34%, transparent); }

/* ----- Safety note --------------------------------------------------- */
.safety {
  display: flex; gap: .85rem; align-items: flex-start;
  background: color-mix(in srgb, var(--oxygen) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--oxygen) 26%, var(--line));
  border-radius: var(--r-md); padding: 1rem 1.15rem; color: var(--ink-2); font-size: var(--step--1);
}
.safety svg { flex: none; margin-top: .15rem; color: var(--oxygen-deep); }
.safety strong { color: var(--ink); }

/* =====================================================================
   HERO
   ===================================================================== */
.hero { position: relative; padding-top: clamp(2.5rem, 6vw, 4.5rem); overflow: clip; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
.hero h1 { font-size: clamp(2.6rem, 7vw, 4.6rem); }
.hero .lede { margin-top: 1.2rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.8rem; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-top: 2.2rem; }
.hero-stat b { font-family: var(--font-display); font-size: var(--step-2); display: block; }
.hero-stat span { font-size: var(--step--1); color: var(--ink-3); }
.blob {
  position: absolute; border-radius: 50%; filter: blur(60px); opacity: .5; z-index: -1; pointer-events: none;
  animation: drift 14s ease-in-out infinite;
}
.blob-1 { width: 42vw; height: 42vw; background: radial-gradient(circle, var(--plasma), transparent 70%); top: -12vw; right: -6vw; }
.blob-2 { width: 36vw; height: 36vw; background: radial-gradient(circle, var(--oxygen), transparent 70%); bottom: -14vw; left: -8vw; animation-delay: -6s; }
@keyframes drift { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(2vw,-2vw) scale(1.08); } }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}

/* =====================================================================
   BODY-MAP BUILDER
   ===================================================================== */
.builder { position: relative; }
.builder-shell {
  display: grid; grid-template-columns: minmax(0,1fr) 380px; gap: 1.25rem;
  align-items: start;
}
@media (max-width: 1040px) { .builder-shell { grid-template-columns: 1fr; } }

/* Stage (the body) */
.stage {
  position: relative; background:
     radial-gradient(120% 90% at 50% 8%, color-mix(in srgb, var(--violet) 10%, transparent), transparent 60%),
     var(--surface);
  border: 1px solid var(--line); border-radius: var(--r-xl); padding: 1.25rem;
  box-shadow: var(--shadow-2); overflow: hidden; min-height: 520px;
}
.stage-toolbar { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; justify-content: space-between; margin-bottom: .5rem; }
.segmented { display: inline-flex; background: var(--surface-2); border: 1px solid var(--line); border-radius: 100px; padding: 3px; gap: 2px; }
.segmented button {
  border: 0; background: transparent; color: var(--ink-2); font-family: var(--font-display); font-weight: 600;
  font-size: var(--step--1); padding: .45rem .9rem; border-radius: 100px; cursor: pointer; transition: color .15s;
}
.segmented button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-1); }
.stage-hint { font-size: var(--step--1); color: var(--ink-3); display: inline-flex; align-items: center; gap: .4rem; }

.body-wrap { position: relative; display: grid; place-items: center; padding: .5rem 0 1rem; }
.body-svg { width: min(360px, 88%); height: auto; overflow: visible; }
.body-svg .body-photo { -webkit-user-select: none; user-select: none; -webkit-user-drag: none; }
.body-svg .body-aura { pointer-events: none; opacity: .5; transform-box: fill-box; transform-origin: center; animation: aura 6.5s ease-in-out infinite; }
@keyframes aura { 0%,100% { opacity: .42; transform: scale(1); } 50% { opacity: .62; transform: scale(1.05); } }
.body-svg .torso-breathe { transform-box: fill-box; transform-origin: center; }
@keyframes breathe { 0%,100% { transform: scale(1); } 50% { transform: scale(1.015); } }

.region {
  cursor: pointer; fill: color-mix(in srgb, var(--violet) 8%, transparent);
  stroke: color-mix(in srgb, var(--violet) 40%, transparent); stroke-width: 2; vector-effect: non-scaling-stroke;
  transition: fill .25s ease, stroke .25s ease;
}
.region:hover, .region:focus-visible { fill: color-mix(in srgb, var(--plasma) 24%, transparent); stroke: var(--plasma); }
.region.active { fill: color-mix(in srgb, var(--oxygen) 26%, transparent); stroke: var(--oxygen-deep); }
.region.has-selection { fill: color-mix(in srgb, var(--oxygen) 20%, transparent); stroke: var(--oxygen-deep); }
.ripple { fill: none; stroke: var(--oxygen); stroke-width: 3; vector-effect: non-scaling-stroke; opacity: 0; }
.ripple.go { animation: ripple .7s ease-out; }
@keyframes ripple { 0% { r: 30; opacity: .8; } 100% { r: 340; opacity: 0; } }

.region-tag {
  position: absolute; transform: translate(-50%,-140%); background: var(--ink); color: var(--paper);
  font-size: 12px; font-weight: 600; padding: .3rem .6rem; border-radius: 8px; white-space: nowrap;
  pointer-events: none; opacity: 0; transition: opacity .15s; box-shadow: var(--shadow-2); z-index: 5;
}
.region-tag::after { content:""; position:absolute; left:50%; top:100%; transform:translateX(-50%); border:5px solid transparent; border-top-color: var(--ink); }
.region-tag.show { opacity: 1; }

/* Region detail flyout (tests for a chosen area) */
.region-panel {
  position: absolute; inset: auto 1.25rem 1.25rem 1.25rem; max-height: 62%;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  box-shadow: var(--shadow-2); padding: 1.1rem 1.2rem 1.2rem; overflow: auto;
  transform: translateY(110%); transition: transform .35s cubic-bezier(.2,.9,.3,1); z-index: 8;
}
.region-panel.open { transform: translateY(0); }
.region-panel h3 { font-size: var(--step-1); }
.region-panel .rp-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: .6rem; }
.region-panel .rp-close { flex: none; }

/* Test rows */
.test-row {
  display: grid; grid-template-columns: 1fr auto; gap: .5rem 1rem; align-items: start;
  padding: .85rem 0; border-top: 1px solid var(--line);
}
.test-row:first-of-type { border-top: 0; }
.test-name { font-family: var(--font-display); font-weight: 600; font-size: var(--step-1); display: flex; flex-wrap: wrap; gap: .5rem; align-items: baseline; }
.test-sub { font-family: var(--font-body); font-weight: 500; font-size: var(--step--1); color: var(--ink-3); }
.test-what { font-size: var(--step--1); color: var(--ink-2); margin-top: .15rem; }
.test-why { font-size: var(--step--1); color: var(--ink-3); margin-top: .1rem; }

/* What-this-means expander */
.learn-toggle {
  display: inline-flex; align-items: center; gap: .4rem; margin-top: .5rem;
  background: none; border: 0; padding: 0; cursor: pointer;
  font-family: var(--font-display); font-weight: 600; font-size: var(--step--1); color: var(--violet);
}
.learn-toggle:hover { color: var(--plasma-deep); }
.learn-toggle svg { flex: none; }
.learn-toggle[aria-expanded="true"] svg { color: var(--plasma); }
.test-learn { margin-top: .6rem; padding: .8rem .9rem; border-left: 3px solid var(--violet); background: var(--surface-2); border-radius: 0 var(--r-sm) var(--r-sm) 0; }
.test-learn p { font-size: var(--step--1); color: var(--ink-2); }
.test-learn p + p { margin-top: .5rem; }
.test-learn .test-why { font-style: normal; }
.test-learn-note { font-size: 12px; color: var(--ink-3); }
.test-meta { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .45rem; }
.test-side { display: flex; flex-direction: column; align-items: flex-end; gap: .5rem; }
.price { font-family: var(--font-display); font-weight: 700; font-size: var(--step-1); white-space: nowrap; }
.price small { font-weight: 500; color: var(--ink-3); font-size: var(--step--1); }
.add-btn {
  display: inline-flex; align-items: center; gap: .4rem; border: 1.5px solid var(--line-2); background: var(--surface);
  color: var(--ink); font-weight: 600; font-size: var(--step--1); font-family: var(--font-display);
  padding: .45rem .8rem; border-radius: 100px; cursor: pointer; transition: all .18s;
}
.add-btn:hover { border-color: var(--ink); transform: translateY(-1px); }
.add-btn.added { background: var(--oxygen-deep); border-color: var(--oxygen-deep); color: #fff; }

/* ----- Panel (cart) -------------------------------------------------- */
.panel {
  position: sticky; top: 88px; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-xl); box-shadow: var(--shadow-2); display: flex; flex-direction: column;
  max-height: calc(100vh - 108px); overflow: hidden;
}
.panel-head { padding: 1.15rem 1.2rem .9rem; border-bottom: 1px solid var(--line); }
.panel-head h3 { font-size: var(--step-1); display: flex; align-items: center; gap: .5rem; }
.panel-count { font-size: var(--step--1); color: var(--ink-3); margin-top: .1rem; }
.panel-body { overflow: auto; padding: .4rem 1.2rem; flex: 1; }
.panel-empty { text-align: center; color: var(--ink-3); padding: 2rem 1rem; font-size: var(--step--1); }
.panel-empty svg { margin: 0 auto .7rem; color: var(--line-2); }
.cart-item { display: grid; grid-template-columns: 1fr auto auto; gap: .5rem; align-items: center; padding: .7rem 0; border-bottom: 1px solid var(--line); }
.cart-item .ci-name { font-weight: 600; font-size: var(--step--1); font-family: var(--font-display); }
.cart-item .ci-price { font-weight: 600; font-size: var(--step--1); white-space: nowrap; }
.ci-remove { border: 0; background: transparent; color: var(--ink-3); cursor: pointer; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; }
.ci-remove:hover { color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, transparent); }
.panel-foot { padding: 1rem 1.2rem 1.2rem; border-top: 1px solid var(--line); background: var(--surface-2); }
.panel-total { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: .3rem; }
.panel-total .t-label { color: var(--ink-2); font-size: var(--step--1); }
.panel-total .t-value { font-family: var(--font-display); font-weight: 700; font-size: var(--step-3); }
.panel-note { font-size: 12px; color: var(--ink-3); margin: .3rem 0 .9rem; }
.panel-actions { display: flex; gap: .5rem; }

.toast {
  position: fixed; left: 50%; bottom: 1.5rem; transform: translateX(-50%) translateY(2rem);
  background: var(--ink); color: var(--paper); padding: .7rem 1.1rem; border-radius: 100px; font-size: var(--step--1);
  box-shadow: var(--shadow-2); opacity: 0; pointer-events: none; transition: all .25s; z-index: 300; display:flex; gap:.6rem; align-items:center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
.toast button { background: none; border: 0; color: var(--oxygen); font-weight: 700; cursor: pointer; font-family: var(--font-display); }

/* ----- Presets + search ---------------------------------------------- */
.builder-controls { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; margin: 0 0 1rem; }
.preset-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.preset {
  display: inline-flex; align-items: center; gap: .5rem; border: 1.5px solid var(--line); background: var(--surface);
  border-radius: 100px; padding: .5rem .95rem; cursor: pointer; font-weight: 600; font-size: var(--step--1);
  font-family: var(--font-display); color: var(--ink); transition: all .18s;
}
.preset:hover { border-color: var(--violet); transform: translateY(-2px); box-shadow: var(--shadow-1); }
.preset .p-ico { width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; background: var(--grad-soft); color: #fff; font-size: 12px; }
.search-box { position: relative; flex: 1; min-width: 200px; }
.search-box input {
  width: 100%; padding: .7rem 1rem .7rem 2.4rem; border-radius: 100px; border: 1.5px solid var(--line);
  background: var(--surface); color: var(--ink); font: inherit; font-size: var(--step--1);
}
.search-box input:focus { border-color: var(--violet); outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--violet) 20%, transparent); }
.search-box svg { position: absolute; left: .85rem; top: 50%; transform: translateY(-50%); color: var(--ink-3); }

/* Accessible list equivalent */
.a11y-list { margin-top: 1.25rem; }
details.system {
  border: 1px solid var(--line); border-radius: var(--r-md); margin-bottom: .6rem; background: var(--surface); overflow: hidden;
}
details.system > summary {
  cursor: pointer; padding: 1rem 1.2rem; font-family: var(--font-display); font-weight: 600; font-size: var(--step-1);
  display: flex; align-items: center; gap: .7rem; list-style: none;
}
details.system > summary::-webkit-details-marker { display: none; }
details.system > summary .chev { margin-left: auto; transition: transform .2s; color: var(--ink-3); }
details.system[open] > summary .chev { transform: rotate(180deg); }
details.system .sys-ico { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: color-mix(in srgb, var(--violet) 12%, transparent); color: var(--violet); }
.sys-body { padding: 0 1.2rem 1rem; }

.view-toggle { display: inline-flex; gap: .3rem; }

/* =====================================================================
   GENERIC SECTIONS
   ===================================================================== */
.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 860px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.feature { }
.feature .f-ico { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--grad-soft); color: #fff; margin-bottom: .9rem; box-shadow: var(--shadow-glow); }
.feature h3 { font-size: var(--step-1); margin-bottom: .4rem; }
.feature p { font-size: var(--step-0); }

/* Steps */
.steps { counter-reset: step; display: grid; gap: 1rem; }
.step { display: grid; grid-template-columns: auto 1fr; gap: 1.1rem; align-items: start; }
.step .s-num { counter-increment: step; font-family: var(--font-display); font-weight: 700; font-size: var(--step-1); width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--surface-2); border: 1px solid var(--line); color: var(--plasma); }
.step .s-num::before { content: counter(step); }
.step h3 { font-size: var(--step-1); }

/* Price table */
.price-card { text-align: left; }
.price-card .pc-amt { font-family: var(--font-display); font-weight: 700; font-size: var(--step-4); }
.price-card .pc-amt small { font-size: var(--step-0); color: var(--ink-3); font-weight: 500; }
.tbd { font-size: var(--step--1); color: var(--warn); font-weight: 600; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { cursor: pointer; padding: 1.15rem 0; font-family: var(--font-display); font-weight: 600; font-size: var(--step-1); list-style: none; display: flex; gap: 1rem; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .chev { margin-left: auto; transition: transform .2s; color: var(--ink-3); flex: none; }
.faq-item[open] summary .chev { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 0 1.2rem; color: var(--ink-2); max-width: 72ch; }

/* CTA band */
.cta-band { background: var(--grad-vital); color: #fff; border-radius: var(--r-xl); padding: clamp(2rem,6vw,3.5rem); text-align: center; position: relative; overflow: hidden; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.9); }
.cta-band .btn--vital { background: #fff; color: var(--ink); box-shadow: 0 10px 30px rgba(0,0,0,.2); }

/* Prose pages */
.prose { max-width: 74ch; }
.prose h2 { font-size: var(--step-2); margin-top: 2.4rem; }
.prose h3 { font-size: var(--step-1); margin-top: 1.6rem; }
.prose p, .prose li { color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { margin-bottom: .5rem; }
.prose a { color: var(--plasma-deep); }
.toc { position: sticky; top: 90px; font-size: var(--step--1); }
.toc a { display: block; padding: .3rem 0; color: var(--ink-3); text-decoration: none; }
.toc a:hover { color: var(--ink); }
.page-head { padding-block: clamp(2.5rem,6vw,4rem) clamp(1.5rem,3vw,2rem); }
.page-head h1 { font-size: clamp(2.2rem,6vw,3.6rem); }

/* ----- Footer -------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--line); background: var(--surface); margin-top: 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 2rem; padding-block: 3rem 2rem; }
@media (max-width: 780px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h4 { font-family: var(--font-display); font-size: var(--step--1); text-transform: uppercase; letter-spacing: .12em; color: var(--ink-3); margin-bottom: .8rem; }
.footer-grid a { display: block; color: var(--ink-2); text-decoration: none; padding: .25rem 0; font-size: var(--step--1); }
.footer-grid a:hover { color: var(--ink); }
.footer-legal { border-top: 1px solid var(--line); padding-block: 1.5rem 2.5rem; font-size: 12px; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; }
.footer-legal p { font-size: 12px; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.9,.3,1); }
.reveal.in { opacity: 1; transform: none; }
:root[data-motion="off"] .reveal { opacity: 1; transform: none; }

/* =====================================================================
   ANCESTRY MAP (antique)
   ===================================================================== */
.amap-shell { display: grid; grid-template-columns: minmax(0,1.35fr) 380px; gap: 1.25rem; align-items: start; }
@media (max-width: 1040px) { .amap-shell { grid-template-columns: 1fr; } }
.amap-stage { position: relative; border-radius: var(--r-xl); overflow: hidden; box-shadow: var(--shadow-2); border: 1px solid var(--line); }
.amap-svg { width: 100%; height: auto; display: block; }
.amap-land { fill: #C9A86A; stroke: #7A5A2E; stroke-width: 1.2; stroke-linejoin: round; }
:root[data-theme="dark"] .amap-stage { filter: saturate(.9) brightness(.94); }

.amap-marker { cursor: pointer; }
.amap-marker .mk-ring { fill: none; stroke: var(--plasma); stroke-width: 2; opacity: .55; transform-box: fill-box; transform-origin: center; animation: mkpulse 2.8s ease-in-out infinite; }
@keyframes mkpulse { 0%,100% { transform: scale(1); opacity: .5; } 50% { transform: scale(1.35); opacity: 0; } }
.amap-marker .mk-dot { fill: var(--plasma); stroke: #fff; stroke-width: 2; transition: transform .15s; transform-box: fill-box; transform-origin: center; }
.amap-marker .mk-num { fill: #fff; font-family: var(--font-display); font-weight: 700; font-size: 13px; pointer-events: none; }
.amap-marker:hover .mk-dot, .amap-marker:focus-visible .mk-dot { transform: scale(1.18); }
.amap-marker.on .mk-dot { fill: var(--oxygen-deep); }
.amap-marker.on .mk-ring { stroke: var(--oxygen-deep); }
.amap-compass text { font-family: var(--font-display); }

.amap-tip { position: absolute; transform: translate(-50%, -130%); background: var(--ink); color: var(--paper); font-size: 12px; font-weight: 600; padding: .3rem .6rem; border-radius: 8px; white-space: nowrap; pointer-events: none; opacity: 0; transition: opacity .15s; box-shadow: var(--shadow-2); z-index: 5; }
.amap-tip.show { opacity: 1; }

.amap-side { position: sticky; top: 88px; max-height: calc(100vh - 108px); overflow: auto; }
.amap-intro h3, .amap-side-head h3 { font-size: var(--step-2); }
.amap-intro p { font-size: var(--step--1); margin-top: .6rem; }
.amap-mixed { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-md); padding: .8rem .9rem; }
.amap-side-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.amap-homeland { font-size: var(--step--1); color: var(--ink-3); margin-top: .2rem; }
.amap-note { font-size: 12px; color: var(--ink-3); margin-top: 1rem; }

.linklike { background: none; border: 0; padding: 0; color: var(--plasma-deep); font: inherit; font-weight: 600; text-decoration: underline; cursor: pointer; }

.evi { border-top: 1px solid var(--line); padding: .9rem 0; }
.evi:first-of-type { border-top: 0; }
.evi-head { display: flex; align-items: baseline; justify-content: space-between; gap: .6rem; }
.evi-name { font-family: var(--font-display); font-weight: 600; font-size: var(--step-0); }
.evi-price { font-family: var(--font-display); font-weight: 700; font-size: var(--step--1); white-space: nowrap; }
.evi-what { font-size: var(--step--1); color: var(--ink-2); margin-top: .2rem; }
.evi-finding { display: flex; gap: .5rem; align-items: flex-start; font-size: var(--step--1); color: var(--ink); background: color-mix(in srgb, var(--oxygen) 8%, var(--surface)); border: 1px solid color-mix(in srgb, var(--oxygen) 22%, var(--line)); border-radius: var(--r-sm); padding: .55rem .65rem; margin-top: .5rem; }
.evi-finding svg { flex: none; margin-top: .15rem; color: var(--oxygen-deep); }
.evi-foot { display: flex; align-items: center; justify-content: space-between; gap: .6rem; margin-top: .6rem; }
.evi-src { font-size: 12px; color: var(--ink-3); text-decoration: none; border-bottom: 1px dotted var(--line-2); }
.evi-src:hover { color: var(--ink); }
.amap-listwrap { margin-top: 1.5rem; }
.amap-listwrap > summary { cursor: pointer; font-family: var(--font-display); font-weight: 600; color: var(--ink-2); padding: .6rem 0; }
.amap-list { margin-top: 1rem; }
.amap-list .sys-ico { background: var(--grad-soft); color: #fff; font-family: var(--font-display); font-weight: 700; }

/* =====================================================================
   EXPOSURE EXPLORER (occupational)
   ===================================================================== */
.exp-filter { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }
.exp-chip {
  border: 1.5px solid var(--line); background: var(--surface); color: var(--ink-2);
  border-radius: 100px; padding: .5rem .95rem; cursor: pointer; font-weight: 600; font-size: var(--step--1);
  font-family: var(--font-display); transition: all .16s;
}
.exp-chip:hover { border-color: var(--violet); color: var(--ink); }
.exp-chip.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.exp-legend { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 1rem; font-size: var(--step--1); color: var(--ink-3); }
.exp-key { display: inline-flex; align-items: center; gap: .4rem; }
.exp-key::before { content: ""; width: 12px; height: 12px; border-radius: 4px; }
.exp-key--metal::before { background: var(--plasma); }
.exp-key--solvent::before { background: var(--violet); }
.exp-key--other::before { background: var(--amber); }
.exp-key--essential::before { background: var(--oxygen); }

.exp-shell { display: grid; grid-template-columns: minmax(0,1.4fr) 360px; gap: 1.25rem; align-items: start; }
@media (max-width: 1040px) { .exp-shell { grid-template-columns: 1fr; } }

.exp-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: .7rem; }
.exp-tile {
  position: relative; aspect-ratio: 1; border-radius: var(--r-md); cursor: pointer;
  border: 1.5px solid var(--line); background: var(--surface); color: var(--ink);
  display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between;
  padding: .7rem; text-align: left; transition: transform .16s, box-shadow .16s, border-color .16s, opacity .2s;
  overflow: hidden;
}
.exp-tile::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; }
.exp-tile--metal::before { background: var(--plasma); }
.exp-tile--metalloid::before { background: linear-gradient(90deg, var(--plasma), var(--violet)); }
.exp-tile--solvent::before { background: var(--violet); }
.exp-tile--other::before { background: var(--amber); }
.exp-tile--essential::before { background: var(--oxygen); }
.exp-tile--essential { background: color-mix(in srgb, var(--oxygen) 6%, var(--surface)); }
.exp-tile--panel { border-style: dashed; background: var(--surface-2); }
.exp-tile--panel::before { background: var(--grad-soft); }
.exp-tile--panel-e::before { background: linear-gradient(90deg, var(--oxygen), var(--oxygen-deep)); }
.exp-tile:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); border-color: var(--line-2); }
.exp-tile.sel { border-color: var(--ink); box-shadow: var(--shadow-2); }
.exp-tile.dim { opacity: .28; filter: grayscale(.6); }
.exp-sym { font-family: var(--font-display); font-weight: 700; font-size: var(--step-3); line-height: 1; }
.exp-name { font-size: 12px; color: var(--ink-2); font-weight: 500; }

.exp-detail { position: sticky; top: 88px; max-height: calc(100vh - 108px); overflow: auto; }
.exp-intro h3 { font-size: var(--step-2); margin-top: .3rem; }
.exp-intro p { font-size: var(--step--1); margin-top: .6rem; }
.exp-note { color: var(--ink-3); font-size: 12px; }
.exp-detail-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: .8rem; }
.exp-detail-head h3 { font-size: var(--step-2); margin-top: .3rem; }
.exp-badge { display: inline-flex; font-size: 12px; font-weight: 600; padding: .2rem .6rem; border-radius: 100px; color: #fff; }
.exp-badge--metal { background: var(--plasma-deep); }
.exp-badge--metalloid { background: var(--violet); }
.exp-badge--solvent { background: var(--violet); }
.exp-badge--other { background: var(--warn); }
.exp-badge--essential { background: var(--oxygen-deep); }
.exp-essential-note { font-size: var(--step--1); color: var(--oxygen-deep); background: color-mix(in srgb, var(--oxygen) 10%, transparent); border-radius: var(--r-sm); padding: .5rem .65rem; margin-bottom: .3rem; font-weight: 600; }
.exp-sources-label { font-family: var(--font-display); font-weight: 600; font-size: var(--step--1); margin-top: 1rem; }
.exp-sources { margin: .4rem 0 0; padding-left: 1.1rem; }
.exp-sources li { font-size: var(--step--1); color: var(--ink-2); margin-bottom: .25rem; }
.exp-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .4rem; }
.exp-test { margin-top: 1.2rem; padding: 1rem; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface-2); }
.exp-test-head { display: flex; align-items: baseline; justify-content: space-between; gap: .6rem; }
.exp-test-name { font-family: var(--font-display); font-weight: 600; }
.exp-test .btn { margin-top: .8rem; }
.exp-test .btn.added { background: var(--oxygen-deep); }

/* =====================================================================
   RESULTS PORTAL (demo)
   ===================================================================== */
.portal-demoflag { font-size: var(--step--1); font-weight: 600; color: var(--warn); background: color-mix(in srgb, var(--amber) 16%, transparent); border: 1px solid color-mix(in srgb, var(--amber) 34%, transparent); border-radius: var(--r-sm); padding: .6rem .8rem; margin-bottom: 1.2rem; }
.portal-login { max-width: 460px; margin-inline: auto; }
.portal-label { display: block; font-family: var(--font-display); font-weight: 600; font-size: var(--step--1); margin: .8rem 0 .3rem; }
.portal-input { width: 100%; padding: .75rem .9rem; border-radius: var(--r-sm); border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); font: inherit; }
.portal-input:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 3px color-mix(in srgb, var(--violet) 20%, transparent); }
.portal-mini { font-size: 12px; color: var(--ink-3); margin-top: .3rem; }

.portal-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.portal-top h2 { font-size: var(--step-3); }
.portal-sub { color: var(--ink-3); font-size: var(--step--1); }
.portal-top-actions { display: flex; align-items: center; gap: .7rem; flex-wrap: wrap; }
.portal-secure { display: inline-flex; align-items: center; gap: .35rem; font-size: 12px; font-weight: 600; color: var(--oxygen-deep); background: color-mix(in srgb, var(--oxygen) 14%, transparent); border: 1px solid color-mix(in srgb, var(--oxygen) 28%, transparent); border-radius: 100px; padding: .25rem .6rem; }

/* MFA method chooser */
.mfa-methods { display: grid; gap: .6rem; margin-bottom: 1rem; }
.mfa-method { display: flex; align-items: center; gap: .8rem; text-align: left; width: 100%; padding: .9rem 1rem; border: 1.5px solid var(--line); background: var(--surface); border-radius: var(--r-md); cursor: pointer; transition: border-color .15s, box-shadow .15s, transform .15s; }
.mfa-method:hover { border-color: var(--violet); transform: translateY(-1px); box-shadow: var(--shadow-1); }
.mfa-method.sel { border-color: var(--violet); box-shadow: 0 0 0 3px color-mix(in srgb, var(--violet) 18%, transparent); }
.mfa-ico { flex: none; width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: color-mix(in srgb, var(--violet) 12%, transparent); color: var(--violet); }
.mfa-text { display: flex; flex-direction: column; }
.mfa-text strong { font-family: var(--font-display); font-size: var(--step-0); }
.mfa-text small { font-size: 12px; color: var(--ink-3); }
.portal-alert { display: flex; gap: .8rem; align-items: flex-start; background: color-mix(in srgb, var(--amber) 12%, var(--surface)); border: 1px solid color-mix(in srgb, var(--amber) 36%, var(--line)); border-radius: var(--r-md); padding: 1rem 1.15rem; color: var(--ink-2); font-size: var(--step--1); }
.portal-alert svg { flex: none; color: var(--warn); margin-top: .1rem; }
.portal-alert strong { color: var(--ink); }
.portal-ok { display: flex; gap: .6rem; align-items: center; background: color-mix(in srgb, var(--oxygen) 10%, var(--surface)); border: 1px solid color-mix(in srgb, var(--oxygen) 28%, var(--line)); border-radius: var(--r-md); padding: .8rem 1.1rem; color: var(--ink-2); font-size: var(--step--1); }
.portal-ok svg { color: var(--oxygen-deep); flex: none; }
.portal-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin: 1.2rem 0 1.6rem; }
.portal-hint { font-size: var(--step--1); color: var(--ink-3); }
.portal-foot { font-size: 12px; color: var(--ink-3); margin-top: 1.5rem; max-width: 70ch; }

.pcards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
@media (max-width: 720px) { .pcards { grid-template-columns: 1fr; } }
.pcard { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.3rem; box-shadow: var(--shadow-1); }
.pcard-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: .6rem; }
.pcard-head h3 { font-size: var(--step-1); }
.pcard-ref { font-size: 12px; color: var(--ink-3); margin-top: .15rem; }
.pcard-val { text-align: right; display: flex; flex-direction: column; align-items: flex-end; gap: .2rem; }
.pcard-num { font-family: var(--font-display); font-weight: 700; font-size: var(--step-2); line-height: 1; }
.pcard-unit { font-size: 12px; color: var(--ink-3); }
.status { display: inline-flex; font-size: 11px; font-weight: 700; padding: .15rem .5rem; border-radius: 100px; margin-top: .2rem; }
.status--ok { color: var(--oxygen-deep); background: color-mix(in srgb, var(--oxygen) 16%, transparent); }
.status--high { color: var(--danger); background: color-mix(in srgb, var(--danger) 12%, transparent); }
.status--low { color: var(--warn); background: color-mix(in srgb, var(--amber) 18%, transparent); }
.pcard-delta { font-size: 12px; color: var(--ink-3); margin-top: .4rem; }
.pcard-flag { font-size: var(--step--1); color: var(--ink-2); background: color-mix(in srgb, var(--amber) 12%, transparent); border-radius: var(--r-sm); padding: .5rem .65rem; margin-top: .5rem; }

/* chart */
.pc { width: 100%; height: auto; margin: .3rem 0; display: block; }
.pc-band { fill: color-mix(in srgb, var(--oxygen) 12%, transparent); }
.pc-line { fill: none; stroke: var(--violet); stroke-width: 2.4; vector-effect: non-scaling-stroke; stroke-linecap: round; stroke-linejoin: round; }
.pc-dot { fill: var(--violet); stroke: var(--surface); stroke-width: 1.5; }
.pc-dot.out { fill: var(--danger); }
.pc-dot.last { stroke-width: 2; }
.pc-xl { font-size: 10px; fill: var(--ink-3); font-family: var(--font-body); }
.pc-table { margin-top: .5rem; }
.pc-table summary { cursor: pointer; font-size: 12px; color: var(--ink-3); font-family: var(--font-display); font-weight: 600; }
.pc-table table { width: 100%; border-collapse: collapse; margin-top: .5rem; font-size: var(--step--1); }
.pc-table th, .pc-table td { text-align: left; padding: .3rem .5rem; border-bottom: 1px solid var(--line); }