/* ============================================================================
   PetSmartMeds — design system
   Soft UI Evolution · teal + amber · Figtree / Noto Sans
   Light + dark, WCAG AA, reduced-motion safe.
   ========================================================================= */

/* ------------------------------------------------------------------ tokens */
:root{
  /* brand */
  --ink:#0B3B38; --ink-2:#123F3C; --teal-deep:#0B5C57; --teal:#0D9488;
  --teal-lt:#16B8A6; --teal-100:#CCFBF1; --teal-50:#F0FDFA;
  --amber:#EA7A18; --amber-lt:#F0A028; --amber-50:#FEF6EC;
  --danger:#C81E1E; --danger-50:#FEF2F2; --ok:#0F7B4F; --ok-50:#ECFDF5;

  /* semantic surfaces */
  --bg:#FFFFFF; --bg-sub:#F6FBFA; --bg-sunk:#EDF6F5;
  --surface:#FFFFFF; --surface-2:#F6FBFA; --surface-raise:#FFFFFF;
  --fg:#0B3B38; --fg-2:#3D6360; --fg-3:#63857F; --fg-inv:#FFFFFF;
  --border:#D6E9E7; --border-2:#BFDDDA; --ring:#0D9488;
  --accent:var(--amber); --accent-fg:#FFFFFF;

  /* type */
  --ff-head:"Figtree",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --ff-body:"Noto Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --ff-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --fs-xs:.75rem; --fs-sm:.875rem; --fs-base:1rem; --fs-md:1.0625rem;
  --fs-lg:1.1875rem; --fs-xl:1.375rem; --fs-2xl:1.75rem; --fs-3xl:2.25rem;
  --fs-4xl:2.875rem; --fs-5xl:3.75rem; --fs-6xl:4.75rem;
  --lh-tight:1.1; --lh-snug:1.28; --lh-body:1.65; --lh-loose:1.78;

  /* space — 4/8 rhythm */
  --s-1:.25rem; --s-2:.5rem; --s-3:.75rem; --s-4:1rem; --s-5:1.25rem;
  --s-6:1.5rem; --s-8:2rem; --s-10:2.5rem; --s-12:3rem; --s-16:4rem;
  --s-20:5rem; --s-24:6rem; --s-32:8rem;
  --wrap:1180px; --wrap-wide:1400px; --wrap-text:68ch;

  /* shape + depth (Soft UI Evolution: softer than flat, clearer than neumorphic) */
  --r-sm:8px; --r:14px; --r-lg:20px; --r-xl:28px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,59,56,.06), 0 1px 3px rgba(11,59,56,.05);
  --sh-2:0 2px 4px rgba(11,59,56,.05), 0 6px 16px -4px rgba(11,59,56,.10);
  --sh-3:0 4px 8px rgba(11,59,56,.05), 0 14px 34px -8px rgba(11,59,56,.14);
  --sh-4:0 8px 18px rgba(11,59,56,.07), 0 28px 60px -14px rgba(11,59,56,.20);
  --sh-ring:0 0 0 1px var(--border);

  /* motion */
  --t-fast:140ms; --t:220ms; --t-slow:340ms; --t-xslow:520ms;
  --ease:cubic-bezier(.22,.61,.36,1);        /* ease-out, entering */
  --ease-in:cubic-bezier(.55,.06,.68,.19);   /* exiting */
  --ease-spring:cubic-bezier(.34,1.42,.48,1);

  /* z scale */
  --z-base:0; --z-raise:10; --z-sticky:20; --z-nav:40; --z-overlay:100; --z-toast:1000;
  --nav-h:68px;
}

@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#071A18; --bg-sub:#0A221F; --bg-sunk:#061512;
    --surface:#0C2724; --surface-2:#0A221F; --surface-raise:#113230;
    --fg:#E6F5F3; --fg-2:#A8CFCA; --fg-3:#7FB0AA; --fg-inv:#071A18;
    --border:#1B4340; --border-2:#245450; --ring:#16B8A6;
    --teal-100:#123F3C; --teal-50:#0A221F; --amber-50:#2A1C0C;
    --danger:#F87171; --danger-50:#2A1112; --ok:#34D399; --ok-50:#06231A;
    --sh-1:0 1px 2px rgba(0,0,0,.34); --sh-2:0 2px 6px rgba(0,0,0,.38),0 8px 20px -6px rgba(0,0,0,.44);
    --sh-3:0 4px 10px rgba(0,0,0,.40),0 18px 40px -10px rgba(0,0,0,.52);
    --sh-4:0 10px 24px rgba(0,0,0,.46),0 34px 70px -16px rgba(0,0,0,.60);
  }
}
:root[data-theme="dark"]{
  --bg:#071A18; --bg-sub:#0A221F; --bg-sunk:#061512;
  --surface:#0C2724; --surface-2:#0A221F; --surface-raise:#113230;
  --fg:#E6F5F3; --fg-2:#A8CFCA; --fg-3:#7FB0AA; --fg-inv:#071A18;
  --border:#1B4340; --border-2:#245450; --ring:#16B8A6;
  --teal-100:#123F3C; --teal-50:#0A221F; --amber-50:#2A1C0C;
  --danger:#F87171; --danger-50:#2A1112; --ok:#34D399; --ok-50:#06231A;
  --sh-1:0 1px 2px rgba(0,0,0,.34); --sh-2:0 2px 6px rgba(0,0,0,.38),0 8px 20px -6px rgba(0,0,0,.44);
  --sh-3:0 4px 10px rgba(0,0,0,.40),0 18px 40px -10px rgba(0,0,0,.52);
  --sh-4:0 10px 24px rgba(0,0,0,.46),0 34px 70px -16px rgba(0,0,0,.60);
}

/* ------------------------------------------------------------------- reset */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
html:focus-within{scroll-padding-top:calc(var(--nav-h) + var(--s-4))}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font:var(--fs-md)/var(--lh-body) var(--ff-body);
  font-synthesis-weight:none;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{font-family:var(--ff-head);font-weight:700;line-height:var(--lh-tight);
  margin:0 0 var(--s-4);letter-spacing:-.021em;color:var(--fg);text-wrap:balance}
h1{font-size:clamp(2.1rem,1.25rem + 4.1vw,var(--fs-5xl))}
h2{font-size:clamp(1.65rem,1.1rem + 2.3vw,var(--fs-3xl))}
h3{font-size:clamp(1.22rem,1.02rem + .8vw,var(--fs-xl));letter-spacing:-.014em}
h4{font-size:var(--fs-lg);letter-spacing:-.008em}
p,ul,ol,dl,figure,table,blockquote{margin:0 0 var(--s-4)}
p{max-width:var(--wrap-text);text-wrap:pretty}
a{color:var(--teal-deep);text-decoration-color:color-mix(in srgb,var(--teal) 42%,transparent);
  text-underline-offset:3px;transition:color var(--t-fast) var(--ease)}
a:hover{color:var(--teal);text-decoration-color:currentColor}
:root[data-theme="dark"] a,:where(@media (prefers-color-scheme:dark)) a{color:var(--teal-lt)}
img,svg,video,canvas{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
strong,b{font-weight:700}
small{font-size:var(--fs-sm)}
hr{border:0;border-top:1px solid var(--border);margin:var(--s-12) 0}
code,kbd,samp{font-family:var(--ff-mono);font-size:.92em}
[hidden]{display:none!important}
::selection{background:var(--teal-100);color:var(--ink)}

/* focus — never removed, always visible */
:focus-visible{outline:3px solid var(--ring);outline-offset:2px;border-radius:4px}
:focus:not(:focus-visible){outline:none}

.skip{position:absolute;left:var(--s-4);top:-100px;z-index:var(--z-toast);
  background:var(--surface);color:var(--fg);padding:var(--s-3) var(--s-5);
  border-radius:var(--r-sm);box-shadow:var(--sh-3);font-weight:600;
  transition:top var(--t) var(--ease)}
.skip:focus{top:var(--s-4)}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ------------------------------------------------------------------ layout */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--s-5)}
.wrap-wide{max-width:var(--wrap-wide)}
.wrap-text{max-width:var(--wrap-text)}
@media (min-width:768px){.wrap{padding-inline:var(--s-8)}}
@media (min-width:1280px){.wrap{padding-inline:var(--s-6)}}
section{position:relative}
.sec{padding-block:clamp(var(--s-16),8vw,var(--s-32))}
.sec-sm{padding-block:clamp(var(--s-10),5vw,var(--s-16))}
.sec-sub{background:var(--bg-sub)}
.sec-sunk{background:var(--bg-sunk)}
.sec-ink{background:var(--ink);color:#E6F5F3}
.sec-ink h1,.sec-ink h2,.sec-ink h3,.sec-ink h4{color:#fff}
.sec-ink a{color:var(--teal-lt)}
.grid{display:grid;gap:var(--s-6)}
.g-2{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}
.g-3{grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.g-4{grid-template-columns:repeat(auto-fit,minmax(min(100%,208px),1fr))}
.split{display:grid;gap:clamp(var(--s-8),4vw,var(--s-16));align-items:center}
@media (min-width:900px){.split{grid-template-columns:1fr 1fr}.split-wide{grid-template-columns:1.25fr .85fr}}
.stack>*+*{margin-top:var(--s-4)}
.row{display:flex;flex-wrap:wrap;gap:var(--s-3);align-items:center}
.center{text-align:center}.center p{margin-inline:auto}
.eyebrow{font-family:var(--ff-head);font-size:var(--fs-xs);font-weight:700;
  letter-spacing:.15em;text-transform:uppercase;color:var(--teal);
  margin:0 0 var(--s-3);display:flex;align-items:center;gap:var(--s-2)}
.center .eyebrow{justify-content:center}
.sec-ink .eyebrow{color:var(--teal-lt)}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor;border-radius:2px;opacity:.6;flex:none}
.lede{font-size:clamp(var(--fs-lg),1rem + .7vw,var(--fs-xl));line-height:var(--lh-snug);
  color:var(--fg-2);font-weight:400;letter-spacing:-.008em}
.muted{color:var(--fg-2)}.muted-2{color:var(--fg-3)}
.mono{font-family:var(--ff-mono);font-variant-numeric:tabular-nums}
.tnum{font-variant-numeric:tabular-nums}

/* ----------------------------------------------------------------- buttons */
.btn{
  --btn-bg:var(--teal-deep); --btn-fg:#fff; --btn-bd:var(--teal-deep);
  display:inline-flex;align-items:center;justify-content:center;gap:var(--s-2);
  min-height:48px;padding:var(--s-3) var(--s-6);
  font-family:var(--ff-head);font-size:var(--fs-base);font-weight:600;letter-spacing:-.004em;
  background:var(--btn-bg);color:var(--btn-fg);border:1.5px solid var(--btn-bd);
  border-radius:var(--r-pill);text-decoration:none;cursor:pointer;
  box-shadow:var(--sh-1);
  transition:background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),
             box-shadow var(--t) var(--ease),transform var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.btn:hover{--btn-bg:var(--teal);--btn-bd:var(--teal);box-shadow:var(--sh-3);transform:translateY(-1px);color:#fff}
.btn:active{transform:translateY(0) scale(.985);box-shadow:var(--sh-1)}
.btn-accent{--btn-bg:var(--amber);--btn-bd:var(--amber)}
.btn-accent:hover{--btn-bg:#D46A0E;--btn-bd:#D46A0E}
.btn-ghost{--btn-bg:transparent;--btn-fg:var(--teal-deep);--btn-bd:var(--border-2)}
.btn-ghost:hover{--btn-bg:var(--teal-50);--btn-fg:var(--teal-deep);--btn-bd:var(--teal)}
.btn-on-dark{--btn-bg:#fff;--btn-fg:var(--ink);--btn-bd:#fff}
.btn-on-dark:hover{--btn-bg:var(--teal-100);--btn-fg:var(--ink);--btn-bd:var(--teal-100)}
.btn-ghost-on-dark{--btn-bg:transparent;--btn-fg:#fff;--btn-bd:rgba(255,255,255,.42)}
.btn-ghost-on-dark:hover{--btn-bg:rgba(255,255,255,.12);--btn-fg:#fff;--btn-bd:#fff}
.btn-sm{min-height:40px;padding:var(--s-2) var(--s-4);font-size:var(--fs-sm)}
.btn-lg{min-height:56px;padding:var(--s-4) var(--s-8);font-size:var(--fs-lg)}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.45;pointer-events:none;box-shadow:none}
.btn svg{width:1.1em;height:1.1em;flex:none}
.btn-block{width:100%}
.btn .spin{width:1em;height:1em;border:2px solid currentColor;border-right-color:transparent;
  border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.link-arrow{display:inline-flex;align-items:center;gap:var(--s-2);font-family:var(--ff-head);
  font-weight:600;text-decoration:none;color:var(--teal-deep)}
.link-arrow svg{width:1.05em;height:1.05em;transition:transform var(--t) var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}
.sec-ink .link-arrow{color:var(--teal-lt)}

/* ------------------------------------------------------------------- cards */
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:var(--s-6);box-shadow:var(--sh-1);position:relative;
  transition:box-shadow var(--t) var(--ease),transform var(--t) var(--ease),
             border-color var(--t) var(--ease);
}
.card-hover:hover,.card-hover:focus-within{box-shadow:var(--sh-3);transform:translateY(-3px);border-color:var(--border-2)}
.card-flat{box-shadow:none;background:var(--surface-2)}
.card h3{margin-bottom:var(--s-2)}
.card>p:last-child,.card>*:last-child{margin-bottom:0}
.card-link{text-decoration:none;color:inherit;display:block}
.card-link:hover{color:inherit}
.card-ico{width:46px;height:46px;border-radius:var(--r);display:grid;place-items:center;
  background:var(--teal-50);color:var(--teal-deep);margin-bottom:var(--s-4);flex:none}
.card-ico svg{width:24px;height:24px}
.card-ico-amber{background:var(--amber-50);color:#A9530A}
:root[data-theme="dark"] .card-ico-amber{color:var(--amber-lt)}

.pill{display:inline-flex;align-items:center;gap:var(--s-2);padding:5px var(--s-3);
  border-radius:var(--r-pill);font-family:var(--ff-head);font-size:var(--fs-xs);
  font-weight:600;letter-spacing:.02em;background:var(--teal-50);color:var(--teal-deep);
  border:1px solid var(--border);white-space:nowrap}
.pill-amber{background:var(--amber-50);color:#A9530A;border-color:color-mix(in srgb,var(--amber) 28%,transparent)}
.pill-danger{background:var(--danger-50);color:var(--danger);border-color:color-mix(in srgb,var(--danger) 28%,transparent)}
.pill-ok{background:var(--ok-50);color:var(--ok);border-color:color-mix(in srgb,var(--ok) 28%,transparent)}
.pill-ink{background:var(--ink);color:#fff;border-color:var(--ink)}
:root[data-theme="dark"] .pill-amber{color:var(--amber-lt)}

/* evidence tier chips — used across research, products, protocols */
.tier{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-pill);
  font-family:var(--ff-head);font-size:var(--fs-xs);font-weight:700;letter-spacing:.03em;
  text-transform:uppercase;border:1px solid}
.tier::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;flex:none}
.tier-1{background:var(--ok-50);color:#0B6B44;border-color:#9BD9BE}       /* approved */
.tier-2{background:#EFF6FF;color:#1D4ED8;border-color:#BFD7FE}            /* controlled trial, target species */
.tier-3{background:var(--amber-50);color:#96490A;border-color:#F3C88C}    /* early / other species */
.tier-4{background:var(--bg-sunk);color:var(--fg-2);border-color:var(--border-2)} /* preclinical only */
.tier-5{background:var(--danger-50);color:var(--danger);border-color:#F3B4B4}    /* no evidence */
:root[data-theme="dark"] .tier-1{background:#06231A;color:#34D399;border-color:#1C5540}
:root[data-theme="dark"] .tier-2{background:#0E1E3A;color:#93B4FD;border-color:#27417A}
:root[data-theme="dark"] .tier-3{background:#2A1C0C;color:var(--amber-lt);border-color:#5C3A12}
:root[data-theme="dark"] .tier-5{background:#2A1112;color:#F87171;border-color:#5C2020}

/* -------------------------------------------------------------- navigation */
.nav{position:sticky;top:0;z-index:var(--z-nav);background:color-mix(in srgb,var(--bg) 86%,transparent);
  border-bottom:1px solid transparent;transition:border-color var(--t) var(--ease),
  background var(--t) var(--ease),box-shadow var(--t) var(--ease)}
@supports (backdrop-filter:blur(1px)){.nav{backdrop-filter:saturate(1.6) blur(14px)}}
.nav.is-stuck{border-bottom-color:var(--border);box-shadow:var(--sh-1)}
/* transparent over a video hero, opaque once scrolled */
.nav.on-hero{background:transparent;border-bottom-color:transparent;box-shadow:none}
.nav.on-hero .nav-link,.nav.on-hero .nav-brand{color:#fff}
.nav.on-hero .nav-link:hover{color:#fff;background:rgba(255,255,255,.14)}
.nav.on-hero .nav-toggle{color:#fff}
.nav-in{display:flex;align-items:center;gap:var(--s-4);min-height:var(--nav-h)}
.nav-brand{display:flex;align-items:center;gap:var(--s-3);text-decoration:none;
  color:var(--fg);font-family:var(--ff-head);font-weight:700;flex:none}
.nav-brand img{height:34px;width:auto}
.nav-links{display:none;align-items:center;gap:2px;margin-left:auto;list-style:none;padding:0;margin-block:0}
@media (min-width:1060px){.nav-links{display:flex}}
.nav-link{display:inline-flex;align-items:center;gap:5px;padding:9px var(--s-3);border-radius:var(--r-pill);
  font-family:var(--ff-head);font-size:var(--fs-sm);font-weight:600;color:var(--fg-2);
  text-decoration:none;white-space:nowrap;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}
.nav-link:hover{background:var(--teal-50);color:var(--teal-deep)}
.nav-link[aria-current="page"]{color:var(--teal-deep);background:var(--teal-50)}
.nav-link[aria-current="page"]::after{content:"";position:absolute}
.nav-actions{display:flex;align-items:center;gap:var(--s-2);margin-left:auto}
@media (min-width:1060px){.nav-actions{margin-left:var(--s-3)}}
.nav-toggle{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--border);
  background:var(--surface);border-radius:var(--r-sm);color:var(--fg)}
@media (min-width:1060px){.nav-toggle{display:none}}
.nav-toggle svg{width:22px;height:22px}
.nav-cta{display:none;white-space:nowrap;flex:none}
@media (min-width:560px){.nav-cta{display:inline-flex}}
/* The wordmark is an <img>, so `color:#fff` on the parent cannot reach it —
   two images, swapped by the on-hero state, is the only correct fix. */
.nav-brand .logo-dark{display:none}
.nav.on-hero .nav-brand .logo-light{display:none}
.nav.on-hero .nav-brand .logo-dark{display:block}

/* dropdown — click/tap driven, not hover-only */
.nav-has-sub{position:relative}
.nav-sub{position:absolute;top:calc(100% + 8px);left:0;min-width:264px;background:var(--surface-raise);
  border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--sh-4);
  padding:var(--s-2);list-style:none;margin:0;
  opacity:0;visibility:hidden;transform:translateY(-6px) scale(.985);transform-origin:top left;
  transition:opacity var(--t-fast) var(--ease),transform var(--t-fast) var(--ease),visibility var(--t-fast)}
.nav-has-sub[data-open="true"] .nav-sub{opacity:1;visibility:visible;transform:none}
.nav-sub a{display:block;padding:10px var(--s-3);border-radius:var(--r-sm);text-decoration:none;
  color:var(--fg);font-size:var(--fs-sm);font-family:var(--ff-head);font-weight:500}
.nav-sub a:hover{background:var(--teal-50);color:var(--teal-deep)}
.nav-sub .nav-sub-note{display:block;font-family:var(--ff-body);font-weight:400;
  font-size:var(--fs-xs);color:var(--fg-3);margin-top:1px}

/* mobile drawer */
.drawer{position:fixed;inset:0;z-index:var(--z-overlay);display:grid;
  grid-template-columns:1fr min(86vw,400px);pointer-events:none}
.drawer[data-open="true"]{pointer-events:auto}
.drawer-scrim{background:rgba(6,21,18,.56);opacity:0;transition:opacity var(--t) var(--ease)}
.drawer[data-open="true"] .drawer-scrim{opacity:1}
.drawer-panel{background:var(--surface);border-left:1px solid var(--border);
  padding:var(--s-5);overflow-y:auto;transform:translateX(100%);
  transition:transform var(--t-slow) var(--ease);box-shadow:var(--sh-4)}
.drawer[data-open="true"] .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--s-5)}
.drawer a{display:block;padding:var(--s-3) 0;border-bottom:1px solid var(--border);
  text-decoration:none;color:var(--fg);font-family:var(--ff-head);font-weight:600}
.drawer a:hover{color:var(--teal)}
.drawer-group{margin-top:var(--s-5)}
.drawer-group>span{display:block;font-size:var(--fs-xs);font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--fg-3);margin-bottom:var(--s-1)}
.drawer-group a{font-weight:500;font-size:var(--fs-sm);padding:10px 0}

/* language + theme switches */
.switch{display:inline-flex;background:var(--surface-2);border:1px solid var(--border);
  border-radius:var(--r-pill);padding:3px;gap:2px}
.switch a,.switch button{display:inline-grid;place-items:center;min-width:38px;min-height:34px;
  padding:0 var(--s-2);border:0;background:transparent;border-radius:var(--r-pill);
  font-family:var(--ff-head);font-size:var(--fs-xs);font-weight:700;letter-spacing:.06em;
  color:var(--fg-2);text-decoration:none;transition:background var(--t-fast),color var(--t-fast)}
.switch a[aria-current="true"],.switch button[aria-pressed="true"]{background:var(--surface-raise);
  color:var(--teal-deep);box-shadow:var(--sh-1)}
.switch a:hover,.switch button:hover{color:var(--teal-deep)}
.nav.on-hero .switch{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.3)}
.nav.on-hero .switch a,.nav.on-hero .switch button{color:rgba(255,255,255,.85)}
.nav.on-hero .switch a[aria-current="true"],.nav.on-hero .switch button[aria-pressed="true"]{
  background:rgba(255,255,255,.94);color:var(--ink)}
.theme-btn svg{width:17px;height:17px}
:root[data-theme="dark"] .ico-sun,.ico-moon{display:none}
:root[data-theme="dark"] .ico-moon{display:block}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .ico-sun{display:none}
  :root:not([data-theme="light"]) .ico-moon{display:block}}

/* ---------------------------------------------------------- hero + video */
.hero{position:relative;isolation:isolate;display:grid;align-items:end;
  min-height:clamp(560px,86svh,940px);margin-top:calc(-1 * var(--nav-h));
  padding-top:calc(var(--nav-h) + var(--s-12));padding-bottom:clamp(var(--s-12),7vw,var(--s-24));
  color:#fff;overflow:hidden;background:var(--ink)}
.hero-media{position:absolute;inset:0;z-index:-2;overflow:hidden}
.hero-media video,.hero-media img{width:100%;height:100%;object-fit:cover;object-position:50% 42%}
/* Scrim is BANDED to the text zone, not a flat inset-0 wash — keeps the footage
   looking like footage instead of a grey sheet, while text stays >=4.5:1. */
.hero-scrim{position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:
    linear-gradient(to top,
      rgba(6,21,18,.93) 0%, rgba(6,21,18,.88) 16%, rgba(6,21,18,.74) 34%,
      rgba(6,21,18,.46) 52%, rgba(6,21,18,.20) 70%, rgba(6,21,18,.06) 86%, rgba(6,21,18,0) 100%),
    linear-gradient(to right, rgba(6,21,18,.52) 0%, rgba(6,21,18,.22) 46%, rgba(6,21,18,0) 78%);}
.hero-top-scrim{position:absolute;inset:0 0 auto;height:calc(var(--nav-h) + 44px);z-index:-1;
  pointer-events:none;background:linear-gradient(to bottom,rgba(6,21,18,.60),rgba(6,21,18,0))}
.hero h1{color:#fff;max-width:19ch;margin-bottom:var(--s-5);
  text-shadow:0 2px 26px rgba(6,21,18,.42)}
.hero .lede{color:rgba(255,255,255,.93);max-width:54ch;font-weight:400;
  text-shadow:0 1px 14px rgba(6,21,18,.5)}
.hero-eyebrow{color:#7FE6D8!important}
.hero-cta{display:flex;flex-wrap:wrap;gap:var(--s-3);margin-top:var(--s-8)}
.hero-badges{display:flex;flex-wrap:wrap;gap:var(--s-2) var(--s-5);margin-top:var(--s-10);
  padding-top:var(--s-6);border-top:1px solid rgba(255,255,255,.2)}
.hero-badge{display:flex;align-items:center;gap:var(--s-2);font-size:var(--fs-sm);
  color:rgba(255,255,255,.9);font-family:var(--ff-head);font-weight:500}
.hero-badge svg{width:18px;height:18px;color:var(--teal-lt);flex:none}
.hero-scroll{position:absolute;left:50%;bottom:var(--s-5);translate:-50% 0;z-index:2;
  display:grid;place-items:center;width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,.36);color:#fff;background:rgba(255,255,255,.08)}
.hero-scroll svg{width:18px;height:18px;animation:nudge 2.1s var(--ease) infinite}
@keyframes nudge{0%,100%{transform:translateY(-2px)}50%{transform:translateY(3px)}}
.video-ctl{position:absolute;right:var(--s-5);bottom:var(--s-5);z-index:2;
  display:grid;place-items:center;width:42px;height:42px;border-radius:50%;
  background:rgba(6,21,18,.52);border:1px solid rgba(255,255,255,.3);color:#fff}
.video-ctl:hover{background:rgba(6,21,18,.76)}
.video-ctl svg{width:17px;height:17px}
.video-ctl .ico-pause{display:none}
.video-ctl[data-paused="true"] .ico-pause{display:block}
.video-ctl[data-paused="true"] .ico-play{display:none}

/* inline video / explainer player */
.vframe{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--ink);
  box-shadow:var(--sh-3);aspect-ratio:16/9}
.vframe video,.vframe img{width:100%;height:100%;object-fit:cover}
.vframe-play{position:absolute;inset:0;display:grid;place-items:center;border:0;
  background:linear-gradient(to top,rgba(6,21,18,.6),rgba(6,21,18,.12));color:#fff}
.vframe-play span{display:grid;place-items:center;width:74px;height:74px;border-radius:50%;
  background:rgba(255,255,255,.95);color:var(--ink);box-shadow:var(--sh-4);
  transition:transform var(--t) var(--ease-spring)}
.vframe-play:hover span{transform:scale(1.08)}
.vframe-play svg{width:28px;height:28px;margin-left:3px}
.vframe-cap{position:absolute;left:0;right:0;bottom:0;padding:var(--s-5);
  background:linear-gradient(to top,rgba(6,21,18,.88),rgba(6,21,18,0));color:#fff;
  font-family:var(--ff-head);font-weight:600;pointer-events:none}
.vframe[data-playing="true"] .vframe-play,.vframe[data-playing="true"] .vframe-cap{display:none}

/* ------------------------------------------------- reveal (fails VISIBLE) */
/* The hide rule is gated on .js, set by an inline <head> script. With JS off,
   broken, or throttled, content is simply visible — never a blank page. */
.js .reveal{opacity:0;transform:translateY(18px);
  transition:opacity var(--t-xslow) var(--ease),transform var(--t-xslow) var(--ease)}
.js .reveal.in{opacity:1;transform:none}
.js .reveal-scale{opacity:0;transform:scale(.97)}
.js .reveal-scale.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal,.js .reveal-scale{opacity:1!important;transform:none!important;transition:none}
  .hero-scroll svg,.spin{animation:none}
  *{scroll-behavior:auto!important}
}

/* Screenshot/debug escape hatch: backdrop-filter hangs some headless renderers. */
.nobf .nav,.nobf [style*="backdrop"]{backdrop-filter:none!important}

/* ------------------------------------------------------------------- forms */
.field{display:block;margin-bottom:var(--s-5)}
.field>label,.label{display:block;font-family:var(--ff-head);font-size:var(--fs-sm);
  font-weight:600;color:var(--fg);margin-bottom:6px}
.req{color:var(--danger);margin-left:2px}
.hint{display:block;font-size:var(--fs-sm);color:var(--fg-3);margin-top:5px;line-height:1.5}
.input,.select,.textarea{
  width:100%;min-height:48px;padding:var(--s-3) var(--s-4);
  background:var(--surface);color:var(--fg);
  border:1.5px solid var(--border-2);border-radius:var(--r-sm);
  font-size:var(--fs-base);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),
             background var(--t-fast) var(--ease)}
.textarea{min-height:132px;resize:vertical;line-height:var(--lh-body);padding-top:var(--s-3)}
.select{appearance:none;padding-right:var(--s-10);cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233D6360' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right var(--s-4) center;background-size:17px}
.input:hover,.select:hover,.textarea:hover{border-color:var(--teal)}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--teal);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--teal) 22%,transparent)}
.input[aria-invalid="true"],.select[aria-invalid="true"],.textarea[aria-invalid="true"]{
  border-color:var(--danger);background:var(--danger-50)}
.input[aria-invalid="true"]:focus{box-shadow:0 0 0 3px color-mix(in srgb,var(--danger) 20%,transparent)}
.err{display:none;align-items:center;gap:6px;margin-top:6px;font-size:var(--fs-sm);
  font-weight:600;color:var(--danger)}
.err[data-show="true"]{display:flex}
.err svg{width:15px;height:15px;flex:none}
.field-row{display:grid;gap:var(--s-4)}
@media (min-width:640px){.field-row{grid-template-columns:1fr 1fr}.field-row-3{grid-template-columns:repeat(3,1fr)}}
fieldset{border:1px solid var(--border);border-radius:var(--r);padding:var(--s-5);margin:0 0 var(--s-5)}
legend{font-family:var(--ff-head);font-weight:700;font-size:var(--fs-sm);padding-inline:var(--s-2);
  letter-spacing:.02em;text-transform:uppercase;color:var(--teal-deep)}

/* choice chips — used for pet conditions, poster filters, protocol filters */
.choices{display:flex;flex-wrap:wrap;gap:var(--s-2);margin:0;padding:0;list-style:none}
.choice{position:relative}
.choice input{position:absolute;opacity:0;width:0;height:0}
.choice span{display:inline-flex;align-items:center;gap:6px;min-height:42px;
  padding:var(--s-2) var(--s-4);border:1.5px solid var(--border-2);border-radius:var(--r-pill);
  background:var(--surface);font-family:var(--ff-head);font-size:var(--fs-sm);font-weight:600;
  color:var(--fg-2);cursor:pointer;user-select:none;
  transition:background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),
             color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}
.choice span:hover{border-color:var(--teal);color:var(--teal-deep);background:var(--teal-50)}
.choice span:active{transform:scale(.97)}
.choice input:checked+span{background:var(--teal-deep);border-color:var(--teal-deep);color:#fff}
.choice input:focus-visible+span{outline:3px solid var(--ring);outline-offset:2px}
.choice input:checked+span::before{content:"";width:13px;height:13px;flex:none;
  background:currentColor;-webkit-mask:var(--check) center/contain no-repeat;mask:var(--check) center/contain no-repeat}
:root{--check:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E")}

.checkline{display:flex;gap:var(--s-3);align-items:flex-start;margin-bottom:var(--s-3)}
.checkline input[type=checkbox],.checkline input[type=radio]{width:20px;height:20px;flex:none;
  margin-top:2px;accent-color:var(--teal-deep);cursor:pointer}
.checkline label{font-size:var(--fs-sm);line-height:1.55;color:var(--fg-2);cursor:pointer}

/* form status banner */
.formmsg{display:none;gap:var(--s-3);align-items:flex-start;padding:var(--s-4) var(--s-5);
  border-radius:var(--r);margin-bottom:var(--s-5);font-size:var(--fs-sm);line-height:1.55;
  border:1px solid}
.formmsg[data-state]{display:flex}
.formmsg[data-state="ok"]{background:var(--ok-50);border-color:#9BD9BE;color:#0B6B44}
.formmsg[data-state="err"]{background:var(--danger-50);border-color:#F3B4B4;color:var(--danger)}
.formmsg[data-state="busy"]{background:var(--teal-50);border-color:var(--border-2);color:var(--teal-deep)}
.formmsg svg{width:19px;height:19px;flex:none;margin-top:1px}
:root[data-theme="dark"] .formmsg[data-state="ok"]{color:#34D399;border-color:#1C5540}

/* ------------------------------------------------------------------ tables */
.tablewrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r);
  background:var(--surface);-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:var(--fs-sm);margin:0}
caption{text-align:left;padding:var(--s-4) var(--s-5);font-family:var(--ff-head);
  font-weight:700;color:var(--fg);border-bottom:1px solid var(--border)}
th,td{padding:var(--s-3) var(--s-4);text-align:left;border-bottom:1px solid var(--border);
  vertical-align:top;line-height:1.5}
thead th{background:var(--surface-2);font-family:var(--ff-head);font-weight:700;
  font-size:var(--fs-xs);letter-spacing:.07em;text-transform:uppercase;color:var(--fg-2);
  white-space:nowrap;position:sticky;top:0;z-index:1}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:var(--surface-2)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;font-family:var(--ff-mono)}
.t-compare td:first-child,.t-compare th:first-child{font-weight:600;color:var(--fg)}

/* allowed / banned claim table */
.t-claims td{width:50%}
.t-claims .allow{background:var(--ok-50)}
.t-claims .ban{background:var(--danger-50)}
:root[data-theme="dark"] .t-claims .allow{background:#06231A}
:root[data-theme="dark"] .t-claims .ban{background:#2A1112}

/* ---------------------------------------------------------------- disclose */
.acc{border:1px solid var(--border);border-radius:var(--r);background:var(--surface);
  overflow:hidden;margin-bottom:var(--s-3)}
.acc summary{display:flex;align-items:center;gap:var(--s-3);padding:var(--s-4) var(--s-5);
  cursor:pointer;font-family:var(--ff-head);font-weight:600;list-style:none;
  transition:background var(--t-fast) var(--ease)}
.acc summary::-webkit-details-marker{display:none}
.acc summary:hover{background:var(--surface-2)}
.acc summary::after{content:"";width:18px;height:18px;margin-left:auto;flex:none;
  background:currentColor;transition:transform var(--t) var(--ease);
  -webkit-mask:var(--chev) center/contain no-repeat;mask:var(--chev) center/contain no-repeat}
.acc[open] summary::after{transform:rotate(180deg)}
.acc-body{padding:0 var(--s-5) var(--s-5);border-top:1px solid var(--border);padding-top:var(--s-4)}
.acc-body>*:last-child{margin-bottom:0}
:root{--chev:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E")}

/* tabs */
.tabs{display:flex;gap:var(--s-1);border-bottom:1px solid var(--border);margin-bottom:var(--s-6);
  overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{position:relative;padding:var(--s-3) var(--s-4);border:0;background:transparent;
  font-family:var(--ff-head);font-size:var(--fs-sm);font-weight:600;color:var(--fg-2);
  white-space:nowrap;border-bottom:2.5px solid transparent;margin-bottom:-1px;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.tab:hover{color:var(--teal-deep)}
.tab[aria-selected="true"]{color:var(--teal-deep);border-bottom-color:var(--teal)}
.tabpanel[hidden]{display:none}

/* ------------------------------------------------------------------- stats */
.stats{display:grid;gap:var(--s-5);grid-template-columns:repeat(auto-fit,minmax(min(100%,180px),1fr))}
.stat{padding:var(--s-5);border-radius:var(--r);background:var(--surface-2);border:1px solid var(--border)}
.sec-ink .stat{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14)}
.stat-n{display:block;font-family:var(--ff-head);font-size:clamp(1.9rem,1.2rem + 2vw,2.7rem);
  font-weight:800;line-height:1;letter-spacing:-.03em;color:var(--teal-deep);
  font-variant-numeric:tabular-nums;margin-bottom:6px}
.sec-ink .stat-n{color:var(--teal-lt)}
.stat-l{font-size:var(--fs-sm);color:var(--fg-2);line-height:1.45}
.sec-ink .stat-l{color:rgba(255,255,255,.78)}
.stat-src{display:block;font-size:var(--fs-xs);color:var(--fg-3);margin-top:var(--s-2)}

/* --------------------------------------------------------------- callouts */
.note{display:flex;gap:var(--s-4);padding:var(--s-5);border-radius:var(--r);
  background:var(--surface-2);border:1px solid var(--border);border-left:3px solid var(--teal);
  margin-bottom:var(--s-5)}
.note>svg{width:21px;height:21px;flex:none;color:var(--teal-deep);margin-top:2px}
.note-body>*:last-child{margin-bottom:0}
.note-body strong{display:block;font-family:var(--ff-head);margin-bottom:4px}
.note-amber{background:var(--amber-50);border-left-color:var(--amber)}
.note-amber>svg{color:#A9530A}
.note-danger{background:var(--danger-50);border-left-color:var(--danger)}
.note-danger>svg{color:var(--danger)}
.note-ok{background:var(--ok-50);border-left-color:var(--ok)}
.note-ok>svg{color:var(--ok)}
:root[data-theme="dark"] .note-amber>svg{color:var(--amber-lt)}

/* regulatory / claim disclaimer block — deliberately plain and unmissable */
.legalbox{border:1px solid var(--border-2);border-radius:var(--r);background:var(--bg-sunk);
  padding:var(--s-5);font-size:var(--fs-sm);line-height:1.6;color:var(--fg-2)}
.legalbox strong{color:var(--fg);font-family:var(--ff-head)}
.legalbox p:last-child{margin-bottom:0}
.rx{display:inline-flex;align-items:center;gap:6px;font-family:var(--ff-head);font-weight:700;
  font-size:var(--fs-xs);letter-spacing:.06em;text-transform:uppercase;
  color:var(--danger);border:1.5px solid currentColor;border-radius:var(--r-sm);padding:3px 8px}

/* ------------------------------------------------------- product + protocol */
.prod{display:flex;flex-direction:column;height:100%}
.prod-top{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--s-3);margin-bottom:var(--s-3)}
.prod-vial{width:52px;height:64px;flex:none;border-radius:6px 6px 10px 10px;position:relative;
  background:linear-gradient(105deg,#E7F4F2 0%,#FFF 42%,#D9EBE9 100%);
  border:1px solid var(--border-2);overflow:hidden;box-shadow:var(--sh-1)}
.prod-vial::before{content:"";position:absolute;inset:auto 0 0;height:var(--fill,54%);
  background:var(--fillc,linear-gradient(to top,#BFE6E0,#E6F6F3))}
.prod-vial::after{content:"";position:absolute;inset:0 0 auto;height:11px;
  background:var(--cap,#0B5C57);border-radius:5px 5px 2px 2px}
.prod-vial[data-kind="pen"]{width:34px;border-radius:4px 4px 16px 16px}
.prod-vial[data-kind="nasal"]{width:44px;border-radius:4px 4px 8px 8px}
.prod-vial[data-kind="cell"]{--fillc:linear-gradient(to top,#9AD9CF,#D9F2EE)}
.prod-vial[data-kind="exo"]{--fillc:linear-gradient(to top,#F6C888,#FDEBD2);--cap:#C2650C}
.prod-name{font-family:var(--ff-head);font-weight:700;font-size:var(--fs-lg);margin:0 0 2px;
  letter-spacing:-.012em;line-height:1.25}
.prod-sub{font-size:var(--fs-sm);color:var(--fg-3);margin:0}
.prod-meta{display:flex;flex-wrap:wrap;gap:var(--s-2);margin:var(--s-3) 0}
.prod-body{font-size:var(--fs-sm);line-height:1.62;color:var(--fg-2);margin-bottom:var(--s-4)}
.prod-foot{margin-top:auto;padding-top:var(--s-4);border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:var(--s-3)}
.prod-price{font-family:var(--ff-head);font-weight:800;font-size:var(--fs-lg);
  color:var(--fg);font-variant-numeric:tabular-nums}
.prod-price small{display:block;font-family:var(--ff-body);font-weight:400;font-size:var(--fs-xs);
  color:var(--fg-3);letter-spacing:0}
/* Clinic-only pricing must never render on a public page: gated server/build side,
   this is only the visual fallback if a gate is ever missed. */
.price-gated{font-size:var(--fs-sm);color:var(--fg-3);font-style:italic}

.proto-head{border-left:3px solid var(--teal);padding-left:var(--s-5);margin-bottom:var(--s-8)}
.proto-grid{display:grid;gap:var(--s-4)}
@media (min-width:860px){.proto-grid{grid-template-columns:minmax(0,1fr) 310px;align-items:start}}
.proto-side{position:sticky;top:calc(var(--nav-h) + var(--s-4));display:grid;gap:var(--s-4)}
.steps{counter-reset:st;list-style:none;padding:0;margin:0}
.steps>li{counter-increment:st;position:relative;padding-left:var(--s-12);padding-bottom:var(--s-6)}
.steps>li::before{content:counter(st);position:absolute;left:0;top:0;width:34px;height:34px;
  border-radius:50%;display:grid;place-items:center;background:var(--teal-deep);color:#fff;
  font-family:var(--ff-head);font-weight:700;font-size:var(--fs-sm)}
.steps>li::after{content:"";position:absolute;left:17px;top:38px;bottom:0;width:2px;
  background:var(--border);}
.steps>li:last-child{padding-bottom:0}
.steps>li:last-child::after{display:none}
.steps h4{margin-bottom:6px}
.steps p,.steps ul{font-size:var(--fs-sm);color:var(--fg-2);margin-bottom:var(--s-2)}

.dl-spec{display:grid;grid-template-columns:auto 1fr;gap:var(--s-2) var(--s-5);margin:0;font-size:var(--fs-sm)}
.dl-spec dt{font-family:var(--ff-head);font-weight:600;color:var(--fg-3);white-space:nowrap}
.dl-spec dd{margin:0;color:var(--fg)}

/* citations */
.cite{font-size:var(--fs-sm);color:var(--fg-2);line-height:1.55}
.cite-list{list-style:none;padding:0;counter-reset:c}
.cite-list li{counter-increment:c;position:relative;padding-left:var(--s-8);margin-bottom:var(--s-3);
  font-size:var(--fs-sm);line-height:1.55;color:var(--fg-2)}
.cite-list li::before{content:"[" counter(c) "]";position:absolute;left:0;top:0;
  font-family:var(--ff-mono);font-size:var(--fs-xs);color:var(--teal);font-weight:500}
sup.ref{font-family:var(--ff-mono);font-size:.68em;vertical-align:super;line-height:0}
sup.ref a{text-decoration:none;padding:0 1px}

/* --------------------------------------------------------------- evidence bar */
.evbar{display:grid;gap:var(--s-2);margin:var(--s-2) 0}
.evbar-row{display:grid;grid-template-columns:minmax(88px,auto) 1fr auto;gap:var(--s-3);
  align-items:center;font-size:var(--fs-sm)}
.evbar-track{height:9px;border-radius:var(--r-pill);background:var(--bg-sunk);overflow:hidden}
.evbar-fill{height:100%;border-radius:var(--r-pill);background:var(--teal);
  width:var(--w,0%);transition:width 1s var(--ease)}
.evbar-fill[data-tone="amber"]{background:var(--amber)}
.evbar-fill[data-tone="grey"]{background:var(--fg-3)}
.evbar-v{font-family:var(--ff-mono);font-size:var(--fs-xs);color:var(--fg-2);white-space:nowrap}

/* ------------------------------------------------------------------ posters */
.poster-grid{display:grid;gap:var(--s-6);grid-template-columns:repeat(auto-fill,minmax(min(100%,272px),1fr))}
.poster{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:box-shadow var(--t) var(--ease),transform var(--t) var(--ease)}
.poster:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.poster-thumb{position:relative;background:var(--bg-sunk);aspect-ratio:1/1.4142;overflow:hidden}
.poster-thumb svg,.poster-thumb img{width:100%;height:100%;object-fit:contain;display:block}
.poster-meta{padding:var(--s-4);display:flex;flex-direction:column;gap:var(--s-2);flex:1}
.poster-meta h3{font-size:var(--fs-base);margin:0}
.poster-acts{margin-top:auto;display:flex;gap:var(--s-2);flex-wrap:wrap}
/* the editable clinic-name slot */
.clinic-slot{fill:var(--slot-fill,#0B5C57)}
.slot-note{display:inline-flex;align-items:center;gap:5px;font-size:var(--fs-xs);
  font-family:var(--ff-head);font-weight:600;color:var(--amber);letter-spacing:.02em}

/* ------------------------------------------------------------- portal chrome */
.portal{display:grid;min-height:calc(100svh - var(--nav-h))}
@media (min-width:960px){.portal{grid-template-columns:252px 1fr}}
.portal-side{background:var(--surface-2);border-right:1px solid var(--border);padding:var(--s-5)}
.portal-side h2{font-size:var(--fs-xs);letter-spacing:.14em;text-transform:uppercase;
  color:var(--fg-3);margin-bottom:var(--s-3)}
.portal-nav{list-style:none;padding:0;margin:0 0 var(--s-8)}
.portal-nav a{display:flex;align-items:center;gap:var(--s-3);padding:10px var(--s-3);
  border-radius:var(--r-sm);text-decoration:none;color:var(--fg-2);font-family:var(--ff-head);
  font-size:var(--fs-sm);font-weight:600;transition:background var(--t-fast),color var(--t-fast)}
.portal-nav a:hover{background:var(--teal-50);color:var(--teal-deep)}
.portal-nav a[aria-current="page"]{background:var(--teal-deep);color:#fff}
.portal-nav svg{width:18px;height:18px;flex:none}
.portal-main{padding:clamp(var(--s-5),3vw,var(--s-10))}
.portal-bar{display:flex;flex-wrap:wrap;align-items:center;gap:var(--s-4);
  padding-bottom:var(--s-5);margin-bottom:var(--s-6);border-bottom:1px solid var(--border)}
.portal-bar h1{margin:0;font-size:var(--fs-2xl)}
.portal-bar .row{margin-left:auto}
.wl-brand{display:flex;align-items:center;gap:var(--s-3);padding:var(--s-4);
  background:var(--surface);border:1px dashed var(--border-2);border-radius:var(--r);margin-bottom:var(--s-6)}
.wl-logo{width:46px;height:46px;border-radius:10px;display:grid;place-items:center;flex:none;
  background:var(--wl-color,var(--teal-deep));color:#fff;font-family:var(--ff-head);font-weight:800}

/* cart / order lines */
.lines{list-style:none;padding:0;margin:0}
.lines li{display:grid;grid-template-columns:1fr auto auto;gap:var(--s-4);align-items:center;
  padding:var(--s-3) 0;border-bottom:1px solid var(--border);font-size:var(--fs-sm)}
.lines li:last-child{border-bottom:0}
.qty{display:inline-flex;align-items:center;border:1.5px solid var(--border-2);border-radius:var(--r-pill);overflow:hidden}
.qty button{width:34px;height:38px;border:0;background:var(--surface);color:var(--fg);font-weight:700}
.qty button:hover{background:var(--teal-50);color:var(--teal-deep)}
.qty input{width:44px;height:38px;border:0;text-align:center;background:var(--surface);
  font-variant-numeric:tabular-nums;font-weight:600;-moz-appearance:textfield}
.qty input::-webkit-outer-spin-button,.qty input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.totals{display:grid;gap:var(--s-2);padding-top:var(--s-4);border-top:2px solid var(--border-2);
  font-size:var(--fs-sm)}
.totals div{display:flex;justify-content:space-between;gap:var(--s-4)}
.totals .grand{font-family:var(--ff-head);font-weight:800;font-size:var(--fs-lg);color:var(--fg);
  padding-top:var(--s-2);border-top:1px solid var(--border)}

/* ----------------------------------------------------------------- qr / tech */
.qr-card{display:grid;gap:var(--s-5);align-items:center;padding:var(--s-6);
  border:1px solid var(--border);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--sh-1)}
@media (min-width:640px){.qr-card{grid-template-columns:auto 1fr}}
.qr-box{width:156px;height:156px;padding:var(--s-3);background:#fff;border-radius:var(--r);
  border:1px solid var(--border);box-shadow:var(--sh-1)}
.qr-box svg{width:100%;height:100%;shape-rendering:crispEdges}
.flow{display:grid;gap:var(--s-4);counter-reset:f}
@media (min-width:900px){.flow-4{grid-template-columns:repeat(4,1fr)}.flow-3{grid-template-columns:repeat(3,1fr)}}
.flow-step{position:relative;padding:var(--s-5);border-radius:var(--r);background:var(--surface);
  border:1px solid var(--border);counter-increment:f}
.flow-step::before{content:counter(f);position:absolute;top:calc(-1 * var(--s-3));left:var(--s-5);
  width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  background:var(--amber);color:#fff;font-family:var(--ff-head);font-weight:800;font-size:var(--fs-sm);
  box-shadow:var(--sh-2)}
.flow-step h4{margin:var(--s-3) 0 var(--s-2)}
.flow-step p{font-size:var(--fs-sm);color:var(--fg-2);margin:0}
@media (min-width:900px){
  .flow-4>.flow-step:not(:last-child)::after,.flow-3>.flow-step:not(:last-child)::after{
    content:"";position:absolute;top:50%;right:calc(-1 * var(--s-4) - 1px);width:var(--s-4);
    height:2px;background:var(--border-2)}
}

/* ------------------------------------------------------------------- footer */
.foot{background:var(--ink);color:rgba(255,255,255,.76);padding-block:var(--s-16) var(--s-8);
  font-size:var(--fs-sm)}
.foot a{color:rgba(255,255,255,.76);text-decoration:none}
.foot a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-top{display:grid;gap:var(--s-10);padding-bottom:var(--s-10);
  border-bottom:1px solid rgba(255,255,255,.14)}
@media (min-width:760px){.foot-top{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot h3{color:#fff;font-size:var(--fs-xs);letter-spacing:.14em;text-transform:uppercase;
  margin-bottom:var(--s-4);font-weight:700}
.foot ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.foot-brand img{height:34px;margin-bottom:var(--s-4)}
.foot-brand p{color:rgba(255,255,255,.66);max-width:34ch;font-size:var(--fs-sm)}
.foot-offices{display:grid;gap:var(--s-5);margin-top:var(--s-6)}
@media (min-width:520px){.foot-offices{grid-template-columns:1fr 1fr}}
.office{padding:var(--s-4);border-radius:var(--r);background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12)}
.office strong{display:flex;align-items:center;gap:var(--s-2);color:#fff;
  font-family:var(--ff-head);margin-bottom:6px}
.office strong svg{width:16px;height:16px;color:var(--teal-lt)}
.office span{display:block;color:rgba(255,255,255,.66);line-height:1.5;font-size:var(--fs-sm)}
.foot-bot{display:flex;flex-wrap:wrap;gap:var(--s-4);align-items:center;
  padding-top:var(--s-6);font-size:var(--fs-xs);color:rgba(255,255,255,.56)}
.foot-bot nav{display:flex;flex-wrap:wrap;gap:var(--s-4);margin-left:auto}
.foot-legal{margin-top:var(--s-8);padding:var(--s-5);border-radius:var(--r);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  font-size:var(--fs-xs);line-height:1.62;color:rgba(255,255,255,.66)}
.foot-legal strong{color:#fff}
.foot-legal p:last-child{margin-bottom:0}

/* ----------------------------------------------------------------- cta band */
.cta{position:relative;isolation:isolate;overflow:hidden;background:var(--teal-deep);color:#fff;
  padding-block:clamp(var(--s-12),6vw,var(--s-24))}
.cta::before{content:"";position:absolute;inset:0;z-index:-1;opacity:.5;
  background:radial-gradient(ellipse 80% 130% at 12% 0%,rgba(22,184,166,.55),transparent 62%),
             radial-gradient(ellipse 70% 120% at 92% 108%,rgba(234,122,24,.42),transparent 60%)}
.cta h2{color:#fff;max-width:24ch}
.cta p{color:rgba(255,255,255,.9);max-width:56ch}
.cta-split{display:grid;gap:var(--s-8);align-items:center}
@media (min-width:880px){.cta-split{grid-template-columns:1.35fr auto}}

/* two-audience selector on the landing page */
.forks{display:grid;gap:var(--s-5)}
@media (min-width:820px){.forks{grid-template-columns:1fr 1fr}}
.fork{position:relative;display:flex;flex-direction:column;gap:var(--s-3);padding:var(--s-8);
  border-radius:var(--r-lg);text-decoration:none;color:inherit;overflow:hidden;
  border:1.5px solid var(--border);background:var(--surface);box-shadow:var(--sh-1);
  transition:box-shadow var(--t) var(--ease),transform var(--t) var(--ease),border-color var(--t) var(--ease)}
.fork:hover{box-shadow:var(--sh-4);transform:translateY(-4px);border-color:var(--teal);color:inherit}
.fork::after{content:"";position:absolute;inset:auto 0 0;height:4px;
  background:linear-gradient(90deg,var(--teal),var(--teal-lt));
  transform:scaleX(0);transform-origin:left;transition:transform var(--t-slow) var(--ease)}
.fork:hover::after{transform:scaleX(1)}
.fork-owner::after{background:linear-gradient(90deg,var(--amber),var(--amber-lt))}
.fork h3{font-size:var(--fs-2xl);margin:0}
.fork p{color:var(--fg-2);margin:0;font-size:var(--fs-base)}
.fork ul{list-style:none;padding:0;margin:var(--s-2) 0 0;display:grid;gap:8px;font-size:var(--fs-sm)}
.fork li{display:flex;gap:var(--s-2);align-items:flex-start;color:var(--fg-2)}
.fork li svg{width:16px;height:16px;color:var(--teal);flex:none;margin-top:3px}
.fork-owner li svg{color:var(--amber)}
.fork .link-arrow{margin-top:auto;padding-top:var(--s-4)}

/* logo strip / trust row */
.strip{display:flex;flex-wrap:wrap;gap:var(--s-4) var(--s-8);align-items:center;justify-content:center}
.strip-item{display:flex;align-items:center;gap:var(--s-2);font-family:var(--ff-head);
  font-size:var(--fs-sm);font-weight:600;color:var(--fg-3)}
.strip-item svg{width:19px;height:19px;color:var(--teal);flex:none}

/* pet profile result panel */
.match{border:1px solid var(--border);border-radius:var(--r-lg);background:var(--surface);
  box-shadow:var(--sh-2);overflow:hidden}
.match-head{padding:var(--s-5) var(--s-6);background:var(--teal-deep);color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;gap:var(--s-3)}
.match-head h3{color:#fff;margin:0;font-size:var(--fs-lg)}
.match-head .pill{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.28)}
.match-body{padding:var(--s-6);display:grid;gap:var(--s-5)}
.match-empty{padding:var(--s-10) var(--s-6);text-align:center;color:var(--fg-3)}
.match-empty svg{width:46px;height:46px;margin:0 auto var(--s-4);color:var(--border-2)}

/* map / offices */
.mapcard{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border);
  background:var(--surface);box-shadow:var(--sh-1)}
.mapcard-art{aspect-ratio:16/10;background:var(--bg-sunk);position:relative;overflow:hidden}
.mapcard-art svg{width:100%;height:100%}
.mapcard-body{padding:var(--s-5)}

/* utilities */
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.mt-4{margin-top:var(--s-4)}.mt-6{margin-top:var(--s-6)}.mt-8{margin-top:var(--s-8)}
.mt-10{margin-top:var(--s-10)}.mt-12{margin-top:var(--s-12)}
.mb-4{margin-bottom:var(--s-4)}.mb-6{margin-bottom:var(--s-6)}.mb-8{margin-bottom:var(--s-8)}
.mb-10{margin-bottom:var(--s-10)}.mb-12{margin-bottom:var(--s-12)}
.full{width:100%}.nowrap{white-space:nowrap}
.hide{display:none}
@media (max-width:639px){.sm-hide{display:none}}
@media (min-width:640px){.sm-only{display:none}}
.scroll-x{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:thin}
.listreset{list-style:none;padding:0;margin:0}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.ticks li{display:flex;gap:var(--s-3);align-items:flex-start;font-size:var(--fs-base);color:var(--fg-2)}
.ticks li>svg{width:18px;height:18px;color:var(--teal);flex:none;margin-top:5px}
.ticks-amber li>svg{color:var(--amber)}
.sec-ink .ticks li{color:rgba(255,255,255,.82)}
.sec-ink .ticks li>svg{color:var(--teal-lt)}

/* print — posters and protocols must print cleanly */
@media print{
  .nav,.drawer,.foot,.hero-scroll,.video-ctl,.skip,.no-print{display:none!important}
  body{background:#fff;color:#000;font-size:11pt}
  .sec{padding-block:12pt}
  .card,.note,.legalbox{box-shadow:none;border:1px solid #999;break-inside:avoid}
  a{color:#000;text-decoration:underline}
  a[href^="http"]::after{content:" (" attr(href) ")";font-size:8pt;color:#555}
  .js .reveal,.js .reveal-scale{opacity:1!important;transform:none!important}
  h1,h2,h3{break-after:avoid}
  .steps>li{break-inside:avoid}
}

/* ===================================================== corrections pass 1 */

/* 1. CONTRAST. `.lede` carries --fg-2, which is a dark teal — unreadable on an
   ink band. .sec-ink sets a light colour on the section but cannot reach a
   child with its own explicit colour, so it must be overridden here. */
.sec-ink .lede,.cta .lede{color:rgba(255,255,255,.90)}
.sec-ink .muted,.sec-ink .muted-2,.cta .muted{color:rgba(255,255,255,.74)}
.sec-ink .prod-sub,.sec-ink .cite,.sec-ink .hint{color:rgba(255,255,255,.74)}
.sec-ink .stat-src{color:rgba(255,255,255,.62)}
.sec-ink p{color:rgba(255,255,255,.88)}
.sec-ink .eyebrow{color:var(--teal-lt)}

/* 2. Inner-page hero band: a title block, not a full-height section. */
.sec-band{padding-block:clamp(var(--s-10),5vw,var(--s-16)) clamp(var(--s-8),4vw,var(--s-12))}
.sec-band h1{margin-bottom:var(--s-4)}
.sec-band+.sec{padding-top:clamp(var(--s-10),5vw,var(--s-16))}

/* 3. MOBILE NAV OVERFLOW — the real bug behind clipped pages at 390px.
   The 210px wordmark plus two switches plus the toggle exceeded the viewport,
   which widened the document and clipped every section below it. */
.nav-in{min-width:0}
.nav-brand{min-width:0}
.nav-brand img{max-width:100%}
@media (max-width:620px){
  .nav-in{gap:var(--s-2)}
  .nav-brand img{height:28px}
  .nav-actions{gap:6px}
  .switch a,.switch button{min-width:32px;min-height:32px}
}
@media (max-width:440px){
  .theme-switch{display:none}          /* the OS setting still drives the theme */
  .nav-brand img{height:26px}
}

/* 4. Nothing may exceed the viewport. Belt and braces for long tokens:
   PMIDs, DOIs, SKU codes and URLs in citation text. */
.cite,.cite-list li,.dl-spec dd,.prod-sub{overflow-wrap:anywhere}
.mono{overflow-wrap:anywhere}
.note-body,.legalbox{min-width:0}
.card,.note,.stat,.poster,.flow-step{min-width:0}
.split>*,.grid>*{min-width:0}