/* ==========================================================================
   Herd Link — marketing site
   Palette, type and motion per docs/herd-link/00-brand-and-design.md
   ========================================================================== */

:root{
  --ink:#22160F;
  --ink-soft:#7A6558;
  --cream:#FFF6EF;
  --paper:#FFFDF9;
  --ember:#FF3D1F;
  --amber:#FF9F1C;
  --link:#0E7C86;
  --ok:#3E9B4F;
  --line:rgba(34,22,15,.10);
  --shadow:0 20px 50px -18px rgba(120,60,30,.25), 0 4px 14px rgba(120,60,30,.10);
  --spring:cubic-bezier(.34,1.56,.64,1);
  --ease:cubic-bezier(.22,.8,.28,1);
  --radius:22px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--cream); color:var(--ink);
  font-family:"General Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  font-size:17px; line-height:1.55;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
img,video,iframe,canvas{display:block;max-width:100%}
a{color:inherit}
.wrap{max-width:1200px;margin:0 auto;padding:0 clamp(18px,4vw,44px)}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0)}
.hp{position:absolute;left:-9999px;opacity:0;height:0;width:0}
.micro{font-size:.82rem;color:var(--ink-soft);font-variant-numeric:tabular-nums}

/* ---------------------------------------------------------------- type --- */
h1,h2,h3{font-family:"Fraunces",Georgia,serif;font-weight:560;letter-spacing:-.02em;margin:0}
h1{font-size:clamp(2.65rem,6.4vw,5.1rem);line-height:.99;font-variation-settings:"opsz" 100}
h1 em{font-style:italic;color:var(--ember)}
h2{font-size:clamp(1.95rem,3.9vw,3.35rem);line-height:1.03;font-variation-settings:"opsz" 72}
h3{font-size:1.32rem;line-height:1.15}
.eyebrow{
  text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:600;
  color:var(--ember);margin:0 0 14px;
}
.eyebrow-light{color:var(--amber)}
.lede{font-size:clamp(1.06rem,1.6vw,1.3rem);color:var(--ink-soft);max-width:34em;margin:18px 0 0}
.lede-light{color:rgba(255,246,239,.78)}
.lede-dark{color:rgba(34,22,15,.78)}

/* --------------------------------------------------------------- chrome --- */
.nav{
  position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:28px;
  padding:14px clamp(18px,4vw,44px);
  background:rgba(255,246,239,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-size:1.22rem}
.brand-mark{width:26px;height:26px;color:var(--ink);flex:none}
.wordmark{display:inline-flex;align-items:baseline;gap:.28em;line-height:1}
.wm-pets{font-family:"General Sans",system-ui,sans-serif;font-weight:400;letter-spacing:.06em;color:var(--ink-soft)}
.wm-with{font-family:"Fraunces",Georgia,serif;font-weight:700;letter-spacing:-.03em;color:inherit}
.wm-sub{font-family:"General Sans",system-ui,sans-serif;font-weight:400;font-size:.7em;letter-spacing:0;color:var(--ink-soft)}
.nav-links{display:flex;gap:22px;margin-left:auto}
.nav-links a{text-decoration:none;font-size:.95rem;color:var(--ink-soft);transition:color .15s ease}
.nav-links a:hover{color:var(--ink)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font:inherit;font-weight:600;font-size:1rem;text-decoration:none;
  border-radius:999px;border:1px solid transparent;padding:15px 26px;cursor:pointer;
  transition:transform .18s var(--spring), background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:active{transform:scale(.97)}
.btn-ember{background:var(--ember);color:var(--cream)}
.btn-ember:hover{background:#F0300F}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--paper);border-color:rgba(34,22,15,.22)}
.btn-ink{background:var(--ink);color:var(--cream)}
.btn-ink:hover{background:#3A2A1E}
.btn-small{padding:10px 18px;font-size:.92rem}
@media (max-width:820px){.nav-links{display:none}}

/* ---------------------------------------------------------------- hero --- */
.hero{position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-20% -10% auto;height:70%;pointer-events:none;
  background:
    radial-gradient(900px 520px at 62% 18%, rgba(255,159,28,.20), transparent 62%),
    radial-gradient(700px 420px at 18% 8%, rgba(255,61,31,.08), transparent 70%);
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:clamp(24px,4vw,60px);
  align-items:center;padding-top:clamp(48px,7vw,96px);padding-bottom:clamp(36px,5vw,64px);
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero-note{margin:22px 0 0;font-size:.92rem;color:var(--ink-soft)}
.hero-caption{
  position:relative;text-align:center;font-size:.85rem;color:var(--ink-soft);
  padding:0 20px 26px;margin:0;
}
.hero-visual{position:relative;min-height:560px}
.hero-3d{position:absolute;inset:-40px -30px;width:calc(100% + 60px);height:calc(100% + 80px);z-index:0;pointer-events:none}
.phone{
  position:relative;z-index:2;width:min(320px,78%);margin:0 auto;
  background:linear-gradient(160deg,#FFFDF9,#F6E9DC);
  border-radius:48px;padding:14px;box-shadow:var(--shadow);
  border:1px solid rgba(34,22,15,.08);
}
.phone-screen{
  position:relative;border-radius:36px;overflow:hidden;background:var(--cream);
  aspect-ratio:9/19.2;
}
.phone-screen iframe{width:100%;height:100%;border:0}
.chip{
  position:absolute;z-index:3;display:inline-flex;align-items:center;gap:9px;
  background:var(--paper);border:1px solid var(--line);border-radius:999px;
  padding:9px 15px;font-size:.86rem;font-weight:600;box-shadow:0 10px 26px -12px rgba(120,60,30,.35);
  font-variant-numeric:tabular-nums; animation:float 7s ease-in-out infinite;
}
.chip .dot{width:9px;height:9px;border-radius:50%}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%}
.dot-amber{background:var(--amber);box-shadow:0 0 0 4px rgba(255,159,28,.22)}
.dot-teal{background:var(--link);box-shadow:0 0 0 4px rgba(14,124,134,.18)}
.chip-a{top:9%;left:0;animation-delay:.2s}
.chip-b{top:26%;right:-4px;animation-delay:1.4s}
.chip-c{bottom:12%;left:-6px;animation-delay:2.6s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}

/* -------------------------------------------------------------- bands --- */
section{padding:clamp(70px,9vw,132px) 0}
.band-dark{background:var(--ink);color:var(--cream)}
.band-dark::before{content:none}
.band-cream{background:var(--cream)}
.band-paper{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-ember{background:var(--ember)}

/* -------------------------------------------------------------- collar --- */
.collar-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(26px,4vw,64px);align-items:center}
.specs{margin:34px 0 30px;display:grid;grid-template-columns:1fr 1fr;gap:0 34px}
.specs div{display:flex;flex-direction:column;padding:13px 0;border-bottom:1px solid rgba(255,246,239,.14)}
.specs dt{font-size:.76rem;text-transform:uppercase;letter-spacing:.13em;color:var(--amber);font-weight:600}
.specs dd{margin:3px 0 0;font-size:.98rem;color:rgba(255,246,239,.86)}
.callout{
  border-left:2px solid var(--amber);padding:4px 0 4px 18px;margin:18px 0 0;
  color:rgba(255,246,239,.82);font-size:.97rem;max-width:30em;
}
.callout strong{color:var(--cream);display:block;font-weight:600}
.collar-3dwrap{position:relative;aspect-ratio:1/1;min-height:380px}
.collar-3d{position:absolute;inset:0;width:100%;height:100%;cursor:grab;touch-action:none}
.collar-3d:active{cursor:grabbing}
.collar-hint{
  position:absolute;bottom:6px;left:0;right:0;text-align:center;margin:0;
  font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,246,239,.42);
}

/* ----------------------------------------------------------------- pet --- */
.section-head{max-width:640px;margin-bottom:clamp(30px,4.5vw,56px)}
.pet-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:clamp(18px,2.4vw,30px);align-items:stretch}
.pet-card{
  margin:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
}
.pet-card video{width:100%;aspect-ratio:1/1;object-fit:cover;background:#F4E7DA}
.pet-card figcaption{
  display:flex;align-items:center;gap:9px;padding:13px 16px;font-size:.86rem;color:var(--ink-soft);
  border-top:1px solid var(--line);
}
.pet-copy{display:flex;flex-direction:column;justify-content:center;padding:clamp(6px,1.6vw,20px) 4px}
.pet-copy p{color:var(--ink-soft);margin:14px 0 0;font-size:1rem}
.pet-note{font-size:.9rem !important;border-top:1px solid var(--line);padding-top:14px}

/* ------------------------------------------------------------------ care --- */
.care-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2vw,26px)}
.care-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px 28px;box-shadow:0 14px 34px -20px rgba(120,60,30,.28);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease);
}
.care-card:hover{transform:translateY(-4px);box-shadow:0 22px 44px -20px rgba(120,60,30,.35)}
.care-card h3{margin:18px 0 10px}
.care-card p{margin:0;font-size:.95rem;color:var(--ink-soft)}
.care-glyph{width:46px;height:46px;border-radius:16px}
.glyph-amber{background:radial-gradient(circle at 32% 30%, #FFE1B0, var(--amber))}
.glyph-ember{background:radial-gradient(circle at 32% 30%, #FFB3A3, var(--ember))}
.glyph-teal{background:radial-gradient(circle at 32% 30%, #A9DEDA, var(--link))}
.glyph-ink{background:radial-gradient(circle at 32% 30%, #6B5647, var(--ink))}

/* ----------------------------------------------------------------- vets --- */
.vet-band{
  display:grid;grid-template-columns:1.4fr auto;gap:clamp(24px,4vw,60px);align-items:center;
  background:var(--paper);border:1px solid var(--line);border-radius:calc(var(--radius) + 8px);
  padding:clamp(30px,4.5vw,64px);box-shadow:var(--shadow);
}
.vet-band-cta{text-align:center}
.vet-band-cta .micro{margin-top:12px}

/* -------------------------------------------------------------- waitlist --- */
.waitlist-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(24px,4vw,60px);align-items:center}
.band-ember h2{color:var(--ink)}
.waitlist-form{display:flex;gap:12px;flex-wrap:wrap;position:relative}
.waitlist-form input[type=email]{
  flex:1 1 240px;font:inherit;padding:15px 20px;border-radius:999px;
  border:2px solid rgba(34,22,15,.25);background:var(--paper);color:var(--ink);
}
.waitlist-form input[type=email]:focus{outline:2px solid var(--ink);outline-offset:1px}
.waitlist-form button{flex:0 0 auto}
.wl-status{flex-basis:100%;margin:4px 2px 0;font-size:.92rem;min-height:1.4em;color:rgba(34,22,15,.85);font-weight:500}

/* ------------------------------------------------------------------ faq --- */
.faq-wrap{max-width:820px}
.faq-wrap h2{margin-bottom:26px}
details{border-bottom:1px solid var(--line);padding:6px 0}
summary{
  cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;
  gap:18px;padding:18px 2px;font-weight:600;font-size:1.08rem;
}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:"Fraunces",serif;font-size:1.5rem;color:var(--ember);transition:transform .2s var(--spring)}
details[open] summary::after{transform:rotate(45deg)}
details p{margin:0 2px 20px;color:var(--ink-soft);max-width:60ch}

/* --------------------------------------------------------------- footer --- */
.footer{background:var(--ink);color:rgba(255,246,239,.8);padding:clamp(40px,5vw,64px) 0}
.footer .brand{color:var(--cream)}
.footer .brand-mark{color:var(--cream)}
.footer .wm-pets{color:rgba(255,246,239,.62)}
.footer .wm-with{color:var(--cream)}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:start}
.footer .micro{color:rgba(255,246,239,.55);margin-top:10px}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;justify-content:flex-end}
.footer-links a{text-decoration:none;font-size:.94rem;color:rgba(255,246,239,.75)}
.footer-links a:hover{color:var(--cream)}
.footer-legal{grid-column:1/-1;border-top:1px solid rgba(255,246,239,.12);padding-top:18px;margin:8px 0 0}

/* -------------------------------------------------------------- reveals --- */
.no-js [data-reveal]{opacity:1;transform:none}
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .7s var(--ease), transform .7s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
.collar-3dwrap::before{
  content:"";position:absolute;inset:10%;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle, rgba(255,159,28,.14), rgba(255,159,28,.04) 46%, transparent 64%);
}

/* ------------------------------------------------------------ responsive --- */
@media (max-width:1080px){
  .care-grid{grid-template-columns:repeat(2,1fr)}
  .pet-grid{grid-template-columns:1fr 1fr}
  .pet-copy{grid-column:1/-1;padding-top:26px}
}
@media (max-width:900px){
  .hero-grid,.collar-grid,.waitlist-grid,.vet-band{grid-template-columns:1fr}
  .hero-visual{min-height:520px;order:2}
  .hero-3d{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-links{justify-content:flex-start}
  .vet-band-cta{text-align:left}
}
@media (max-width:620px){
  .care-grid,.pet-grid,.specs{grid-template-columns:1fr}
  .hero-visual{min-height:480px}
  .chip-c{display:none}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  [data-reveal]{opacity:1;transform:none}
  html{scroll-behavior:auto}
}