/* =========================================================
   Sidewalk Medic — style.css
   Palette: red / white / grey / black only
   ========================================================= */

:root{
  --red:#e2141b;
  --red-dark:#b70f15;
  --red-ink:#7d0a0e;
  --black:#111214;
  --ink:#1a1c1f;
  --grey-900:#232629;
  --grey-700:#4a4f55;
  --grey-500:#7a8087;
  --grey-300:#c7ccd1;
  --grey-150:#e7eaed;
  --grey-100:#f1f3f5;
  --grey-50:#f7f8f9;
  --white:#ffffff;

  --maxw:1200px;
  --gutter:clamp(20px,5vw,64px);
  --radius:18px;
  --radius-sm:12px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 24px 60px -24px rgba(17,18,20,.32);
  --shadow-sm:0 10px 30px -16px rgba(17,18,20,.28);
  --nav-h:76px;

  --font-display:'Space Grotesk',system-ui,sans-serif;
  --font-body:'Inter',system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{
  font-family:var(--font-body);color:var(--ink);background:var(--white);
  line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img,svg{display:block}
img{max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--red);color:#fff}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.04;letter-spacing:-.02em;color:var(--black)}
h2{font-size:clamp(2rem,4.6vw,3.4rem)}
h3{font-size:clamp(1.25rem,2vw,1.6rem);letter-spacing:-.01em}
p{color:var(--grey-700)}
em{font-style:normal;color:var(--red)}
.i{width:1em;height:1em;flex-shrink:0}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--font-display);font-weight:600;font-size:.98rem;
  padding:.95em 1.7em;border-radius:100px;border:1.5px solid transparent;cursor:pointer;
  transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease),box-shadow .3s var(--ease);
  letter-spacing:-.01em;
}
.btn--sm{padding:.6em 1.2em;font-size:.9rem}
.btn--red{background:var(--red);color:#fff;box-shadow:0 12px 28px -12px rgba(226,20,27,.8)}
.btn--red:hover{background:var(--red-dark);transform:translateY(-3px);box-shadow:0 18px 36px -12px rgba(226,20,27,.85)}
.btn--dark{background:var(--black);color:#fff}
.btn--dark:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.btn--white{background:#fff;color:var(--black)}
.btn--white:hover{transform:translateY(-3px);box-shadow:0 18px 36px -14px rgba(0,0,0,.4)}
.btn--ghost{border-color:var(--grey-300);color:var(--ink)}
.btn--ghost:hover{border-color:var(--ink);transform:translateY(-3px)}
.btn--ghost-light{border-color:rgba(255,255,255,.55);color:#fff}
.btn--ghost-light:hover{background:#fff;color:var(--black);transform:translateY(-3px)}

.link-arrow{display:inline-flex;align-items:center;gap:.5em;font-family:var(--font-display);font-weight:600;color:var(--red);font-size:1rem}
.link-arrow span{transition:transform .3s var(--ease)}
.link-arrow:hover span{transform:translateX(6px)}
.link-arrow--light{color:#fff;justify-content:center;margin-top:.9rem}

.eyebrow{
  display:inline-block;font-family:var(--font-display);font-weight:600;font-size:.78rem;
  letter-spacing:.22em;text-transform:uppercase;color:var(--red);
  margin-bottom:1.1rem;position:relative;padding-left:2.6rem;
}
.eyebrow::before{content:"";position:absolute;left:0;top:50%;width:2rem;height:2px;background:var(--red)}
.hl{color:var(--red)}

/* ---------- Sections ---------- */
.section{padding:clamp(72px,10vw,132px) 0}
.section--tint{background:var(--grey-50)}
.section--dark{background:var(--black)}
.section__head{max-width:760px;margin-bottom:clamp(40px,6vw,68px)}
.section__lead{font-size:1.15rem;margin-top:1rem;max-width:60ch}
.section__head--split{display:flex;flex-wrap:wrap;gap:2rem 3rem;align-items:flex-end;justify-content:space-between;max-width:none}
.section__head--split h2{max-width:15ch}
.section__head-note{max-width:46ch;font-size:1.05rem;color:var(--grey-700)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}

/* =========================================================
   NAV  (dark text over light backgrounds)
   ========================================================= */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .4s var(--ease),box-shadow .4s var(--ease)}
.nav__inner{display:flex;align-items:center;gap:1.5rem;max-width:var(--maxw);margin:0 auto;
  padding:1rem var(--gutter);transition:padding .4s var(--ease)}
.nav.is-solid{background:rgba(255,255,255,.9);backdrop-filter:blur(16px);box-shadow:0 1px 0 var(--grey-150)}
.nav.is-solid .nav__inner{padding-top:.7rem;padding-bottom:.7rem}

.brand{display:flex;align-items:center;gap:.62rem}
.brand__mark svg{width:38px;height:38px;border-radius:12px;box-shadow:0 8px 18px -8px rgba(226,20,27,.7);transition:transform .4s var(--ease)}
.brand:hover .brand__mark svg{transform:rotate(-6deg) scale(1.05)}
.brand__word{font-family:var(--font-display);font-weight:700;font-size:1.18rem;letter-spacing:-.03em;color:var(--ink)}
.brand__word b{color:var(--red);font-weight:700}

.nav__links{display:flex;gap:1.75rem;margin-left:auto}
.nav__links a{font-family:var(--font-display);font-weight:500;font-size:.95rem;color:var(--grey-900);position:relative;padding:.2em 0}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--red);transition:width .3s var(--ease)}
.nav__links a:hover::after,.nav__links a.is-active::after{width:100%}
.nav__links a.is-active{color:var(--red)}
.nav__cta{margin-left:.25rem}
.nav__burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav__burger span{width:26px;height:2.5px;background:var(--grey-900);border-radius:2px;transition:.35s var(--ease)}
.nav__burger.is-x span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav__burger.is-x span:nth-child(2){opacity:0}
.nav__burger.is-x span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* =========================================================
   HERO (home) — clean, light, live monitor
   ========================================================= */
.hero{position:relative;padding-top:calc(var(--nav-h) + 4vh);padding-bottom:6vh;overflow:hidden;
  background:
    radial-gradient(120% 120% at 100% 0%, #fbfbfc 0%, #f4f5f6 45%, #eef0f2 100%);
}
.hero::before{content:"";position:absolute;top:-20%;right:-10%;width:52%;height:120%;
  background:radial-gradient(closest-side,rgba(226,20,27,.08),transparent 70%);pointer-events:none}
.hero__inner{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,64px);align-items:center;
  min-height:calc(96svh - var(--nav-h))}
.hero__title{font-size:clamp(2.9rem,6.8vw,5.6rem);color:var(--black);margin:.4rem 0 1.4rem;line-height:.98}
.hero__title em{color:var(--red)}
.reveal-line{display:block;overflow:hidden}
.reveal-line>span{display:block;transform:translateY(110%);animation:lineUp .95s var(--ease) forwards}
.reveal-line:nth-child(1)>span{animation-delay:.15s}
.reveal-line:nth-child(2)>span{animation-delay:.3s}
@keyframes lineUp{to{transform:translateY(0)}}
.hero__sub{font-size:clamp(1.05rem,1.5vw,1.3rem);color:var(--grey-700);max-width:46ch;margin-bottom:2rem}
.hero__actions{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:2.4rem}
.hero__trust{display:flex;align-items:center;gap:1.4rem;flex-wrap:wrap;color:var(--grey-500);font-size:.9rem}
.hero__trust b{font-family:var(--font-display);color:var(--ink);font-size:1.15rem;margin-right:.35rem}
.hero__trust .div{width:1px;height:26px;background:var(--grey-150)}

/* Monitor visual */
.monitor{position:relative;background:linear-gradient(160deg,#1c1f22,#0c0d0f);border-radius:26px;
  padding:1.4rem 1.4rem 1.6rem;box-shadow:0 40px 90px -40px rgba(0,0,0,.65),inset 0 0 0 1px rgba(255,255,255,.05);
  color:#fff;overflow:hidden}
.monitor__bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.monitor__live{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-display);font-size:.72rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--grey-300)}
.monitor__live i{width:9px;height:9px;border-radius:50%;background:var(--red);box-shadow:0 0 0 0 rgba(226,20,27,.6);animation:liveDot 1.2s var(--ease) infinite}
@keyframes liveDot{0%{box-shadow:0 0 0 0 rgba(226,20,27,.55)}70%{box-shadow:0 0 0 8px rgba(226,20,27,0)}100%{box-shadow:0 0 0 0 rgba(226,20,27,0)}}
.monitor__tag{font-family:var(--font-display);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--grey-500)}

.ecg{position:relative;height:130px;border-radius:14px;background:
  linear-gradient(#0a0b0c,#0a0b0c) padding-box,
  repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 26px),
  repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 26px);
  overflow:hidden;margin-bottom:1.1rem}
.ecg__track{position:absolute;inset:0;width:200%;display:flex;animation:ecgScroll 5s linear infinite}
.ecg__track svg{width:50%;height:100%}
.ecg__track path{fill:none;stroke:var(--red);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;
  filter:drop-shadow(0 0 6px rgba(226,20,27,.75))}
@keyframes ecgScroll{to{transform:translateX(-50%)}}
.ecg__flash{position:absolute;inset:0;background:radial-gradient(120px 120px at 50% 50%,rgba(226,20,27,.18),transparent 70%);
  opacity:0;animation:ecgFlash 12s ease-in-out infinite}
@keyframes ecgFlash{0%,88%,100%{opacity:0}92%{opacity:1}96%{opacity:.2}}

.monitor__stats{display:grid;grid-template-columns:1fr 1fr 1fr;gap:.7rem}
.mstat{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:.8rem .9rem}
.mstat span{display:block;font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--grey-500);margin-bottom:.2rem}
.mstat b{font-family:var(--font-display);font-size:1.5rem;font-weight:700}
.mstat b small{font-size:.62rem;color:var(--grey-500);font-weight:500;letter-spacing:.08em}
.mstat--ok b{color:#fff}
.mstat__bar{height:6px;border-radius:6px;background:rgba(255,255,255,.1);margin-top:.5rem;overflow:hidden}
.mstat__bar i{display:block;height:100%;width:60%;background:var(--red);border-radius:6px;animation:depthPump 1.05s var(--ease) infinite}
@keyframes depthPump{0%,100%{width:42%}50%{width:82%}}

/* =========================================================
   PAGE HERO (subpages)
   ========================================================= */
.page-hero{position:relative;padding:calc(var(--nav-h) + 5vh) 0 clamp(40px,6vw,72px);
  background:radial-gradient(120% 130% at 100% 0%, #fafbfb 0%, #f2f3f5 60%, #edeff1 100%);overflow:hidden}
.page-hero::before{content:"";position:absolute;top:-30%;right:-6%;width:44%;height:150%;
  background:radial-gradient(closest-side,rgba(226,20,27,.09),transparent 70%)}
.page-hero__inner{position:relative;max-width:820px}
.page-hero h1{font-size:clamp(2.4rem,6vw,4.2rem);color:var(--black);margin:.4rem 0 1rem}
.page-hero h1 em{color:var(--red)}
.page-hero p{font-size:clamp(1.05rem,1.6vw,1.3rem);max-width:56ch}
.page-hero__ekg{position:absolute;left:0;right:0;bottom:0;height:70px;width:100%;opacity:.5}
.page-hero__ekg path{fill:none;stroke:var(--grey-300);stroke-width:2;
  stroke-dasharray:2600;stroke-dashoffset:2600;animation:ekgSweep 12s var(--ease) infinite}
@keyframes ekgSweep{0%{stroke-dashoffset:2600}25%,100%{stroke-dashoffset:0}}

/* =========================================================
   STATS
   ========================================================= */
.stats{background:var(--black);color:#fff;padding:clamp(48px,6vw,74px) 0}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}
.stat{text-align:center;position:relative}
.stat:not(:last-child)::after{content:"";position:absolute;right:-1rem;top:15%;height:70%;width:1px;background:rgba(255,255,255,.14)}
.stat__num{font-family:var(--font-display);font-weight:700;font-size:clamp(2.4rem,5vw,3.6rem);line-height:1;color:#fff}
.stat__num .u{color:var(--red)}
.stat__label{margin-top:.6rem;font-size:.9rem;letter-spacing:.06em;text-transform:uppercase;color:var(--grey-300)}

/* =========================================================
   FEATURE / MISSION
   ========================================================= */
.figure{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.figure img{width:100%;aspect-ratio:4/3.4;object-fit:cover;transition:transform .8s var(--ease)}
.figure:hover img{transform:scale(1.05)}
.figure__badge{position:absolute;left:1.1rem;bottom:1.1rem;right:1.1rem;background:rgba(255,255,255,.95);
  backdrop-filter:blur(6px);border-radius:12px;padding:.9rem 1.1rem;display:flex;flex-direction:column;gap:.15rem;box-shadow:var(--shadow-sm)}
.figure__badge strong{font-family:var(--font-display);color:var(--red);font-size:.95rem}
.figure__badge span{font-size:.85rem;color:var(--grey-700)}
.prose p{margin-bottom:1.1rem;font-size:1.08rem}
.prose .link-arrow{margin-top:.5rem}

/* =========================================================
   CARDS (what we do)
   ========================================================= */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.card{background:#fff;border:1px solid var(--grey-150);border-radius:var(--radius);padding:2.2rem 2rem 2.4rem;
  position:relative;overflow:hidden;transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease)}
.card::before{content:"";position:absolute;left:0;top:0;height:4px;width:0;background:var(--red);transition:width .5s var(--ease)}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:transparent}
.card:hover::before{width:100%}
.card__icon{width:52px;height:52px;border-radius:14px;background:rgba(226,20,27,.1);color:var(--red);
  display:flex;align-items:center;justify-content:center;margin-bottom:1.3rem}
.card__icon .i{width:26px;height:26px}
.card__num{font-family:var(--font-display);font-weight:700;font-size:.85rem;color:var(--red);letter-spacing:.1em;margin-bottom:.6rem}
.card h3{margin-bottom:.7rem}
.card p{font-size:1rem}
.card__list{list-style:none;margin-top:1.4rem;display:flex;flex-direction:column;gap:.55rem}
.card__list li{position:relative;padding-left:1.7rem;font-size:.95rem;color:var(--grey-900)}
.card__list li::before{content:"";position:absolute;left:0;top:.35em;width:12px;height:12px;background:var(--red);
  clip-path:polygon(40% 0,60% 0,60% 40%,100% 40%,100% 60%,60% 60%,60% 100%,40% 100%,40% 60%,0 60%,0 40%,40% 40%)}
.card__link{margin-top:1.5rem}

/* =========================================================
   PRODUCTS
   ========================================================= */
.product{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,80px);align-items:center;
  padding:clamp(36px,5vw,60px) 0;border-top:1px solid var(--grey-150)}
.product:first-child{border-top:0}
.product--reverse .product__info{order:2}
.tag{display:inline-block;font-family:var(--font-display);font-weight:600;font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--red);border:1px solid var(--grey-300);border-radius:100px;padding:.35em 1em;margin-bottom:1.2rem}
.product__info h3{font-size:clamp(1.7rem,3vw,2.5rem);margin-bottom:1rem}
.product__info>p{font-size:1.1rem;max-width:46ch}
.product__meta{display:flex;gap:2rem;margin-top:1.8rem;flex-wrap:wrap}
.product__meta div{display:flex;flex-direction:column}
.product__meta strong{font-family:var(--font-display);color:var(--black);font-size:1.15rem}
.product__meta span{font-size:.85rem;color:var(--grey-500)}
.product__visual{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:5/4;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}
.product__visual--photo{background:var(--grey-100)}
.product__visual--photo img{width:100%;height:100%;object-fit:cover}

/* Watch mock */
.product__visual--watch{background:radial-gradient(circle at 50% 38%,#2a2d31,#0f1113)}
.watch{width:184px;height:222px;background:#0a0b0c;border-radius:46px;padding:14px;
  box-shadow:0 30px 60px -20px rgba(0,0,0,.7),inset 0 0 0 2px #2c2f33}
.watch__screen{width:100%;height:100%;background:#000;border-radius:34px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:.35rem;position:relative;overflow:hidden}
.watch__rate{font-family:var(--font-display);color:#fff;font-weight:700;font-size:2.4rem;line-height:1;display:flex;align-items:baseline;gap:3px}
.watch__rate small{font-size:.7rem;color:var(--grey-500);font-weight:500}
.watch__ring{position:relative;width:70px;height:70px}
.watch__ring svg{transform:rotate(-90deg)}
.ring-bg{fill:none;stroke:#26292d;stroke-width:8}
.ring-fg{fill:none;stroke:var(--red);stroke-width:8;stroke-linecap:round;stroke-dasharray:327;stroke-dashoffset:82;animation:ringPulse 1.05s var(--ease) infinite}
@keyframes ringPulse{0%,100%{stroke-dashoffset:120}50%{stroke-dashoffset:40}}
.watch__pulse{position:absolute;inset:0;margin:auto;width:14px;height:14px;background:var(--red);border-radius:50%;animation:beat 1.05s var(--ease) infinite}
@keyframes beat{0%,100%{transform:scale(.8);opacity:.7}50%{transform:scale(1.35);opacity:1}}
.watch__depth{font-family:var(--font-display);font-size:.72rem;color:var(--grey-300);letter-spacing:.05em}
.watch__depth b{color:#fff}

/* Bleeding trainer — SVG animation */
.product__visual--bleed{background:radial-gradient(circle at 50% 30%,#202327,#0e0f11)}
.bleed{width:100%;height:100%;display:flex;align-items:center;justify-content:center;position:relative}
.bleed svg{width:78%;max-width:320px;height:auto;overflow:visible}
.bleed .foam{fill:#eceef0}
.bleed .foam-sh{fill:#d7dade}
.bleed .wound{fill:var(--red-ink);transform-origin:center;animation:woundGlow 2.6s var(--ease) infinite}
@keyframes woundGlow{0%,100%{filter:drop-shadow(0 0 2px rgba(226,20,27,.5))}50%{filter:drop-shadow(0 0 9px rgba(226,20,27,.95))}}
.bleed .drop{fill:var(--red);transform-box:fill-box;transform-origin:center top;opacity:0}
.bleed .d1{animation:drip 2.4s var(--ease) infinite}
.bleed .d2{animation:drip 2.4s var(--ease) .9s infinite}
.bleed .d3{animation:drip 2.4s var(--ease) 1.7s infinite}
@keyframes drip{
  0%{opacity:0;transform:translateY(0) scaleY(.6)}
  12%{opacity:1;transform:translateY(6px) scaleY(1.15)}
  70%{opacity:1;transform:translateY(74px) scaleY(1.3)}
  85%{opacity:1;transform:translateY(88px) scaleY(.8)}
  100%{opacity:0;transform:translateY(90px) scaleY(.6)}
}
.bleed .ripple{fill:none;stroke:var(--red);stroke-width:2;opacity:0;transform-box:fill-box;transform-origin:center;transform:scale(.3)}
.bleed .r1{animation:ripple 2.4s var(--ease) .75s infinite}
.bleed .r2{animation:ripple 2.4s var(--ease) 1.6s infinite}
@keyframes ripple{0%{opacity:0;transform:scale(.3)}20%{opacity:.85}100%{opacity:0;transform:scale(1.5)}}
.bleed .pool{fill:var(--red-ink);opacity:.9}
.bleed__cap{position:absolute;bottom:1.1rem;left:0;right:0;text-align:center;color:var(--grey-300);
  font-family:var(--font-display);font-size:.9rem;letter-spacing:.03em}

/* CPR mannequin — SVG side view compression animation */
.product__visual--cpr{background:radial-gradient(circle at 50% 30%,#202327,#0e0f11)}
.cpr{width:100%;height:100%;display:flex;align-items:center;justify-content:center;position:relative}
.cpr svg{width:82%;max-width:340px;height:auto;overflow:visible}
.cpr .body circle,.cpr .body path{fill:#d7dade}
.cpr .body-sh circle,.cpr .body-sh path{fill:#b7bcc1}
.cpr .arm{fill:#cbcfd4}
.cpr .hand-base{fill:#e4e7ea}
.cpr .hand-top{fill:#f6f7f8}
.cpr .knuckle{stroke:#cdd1d5;stroke-width:1.6;stroke-linecap:round}
.cpr .hands{animation:cprPress 1.05s var(--ease) infinite}
@keyframes cprPress{0%,100%{transform:translateY(0)}45%{transform:translateY(16px)}}
.cpr .pulse-ring{fill:none;stroke:var(--red);stroke-width:2.5;transform-box:fill-box;transform-origin:center;opacity:0;animation:cprRing 1.05s var(--ease) infinite}
@keyframes cprRing{0%,42%{opacity:0;transform:scale(.5)}54%{opacity:.85;transform:scale(1)}100%{opacity:0;transform:scale(1.85)}}
.cpr .gauge-track{fill:rgba(255,255,255,.12)}
.cpr .gauge-zone{fill:rgba(226,20,27,.5)}
.cpr .gauge-marker{fill:#fff;transform-box:fill-box;animation:cprMarker 1.05s var(--ease) infinite}
@keyframes cprMarker{0%,100%{transform:translateY(0)}45%{transform:translateY(60px)}}

/* =========================================================
   RESEARCH
   ========================================================= */
.research-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.paper{background:#fff;border:1px solid var(--grey-150);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.paper:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.paper__thumb{position:relative;display:block;overflow:hidden;background:#0e2a5c;aspect-ratio:4/3}
.paper__thumb img{width:100%;height:100%;object-fit:cover;object-position:top center;transition:transform .6s var(--ease)}
.paper:hover .paper__thumb img{transform:scale(1.06)}
.paper__open{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:.4rem;
  background:rgba(17,18,20,.55);color:#fff;font-family:var(--font-display);font-weight:600;opacity:0;transition:opacity .35s var(--ease)}
.paper__thumb:hover .paper__open{opacity:1}
.paper__body{padding:1.5rem 1.5rem 1.7rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.paper__body .tag{margin-bottom:.4rem}
.paper__body h3{font-size:1.12rem;line-height:1.2}
.paper__authors{font-size:.86rem;color:var(--red);font-weight:600;margin-bottom:.2rem}
.paper__body p{font-size:.94rem}
.paper__body .link-arrow{margin-top:auto;padding-top:.8rem;font-size:.92rem}

/* =========================================================
   CHAPTERS
   ========================================================= */
.marquee{overflow:hidden;background:var(--red);color:#fff;padding:.9rem 0;margin:0 0 3.5rem;transform:rotate(-1.4deg) scale(1.04)}
.marquee__track{display:flex;gap:2.5rem;white-space:nowrap;width:max-content;animation:marquee 26s linear infinite}
.marquee__track span{font-family:var(--font-display);font-weight:700;font-size:1.35rem;text-transform:uppercase}
.marquee__track i{font-style:normal;opacity:.6}
@keyframes marquee{to{transform:translateX(-50%)}}
.chapter-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.chip{position:relative;background:#fff;border:1px solid var(--grey-150);border-radius:14px;padding:1.3rem;overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s}
.chip::before{content:"";position:absolute;inset:0;background:var(--red);transform:translateY(101%);transition:transform .4s var(--ease);z-index:0}
.chip:hover{transform:translateY(-5px);box-shadow:var(--shadow-sm);border-color:transparent}
.chip:hover::before{transform:translateY(0)}
.chip>*{position:relative;z-index:1;transition:color .35s var(--ease)}
.chip__name{font-family:var(--font-display);font-weight:600;font-size:1.15rem;color:var(--black);padding-right:5rem}
.chip__loc{font-size:.85rem;color:var(--grey-500);margin-top:.2rem}
.chip__tag{position:absolute;top:1.1rem;right:1.1rem;z-index:1;font-size:.62rem;font-family:var(--font-display);font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--red);border:1px solid var(--grey-300);border-radius:100px;padding:.2em .6em}
.chip:hover .chip__name,.chip:hover .chip__loc{color:#fff}
.chip:hover .chip__tag{color:#fff;border-color:rgba(255,255,255,.6)}

/* =========================================================
   FOUNDERS
   ========================================================= */
.founder-grid{display:grid;grid-template-columns:repeat(3,minmax(0,320px));justify-content:center;gap:1.4rem}
.founder{background:#fff;border:1px solid var(--grey-150);border-radius:var(--radius);padding:2rem 1.6rem;text-align:center;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.founder:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.founder__avatar{width:88px;height:88px;margin:0 auto 1.2rem;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:700;font-size:1.9rem;color:#fff;background:linear-gradient(150deg,var(--red),var(--red-dark));position:relative}
.founder__avatar::after{content:"";position:absolute;inset:-5px;border:1.5px solid var(--grey-150);border-radius:50%}
.founder__name{font-family:var(--font-display);font-weight:600;font-size:1.2rem;color:var(--black)}
.founder__role{color:var(--red);font-size:.88rem;font-weight:600;margin-top:.15rem}
.founder__bio{font-size:.9rem;color:var(--grey-700);margin-top:.7rem}
.founder--join{background:var(--black);display:flex;flex-direction:column;justify-content:center}

/* =========================================================
   EVENTS
   ========================================================= */
.event-list{display:flex;flex-direction:column;border-top:1px solid var(--grey-150)}
.event{display:grid;grid-template-columns:130px 1fr auto;gap:1.5rem;align-items:center;padding:1.6rem 0;
  border-bottom:1px solid var(--grey-150);position:relative;transition:padding .35s var(--ease)}
.event::before{content:"";position:absolute;left:-100vw;right:-100vw;top:0;bottom:0;background:var(--grey-50);opacity:0;transition:opacity .35s;z-index:-1}
.event:hover{padding-left:1.2rem;padding-right:1.2rem}
.event:hover::before{opacity:1}
.event__date{display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--black);color:#fff;
  border-radius:12px;padding:.7rem;width:96px;height:96px;flex-shrink:0}
.event__date .m{font-family:var(--font-display);font-size:.8rem;letter-spacing:.15em;text-transform:uppercase;color:var(--red)}
.event__date .d{font-family:var(--font-display);font-weight:700;font-size:2rem;line-height:1}
.event__date .y{font-size:.72rem;color:var(--grey-500)}
.event__info h3{font-size:1.3rem;margin-bottom:.25rem}
.event__info p{font-size:.95rem}
.event__loc{display:inline-flex;align-items:center;gap:.4rem;font-size:.85rem;color:var(--grey-500);margin-top:.4rem}
.event__loc .i{width:15px;height:15px;color:var(--red)}
.event__cta{font-family:var(--font-display);font-weight:600;color:var(--red);white-space:nowrap;display:inline-flex;align-items:center;gap:.4rem}
.event__cta span{transition:transform .3s var(--ease)}
.event:hover .event__cta span{transform:translateX(5px)}

/* =========================================================
   CONTACT
   ========================================================= */
.contact__grid{align-items:start}
.contact__intro h2{margin-bottom:1rem}
.contact__intro p{font-size:1.1rem;max-width:38ch;margin-bottom:1.6rem}
.contact__email{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--font-display);font-weight:600;
  font-size:clamp(1.05rem,2vw,1.45rem);color:var(--red);border-bottom:2px solid transparent;transition:border-color .3s}
.contact__email:hover{border-color:var(--red)}
.contact__email .i{width:1.1em;height:1.1em}
.contact__cards{display:flex;flex-direction:column;gap:1rem}
.info-card{display:flex;gap:1.1rem;align-items:flex-start;background:var(--grey-50);border:1px solid var(--grey-150);border-radius:14px;
  padding:1.4rem 1.5rem;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.info-card__icon{flex-shrink:0;width:46px;height:46px;border-radius:12px;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center}
.info-card__icon .i{width:22px;height:22px}
.info-card h4{font-family:var(--font-display);font-size:1.05rem;margin-bottom:.25rem}
.info-card a{color:var(--red);font-weight:600;word-break:break-word}
.info-card p{font-size:.95rem}
.info-card__note{font-size:.82rem;color:var(--grey-500);margin-top:.35rem}

/* =========================================================
   LEGAL / PRIVACY
   ========================================================= */
.legal{max-width:780px}
.legal__meta{color:var(--grey-500);font-size:.92rem;margin-bottom:2.6rem}
.legal h2{font-size:clamp(1.3rem,2.4vw,1.7rem);margin:2.6rem 0 .8rem}
.legal h2:first-of-type{margin-top:0}
.legal p,.legal li{color:var(--grey-700);font-size:1.02rem;line-height:1.7}
.legal p{margin-bottom:1rem}
.legal ul{list-style:none;margin:0 0 1.2rem;display:flex;flex-direction:column;gap:.6rem}
.legal li{position:relative;padding-left:1.7rem}
.legal li::before{content:"";position:absolute;left:0;top:.55em;width:11px;height:11px;background:var(--red);
  clip-path:polygon(40% 0,60% 0,60% 40%,100% 40%,100% 60%,60% 60%,60% 100%,40% 100%,40% 60%,0 60%,0 40%,40% 40%)}
.legal a{color:var(--red);font-weight:600}
.legal a:hover{text-decoration:underline}

/* =========================================================
   CTA / DONATE
   ========================================================= */
.cta{background:var(--red);color:#fff;text-align:center;padding:clamp(72px,10vw,128px) 0;position:relative;overflow:hidden}
.cta__ekg{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);width:100%;height:80px;opacity:.4}
.cta__ekg path{fill:none;stroke:rgba(255,255,255,.55);stroke-width:2;stroke-dasharray:2600;stroke-dashoffset:2600;animation:ekgSweep 12s var(--ease) infinite}
.cta__inner{position:relative;z-index:1;max-width:760px;margin:0 auto}
.cta h2{color:#fff;font-size:clamp(2rem,5vw,3.6rem);margin-bottom:1.2rem}
.cta p{color:rgba(255,255,255,.9);font-size:1.1rem;max-width:52ch;margin:0 auto 2rem}
.cta__actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}

/* =========================================================
   FOOTER
   ========================================================= */
.footer{background:var(--black);color:var(--grey-300);padding:clamp(56px,7vw,88px) 0 2rem}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:2.5rem;padding-bottom:3rem;border-bottom:1px solid rgba(255,255,255,.1)}
.footer .brand__word{color:#fff}
.footer__brand .brand{margin-bottom:1.2rem}
.footer__brand p{font-size:.92rem;max-width:36ch;color:var(--grey-500)}
.footer__col h4{color:#fff;font-size:.95rem;margin-bottom:1.1rem}
.footer__col a{display:block;font-size:.92rem;color:var(--grey-300);margin-bottom:.65rem;transition:color .25s}
.footer__col a:hover{color:var(--red)}
.footer__bar{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem;padding-top:1.6rem;font-size:.82rem;color:var(--grey-500)}
.footer__bar-links{display:inline-flex;align-items:center;gap:1.2rem;flex-wrap:wrap}
.footer__bar-links a{color:var(--grey-300);transition:color .25s}
.footer__bar-links a:hover{color:var(--red)}

/* =========================================================
   REVEAL
   ========================================================= */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.cards .card:nth-child(2){transition-delay:.1s}
.cards .card:nth-child(3){transition-delay:.2s}
.research-grid .paper:nth-child(2){transition-delay:.1s}
.research-grid .paper:nth-child(3){transition-delay:.2s}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important;scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:1000px){
  .nav__links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:#fff;
    padding:.5rem var(--gutter) 1.2rem;box-shadow:var(--shadow);border-top:1px solid var(--grey-150)}
  .nav__links.is-open{display:flex}
  .nav__links a{padding:.9rem 0;border-bottom:1px solid var(--grey-100)}
  .nav__links a::after{display:none}
  .nav__burger{display:flex;margin-left:auto}
  .nav__cta{display:none}
  .nav{background:rgba(255,255,255,.9);backdrop-filter:blur(16px)}
  .hero__inner{grid-template-columns:1fr;gap:2.5rem;min-height:0}
  .hero{padding-top:calc(var(--nav-h) + 24px)}
  .monitor{max-width:440px}
  .cards,.research-grid{grid-template-columns:1fr 1fr}
  .chapter-grid{grid-template-columns:repeat(3,1fr)}
  .founder-grid{grid-template-columns:repeat(2,minmax(0,320px))}
  .stats__grid{grid-template-columns:repeat(2,1fr);gap:2.5rem 1rem}
  .stat:nth-child(2)::after{display:none}
}
@media (max-width:720px){
  .grid-2{grid-template-columns:1fr}
  .figure{order:-1}
  .cards,.research-grid{grid-template-columns:1fr}
  .product,.product--reverse .product__info{grid-template-columns:1fr;order:0}
  .product__visual{order:-1}
  .chapter-grid,.founder-grid{grid-template-columns:1fr 1fr}
  .event{grid-template-columns:70px 1fr;gap:1rem}
  .event__date{width:70px;height:70px}
  .event__cta{grid-column:2;justify-self:start}
  .stat:not(:last-child)::after{display:none}
  .section__head--split{flex-direction:column;align-items:flex-start}
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1/-1}
}
@media (max-width:440px){
  .chapter-grid,.founder-grid{grid-template-columns:1fr}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__trust{gap:.8rem}
}