/* ===== DiaFootCare landing — design system ===== */
:root{
  --navy:#0E2148; --navy-2:#0a1836;
  --cyan:#22b8e0; --blue:#3b82f6; --indigo:#5b5bd6;
  --ink:#0E2148; --body:#475569; --muted:#6b7a90;
  --bg:#ffffff; --bg-soft:#f4f8fc; --line:#e6edf5;
  --grad:linear-gradient(100deg,var(--cyan),var(--blue) 55%,var(--indigo));
  --grad-soft:linear-gradient(100deg,#e8f7fd,#eef3ff);
  --shadow:0 18px 50px -22px rgba(14,33,72,.28);
  --shadow-sm:0 8px 24px -14px rgba(14,33,72,.25);
  --radius:18px; --maxw:1160px;
  --font:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --head:"Sora",var(--font);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--body);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--head);color:var(--ink);line-height:1.12;margin:0}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--head);font-weight:600;font-size:15px;padding:11px 20px;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,background .2s}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px -10px rgba(59,130,246,.6)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(59,130,246,.7)}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn--ghost.on-dark{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.25)}
.btn--ghost.on-dark:hover{background:rgba(255,255,255,.16);color:#fff}
.btn--lg{padding:14px 26px;font-size:16px}

/* ===== NAV ===== */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s}
.nav.scrolled{border-color:var(--line);box-shadow:0 6px 24px -18px rgba(14,33,72,.5)}
.nav__inner{display:flex;align-items:center;gap:20px;height:70px}
.nav__logo{height:34px;width:auto}
.nav__links{display:flex;gap:26px;margin-left:14px;flex:1}
.nav__links a{font-weight:500;font-size:15px;color:var(--navy);opacity:.85;transition:opacity .2s,color .2s}
.nav__links a:hover{opacity:1;color:var(--blue)}
.nav__actions{display:flex;gap:10px}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.nav__toggle span{width:24px;height:2px;background:var(--navy);border-radius:2px;transition:.3s}

/* ===== HERO ===== */
.hero{position:relative;overflow:hidden;padding:72px 0 84px}
.hero__glow{position:absolute;inset:-30% -10% auto -10%;height:620px;background:radial-gradient(60% 60% at 70% 20%,rgba(34,184,224,.18),transparent 60%),radial-gradient(50% 50% at 20% 10%,rgba(91,91,214,.16),transparent 60%);pointer-events:none}
.hero__inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.pill{display:inline-flex;align-items:center;gap:8px;background:var(--grad-soft);color:#2456b6;font-weight:600;font-size:13.5px;padding:7px 14px;border-radius:999px;border:1px solid #dce8fb}
.pill__dot{width:8px;height:8px;border-radius:50%;background:var(--grad)}
.hero h1{font-size:clamp(34px,5vw,54px);font-weight:800;letter-spacing:-.02em;margin:20px 0 0}
.hero__sub{font-size:clamp(16px,1.6vw,19px);max-width:36em;margin:20px 0 0}
.hero__cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero__trust{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px;font-size:13.5px;color:var(--muted)}
.hero__trust strong{color:var(--ink);font-weight:600}
.hero__trust .dot{opacity:.5}
/* hero art — thermal scan card */
.hero__art{display:flex;justify-content:center}
.scancard{width:min(440px,100%);background:#0c1b3d;border:1px solid rgba(255,255,255,.08);border-radius:22px;padding:16px 16px 14px;box-shadow:var(--shadow)}
.scancard__top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;padding:0 2px}
.scancard__tag{color:#9fb4d8;font-size:12.5px;font-weight:500}
.scancard__live{display:inline-flex;align-items:center;gap:6px;color:#7fd7f0;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}
.scancard__live span{width:7px;height:7px;border-radius:50%;background:#37d67a;animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(55,214,122,.6)}70%{box-shadow:0 0 0 7px rgba(55,214,122,0)}100%{box-shadow:0 0 0 0 rgba(55,214,122,0)}}
.scan{display:flex;gap:12px;align-items:stretch}
.scan__img{position:relative;flex:1;border-radius:14px;overflow:hidden;background:radial-gradient(120% 120% at 50% 15%,#0e1f45,#0a1734)}
.scan__img img{width:100%;display:block}
.scanline2{position:absolute;left:6%;right:6%;height:2px;background:linear-gradient(90deg,transparent,#7fe3ff,transparent);box-shadow:0 0 10px #22b8e0;opacity:.8;animation:scan2 3.8s ease-in-out infinite}
@keyframes scan2{0%,100%{top:6%}50%{top:90%}}
.scan__bar{width:14px;display:flex;flex-direction:column;align-items:center;justify-content:space-between;color:#8096ba;font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:2px 0}
.scan__bar i{flex:1;width:8px;margin:6px 0;border-radius:4px;background:linear-gradient(to top,#173a86,#2f6df6 42%,#ffcf47 72%,#ff5236)}
.scan__legend{display:flex;justify-content:space-around;gap:10px;margin-top:12px}
.scan__legend .lg{font-size:13px;color:#dbe6f7}
.scan__legend .lg em{font-style:normal;font-family:var(--head);font-weight:700;font-size:11px;letter-spacing:.09em;color:#9fb4d8;margin-right:7px}
.scan__legend .lg--hot{color:#ff9a6b}
.scan__legend .lg--hot em{color:#ff9a6b}
.scancard__foot{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:12px;padding:2px 4px 0}
.delta{color:#cdd9f0;font-size:13px}
.delta__k{color:#ff9a6b;font-weight:700;font-family:var(--head);margin-right:2px}
.delta strong{color:#fff}
.risk{background:rgba(255,90,60,.15);color:#ff9a6b;border:1px solid rgba(255,90,60,.32);font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px}
.risk strong{color:#ffc2a6}

/* section headers */
.section__title{font-size:clamp(26px,3.4vw,38px);font-weight:700;letter-spacing:-.02em;text-align:center}
.section__lead{text-align:center;max-width:46em;margin:14px auto 0;font-size:17px;color:var(--muted)}
.on-dark{color:#fff}
.on-dark.section__lead{color:rgba(255,255,255,.75)}

/* ===== MATTERS (dark) ===== */
.matters{background:linear-gradient(160deg,var(--navy),var(--navy-2));color:#fff;padding:80px 0}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.stat{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:28px}
.stat__num{font-family:var(--head);font-weight:800;font-size:44px;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat__num span{font-size:20px;margin-left:2px}
.stat__label{margin-top:14px;color:rgba(255,255,255,.8);font-size:15px}
.stats__src{text-align:center;margin-top:26px;font-size:12.5px;color:rgba(255,255,255,.5)}

/* ===== HOW ===== */
.how{padding:88px 0;background:var(--bg)}
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin:48px 0 0;padding:0}
.step{position:relative;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px}
.step__n{width:42px;height:42px;border-radius:12px;background:var(--grad);color:#fff;font-family:var(--head);font-weight:700;font-size:19px;display:grid;place-items:center;margin-bottom:16px;box-shadow:0 8px 18px -8px rgba(59,130,246,.6)}
.step h3{font-size:19px;margin-bottom:8px}
.step p{font-size:14.5px;margin:0}

/* ===== PRODUCT ===== */
.product{padding:88px 0;background:var(--bg-soft)}
.product__grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:46px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.pcard__icon{width:54px;height:54px;border-radius:14px;background:var(--grad-soft);color:var(--blue);display:grid;place-items:center;margin-bottom:18px}
.pcard__icon svg{width:28px;height:28px}
.pcard h3{font-size:22px;margin-bottom:10px}
.pcard>p{font-size:15px;margin:0 0 18px}
.pcard__list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.pcard__list li{position:relative;padding-left:26px;font-size:14.5px;color:var(--ink);font-weight:500}
.pcard__list li::before{content:"";position:absolute;left:0;top:6px;width:16px;height:16px;border-radius:50%;background:var(--grad);
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/></svg>") center/12px no-repeat;
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/></svg>") center/12px no-repeat}

/* ===== TECH ===== */
.tech{padding:88px 0;background:var(--bg)}
.tech__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px}
.tcard{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .2s,border-color .2s}
.tcard:hover{transform:translateY(-4px);border-color:#cfe0f6}
.tcard__ic{width:48px;height:48px;border-radius:12px;background:#fff;border:1px solid var(--line);color:var(--blue);display:grid;place-items:center;margin-bottom:16px}
.tcard__ic svg{width:24px;height:24px}
.tcard h3{font-size:18px;margin-bottom:8px}
.tcard p{font-size:14.5px;margin:0}

/* ===== TEAM ===== */
.team{padding:88px 0;background:var(--bg-soft)}
.team__grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:46px}
.member{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 18px;text-align:center;box-shadow:var(--shadow-sm);transition:transform .2s}
.member:hover{transform:translateY(-4px)}
.avatar{width:78px;height:78px;border-radius:50%;margin:0 auto 16px;display:grid;place-items:center;color:#fff;font-family:var(--head);font-weight:700;font-size:26px;letter-spacing:.5px}
.av1{background:linear-gradient(135deg,#22b8e0,#3b82f6)}
.av2{background:linear-gradient(135deg,#ef5b6e,#f59e42)}
.av3{background:linear-gradient(135deg,#7c5cff,#c15bd6)}
.av4{background:linear-gradient(135deg,#22c1a6,#3bb273)}
.av5{background:linear-gradient(135deg,#5b6bff,#8a5bd6)}
.member h3{font-size:16.5px;margin-bottom:4px}
.member__role{font-family:var(--head);font-weight:600;font-size:13px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:10px}
.member p{font-size:13.5px;margin:0;color:var(--muted)}

/* ===== CTA ===== */
.cta{padding:20px 0 90px}
.cta__inner{background:linear-gradient(150deg,var(--navy),#14306b);border-radius:28px;padding:60px 40px;text-align:center;color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
.cta__inner::after{content:"";position:absolute;inset:auto -10% -60% auto;width:420px;height:420px;background:radial-gradient(closest-side,rgba(34,184,224,.35),transparent);pointer-events:none}
.cta h2{color:#fff;font-size:clamp(26px,3.4vw,36px)}
.cta p{max-width:40em;margin:14px auto 0;color:rgba(255,255,255,.8)}
.cta__actions{display:flex;gap:14px;justify-content:center;margin-top:28px;flex-wrap:wrap;position:relative}
.cta__mail{font-size:14px;margin-top:22px}
.cta__mail a{color:#7fd7f0;font-weight:600}

/* ===== FOOTER ===== */
.footer{background:var(--navy-2);color:rgba(255,255,255,.7);padding:52px 0 26px}
.footer__inner{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer__logo{height:30px;background:#fff;padding:6px 8px;border-radius:8px}
.footer__brand p{margin:12px 0 0;font-size:14px;max-width:24em}
.footer__links{display:flex;gap:22px;flex-wrap:wrap;align-items:center}
.footer__links a{font-size:14px;transition:color .2s}
.footer__links a:hover{color:#fff}
.footer__bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:20px;font-size:12.5px;color:rgba(255,255,255,.5)}

/* ===== reveal animation ===== */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.hero__scan{animation:none}}

/* ===== responsive ===== */
@media (max-width:960px){
  .stats,.tech__grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .team__grid{grid-template-columns:repeat(3,1fr)}
  .hero__inner{grid-template-columns:1fr;gap:36px}
  .hero__art{order:-1}
}
@media (max-width:720px){
  .nav__links,.nav__actions{display:none}
  .nav__links{position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:18px 24px;gap:16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
  .nav.open .nav__links,.nav.open .nav__actions{display:flex}
  .nav.open .nav__actions{position:absolute;top:calc(70px + 190px);left:0;right:0;background:#fff;flex-direction:column;padding:0 24px 20px}
  .nav__toggle{display:flex}
  .nav.open .nav__toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav.open .nav__toggle span:nth-child(2){opacity:0}
  .nav.open .nav__toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .stats,.tech__grid,.steps,.product__grid,.team__grid,.footer__inner,.footer__bottom{grid-template-columns:1fr}
  .team__grid{grid-template-columns:1fr 1fr}
  .chip--tl{left:6px}.chip--br{right:6px}
}
@media (max-width:460px){ .team__grid{grid-template-columns:1fr} }