/* ===== CLOSSERS — light premium, Apple-inspired ===== */
:root{
  --bg:#fbfbfd;
  --bg-soft:#f3f5f9;
  --ink:#0d1424;
  --ink-soft:#5b6678;
  --teal:#009198;
  --teal-deep:#007177;
  --light:#cfd9e8;
  --line:rgba(13,20,36,.08);
  --radius:22px;
  --maxw:1160px;
  --ease:cubic-bezier(.22,1,.36,1);
  font-family:-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Roboto,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

/* ---------- NAV ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .4s var(--ease),box-shadow .4s var(--ease),backdrop-filter .4s var(--ease);
}
.nav__inner{
  max-width:var(--maxw);margin:0 auto;padding:20px 28px;
  display:flex;align-items:center;gap:32px;
}
.nav__logo img{height:19px;width:auto;display:block}
.nav__links{margin-left:auto;display:flex;gap:34px}
.nav__links a{
  font-size:15px;font-weight:500;color:var(--ink-soft);
  transition:color .25s var(--ease);position:relative;
}
.nav__links a:hover{color:var(--ink)}
.nav.scrolled{
  background:rgba(251,251,253,.72);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  box-shadow:0 1px 0 var(--line);
}

/* ---------- BUTTONS (compact, refined) ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--teal);color:#fff;font-weight:500;font-size:13px;letter-spacing:-.01em;
  padding:8px 16px;border-radius:8px;
  transition:transform .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
  white-space:nowrap;
}
.btn:hover{background:var(--teal-deep);transform:translateY(-1px)}
.btn--sm{padding:6px 13px;font-size:12.5px}
.btn--lg{padding:10px 22px;font-size:14px;border-radius:9px}
.btn--ghost{
  background:transparent;color:var(--ink);
  border:1px solid var(--line);font-weight:500;
}
.btn--ghost:hover{background:transparent;color:var(--teal-deep);border-color:var(--teal)}

/* ---------- HERO ---------- */
.hero{
  position:relative;min-height:100vh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:120px 28px 80px;overflow:hidden;
}
.hero__bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.32;will-change:transform}
.orb--1{
  width:560px;height:560px;top:-180px;left:50%;transform:translateX(-60%);
  background:radial-gradient(circle at 30% 30%,rgba(0,145,152,.4),rgba(0,145,152,0) 70%);
  animation:float1 16s var(--ease) infinite alternate;
}
.orb--2{
  width:460px;height:460px;bottom:-160px;right:8%;
  background:radial-gradient(circle at 60% 40%,rgba(207,217,232,.6),rgba(207,217,232,0) 70%);
  animation:float2 20s var(--ease) infinite alternate;
}
@keyframes float1{to{transform:translate(-40%,40px) scale(1.1)}}
@keyframes float2{to{transform:translate(-30px,-30px) scale(1.08)}}
.grid-fade{
  position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 60% 50% at 50% 40%,#000 20%,transparent 70%);
          mask-image:radial-gradient(ellipse 60% 50% at 50% 40%,#000 20%,transparent 70%);
  opacity:.35;
}
.hero__content{position:relative;z-index:2;max-width:900px}
.eyebrow{
  font-size:13px;font-weight:700;letter-spacing:.22em;color:var(--teal);
  margin-bottom:26px;
}
.hero__title{
  font-size:clamp(44px,8vw,96px);
  font-weight:700;line-height:1;letter-spacing:-.035em;
  margin-bottom:30px;
}
.hero__title span{display:block}
.grad{
  background:linear-gradient(100deg,var(--teal) 0%,#1fb6bd 50%,var(--light) 120%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__sub{
  font-size:clamp(17px,2.2vw,22px);line-height:1.55;color:var(--ink-soft);
  max-width:600px;margin:0 auto 40px;font-weight:400;
}
.hero__cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

.scroll-hint{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:2}
.scroll-hint span{
  display:block;width:24px;height:38px;border:2px solid var(--ink-soft);border-radius:14px;position:relative;opacity:.5;
}
.scroll-hint span::after{
  content:"";position:absolute;top:7px;left:50%;width:3px;height:7px;border-radius:2px;
  background:var(--ink-soft);transform:translateX(-50%);animation:scroll 1.8s infinite;
}
@keyframes scroll{0%{opacity:1;top:7px}60%{opacity:0;top:18px}100%{opacity:0}}

/* ---------- SERVICES ---------- */
.services{max-width:var(--maxw);margin:0 auto;padding:120px 28px}
.section-head{text-align:center;margin-bottom:64px}
.section-head .eyebrow{color:var(--teal);margin-bottom:18px}
.section-head h2{
  font-size:clamp(30px,4.5vw,52px);font-weight:700;letter-spacing:-.03em;line-height:1.05;
}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:40px 34px;transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease);
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--teal),var(--light));
  transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease);
}
.card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(13,20,36,.06);border-color:var(--line)}
.card:hover::before{transform:scaleX(1)}
.card__num{
  font-size:14px;font-weight:700;color:var(--teal);letter-spacing:.1em;margin-bottom:22px;
}
.card h3{font-size:24px;font-weight:700;letter-spacing:-.02em;margin-bottom:14px}
.card p{font-size:16px;line-height:1.6;color:var(--ink-soft)}

/* ---------- FOOTER ---------- */
.footer{background:var(--ink);color:#fff;margin-top:60px}
.footer__cta{
  max-width:var(--maxw);margin:0 auto;padding:120px 28px 90px;text-align:center;
}
.footer__cta .eyebrow{color:var(--teal);margin-bottom:18px}
.footer__cta h2{
  font-size:clamp(30px,5vw,58px);font-weight:700;letter-spacing:-.03em;margin-bottom:38px;line-height:1.05;
}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);
  max-width:var(--maxw);margin:0 auto;padding:34px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer{padding-top:0}
.footer__logo{height:22px;opacity:.9}
.footer__bottom{border-top:none}
.footer__bottom p{font-size:14px;color:rgba(255,255,255,.5)}

/* ---------- MOBILE BURGER ---------- */
.nav__burger{
  display:none;margin-left:14px;width:34px;height:34px;border:none;background:none;cursor:pointer;
  flex-direction:column;justify-content:center;gap:5px;padding:0;
}
.nav__burger span{display:block;height:2px;width:22px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease),opacity .25s var(--ease)}
.nav.open .nav__burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav.open .nav__burger span:nth-child(2){opacity:0}
.nav.open .nav__burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- ABOUT ---------- */
.about{max-width:var(--maxw);margin:0 auto;padding:120px 28px}
.about__inner{display:grid;grid-template-columns:1.3fr 1fr;gap:70px;align-items:center}
.about__text .eyebrow{color:var(--teal);margin-bottom:18px}
.about__text h2{font-size:clamp(28px,4vw,46px);font-weight:700;letter-spacing:-.03em;line-height:1.08;margin-bottom:24px}
.about__lead{font-size:clamp(17px,2vw,20px);line-height:1.55;color:var(--ink);margin-bottom:18px;font-weight:500}
.about__body{font-size:16px;line-height:1.7;color:var(--ink-soft)}
.about__points{display:flex;flex-direction:column;gap:18px}
.point{padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:16px}
.point__k{display:block;font-size:16px;font-weight:700;color:var(--teal);margin-bottom:5px;letter-spacing:-.01em}
.point__v{display:block;font-size:15px;color:var(--ink-soft);line-height:1.5}

/* ---------- CARD ICON + LIST ---------- */
.card__icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(0,145,152,.09);color:var(--teal);margin-bottom:22px;
}
.card__icon svg{width:24px;height:24px}
.card__list{list-style:none;margin-top:20px;border-top:1px solid var(--line);padding-top:18px}
.card__list li{font-size:14.5px;color:var(--ink-soft);padding:6px 0 6px 22px;position:relative}
.card__list li::before{
  content:"";position:absolute;left:0;top:13px;width:7px;height:7px;border-radius:50%;
  background:var(--teal);opacity:.5;
}

/* ---------- CONTACT ---------- */
.contact{max-width:980px;margin:0 auto;padding:120px 28px 40px}
.contact__head{text-align:center;margin-bottom:48px}
.contact__head .eyebrow{color:var(--teal);margin-bottom:18px}
.contact__head h2{font-size:clamp(30px,4.5vw,52px);font-weight:700;letter-spacing:-.03em;line-height:1.05;margin-bottom:18px}
.contact__sub{font-size:17px;color:var(--ink-soft);line-height:1.6;max-width:540px;margin:0 auto}
.contact__sub a{color:var(--teal);font-weight:500}
.contact__form{max-width:560px;margin:0 auto;display:flex;flex-direction:column;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field input,.field textarea{
  font:inherit;font-size:15px;color:var(--ink);background:#fff;
  border:1px solid var(--line);border-radius:10px;padding:12px 14px;width:100%;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);resize:vertical;
}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(0,145,152,.12);
}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.contact__form .btn{align-self:flex-start;margin-top:4px;border:none;cursor:pointer}
.form-status{font-size:14px;min-height:20px}
.form-status.ok{color:var(--teal);font-weight:600}
.form-status.err{color:#c0392b;font-weight:600}

/* ---------- REVEAL ANIMATIONS ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal-up{opacity:0;transform:translateY(38px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal-up.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  .reveal,.reveal-up{opacity:1;transform:none;transition:none}
  .orb,.scroll-hint span::after{animation:none}
}

/* ---------- RESPONSIVE ---------- */
@media(max-width:900px){
  .about__inner{grid-template-columns:1fr;gap:40px}
}
@media(max-width:820px){
  .cards{grid-template-columns:1fr;gap:18px}
  .hero{padding-top:140px}
  .nav__cta{display:none}
  .nav__burger{display:flex}
  /* mobile slide-down menu */
  .nav__links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;gap:0;
    background:rgba(251,251,253,.96);
    backdrop-filter:saturate(180%) blur(20px);
    -webkit-backdrop-filter:saturate(180%) blur(20px);
    box-shadow:0 12px 30px rgba(13,20,36,.08);border-top:1px solid var(--line);
    padding:8px 0;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
  }
  .nav.open .nav__links{opacity:1;visibility:visible;transform:none}
  .nav__links a{padding:14px 28px;font-size:16px;color:var(--ink);width:100%}
  .nav__links a:active{background:rgba(0,145,152,.06)}
  .services,.about,.contact{padding-top:80px;padding-bottom:80px}
}