/* ============================================================
   GoodCooling — Design System
   Palette: sea-night navy / ice-mist / cool white / warm sand
   Type: system grotesk display + mono "instrument readout"
   No external requests. DSGVO-safe. Mobile-first.
   ============================================================ */

:root{
  --navy-950:#070E1A;
  --navy-900:#0A1628;
  --navy-800:#0F2038;
  --navy-700:#16304F;
  --ice-300:#7FD4F5;
  --ice-400:#4FC3F7;
  --ice-glow:rgba(127,212,245,.18);
  --white:#F2F8FB;
  --slate:#8FA3B8;
  --sand:#E8CFA8;
  --heat:#E0764A;
  --ok:#5BD8A5;
  --radius:18px;
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,"SF Mono","Cascadia Mono","Segoe UI Mono",Menlo,Consolas,monospace;
  --maxw:1180px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
body{
  font-family:var(--font-sans);
  background:var(--navy-900);
  color:var(--white);
  font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ice-300);text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--ice-300);outline-offset:3px;border-radius:4px}

/* ---------- utility ---------- */
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:20px}
.mono{font-family:var(--font-mono);letter-spacing:.02em}
.eyebrow{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--ice-300);margin-bottom:14px;display:block;
}
.section{padding:88px 0}
@media(min-width:768px){.section{padding:120px 0}}
h1,h2,h3{line-height:1.12;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.7rem,4.5vw,2.6rem);margin-bottom:18px}
h3{font-size:1.15rem}
.sub{color:var(--slate);max-width:56ch}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- buttons (min 44px touch) ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 26px;border-radius:999px;
  font-weight:700;font-size:1rem;border:1px solid transparent;
  cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--ice-400);color:var(--navy-950);box-shadow:0 8px 30px var(--ice-glow)}
.btn-primary:hover{background:var(--ice-300)}
.btn-ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.25)}
.btn-ghost:hover{border-color:var(--ice-300);color:var(--ice-300)}
.btn-block{width:100%}

/* ---------- header ---------- */
.topbar{
  background:linear-gradient(90deg,var(--navy-800),var(--navy-700));
  font-size:.82rem;text-align:center;padding:9px 14px;color:var(--slate);
}
.topbar strong{color:var(--ok)}
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,22,40,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.12rem;color:var(--white)}
.logo .flake{width:34px;height:34px;border-radius:9px;background:var(--navy-700);display:grid;place-items:center;color:var(--ice-300)}
.logo b{color:var(--ice-300)}
.main-nav{display:none;gap:4px}
.main-nav a{
  color:var(--white);padding:12px 14px;border-radius:10px;font-size:.95rem;min-height:44px;
  display:inline-flex;align-items:center;
}
.main-nav a:hover{background:rgba(255,255,255,.06);color:var(--ice-300)}
.header-cta{display:none;gap:10px;align-items:center}
.cart-btn{position:relative;display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:12px;background:rgba(255,255,255,.06);border:none;color:var(--white);cursor:pointer;font-size:1.15rem}
.cart-count{
  position:absolute;top:2px;right:2px;background:var(--ice-400);color:var(--navy-950);
  font-size:.68rem;font-weight:800;min-width:19px;height:19px;border-radius:999px;
  display:grid;place-items:center;font-family:var(--font-mono)
}
.burger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:48px;height:48px;background:none;border:none;cursor:pointer;border-radius:12px}
.burger span{display:block;width:22px;height:2px;background:var(--white);margin-inline:auto;transition:transform .25s,opacity .25s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(min-width:900px){
  .main-nav{display:flex}
  .header-cta{display:flex}
  .burger{display:none}
}
.mobile-menu{
  display:none;flex-direction:column;padding:10px 20px 22px;gap:4px;
  border-top:1px solid rgba(255,255,255,.06);background:var(--navy-900);
}
.mobile-menu.open{display:flex}
.mobile-menu a{color:var(--white);padding:14px 10px;border-radius:10px;font-size:1.05rem;min-height:48px;display:flex;align-items:center}
.mobile-menu a:hover{background:rgba(255,255,255,.06)}
.lang-row{display:flex;flex-wrap:wrap;gap:8px;padding-top:14px}
.lang-row a{
  min-height:44px;min-width:44px;padding:8px 14px;border:1px solid rgba(255,255,255,.15);
  border-radius:999px;font-size:.9rem;display:inline-flex;align-items:center;gap:6px;color:var(--white)
}
.lang-row a[aria-current="true"]{background:var(--ice-400);color:var(--navy-950);border-color:var(--ice-400);font-weight:700}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 500px at 80% -10%,rgba(127,212,245,.12),transparent 60%),
    radial-gradient(700px 420px at -10% 110%,rgba(22,48,79,.8),transparent 60%),
    var(--navy-950);
  padding:76px 0 64px;
}
@media(min-width:900px){.hero{padding:120px 0 110px}}
.hero-grid{display:grid;gap:44px}
@media(min-width:900px){.hero-grid{grid-template-columns:1.15fr .85fr;align-items:center}}
.hero h1{font-size:clamp(2.3rem,7vw,4.2rem);margin:14px 0 20px}
.hero h1 .cold{color:var(--ice-300)}
.hero p.lead{font-size:1.1rem;color:var(--slate);max-width:48ch;margin-bottom:30px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:38px}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  border:1px solid rgba(127,212,245,.35);color:var(--ice-300);
  padding:8px 16px;border-radius:999px;background:rgba(127,212,245,.06)
}

/* signature: temperature readout */
.temp-readout{
  display:flex;align-items:baseline;gap:18px;flex-wrap:wrap;
  font-family:var(--font-mono);
}
.temp-readout .big{
  font-size:clamp(3rem,9vw,5rem);font-weight:700;
  background:linear-gradient(180deg,var(--heat) 0%,var(--sand) 18%,var(--ice-300) 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  transition:none;
}
.temp-readout .big.cooled{background:linear-gradient(180deg,var(--ice-300),var(--ice-400));-webkit-background-clip:text;background-clip:text}
.temp-readout .label{color:var(--slate);font-size:.8rem;letter-spacing:.18em;text-transform:uppercase}

.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:10px}
@media(min-width:640px){.stat-row{grid-template-columns:repeat(4,1fr)}}
.stat .n{font-family:var(--font-mono);font-size:1.7rem;font-weight:700;color:var(--white)}
.stat .l{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--slate)}

/* hero quick-view card */
.glass{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--radius);
  backdrop-filter:blur(12px);
}
.quickview{padding:26px}
.quickview h2{font-size:.78rem;font-family:var(--font-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--ice-300);margin-bottom:18px}
.qv-item{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 10px;border-radius:12px;min-height:56px;color:var(--white)
}
.qv-item:hover{background:rgba(255,255,255,.05)}
.qv-item + .qv-item{border-top:1px solid rgba(255,255,255,.06)}
.qv-name{font-weight:700}
.qv-range{font-family:var(--font-mono);font-size:.78rem;color:var(--slate)}
.qv-price{font-family:var(--font-mono);font-weight:700;color:var(--ice-300)}

/* ---------- trust bar ---------- */
.trustbar{border-block:1px solid rgba(255,255,255,.06);background:var(--navy-950)}
.trust-inner{display:flex;flex-wrap:wrap;gap:14px 34px;justify-content:center;padding:22px 0;color:var(--slate);font-size:.88rem}
.trust-inner span{display:inline-flex;align-items:center;gap:8px}
.trust-inner b{color:var(--white)}

/* ---------- before/after ---------- */
.split-demo{display:grid;gap:0;border-radius:var(--radius);overflow:hidden;grid-template-columns:1fr 1fr;min-height:230px}
.split-demo>div{padding:34px 22px;display:flex;flex-direction:column;justify-content:flex-end;gap:6px}
.side-hot{background:linear-gradient(160deg,#3A1F14,#6B3A22)}
.side-cool{background:linear-gradient(160deg,var(--navy-700),#0E3A52)}
.side-temp{font-family:var(--font-mono);font-size:clamp(1.8rem,5vw,2.8rem);font-weight:700}
.side-hot .side-temp{color:var(--sand)}
.side-cool .side-temp{color:var(--ice-300)}
.side-label{font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.65)}

/* ---------- products grid ---------- */
.prod-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:640px){.prod-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.prod-grid{grid-template-columns:repeat(4,1fr)}}
.prod-card{padding:26px 22px;display:flex;flex-direction:column;gap:14px;transition:transform .2s ease,border-color .2s ease}
.prod-card:hover{transform:translateY(-4px);border-color:rgba(127,212,245,.4)}
.prod-img{
  aspect-ratio:1/1.05;border-radius:12px;background:linear-gradient(180deg,var(--navy-800),var(--navy-950));
  display:grid;place-items:center;color:var(--slate);font-family:var(--font-mono);font-size:.75rem;
  overflow:hidden;padding:20px 16px 16px
}
.prod-card h3{font-size:1.2rem}
.prod-meta{font-family:var(--font-mono);font-size:.78rem;color:var(--slate)}
.prod-price{font-family:var(--font-mono);font-size:1.35rem;font-weight:700;color:var(--ice-300)}
.prod-vat{font-size:.72rem;color:var(--slate)}
.prod-card .btn{margin-top:auto}

/* ---------- tech ---------- */
.tech-grid{display:grid;gap:40px}
@media(min-width:900px){.tech-grid{grid-template-columns:1fr 1fr;align-items:center}}
.tech-steps{display:flex;flex-direction:column;gap:22px;margin-top:26px}
.tech-step{display:flex;gap:16px;align-items:flex-start}
.tech-step .dot{
  flex:none;width:38px;height:38px;border-radius:999px;border:1px solid rgba(127,212,245,.4);
  display:grid;place-items:center;font-family:var(--font-mono);color:var(--ice-300);font-size:.85rem
}
.tech-step p{color:var(--slate);font-size:.95rem}
.tech-visual{padding:34px;text-align:center}
.airflow{font-family:var(--font-mono);font-size:.85rem;color:var(--slate);display:flex;flex-direction:column;gap:16px;align-items:center}
.airflow .arrow{color:var(--ice-300);font-size:1.4rem}
.airflow .stage{padding:14px 22px;border-radius:12px;border:1px dashed rgba(255,255,255,.18);width:100%}
.airflow .stage.cold{border-color:rgba(127,212,245,.5);color:var(--ice-300)}

/* ---------- compare table ---------- */
.compare-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius)}
table.compare{width:100%;min-width:560px;border-collapse:collapse;background:rgba(255,255,255,.03)}
.compare th,.compare td{padding:16px 18px;text-align:left;border-bottom:1px solid rgba(255,255,255,.07);font-size:.92rem}
.compare thead th{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--slate)}
.compare td:first-child{color:var(--slate)}
.compare .col-gc{color:var(--ice-300);font-weight:700}
.compare .bad{color:var(--heat)}
.compare .ok{color:var(--ok)}

/* ---------- applications ---------- */
.apps-grid{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}
@media(min-width:900px){.apps-grid{grid-template-columns:repeat(5,1fr)}}
.app-tile{padding:26px 18px;text-align:center;display:flex;flex-direction:column;gap:8px;align-items:center;min-height:120px;justify-content:center}
.app-tile .ico{font-size:1.6rem}
.app-tile span{font-size:.9rem;font-weight:600}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:760px}
.faq-item{border-radius:14px;overflow:hidden}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:14px;
  background:none;border:none;color:var(--white);font:inherit;font-weight:700;
  padding:20px;min-height:56px;cursor:pointer;text-align:left;
}
.faq-q::after{content:"+";font-family:var(--font-mono);color:var(--ice-300);font-size:1.3rem;transition:transform .2s}
.faq-item[data-open="true"] .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--slate);padding:0 20px}
.faq-item[data-open="true"] .faq-a{max-height:400px;padding-bottom:20px}

/* ---------- blog teaser ---------- */
.blog-grid{display:grid;gap:20px}
@media(min-width:900px){.blog-grid{grid-template-columns:repeat(3,1fr)}}
.blog-card{padding:26px;display:flex;flex-direction:column;gap:10px;color:var(--white)}
.blog-card:hover{border-color:rgba(127,212,245,.4)}
.blog-card .tag{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ice-300)}
.blog-card p{color:var(--slate);font-size:.92rem}
.blog-card .more{margin-top:auto;font-weight:700;color:var(--ice-300);font-size:.9rem}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid rgba(255,255,255,.06);background:var(--navy-950);padding:56px 0 34px;margin-top:40px}
.foot-grid{display:grid;gap:34px}
@media(min-width:768px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot-col h4{font-size:.78rem;font-family:var(--font-mono);letter-spacing:.18em;text-transform:uppercase;color:var(--slate);margin-bottom:14px}
.foot-col a{display:flex;align-items:center;color:var(--white);padding:9px 0;font-size:.95rem;min-height:44px}
.foot-col a:hover{color:var(--ice-300)}
.foot-note{margin-top:38px;padding-top:22px;border-top:1px solid rgba(255,255,255,.06);color:var(--slate);font-size:.82rem;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between}

/* ---------- consent banner ---------- */
.consent{
  position:fixed;inset-inline:14px;bottom:14px;z-index:100;max-width:520px;margin-inline:auto;
  background:var(--navy-800);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);
  padding:22px;box-shadow:0 20px 60px rgba(0,0,0,.5);display:none;
}
.consent.show{display:block}
.consent h3{font-size:1rem;margin-bottom:8px}
.consent p{font-size:.85rem;color:var(--slate);margin-bottom:16px}
.consent-cats{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}
.consent-cats label{display:flex;align-items:center;gap:10px;font-size:.88rem;min-height:44px}
.consent-cats input{width:20px;height:20px;accent-color:var(--ice-400)}
.consent-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}

/* ---------- cart drawer / page ---------- */
.cart-list{display:flex;flex-direction:column;gap:14px}
.cart-row{display:grid;grid-template-columns:1fr auto;gap:12px;padding:18px;align-items:center}
.cart-row .nm{font-weight:700}
.cart-row .pr{font-family:var(--font-mono);color:var(--ice-300);font-weight:700}
.qty{display:inline-flex;align-items:center;gap:2px;border:1px solid rgba(255,255,255,.15);border-radius:999px;overflow:hidden}
.qty button{width:44px;height:44px;background:none;border:none;color:var(--white);font-size:1.1rem;cursor:pointer}
.qty button:hover{background:rgba(255,255,255,.08)}
.qty .q{min-width:34px;text-align:center;font-family:var(--font-mono)}
.rm{background:none;border:none;color:var(--slate);cursor:pointer;font-size:.8rem;min-height:44px;padding:0 8px}
.rm:hover{color:var(--heat)}
.cart-total{display:flex;justify-content:space-between;font-size:1.15rem;font-weight:800;padding:18px 4px}
.cart-total .mono{color:var(--ice-300)}
.legal-check{display:flex;gap:12px;align-items:flex-start;font-size:.88rem;color:var(--slate);padding:14px 4px}
.legal-check input{width:22px;height:22px;flex:none;margin-top:2px;accent-color:var(--ice-400)}
.empty-cart{text-align:center;color:var(--slate);padding:60px 0}

/* ---------- product detail ---------- */
.pd-grid{display:grid;gap:40px}
@media(min-width:900px){.pd-grid{grid-template-columns:1fr 1fr;align-items:start}}
.pd-gallery{aspect-ratio:1/1;border-radius:var(--radius);background:linear-gradient(180deg,var(--navy-800),var(--navy-950));display:grid;place-items:center;color:var(--slate);font-family:var(--font-mono)}
.pd-info h1{font-size:clamp(1.8rem,4vw,2.6rem);margin:8px 0 8px}
.pd-price{font-family:var(--font-mono);font-size:2rem;font-weight:800;color:var(--ice-300)}
.pd-vat{font-size:.8rem;color:var(--slate);margin-bottom:22px}
.pd-vat a{text-decoration:underline}
.spec-table{width:100%;border-collapse:collapse;margin:26px 0}
.spec-table td{padding:12px 4px;border-bottom:1px solid rgba(255,255,255,.07);font-size:.92rem}
.spec-table td:first-child{color:var(--slate)}
.spec-table td:last-child{font-family:var(--font-mono);text-align:right}
.sticky-buy{
  position:fixed;bottom:0;inset-inline:0;z-index:50;padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  background:rgba(10,22,40,.92);backdrop-filter:blur(12px);border-top:1px solid rgba(255,255,255,.08);
  display:flex;gap:12px;align-items:center;justify-content:space-between;
}
@media(min-width:900px){.sticky-buy{display:none}}
.sticky-buy .pr{font-family:var(--font-mono);font-weight:800;color:var(--ice-300)}

/* toast */
.toast{
  position:fixed;bottom:90px;inset-inline:14px;margin-inline:auto;max-width:340px;z-index:90;
  background:var(--navy-700);border:1px solid rgba(127,212,245,.35);color:var(--white);
  padding:14px 18px;border-radius:12px;text-align:center;font-size:.92rem;
  opacity:0;transform:translateY(10px);transition:opacity .25s,transform .25s;pointer-events:none;
}
.toast.show{opacity:1;transform:none}

/* product photos */
.prod-photo,.pd-photo{width:100%;height:100%;object-fit:contain;object-position:center bottom}
.prod-img.noimg::after{content:"Photo — run extract-images.py"}
.pd-gallery.noimg::after{content:"Photo — run extract-images.py"}