/* =========================================================================
   AKKUSZAKI — közös stíluslap (styles.css)
   Vizuális irány: "precíziós akku-klinika" — tiszta fehér alap, mély kék
   márkaszín, cellarács-motívum és töltésjelző-sáv mint visszatérő elem.
   Tipográfia: Space Grotesk (display) + IBM Plex Sans (törzsszöveg)
               + IBM Plex Mono (műszaki adatok: V, Ah, Ft)
   ========================================================================= */

:root{
  /* -- Szín -- */
  --white:   #FFFFFF;
  --paper:   #F3F8FD;   /* halványkék szekció-alap */
  --paper-2: #E9F1FB;
  --navy:    #0B2545;   /* elsődleges tinta / sötét felület */
  --navy-2:  #123363;
  --blue:    #1D63D1;   /* márkakék — CTA, linkek */
  --blue-2:  #164FA8;
  --cyan:    #2FB4E8;   /* elektromos akcentus */
  --line:    #D7E3F2;   /* hajszálvonalak, keretek */
  --line-2:  #C3D6EC;
  --ink-60:  rgba(11,37,69,.62);
  --ink-40:  rgba(11,37,69,.42);
  --ok:      #1E9E63;
  --warn:    #C7551B;

  --font-display: "Space Grotesk", "IBM Plex Sans", sans-serif;
  --font-body:    "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono:    "IBM Plex Mono", "JetBrains Mono", monospace;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow-soft: 0 1px 2px rgba(11,37,69,.06), 0 8px 24px -12px rgba(11,37,69,.18);
  --maxw: 1160px;
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top:90px; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; }
}

body{
  margin:0;
  background:var(--white);
  color:var(--navy);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:600; line-height:1.15; margin:0 0 .5em; letter-spacing:-.01em; }
p{ margin:0 0 1em; color:var(--ink-60); }
button{ font-family:inherit; }

:focus-visible{ outline:2.5px solid var(--cyan); outline-offset:2px; border-radius:4px; }

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.section{ padding:88px 0; }
.section--tight{ padding:56px 0; }
.section--paper{ background:var(--paper); }
.section--navy{ background:var(--navy); color:var(--white); }
.section--navy p{ color:rgba(255,255,255,.72); }

.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:12.5px; color:var(--blue);
  margin-bottom:14px;
}
.eyebrow::before{ content:""; width:16px; height:1px; background:var(--blue); }

.h-xl{ font-size:clamp(34px,4.6vw,54px); max-width:16ch; }
.h-lg{ font-size:clamp(28px,3.4vw,38px); max-width:18ch; }
.h-md{ font-size:22px; }
.lead{ font-size:18px; max-width:52ch; color:var(--ink-60); }

/* -------------------------- gombok -------------------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 24px; border-radius:var(--radius-sm);
  font-weight:600; font-size:15px; border:1.5px solid transparent;
  cursor:pointer; transition:background .15s ease, border-color .15s ease, color .15s ease, transform .1s ease;
  white-space:nowrap;
}
.btn:active{ transform:translateY(1px); }
.btn--primary{ background:var(--blue); color:var(--white); }
.btn--primary:hover{ background:var(--blue-2); }
.btn--ghost{ background:transparent; border-color:var(--line-2); color:var(--navy); }
.btn--ghost:hover{ border-color:var(--blue); color:var(--blue); }
.btn--on-navy{ background:var(--white); color:var(--navy); }
.btn--on-navy:hover{ background:var(--paper); }
.btn--lg{ padding:16px 28px; font-size:16px; }
.btn--sm{ padding:9px 16px; font-size:13.5px; }
.btn--wa{ background:#1E9E63; color:var(--white); }
.btn--wa:hover{ background:#188253; }

/* -------------------------- fejléc / nav -------------------------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.88); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{ display:flex; align-items:center; justify-content:space-between; height:76px; gap:24px; }
.brand{ display:flex; align-items:center; gap:11px; }
.brand .mark{ height:42px; width:auto; flex:none; object-fit:contain; }
.brand .wordmark{ display:flex; flex-direction:column; line-height:1.15; }
.brand .wordmark b{ font-family:var(--font-display); font-size:17.5px; letter-spacing:-.01em; }
.brand .wordmark span{ font-family:var(--font-mono); font-size:10.5px; color:var(--blue); letter-spacing:.02em; }

.nav-links{ display:flex; align-items:center; gap:30px; }
.nav-links a{ font-size:14.5px; font-weight:500; color:var(--ink-60); padding:6px 0; border-bottom:2px solid transparent; }
.nav-links a:hover, .nav-links a.active{ color:var(--navy); border-color:var(--blue); }

.nav-cta{ display:flex; align-items:center; gap:10px; }
.nav-phone{ display:flex; align-items:center; gap:7px; font-family:var(--font-mono); font-size:14px; color:var(--navy); }
.nav-phone svg{ width:16px; height:16px; color:var(--blue); }

.burger{ display:none; width:40px; height:40px; border:1.5px solid var(--line-2); border-radius:var(--radius-sm); background:var(--white); align-items:center; justify-content:center; }
.burger span, .burger::before, .burger::after{ content:""; display:block; width:18px; height:1.6px; background:var(--navy); position:relative; transition:transform .2s ease, opacity .2s ease; }
.burger::before{ position:absolute; transform:translateY(-6px); }
.burger::after{ position:absolute; transform:translateY(6px); }
.burger.open span{ opacity:0; }
.burger.open::before{ transform:rotate(45deg); }
.burger.open::after{ transform:rotate(-45deg); }

.mobile-panel{ display:none; border-top:1px solid var(--line); background:var(--white); }
.mobile-panel.open{ display:block; }
.mobile-panel ul{ padding:14px 24px 22px; display:flex; flex-direction:column; gap:2px; }
.mobile-panel a{ display:block; padding:12px 0; font-size:16px; border-bottom:1px solid var(--line); }
.mobile-panel .nav-cta{ padding:16px 24px 22px; }

@media (max-width:900px){
  .nav-links, .nav-cta .nav-phone{ display:none; }
  .burger{ display:flex; }
}

/* -------------------------- cellarács háttér -------------------------- */
.cell-grid{
  position:absolute; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 78%);
  mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 78%);
  opacity:.7;
}

/* -------------------------- hero -------------------------- */
.hero{ position:relative; overflow:hidden; padding:76px 0 64px; }
.hero-grid{ position:relative; z-index:1; display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
.hero-cta{ display:flex; gap:12px; margin:28px 0 34px; flex-wrap:wrap; }

.trust-strip{ display:flex; gap:28px; flex-wrap:wrap; padding-top:22px; border-top:1px solid var(--line); }
.trust-strip .item{ display:flex; flex-direction:column; gap:2px; }
.trust-strip .item b{ font-family:var(--font-mono); font-size:19px; color:var(--navy); }
.trust-strip .item span{ font-size:12.5px; color:var(--ink-40); }

.hero-panel{
  position:relative; background:var(--white); border:1px solid var(--line);
  border-radius:14px; padding:26px; box-shadow:var(--shadow-soft);
}
.hero-panel .panel-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:18px; }
.hero-panel .panel-head span{ font-family:var(--font-mono); font-size:11.5px; color:var(--ink-40); }
.hero-panel .dot{ width:7px; height:7px; border-radius:50%; background:var(--ok); display:inline-block; margin-right:6px; }

.charge-row{ display:flex; align-items:center; gap:12px; margin-bottom:14px; }
.charge-row .lbl{ width:96px; flex:none; font-family:var(--font-mono); font-size:12.5px; color:var(--ink-60); }
.charge-track{ flex:1; height:9px; border-radius:5px; background:var(--paper-2); overflow:hidden; }
.charge-fill{ height:100%; border-radius:5px; background:linear-gradient(90deg, var(--cyan), var(--blue)); }
.charge-row .val{ width:44px; flex:none; text-align:right; font-family:var(--font-mono); font-size:12.5px; color:var(--navy); }

/* -------------------------- szolgáltatás kártyák -------------------------- */
.service-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:14px; overflow:hidden; margin-top:44px; }
.service-card{ background:var(--white); padding:30px 28px; border-left:3px solid transparent; transition:border-color .15s ease, background .15s ease; }
.service-card:hover{ border-left-color:var(--blue); background:var(--paper); }
.service-card .icon{ width:40px; height:40px; color:var(--blue); margin-bottom:16px; }
.service-card h3{ font-size:18px; margin-bottom:8px; }
.service-card p{ font-size:14.5px; margin-bottom:0; }
.service-card .tag{ display:inline-block; margin-top:14px; font-family:var(--font-mono); font-size:11.5px; color:var(--blue); }

@media (max-width:760px){ .service-grid{ grid-template-columns:1fr; } }

/* -------------------------- folyamat lépések -------------------------- */
.process{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; margin-top:44px; position:relative; }
.process::before{ content:""; position:absolute; top:19px; left:0; right:0; height:1px; background:var(--line); }
.process .step{ position:relative; padding-right:20px; }
.process .num{
  width:38px; height:38px; border-radius:50%; background:var(--navy); color:var(--white);
  display:flex; align-items:center; justify-content:center; font-family:var(--font-mono); font-size:14px;
  position:relative; z-index:1; margin-bottom:16px;
}
.process h4{ font-size:15.5px; margin-bottom:6px; }
.process p{ font-size:13.5px; }
@media (max-width:840px){ .process{ grid-template-columns:1fr 1fr; row-gap:32px; } .process::before{ display:none; } }
@media (max-width:520px){ .process{ grid-template-columns:1fr; } }

/* -------------------------- statisztika sáv -------------------------- */
.stat-strip{ display:grid; grid-template-columns:repeat(3,1fr); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.stat-strip .stat{ padding:30px 28px; border-left:1px solid var(--line); }
.stat-strip .stat:first-child{ border-left:none; }
.stat-strip b{ display:block; font-family:var(--font-display); font-size:30px; }
.stat-strip span{ font-size:13.5px; color:var(--ink-40); }
@media (max-width:700px){ .stat-strip{ grid-template-columns:1fr; } .stat-strip .stat{ border-left:none; border-top:1px solid var(--line); } .stat-strip .stat:first-child{ border-top:none; } }

/* -------------------------- kártya / eszközkártya -------------------------- */
.device-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-top:36px; }
.device-card{ border:1.5px solid var(--line); border-radius:12px; padding:22px 18px; text-align:left; background:var(--white); cursor:pointer; transition:border-color .15s ease, box-shadow .15s ease; }
.device-card svg{ width:28px; height:28px; color:var(--blue); margin-bottom:12px; }
.device-card b{ display:block; font-size:14.5px; margin-bottom:2px; }
.device-card span{ font-size:12px; color:var(--ink-40); }
.device-card.active{ border-color:var(--blue); box-shadow:0 0 0 3px rgba(29,99,209,.12); }
@media (max-width:700px){ .device-grid{ grid-template-columns:repeat(2,1fr); } }

/* -------------------------- kalkulátor -------------------------- */
.calc-shell{ display:grid; grid-template-columns:1fr .82fr; gap:0; border:1px solid var(--line); border-radius:16px; overflow:hidden; margin-top:36px; background:var(--white); }
.calc-form{ padding:38px; }
.calc-result{ padding:38px; background:var(--navy); color:var(--white); display:flex; flex-direction:column; }
.field{ margin-bottom:24px; }
.field label{ display:block; font-family:var(--font-mono); font-size:12px; color:var(--ink-40); margin-bottom:10px; }
.pill-row{ display:flex; flex-wrap:wrap; gap:8px; }
.pill{ padding:9px 16px; border-radius:100px; border:1.5px solid var(--line-2); font-size:13.5px; background:var(--white); cursor:pointer; color:var(--navy); }
.pill:hover{ border-color:var(--blue); }
.pill.active{ background:var(--navy); border-color:var(--navy); color:var(--white); }
.slider-row{ display:flex; align-items:center; gap:14px; }
input[type=range]{ flex:1; accent-color:var(--blue); }
.slider-val{ font-family:var(--font-mono); font-size:14px; width:64px; text-align:right; }

.result-top{ flex:1; }
.result-top .lbl{ font-family:var(--font-mono); font-size:12px; color:rgba(255,255,255,.5); margin-bottom:8px; }
.result-price{ font-family:var(--font-display); font-size:44px; margin-bottom:4px; }
.result-note{ font-size:13px; color:rgba(255,255,255,.55); margin-bottom:26px; }
.result-breakdown{ display:flex; flex-direction:column; gap:10px; padding-top:20px; border-top:1px solid rgba(255,255,255,.14); }
.result-breakdown .row{ display:flex; justify-content:space-between; font-size:13.5px; color:rgba(255,255,255,.75); }
.result-breakdown .row b{ color:var(--white); font-family:var(--font-mono); font-weight:500; }
.calc-disclaimer{ font-size:12px; color:rgba(255,255,255,.45); margin-top:22px; }

@media (max-width:820px){ .calc-shell{ grid-template-columns:1fr; } }

/* -------------------------- rólunk / listák -------------------------- */
.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:start; }
@media (max-width:820px){ .two-col{ grid-template-columns:1fr; gap:36px; } }

.check-list{ display:flex; flex-direction:column; gap:14px; margin-top:18px; }
.check-list li{ display:flex; gap:12px; align-items:flex-start; font-size:15px; color:var(--navy); }
.check-list svg{ width:18px; height:18px; color:var(--ok); flex:none; margin-top:2px; }

.value-card{ border:1px solid var(--line); border-radius:12px; padding:24px; background:var(--paper); }
.value-card h4{ font-size:16px; margin-bottom:8px; }
.value-card p{ font-size:14px; margin-bottom:0; }

/* -------------------------- CTA sáv -------------------------- */
.cta-band{ display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap; padding:44px 0; }
.cta-band h3{ font-size:24px; margin-bottom:6px; }
.cta-band p{ margin-bottom:0; }
.cta-band .actions{ display:flex; gap:12px; flex-wrap:wrap; }

/* -------------------------- lábléc -------------------------- */
.site-footer{ background:var(--navy); color:rgba(255,255,255,.7); padding:64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr 1fr; gap:40px; padding-bottom:44px; border-bottom:1px solid rgba(255,255,255,.12); }
.footer-brand .brand .wordmark b{ color:var(--white); }
.footer-brand p{ font-size:14px; color:rgba(255,255,255,.55); max-width:32ch; margin-top:14px; }
.footer-col h5{ font-family:var(--font-mono); font-size:12px; color:rgba(255,255,255,.42); margin-bottom:16px; letter-spacing:.02em; }
.footer-col ul{ display:flex; flex-direction:column; gap:11px; }
.footer-col a{ font-size:14px; color:rgba(255,255,255,.75); }
.footer-col a:hover{ color:var(--white); }

.social-row{ display:flex; gap:10px; margin-top:18px; }
.social-row a{ width:38px; height:38px; border-radius:9px; border:1px solid rgba(255,255,255,.18); display:flex; align-items:center; justify-content:center; transition:background .15s ease, border-color .15s ease; }
.social-row a:hover{ background:rgba(255,255,255,.08); border-color:rgba(255,255,255,.4); }
.social-row svg{ width:17px; height:17px; }

.footer-bottom{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; padding-top:24px; font-size:13px; color:rgba(255,255,255,.42); }

@media (max-width:820px){ .footer-grid{ grid-template-columns:1fr 1fr; row-gap:32px; } }
@media (max-width:520px){ .footer-grid{ grid-template-columns:1fr; } }

/* -------------------------- WhatsApp lebegő gomb -------------------------- */
.wa-float{
  position:fixed; right:20px; bottom:20px; z-index:60;
  width:56px; height:56px; border-radius:50%; background:#1E9E63; color:#fff;
  display:flex; align-items:center; justify-content:center; box-shadow:0 10px 24px -6px rgba(11,37,69,.4);
  transition:transform .15s ease;
}
.wa-float:hover{ transform:translateY(-2px) scale(1.04); }
.wa-float svg{ width:27px; height:27px; }

/* -------------------------- reveal animáció -------------------------- */
.reveal{ opacity:0; transform:translateY(14px); transition:opacity .55s ease, transform .55s ease; }
.reveal.in{ opacity:1; transform:none; }

/* -------------------------- belső oldal fejléc -------------------------- */
.page-hero{ padding:56px 0 44px; border-bottom:1px solid var(--line); }
.page-hero .eyebrow{ margin-bottom:12px; }
.breadcrumb{ font-family:var(--font-mono); font-size:12px; color:var(--ink-40); margin-bottom:18px; }
.breadcrumb a:hover{ color:var(--blue); }

.kw-strip{ display:flex; flex-wrap:wrap; gap:8px; margin-top:20px; }
.kw-strip span{ font-family:var(--font-mono); font-size:11.5px; color:var(--ink-40); border:1px solid var(--line); border-radius:100px; padding:5px 12px; }