:root{
  --bg:#f8fafc;--paper:#ffffff;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;
  --green:#00c897;--blue:#1597ff;--violet:#7c5cff;--orange:#f97316;
  --dark:#08111f;--radius:28px;--shadow:0 24px 70px rgba(15,23,42,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
.container{width:min(1180px,calc(100% - 40px));margin-inline:auto}
.badge{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.14);color:#fff;border-radius:999px;backdrop-filter:blur(16px);font-weight:750;font-size:13px}
.nav{position:sticky;top:0;z-index:50;background:rgba(248,250,252,.84);backdrop-filter:blur(18px);border-bottom:1px solid rgba(226,232,240,.75)}
.nav-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.logo{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:-.03em}
.logo img{width:190px;max-width:44vw}
.nav-links{display:flex;gap:22px;align-items:center;color:#334155;font-weight:750;font-size:14px}
.nav-links a:hover{color:#0f172a}
.mobile-menu{display:none;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px 12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:0;border-radius:999px;padding:13px 20px;font-weight:850;cursor:pointer;transition:.2s transform,.2s box-shadow,.2s background}
.btn:hover{transform:translateY(-2px)}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--green),var(--blue),var(--violet));box-shadow:0 18px 35px rgba(21,151,255,.25)}
.btn-soft{color:#0f172a;background:#fff;border:1px solid var(--line);box-shadow:0 12px 30px rgba(15,23,42,.08)}
.btn-dark{color:#fff;background:#0f172a}
.hero{position:relative;overflow:hidden;background:
 radial-gradient(circle at 20% 20%, rgba(0,200,151,.24), transparent 36%),
 radial-gradient(circle at 80% 8%, rgba(124,92,255,.20), transparent 32%),
 linear-gradient(135deg,#06111f 0%,#0f2443 45%,#073327 100%);color:#fff;padding:72px 0 42px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:36px;align-items:center}
.hero h1{font-size:clamp(42px,6vw,76px);line-height:.98;letter-spacing:-.075em;margin:22px 0 18px}
.hero p.lead{font-size:clamp(18px,2vw,23px);color:#dbeafe;max-width:680px;margin:0 0 28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{position:relative;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);border-radius:34px;padding:16px;box-shadow:var(--shadow);backdrop-filter:blur(20px)}
.hero-card img{width:100%;display:block;border-radius:26px;background:#fff}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:32px}
.stat{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);border-radius:22px;padding:18px}
.stat strong{display:block;font-size:25px;letter-spacing:-.04em}
.stat span{color:#cbd5e1;font-weight:650;font-size:13px}
.section{padding:82px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
.kicker{display:inline-flex;color:#0369a1;background:#e0f2fe;border:1px solid #bae6fd;padding:7px 12px;border-radius:999px;font-weight:850;font-size:13px}
h2{font-size:clamp(32px,4.5vw,54px);line-height:1.02;letter-spacing:-.06em;margin:14px 0 10px}
.section-head p{max-width:590px;color:var(--muted);font-size:18px;margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 16px 44px rgba(15,23,42,.06)}
.card h3{font-size:22px;margin:0 0 8px;letter-spacing:-.035em}
.card p{color:var(--muted);margin:0 0 14px}
.icon{width:46px;height:46px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,#dcfce7,#dbeafe);font-size:24px;margin-bottom:15px}
.feature-list{padding:0;margin:16px 0 0;list-style:none;display:grid;gap:10px}
.feature-list li{display:flex;gap:10px;align-items:flex-start;color:#334155}
.feature-list li:before{content:"✓";display:grid;place-items:center;width:20px;height:20px;flex:0 0 20px;border-radius:50%;background:#dcfce7;color:#16a34a;font-weight:900;font-size:13px;margin-top:2px}
.pricing-table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:26px;overflow:hidden;box-shadow:0 16px 44px rgba(15,23,42,.06)}
.pricing-table th,.pricing-table td{padding:16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.pricing-table th{background:#f1f5f9;font-size:13px;color:#334155;text-transform:uppercase;letter-spacing:.06em}
.pricing-table tr:last-child td{border-bottom:0}
.price{font-weight:900;color:#047857}
.old{color:#64748b}
.app-shell{background:#08111f;color:#e2e8f0;border-radius:38px;padding:18px;box-shadow:0 30px 90px rgba(15,23,42,.22)}
.app-top{display:flex;align-items:center;justify-content:space-between;padding:12px 14px 22px}
.app-top strong{color:#fff}
.tabs{display:flex;gap:8px;flex-wrap:wrap}
.tab-btn{background:rgba(255,255,255,.08);color:#cbd5e1;border:1px solid rgba(255,255,255,.10);border-radius:999px;padding:10px 13px;cursor:pointer;font-weight:800;font-size:13px}
.tab-btn.active{background:#fff;color:#0f172a}
.app-view{display:none;background:#f8fafc;color:#0f172a;border-radius:28px;padding:24px;min-height:520px}
.app-view.active{display:block}
.dashboard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.metric{background:#fff;border:1px solid #e2e8f0;border-radius:22px;padding:18px}
.metric span{color:#64748b;font-weight:750;font-size:13px}
.metric strong{display:block;font-size:28px;letter-spacing:-.05em;margin-top:4px}
.chart{height:240px;background:linear-gradient(180deg,#fff,#f1f5f9);border:1px solid #e2e8f0;border-radius:24px;padding:16px;position:relative;overflow:hidden}
.chart svg{width:100%;height:100%}
.ai-panel{display:grid;grid-template-columns:.95fr 1.05fr;gap:18px;align-items:stretch}
.slider-row{display:grid;gap:8px;margin:14px 0}
.slider-row label{font-weight:800;color:#334155;font-size:14px}
input[type=range]{width:100%;accent-color:#0ea5e9}
.result{background:#0f172a;color:#fff;border-radius:24px;padding:20px}
.result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.result-tile{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:14px}
.result-tile span{display:block;color:#cbd5e1;font-size:13px;font-weight:750}
.result-tile strong{font-size:24px;letter-spacing:-.04em}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.field{display:grid;gap:7px}
.field label{font-weight:800;color:#334155;font-size:13px}
.field input,.field select,.field textarea{border:1px solid #cbd5e1;border-radius:16px;padding:13px;background:#fff;color:#0f172a}
.role-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:14px 0}
.role-card{border:2px solid #e2e8f0;border-radius:22px;padding:18px;cursor:pointer;background:#fff}
.role-card.active{border-color:#0ea5e9;background:#eff6ff}
.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.timeline{position:relative;display:grid;gap:18px}
.step{display:grid;grid-template-columns:48px 1fr;gap:14px;align-items:start}
.step-number{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:#0f172a;color:#fff;font-weight:900}
.step .card{padding:18px}
.cta{background:linear-gradient(135deg,#0f172a,#123a5c 48%,#064e3b);color:#fff;border-radius:42px;padding:54px;display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;overflow:hidden;position:relative}
.cta h2{color:#fff;margin-top:0}
.cta p{color:#cbd5e1;font-size:18px}
.footer{background:#08111f;color:#cbd5e1;padding:42px 0}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:22px}
.footer h4{color:#fff;margin:0 0 10px}
.footer a,.footer span{display:block;color:#94a3b8;margin:8px 0}
.toast{position:fixed;right:22px;bottom:22px;background:#0f172a;color:#fff;border-radius:18px;padding:14px 16px;box-shadow:var(--shadow);transform:translateY(110px);opacity:0;transition:.25s;z-index:200}
.toast.show{transform:translateY(0);opacity:1}
@media(max-width:980px){
  .hero-grid,.grid-2,.ai-panel,.cta,.footer-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}.stats,.dashboard-grid{grid-template-columns:repeat(2,1fr)}
  .nav-links{display:none}.mobile-menu{display:inline-flex}.nav.open .nav-links{display:flex;position:absolute;left:20px;right:20px;top:78px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:18px;flex-direction:column;align-items:flex-start}
}
@media(max-width:640px){
  .container{width:min(100% - 24px,1180px)}
  .hero{padding-top:44px}.hero h1{font-size:42px}
  .grid-3,.stats,.dashboard-grid,.form-grid,.role-cards,.admin-grid,.result-grid{grid-template-columns:1fr}
  .section{padding:56px 0}.section-head{display:block}
  .pricing-table{font-size:13px}.pricing-table th,.pricing-table td{padding:11px}
  .cta{padding:34px 24px}
}


/* =========================
   ArchEnerg belső alkalmazás
   ========================= */
.app-body{background:#eef3f8;min-height:100vh}
.login-page{min-height:100vh;display:grid;place-items:center;padding:28px;background:
 radial-gradient(circle at 15% 18%,rgba(0,200,151,.20),transparent 32%),
 radial-gradient(circle at 85% 10%,rgba(124,92,255,.18),transparent 30%),
 linear-gradient(135deg,#06111f 0%,#102a4a 52%,#073327 100%)}
.login-card{width:min(980px,100%);display:grid;grid-template-columns:1.04fr .96fr;gap:0;background:#fff;border-radius:38px;overflow:hidden;box-shadow:0 40px 120px rgba(0,0,0,.34)}
.login-brand{padding:46px;color:#fff;background:
 linear-gradient(135deg,rgba(0,200,151,.92),rgba(21,151,255,.90),rgba(124,92,255,.86)),
 url('../assets/hero-system.svg');background-size:cover;background-position:center}
.login-brand img{width:230px;filter:brightness(0) invert(1);margin-bottom:40px}
.login-brand h1{font-size:44px;line-height:1;letter-spacing:-.06em;margin:0 0 18px}
.login-brand p{font-size:18px;color:rgba(255,255,255,.90)}
.login-panel{padding:46px}
.login-panel h2{font-size:38px;margin-top:0}
.login-hint{background:#f1f5f9;border:1px solid #e2e8f0;border-radius:18px;padding:14px;color:#334155;margin-bottom:18px}
.login-error{display:none;background:#fef2f2;color:#991b1b;border:1px solid #fecaca;border-radius:16px;padding:12px;margin-bottom:14px;font-weight:800}
.login-error.show{display:block}
.app-layout{display:grid;grid-template-columns:292px 1fr;min-height:100vh}
.sidebar{background:#08111f;color:#cbd5e1;padding:22px;position:sticky;top:0;height:100vh;overflow:auto}
.sidebar-logo{display:flex;align-items:center;gap:12px;margin-bottom:24px}
.sidebar-logo img{width:210px;filter:brightness(0) invert(1)}
.user-mini{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.10);border-radius:22px;padding:16px;margin:16px 0 22px}
.user-mini strong{display:block;color:#fff}
.user-mini span{color:#94a3b8;font-size:13px}
.side-nav{display:grid;gap:8px}
.side-link{width:100%;display:flex;align-items:center;gap:11px;border:0;background:transparent;color:#cbd5e1;border-radius:16px;padding:13px 14px;text-align:left;cursor:pointer;font-weight:850}
.side-link:hover,.side-link.active{background:#fff;color:#0f172a}
.sidebar-footer{margin-top:24px;display:grid;gap:10px}
.content{padding:28px;min-width:0}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}
.topbar h1{font-size:34px;letter-spacing:-.055em;margin:0}
.topbar p{color:#64748b;margin:4px 0 0}
.topbar-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.app-pill{display:inline-flex;align-items:center;gap:8px;border:1px solid #dbeafe;background:#eff6ff;color:#1d4ed8;border-radius:999px;padding:9px 13px;font-weight:850;font-size:13px}
.page{display:none}
.page.active{display:block}
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px}
.kpi{background:#fff;border:1px solid #e2e8f0;border-radius:24px;padding:20px;box-shadow:0 12px 30px rgba(15,23,42,.05)}
.kpi span{display:block;color:#64748b;font-weight:800;font-size:13px}
.kpi strong{display:block;font-size:30px;letter-spacing:-.05em;margin:5px 0}
.kpi small{color:#059669;font-weight:850}
.app-grid-2{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
.app-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.panel{background:#fff;border:1px solid #e2e8f0;border-radius:28px;padding:22px;box-shadow:0 12px 30px rgba(15,23,42,.05)}
.panel h2,.panel h3{margin-top:0;letter-spacing:-.04em}
.table-wrap{overflow:auto;border:1px solid #e2e8f0;border-radius:22px;background:#fff}
.data-table{width:100%;border-collapse:collapse;min-width:760px}
.data-table th,.data-table td{padding:14px 15px;border-bottom:1px solid #e2e8f0;text-align:left;vertical-align:top}
.data-table th{background:#f8fafc;color:#334155;font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.data-table tr:last-child td{border-bottom:0}
.status{display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:900}
.status.ok{background:#dcfce7;color:#166534}.status.warn{background:#ffedd5;color:#9a3412}.status.err{background:#fee2e2;color:#991b1b}.status.info{background:#dbeafe;color:#1d4ed8}
.progress{height:10px;background:#e2e8f0;border-radius:99px;overflow:hidden}.progress i{display:block;height:100%;background:linear-gradient(135deg,#00c897,#1597ff);border-radius:99px}
.map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.map-site{border:1px solid #e2e8f0;border-radius:20px;padding:14px;background:#f8fafc}
.map-site b{display:block}.map-site span{color:#64748b;font-size:13px}
.ai-recommendation{background:linear-gradient(135deg,#0f172a,#123a5c 58%,#064e3b);color:#fff;border-radius:28px;padding:24px}
.ai-recommendation h3{color:#fff}.ai-recommendation p{color:#dbeafe}
.device-card{display:grid;gap:12px}.device-top{display:flex;justify-content:space-between;gap:10px}.device-top b{font-size:18px}.device-meta{color:#64748b;font-size:13px}
.tender-card{display:grid;gap:13px}.tender-score{font-size:34px;font-weight:950;letter-spacing:-.05em;color:#047857}
.doc-list{display:grid;gap:8px}.doc-list label{display:flex;gap:10px;align-items:center;background:#f8fafc;border:1px solid #e2e8f0;border-radius:14px;padding:10px}
.market-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.market-card{background:#fff;border:1px solid #e2e8f0;border-radius:22px;padding:18px}.market-card strong{font-size:26px}.market-card span{display:block;color:#64748b;font-size:13px;font-weight:800}
.mobile-app-menu{display:none}
@media(max-width:1100px){
 .app-layout{grid-template-columns:1fr}.sidebar{display:none;position:fixed;inset:0 20% 0 0;z-index:500}.sidebar.open{display:block}.mobile-app-menu{display:inline-flex}
 .app-grid-2,.app-grid-3,.market-grid{grid-template-columns:1fr 1fr}.kpi-row{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
 .login-card{grid-template-columns:1fr}.login-brand,.login-panel{padding:28px}.login-brand h1{font-size:34px}
 .content{padding:16px}.topbar{display:block}.topbar-actions{margin-top:14px}.app-grid-2,.app-grid-3,.market-grid,.kpi-row,.map-grid{grid-template-columns:1fr}
}