@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
:root{
  --bg:#f6f8f9; --surface:#ffffff; --ink:#15191d; --muted:#8a9399; --faint:#9aa19e;
  --line:#e3e8eb; --line-soft:#eef2f4; --accent:#159c95; --accent-dk:#0e7a74; --accent-br:#26c5be; --accent-deep:#0f4f4b; --amber:#ba7517; --danger:#c0392b;
  --radius:14px; --radius-sm:10px; --maxw:1080px;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;padding:11px 20px;border-radius:var(--radius-sm);border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;transition:.15s}
.btn:hover{background:var(--accent-dk);border-color:var(--accent-dk)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{background:#fff;border-color:var(--muted)}

/* header */
header.nav{position:sticky;top:0;z-index:50;background:rgba(246,248,249,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.nav .wrap{display:flex;align-items:center;gap:20px;height:62px}
.logo{font-weight:600;font-size:18px;display:flex;align-items:center;gap:8px}
.logo .dot{width:22px;height:22px;border-radius:6px;background:var(--accent);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:13px}
.logo-img{height:24px;width:auto;display:inline-block;vertical-align:middle}
.side .logo-img{height:22px;max-width:100%;width:auto}
.nav-links{display:flex;gap:24px;margin-left:auto;font-size:15px;color:var(--muted)}
.nav-links a:hover{color:var(--ink)}

/* hero */
.hero{padding:80px 0 56px;text-align:center}
.hero h1{font-size:46px;line-height:1.12;font-weight:600;letter-spacing:-.02em;max-width:760px;margin:0 auto 20px}
.hero p.lead{font-size:20px;color:var(--muted);max-width:620px;margin:0 auto 32px}
.hero .cta{display:flex;gap:12px;justify-content:center}
.pill{display:inline-block;font-size:13px;font-weight:500;color:var(--accent-dk);background:#e2f6f4;padding:6px 14px;border-radius:999px;margin-bottom:22px}
.kpis{display:flex;gap:40px;justify-content:center;margin-top:48px;flex-wrap:wrap}
.kpis .k{text-align:center}
.kpis .k b{display:block;font-size:30px;font-weight:600}
.kpis .k span{font-size:14px;color:var(--muted)}

/* sections */
section{padding:56px 0}
.sec-head{text-align:center;max-width:620px;margin:0 auto 40px}
.sec-head h2{font-size:32px;font-weight:600;letter-spacing:-.01em;margin-bottom:12px}
.sec-head p{font-size:17px;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.card .ic{width:42px;height:42px;border-radius:10px;background:#e2f6f4;color:var(--accent-dk);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.card p{font-size:15px;color:var(--muted)}
.alt{background:#eef1ef}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:s}
.step{counter-increment:s}
.step .n{width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;margin-bottom:14px}
.step .n::before{content:counter(s)}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px}
.step p{font-size:15px;color:var(--muted)}

/* pricing */
.price{max-width:460px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px;text-align:center}
.price .amt{font-size:38px;font-weight:600;margin:6px 0}
.price ul{list-style:none;text-align:left;margin:20px 0;display:flex;flex-direction:column;gap:10px}
.price li{font-size:15px;display:flex;gap:10px;align-items:flex-start}
.price li .ti{color:var(--accent);margin-top:3px}

footer{border-top:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:14px;text-align:center}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(20,25,22,.5);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal-bg.on{display:flex}
.modal{background:var(--surface);border-radius:var(--radius);padding:32px;width:100%;max-width:400px}
.modal h3{font-size:22px;font-weight:600;margin-bottom:6px}
.modal p.sub{font-size:14px;color:var(--muted);margin-bottom:20px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}
.field input{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:15px;font-family:inherit}
.field input:focus{outline:none;border-color:var(--accent)}
.demo-hint{font-size:13px;background:#e2f6f4;color:var(--accent-dk);padding:10px 12px;border-radius:var(--radius-sm);margin-bottom:16px}

@media(max-width:820px){.grid,.steps{grid-template-columns:1fr}.hero h1{font-size:34px}.nav-links{display:none}}

/* ===== Stavové komponenty: chyba / prázdno / načítavanie / formulárové hlášky ===== */
@keyframes pd-spin{to{transform:rotate(360deg)}}
.spinner{display:inline-block;width:18px;height:18px;border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:pd-spin .7s linear infinite;vertical-align:-3px}
.state{max-width:440px;margin:48px auto;text-align:center;padding:8px}
.state .ic{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:30px}
.state .ic.err{background:#fcebe9;color:var(--danger)}
.state .ic.empty{background:var(--bg);color:var(--muted)}
.state .ic.load{background:#e2f6f4;color:var(--accent-dk)}
.state .ic.lock{background:#faf1e2;color:var(--amber)}
.state h2{font-size:18px;font-weight:600;margin:0 0 6px;color:var(--ink)}
.state p{font-size:14px;color:var(--muted);line-height:1.55;margin:0 0 18px}
.state .btn-sm{font:inherit;font-size:14px;padding:9px 18px;border:1px solid var(--line);background:#fff;border-radius:var(--radius-sm);cursor:pointer;color:var(--ink)}
.state .btn-sm:hover{border-color:var(--accent);color:var(--accent-dk)}
.state .btn-sm.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.state .btn-sm.primary:hover{background:var(--accent-dk)}
/* formulárové hlášky (login/registrácia/reset) */
.formmsg{display:flex;gap:9px;align-items:flex-start;font-size:13px;line-height:1.5;padding:10px 12px;border-radius:var(--radius-sm);margin-bottom:12px}
.formmsg i{font-size:16px;flex:0 0 auto;margin-top:1px}
.formmsg.err{background:#fcebe9;color:#a5281b}
.formmsg.ok{background:#e2f6f4;color:var(--accent-dk)}
.formmsg.info{background:#eef1f4;color:#3a4654}
/* nenápadný banner (server nedostupný) */
.banner{position:fixed;left:50%;transform:translateX(-50%);bottom:18px;z-index:300;background:var(--ink,#1b2420);color:#fff;font-size:13px;padding:10px 16px;border-radius:999px;box-shadow:0 6px 24px rgba(0,0,0,.22);display:none;align-items:center;gap:9px}
.banner.on{display:flex}