/* Rotametric – arkusz stylow (czysty CSS) */
:root{
  --navy-deep:#141d3a;
  --navy:#1e2a52;
  --navy-light:#31427a;
  --accent:#3b7dd8;
  --accent-dark:#2a63b4;
  --bg:#fbfcfe;
  --surface:#ffffff;
  --surface-alt:#f1f4f9;
  --text:#1b2338;
  --muted:#616d85;
  --border:#dde3ec;
  --radius:14px;
  --shadow:0 1px 2px rgba(30,42,82,.06), 0 12px 32px -18px rgba(30,42,82,.35);
  --gradient-navy:linear-gradient(140deg,var(--navy-deep),var(--navy-light));
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--text);
  font-family:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:"Sora",system-ui,sans-serif;letter-spacing:-.022em;line-height:1.15;font-weight:600}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-family:"Sora",sans-serif;font-weight:600;font-size:1.05rem}
.logo-mark{width:32px;height:32px;border-radius:9px;background:var(--gradient-navy);color:#fff;display:grid;place-items:center;font-size:.85rem;font-weight:700}
.nav{display:flex;align-items:center;gap:22px}
.nav a{font-size:.9rem;font-weight:500;color:var(--muted)}
.nav a:hover{color:var(--text)}
.header-actions{display:flex;align-items:center;gap:12px}
.lang-switch{display:inline-flex;border:1px solid var(--border);border-radius:999px;overflow:hidden;background:var(--surface)}
.lang-switch button{border:0;background:transparent;padding:6px 11px;font:inherit;font-size:.78rem;font-weight:600;color:var(--muted);cursor:pointer}
.lang-switch button.active{background:var(--navy);color:#fff}
.nav-toggle{display:none;border:1px solid var(--border);background:var(--surface);border-radius:10px;padding:8px 10px;cursor:pointer;font-size:1rem}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;
  padding:11px 18px;font:inherit;font-size:.92rem;font-weight:600;cursor:pointer;transition:.18s ease;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 24px -12px rgba(59,125,216,.65)}
.btn-primary:hover{background:var(--accent-dark)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-light)}
.btn-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.18)}
.btn-lg{padding:14px 24px;font-size:1rem}
.btn-block{width:100%}

/* ---------- Sections ---------- */
section{scroll-margin-top:80px}
.surface-navy{background-image:var(--gradient-navy);color:#fff}
.section{padding:80px 0}
.section-alt{background:var(--surface-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:620px}
.section-head h2{font-size:2rem}
.section-head p{margin-top:12px;color:var(--muted)}

/* ---------- Hero ---------- */
.hero-grid{display:grid;gap:48px;align-items:center;padding:84px 0}
.tag{display:inline-block;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.1);
  border-radius:999px;padding:5px 13px;font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.85)}
.hero-grid h1{margin-top:22px;font-size:2.6rem;color:#fff}
.hero-grid p.lead{margin-top:20px;max-width:34rem;color:rgba(255,255,255,.78)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px;padding-top:28px;border-top:1px solid rgba(255,255,255,.16)}
.stats .v{font-family:"Sora",sans-serif;font-size:1.85rem;font-weight:600;color:#fff}
.stats .k{margin-top:4px;font-size:.76rem;line-height:1.35;color:rgba(255,255,255,.65)}
.hero-img{border-radius:18px;border:1px solid rgba(255,255,255,.15);box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}

/* ---------- Cards / grids ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}
.grid-3{display:grid;gap:20px;grid-template-columns:1fr;margin-top:44px}
.card h3{margin-top:18px;font-size:1.06rem}
.card p{margin-top:8px;font-size:.9rem;color:var(--muted)}
.icon{width:40px;height:40px;border-radius:10px;background:var(--surface-alt);color:var(--accent);display:grid;place-items:center}
.icon svg{width:20px;height:20px}
.split{display:grid;gap:48px;align-items:center}
.split img{border-radius:18px;border:1px solid var(--border);box-shadow:var(--shadow)}
.steps{margin-top:32px;list-style:none;display:grid;gap:26px}
.step{display:flex;gap:18px}
.step-num{flex:0 0 auto;width:34px;height:34px;border-radius:999px;background:var(--navy);color:#fff;display:grid;place-items:center;
  font-family:"Sora",sans-serif;font-size:.85rem;font-weight:600}
.step h3{font-size:1.05rem}
.step p{margin-top:5px;font-size:.9rem;color:var(--muted)}
.benefits{list-style:none;margin-top:28px;display:grid;gap:14px}
.benefits li{display:flex;gap:12px;align-items:flex-start;font-size:.94rem}
.benefits svg{width:20px;height:20px;flex:0 0 auto;color:var(--accent);margin-top:2px}
.cta-band{display:flex;flex-direction:column;gap:22px;padding:62px 0}
.cta-band h2{font-size:1.7rem;color:#fff}
.cta-band p{margin-top:8px;color:rgba(255,255,255,.72);font-size:.94rem;max-width:36rem}
.center{text-align:center}
.center .section-head{margin:0 auto}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.7);padding:34px 0;font-size:.85rem}
.footer-inner{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center}
.site-footer a{color:#fff}

/* ---------- Forms ---------- */
.form-page{background:var(--surface-alt);min-height:100vh}
.form-wrap{max-width:860px;margin:0 auto;padding:52px 20px 72px}
.back-link{display:inline-flex;gap:6px;align-items:center;font-size:.88rem;font-weight:500;color:var(--muted)}
.back-link:hover{color:var(--text)}
.form-wrap h1{margin-top:22px;font-size:2rem}
.form-wrap>p.sub{margin-top:8px;color:var(--muted)}
form section{margin-top:22px}
form h2{font-size:1.05rem}
.field-grid{display:grid;gap:16px;margin-top:20px;grid-template-columns:1fr}
label{display:block;font-size:.83rem;font-weight:600;margin-bottom:6px}
input,textarea{width:100%;font:inherit;font-size:.92rem;padding:10px 12px;border:1px solid var(--border);border-radius:9px;background:var(--surface);color:var(--text)}
input:focus,textarea:focus{outline:2px solid rgba(59,125,216,.35);outline-offset:1px;border-color:var(--accent)}
.day-row{border:1px solid var(--border);background:var(--surface-alt);border-radius:11px;padding:14px;margin-top:14px}
.day-grid{display:grid;gap:12px;align-items:end;grid-template-columns:1fr}
.day-name{font-size:.9rem;font-weight:700}
.day-total{font-family:"Sora",sans-serif;font-size:.9rem;font-weight:600;font-variant-numeric:tabular-nums}
.day-row .notes{margin-top:12px;background:#fff}
.summary{background-image:var(--gradient-navy);color:#fff;border:0}
.summary h2{color:#fff}
.summary-grid{display:grid;gap:20px;margin-top:20px;grid-template-columns:repeat(3,1fr)}
.summary .v{font-family:"Sora",sans-serif;font-size:1.8rem;font-weight:600;font-variant-numeric:tabular-nums}
.summary .k{font-size:.76rem;color:rgba(255,255,255,.68);margin-top:2px}
.alert{display:flex;gap:12px;align-items:flex-start;margin-top:26px;padding:18px;border-radius:var(--radius);
  border:1px solid rgba(59,125,216,.4);background:rgba(59,125,216,.07)}
.alert svg{width:20px;height:20px;color:var(--accent);flex:0 0 auto;margin-top:2px}
.alert p.t{font-weight:700}
.alert p.d{font-size:.88rem;color:var(--muted);margin-top:3px}
.alert.error{border-color:rgba(200,60,60,.45);background:rgba(200,60,60,.07)}
.alert.error svg{color:#c83c3c}
.hidden{display:none}
.toast{position:fixed;right:18px;bottom:18px;z-index:80;background:var(--navy);color:#fff;padding:14px 18px;border-radius:11px;
  box-shadow:0 18px 40px -18px rgba(0,0,0,.6);max-width:320px;font-size:.88rem}
.toast.error{background:#8f2b2b}
.toast .t{font-weight:700;margin-bottom:2px}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .nav{display:none}
  .nav.open{display:flex;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:14px;
    background:var(--surface);border-bottom:1px solid var(--border);padding:18px 20px}
  .nav-toggle{display:block}
}
@media (min-width:640px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .field-grid{grid-template-columns:repeat(2,1fr)}
  .day-grid{grid-template-columns:1.2fr 1fr 1fr .9fr auto}
  .hero-grid h1{font-size:3rem}
}
@media (min-width:960px){
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .hero-grid{grid-template-columns:1.05fr 1fr}
  .split{grid-template-columns:1fr 1fr}
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between}
  .section{padding:96px 0}
}