:root {
  --ink: #0f2a4a;
  --head: #0c2747;
  --muted: #5b7da6;
  --teal: #0284c7;
  --teal-d: #0369a1;
  --grad: linear-gradient(135deg,#0284c7,#0ea5e9);
  --amber: #f59e0b;
  --amber-d: #d97706;
  --cream: #eaf4ff;
  --line: rgba(14,120,200,.15);
  --shadow: 0 12px 34px rgba(12, 90, 160, .12);
  --radius: 18px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink); line-height: 1.55; -webkit-font-smoothing: antialiased;
  background: radial-gradient(1100px 500px at 18% -10%, rgba(56,189,248,.16), transparent), linear-gradient(135deg, #eaf4ff, #e0efff 50%, #ecf8ff); background-attachment: fixed;
}
h1, h2, h3 { font-family: inherit; line-height: 1.12; letter-spacing: -.3px; color: var(--head); }
b { font-weight: 700; }
a { color: inherit; }

/* Buttons */
.btn {
  display: inline-block; padding: 14px 26px; border-radius: 999px; font-weight: 700;
  text-decoration: none; cursor: pointer; border: 0; font-size: 16px; transition: transform .12s, background .12s, box-shadow .12s;
}
.btn--primary { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(14,165,233,.4); }
.btn--primary:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.55); }
.btn--ghost:hover { border-color: #fff; }
.btn--dark { background: var(--teal-d); color: #fff; white-space: nowrap; }
.btn--dark:hover { background: #075985; }
#tariffs .btn--ghost, #zapis .btn--ghost { color: var(--teal-d); border-color: var(--teal); }

/* Hero */
.hero {
  background: radial-gradient(1200px 500px at 80% -10%, #38bdf8 0%, transparent 60%),
              linear-gradient(135deg, #0ea5e9 0%, #0369a1 55%, #0c2747 100%);
  color: #fff; padding-bottom: 70px;
}
.nav { max-width: 1080px; margin: 0 auto; padding: 20px 22px; display: flex; align-items: center; justify-content: space-between; }
.nav__brand { font-size: 18px; letter-spacing: .3px; }
.nav__brand b { font-weight: 800; }
.nav__cta { background: rgba(255,255,255,.14); padding: 9px 18px; border-radius: 999px; text-decoration: none; font-weight: 700; font-size: 14px; }
.nav__cta:hover { background: rgba(255,255,255,.24); }
.hero__inner { max-width: 820px; margin: 0 auto; padding: 36px 22px 0; text-align: center; }
.badge { display: inline-block; background: rgba(255,255,255,.13); border: 1px solid rgba(255,255,255,.25); padding: 7px 16px; border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 22px; }
.hero h1 { font-size: clamp(34px, 6vw, 60px); margin-bottom: 18px; }
.hl { color: #bae6fd; font-style: italic; }
.hero__sub { font-size: clamp(16px, 2.2vw, 20px); opacity: .94; max-width: 660px; margin: 0 auto 30px; }
.hero__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 26px; }
.hero__trust { display: flex; gap: 22px; justify-content: center; flex-wrap: wrap; font-size: 14px; opacity: .9; }

/* Sections */
.section { max-width: 1080px; margin: 0 auto; padding: 72px 22px; }
.section--alt { max-width: none; background: var(--cream); }
.section--alt > * { max-width: 1080px; margin-left: auto; margin-right: auto; }
.section__title { font-size: clamp(26px, 4vw, 40px); text-align: center; margin-bottom: 14px; }
.section__lead { text-align: center; color: var(--muted); max-width: 680px; margin: 0 auto 40px; font-size: 17px; }

/* Grid + cards */
.grid { display: grid; gap: 20px; }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.section--alt .card { box-shadow: var(--shadow); border-color: transparent; }
.usp__icon { font-size: 30px; margin-bottom: 12px; }
.usp h3 { font-size: 19px; margin-bottom: 8px; }
.usp p, .who p, .res p { color: var(--muted); font-size: 15px; }
.who b { display: block; margin-bottom: 8px; font-size: 18px; }
.res { display: flex; gap: 16px; align-items: flex-start; }
.res span { flex: none; width: 38px; height: 38px; border-radius: 50%; background: var(--teal); color: #fff; display: grid; place-items: center; font-weight: 800; font-family: Georgia, serif; }

/* Modules */
.modules { list-style: none; display: grid; gap: 14px; max-width: 820px; margin: 0 auto; }
.module { display: flex; gap: 18px; align-items: flex-start; background: var(--cream); border-radius: 14px; padding: 18px 22px; }
.module--star { background: #fff; border: 2px solid var(--teal); }
.module__n { flex: none; width: 36px; height: 36px; border-radius: 50%; background: var(--teal-d); color: #fff; display: grid; place-items: center; font-weight: 800; font-family: Georgia, serif; }
.module--star .module__n { background: var(--amber); }
.module b { font-size: 17px; }
.module p { color: var(--muted); font-size: 15px; margin-top: 3px; }
.tag { display: inline-block; background: #fde8d3; color: var(--amber-d); font-size: 11px; font-weight: 800; padding: 2px 9px; border-radius: 999px; margin-left: 8px; vertical-align: middle; text-transform: uppercase; letter-spacing: .4px; font-family: -apple-system, "Segoe UI", sans-serif; }

/* Tariffs */
.tariffs { align-items: stretch; }
.tariff { display: flex; flex-direction: column; position: relative; }
.tariff--best { border: 2px solid var(--amber); box-shadow: 0 18px 50px rgba(240,138,60,.22); }
.tariff__flag { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--amber); color: #fff; font-size: 12px; font-weight: 800; padding: 5px 16px; border-radius: 999px; white-space: nowrap; }
.tariff__name { font-family: Georgia, serif; font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.tariff__price { font-size: 38px; font-weight: 800; color: var(--teal-d); margin-bottom: 18px; }
.tariff__price span { font-size: 16px; color: var(--muted); font-weight: 600; }
.tariff ul { list-style: none; margin-bottom: 22px; flex: 1; }
.tariff li { padding: 8px 0 8px 26px; position: relative; font-size: 15px; border-bottom: 1px solid var(--line); }
.tariff li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 800; }
.tariff .btn { text-align: center; }

.webinar { margin: 38px auto 0; max-width: 820px; background: linear-gradient(120deg, #fff, var(--cream)); border: 2px dashed var(--amber); border-radius: var(--radius); padding: 24px 28px; display: flex; align-items: center; gap: 24px; justify-content: space-between; flex-wrap: wrap; }
.webinar i { color: var(--amber-d); font-style: italic; }

/* FAQ */
.faq { max-width: 760px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 4px 20px; box-shadow: var(--shadow); }
.faq summary { cursor: pointer; font-weight: 700; padding: 16px 0; list-style: none; position: relative; }
.faq summary::after { content: "+"; position: absolute; right: 2px; font-size: 22px; color: var(--teal); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq p { color: var(--muted); padding-bottom: 16px; }

/* CTA form */
.cta { text-align: center; }
.lead { max-width: 460px; margin: 0 auto; display: grid; gap: 14px; }
.lead input, .lead select { padding: 15px 18px; border: 1.5px solid var(--line); border-radius: 12px; font-size: 16px; font-family: inherit; outline: none; }
.lead input:focus, .lead select:focus { border-color: var(--teal); }
.lead .btn { font-size: 17px; padding: 16px; }
.lead__note { font-size: 12px; color: var(--muted); }
.lead__ok { max-width: 520px; margin: 0 auto; background: #e9f6ee; border: 1px solid #bfe3cc; color: #1d6b3a; padding: 22px; border-radius: 14px; font-weight: 600; }

/* Footer */
.footer { background: var(--ink); color: #fff; text-align: center; padding: 36px 22px; }
.footer__sub { opacity: .65; font-size: 14px; margin-top: 8px; }

/* Responsive */
@media (max-width: 900px) { .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 760px) {
  .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .section { padding: 56px 20px; }
  .hero__trust { gap: 12px; font-size: 13px; }
  .webinar { flex-direction: column; text-align: center; }
}