/* PuraVoda — čistá voda z vašeho kohoutku
   Stylesheet for the landing page and legal pages */

:root {
  --blue-900: #0a3d6e;
  --blue-700: #0a5aa8;
  --blue-500: #1a86d0;
  --blue-300: #7cc0ec;
  --blue-050: #eef6fc;
  --ink: #1c2b36;
  --muted: #5a6b78;
  --line: #e2e8ee;
  --bg: #ffffff;
  --bg-soft: #f5f9fc;
  --green: #2e9e5b;
  --price: #14804a;
  --strike: #98a6b0;
  --radius: 14px;
  --maxw: 1120px;
  --shadow: 0 10px 30px rgba(10, 61, 110, 0.08);
  --shadow-sm: 0 4px 14px rgba(10, 61, 110, 0.07);
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Helvetica Neue", Arial, "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--blue-700); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

h1, h2, h3 { line-height: 1.2; color: var(--blue-900); font-weight: 700; }
h1 { font-size: clamp(1.8rem, 4vw, 2.7rem); margin: 0 0 .5em; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin: 0 0 .6em; }
h3 { font-size: 1.15rem; margin: 0 0 .4em; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--blue-900);
  color: #dceaf6;
  font-size: .82rem;
  text-align: center;
  padding: 7px 12px;
  letter-spacing: .01em;
}
.topbar strong { color: #fff; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(1.2) blur(6px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 66px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.25rem; color: var(--blue-900);
  text-decoration: none; letter-spacing: -.01em;
}
.brand .drop {
  width: 26px; height: 26px; flex: none;
  background: radial-gradient(circle at 35% 30%, var(--blue-300), var(--blue-500) 55%, var(--blue-700));
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  box-shadow: inset 0 -2px 4px rgba(0,0,0,.15);
}
.brand span.n2 { color: var(--blue-500); }
.nav { display: flex; gap: 22px; align-items: center; }
.nav a { color: var(--muted); text-decoration: none; font-size: .92rem; font-weight: 600; }
.nav a:hover { color: var(--blue-700); }
.header-cta {
  background: var(--blue-700); color: #fff !important; padding: 9px 16px;
  border-radius: 999px; font-size: .88rem;
}
.header-cta:hover { background: var(--blue-900); }
.nav-toggle { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  background: var(--blue-700); color: #fff; text-decoration: none;
  font-weight: 700; font-size: 1.05rem;
  padding: 15px 30px; border-radius: 999px; border: none; cursor: pointer;
  box-shadow: var(--shadow-sm); transition: transform .08s ease, background .2s ease;
}
.btn:hover { background: var(--blue-900); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-lg { font-size: 1.15rem; padding: 17px 38px; width: 100%; max-width: 380px; }
.btn-ghost { background: #fff; color: var(--blue-700); border: 1.5px solid var(--blue-300); box-shadow: none; }
.btn-ghost:hover { background: var(--blue-050); color: var(--blue-900); }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(180deg, var(--blue-050), #fff 78%); padding: 46px 0 40px; }
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 46px; align-items: center;
}
.hero-media {
  position: relative; background: #fff; border-radius: 20px; padding: 14px;
  box-shadow: var(--shadow); border: 1px solid var(--line);
}
.hero-media img { border-radius: 12px; width: 100%; object-fit: cover; }
.badge-genuine {
  position: absolute; top: 22px; left: 22px;
  background: #fff; color: var(--blue-900); font-weight: 700; font-size: .8rem;
  padding: 7px 13px; border-radius: 999px; box-shadow: var(--shadow-sm);
  display: inline-flex; align-items: center; gap: 6px;
}
.eyebrow {
  display: inline-block; color: var(--blue-700); background: var(--blue-050);
  font-weight: 700; font-size: .8rem; letter-spacing: .04em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 999px; margin-bottom: 16px;
}
.hero p.lead { font-size: 1.1rem; color: var(--muted); margin: 0 0 22px; max-width: 46ch; }

.price-row { display: flex; align-items: baseline; gap: 12px; margin: 4px 0 6px; flex-wrap: wrap; }
.price-now { font-size: 2.2rem; font-weight: 800; color: var(--price); }
.price-was { font-size: 1.2rem; color: var(--strike); text-decoration: line-through; }
.price-save {
  background: #e7f7ee; color: var(--price); font-weight: 700; font-size: .82rem;
  padding: 4px 10px; border-radius: 999px;
}
.price-note { font-size: .85rem; color: var(--muted); margin: 0 0 18px; }
.price-note .czk { color: var(--ink); font-weight: 600; }

.hero-cta-wrap { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.pay-trust { display: flex; align-items: center; gap: 14px; color: var(--muted); font-size: .82rem; flex-wrap: wrap; }
.pay-trust span { display: inline-flex; align-items: center; gap: 6px; }

.usp-row { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 26px; }
.usp {
  display: flex; align-items: center; gap: 9px; font-size: .9rem; font-weight: 600; color: var(--ink);
}
.usp .ico { color: var(--blue-500); flex: none; }

/* ---------- Section base ---------- */
section.block { padding: 56px 0; }
section.soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 38px; }
.section-head p { color: var(--muted); font-size: 1.05rem; margin: 0; }

/* ---------- Benefits ---------- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; box-shadow: var(--shadow-sm);
}
.card .ico-box {
  width: 48px; height: 48px; border-radius: 12px; background: var(--blue-050);
  display: flex; align-items: center; justify-content: center; color: var(--blue-700);
  margin-bottom: 14px;
}
.card h3 { margin-bottom: 6px; }
.card p { margin: 0; color: var(--muted); font-size: .93rem; }

/* ---------- Reduces list ---------- */
.reduce-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.reduce-list { list-style: none; padding: 0; margin: 0; }
.reduce-list li {
  display: flex; gap: 12px; align-items: flex-start; padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.reduce-list li:last-child { border-bottom: none; }
.reduce-list .tick {
  flex: none; width: 24px; height: 24px; border-radius: 50%; background: var(--blue-050);
  color: var(--blue-700); display: flex; align-items: center; justify-content: center; margin-top: 2px;
}
.reduce-list .no { background: #fdeef1; color: #c14b63; }
.reduce-list strong { color: var(--ink); }
.reduce-list small { color: var(--muted); display: block; }
.reduce-media img { border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--line); }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step { text-align: center; }
.step .num {
  width: 44px; height: 44px; border-radius: 50%; background: var(--blue-700); color: #fff;
  font-weight: 800; font-size: 1.1rem; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 12px;
}
.step p { color: var(--muted); font-size: .92rem; margin: 4px 0 0; }

/* ---------- Split (image + text) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.split.rev .split-media { order: 2; }
.split-media img { border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--line); }
.split ul { padding-left: 0; list-style: none; margin: 18px 0 0; }
.split ul li { padding: 8px 0 8px 30px; position: relative; color: var(--ink); }
.split ul li::before {
  content: ""; position: absolute; left: 0; top: 13px; width: 16px; height: 16px;
  background: var(--blue-500); border-radius: 50%;
  box-shadow: inset 0 0 0 3px #fff, 0 0 0 2px var(--blue-300);
}

/* ---------- Specs ---------- */
.specs { max-width: 760px; margin: 0 auto; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.specs table { width: 100%; border-collapse: collapse; }
.specs td { padding: 14px 20px; border-bottom: 1px solid var(--line); font-size: .95rem; }
.specs tr:last-child td { border-bottom: none; }
.specs td:first-child { color: var(--muted); width: 45%; }
.specs td:last-child { font-weight: 600; color: var(--ink); }
.specs tr:nth-child(odd) { background: var(--bg-soft); }

/* ---------- Price / order block ---------- */
.order {
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
  color: #fff; border-radius: 22px; padding: 44px 40px; text-align: center;
  box-shadow: var(--shadow);
}
.order h2 { color: #fff; }
.order p { color: #cfe4f6; max-width: 52ch; margin: 0 auto 8px; }
.order .price-row { justify-content: center; margin: 20px 0 6px; }
.order .price-now { color: #fff; }
.order .price-was { color: #9dc2e4; }
.order .price-save { background: rgba(255,255,255,.16); color: #eaf5ff; }
.order .btn { background: #fff; color: var(--blue-900); margin-top: 18px; }
.order .btn:hover { background: #eaf5ff; }
.order .fineprint { color: #aecbe6; font-size: .82rem; margin-top: 16px; }

/* ---------- FAQ ---------- */
.faq { max-width: 780px; margin: 0 auto; }
.faq details {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 20px;
  margin-bottom: 12px; background: #fff;
}
.faq summary {
  cursor: pointer; font-weight: 700; color: var(--blue-900); padding: 14px 0; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--blue-500); font-weight: 400; }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { margin: 0 0 16px; color: var(--muted); }

/* ---------- Trust badges ---------- */
.trust-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.trust { text-align: center; padding: 20px; }
.trust .ico-box { margin: 0 auto 12px; }
.trust h3 { font-size: 1rem; }
.trust p { color: var(--muted); font-size: .88rem; margin: 0; }

/* ---------- Footer ---------- */
.site-footer { background: #0b2740; color: #b9cbdb; padding: 48px 0 26px; font-size: .9rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.site-footer h4 { color: #fff; font-size: .95rem; margin: 0 0 14px; letter-spacing: .02em; }
.site-footer a { color: #b9cbdb; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 9px; }
.legal-entity { line-height: 1.7; }
.legal-entity .name { color: #fff; font-weight: 700; }
.footer-bottom {
  border-top: 1px solid #1c3a56; margin-top: 34px; padding-top: 18px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  color: #7f97ac; font-size: .82rem;
}
.footer-bottom .pays { display: flex; gap: 8px; align-items: center; }
.chip { background: #12324c; border: 1px solid #1c3a56; border-radius: 6px; padding: 3px 9px; font-size: .72rem; color: #cdddea; }

/* ---------- Legal pages ---------- */
.legal { padding: 44px 0 60px; }
.legal .wrap { max-width: 820px; }
.legal h1 { margin-bottom: .2em; }
.legal .updated { color: var(--muted); font-size: .9rem; margin: 0 0 30px; }
.legal h2 { font-size: 1.3rem; margin-top: 34px; }
.legal h3 { margin-top: 22px; }
.legal p, .legal li { color: var(--ink); }
.legal ul { padding-left: 20px; }
.legal .entity-box {
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 24px; margin: 20px 0;
}
.legal .entity-box p { margin: 4px 0; }
.back-link { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 8px; color: var(--blue-700); text-decoration: none; font-weight: 600; font-size: .9rem; }

.disclaimer {
  background: var(--bg-soft); border: 1px solid var(--line); border-left: 4px solid var(--blue-300);
  border-radius: 10px; padding: 16px 20px; margin-top: 30px; color: var(--muted); font-size: .86rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero-media { order: -1; }
  .cards, .trust-row { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .reduce-grid, .split { grid-template-columns: 1fr; gap: 26px; }
  .split.rev .split-media { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .nav a:not(.header-cta) { display: none; }
  .header-cta { padding: 8px 14px; font-size: .82rem; }
  .cards, .trust-row, .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .order { padding: 32px 22px; }
  .btn-lg { max-width: 100%; }
}