/* SpectraShield PPF — štýly webu */

:root {
  --bg: #0F0F10;
  --bg-soft: #131314;
  --black: #1B1B1B;
  --panel: #17171A;
  --panel-2: #151516;
  --line: #2A2A2D;
  --line-2: #2E2E32;
  --line-3: #3A3A3E;
  --text: #F5F5F6;
  --muted: #A0A0A5;
  --muted-2: #B2B2B7;
  --dim: #8B8B90;
  --red: #B02C2F;
  --red-bright: #E05558;
  --red-soft: #2A1A1B;
  --red-border: #5A2C2F;
  --gold: #C4A931;
  --steel: #C9CACC;
  --radius: 10px;
  --wrap: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--red-bright); text-decoration: none; }
a:hover { color: #EE8082; }

h1, h2, h3 {
  font-family: 'Montserrat', system-ui, sans-serif;
  letter-spacing: -0.01em;
  margin: 0;
}

h1 { font-size: clamp(34px, 5.2vw, 62px); line-height: 1.06; font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(26px, 3.4vw, 40px); line-height: 1.14; font-weight: 700; }
h3 { font-size: 18px; font-weight: 600; }
p { margin: 0; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

section { padding: clamp(48px, 7vw, 96px) 0; border-bottom: 1px solid #27272A; }
section.tight { padding: clamp(28px, 3vw, 36px) 0; }
.bg-black { background: var(--black); }
.bg-soft { background: var(--bg-soft); }

.eyebrow {
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--gold);
  display: block;
}

.lead { font-size: clamp(16px, 1.3vw, 20px); line-height: 1.6; color: var(--muted-2); }
.muted { color: var(--muted); }
.small { font-size: 14px; }

/* ---------- hlavička ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 15, 16, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #27272A;
}
.site-header .wrap {
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 13px; color: var(--text); }
.brand img { height: 46px; width: auto; }
.brand .name {
  font-family: 'Montserrat', sans-serif;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1;
}
.brand .sub {
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.42em;
  color: var(--gold);
  padding-top: 4px;
  line-height: 1;
}
.nav { display: flex; align-items: center; gap: 32px; font-size: 15px; }
.nav .btn { display: none; }
.nav a { color: #C9CACC; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); }

.burger {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line-3);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* ---------- tlačidlá ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 26px;
  border-radius: 6px;
  background: var(--red);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border: 1px solid var(--red);
  cursor: pointer;
  text-align: center;
}
.btn:hover { background: #C8363A; color: #fff; }
.btn-sm { min-height: 46px; padding: 0 22px; font-size: 15px; }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--line-3);
  color: #EDEDEF;
  font-weight: 500;
}
.btn-ghost:hover { background: #17171A; color: var(--text); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

.badge {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 4px;
  background: var(--red-soft);
  border: 1px solid #4A2426;
  color: #E9A5A6;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

/* ---------- mriežky ---------- */

.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 480px) minmax(0, 1fr);
  gap: 80px;
  align-items: center;
}
.split.wide-text { grid-template-columns: minmax(0, 660px) minmax(0, 1fr); }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}
.card h3 { margin-bottom: 8px; }
.card p { font-size: 15px; color: var(--muted); line-height: 1.6; }
.card svg { color: var(--red-bright); margin-bottom: 12px; }
.card.row { display: flex; gap: 16px; align-items: flex-start; padding: 24px; }
.card.row svg { flex-shrink: 0; margin: 2px 0 0; }

.media { border-radius: var(--radius); overflow: hidden; background: var(--panel-2); }
.media img { width: 100%; height: 100%; object-fit: cover; }
.media.r169 { aspect-ratio: 16 / 9; }

/* ---------- hero ---------- */

.hero .split { gap: 72px; align-items: center; }
.hero-copy { display: flex; flex-direction: column; gap: 26px; align-items: flex-start; }
.hero h1 .accent { color: var(--red-bright); }

/* ---------- štatistiky ---------- */

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; }
.stat .num {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 700;
  color: var(--gold);
  line-height: 1.2;
}
.stat .lbl { font-size: 14px; color: var(--muted); padding-top: 4px; }

/* ---------- zloženie fólie ---------- */

.layer {
  padding: 16px 24px;
  border-radius: 8px;
  background: var(--panel-2);
  border: 1px solid #33333A;
}
.layer.top { background: var(--red-soft); border-color: var(--red-border); }
.layer .t { font-size: 16px; font-weight: 600; }
.layer .d { font-size: 14px; color: var(--muted-2); padding-top: 3px; }
.paint-line {
  height: 36px;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid #33333A;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: #9A9AA0;
}

.caption {
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: #9A9AA0;
  padding-top: 8px;
}

/* ---------- produktové karty ---------- */

.product {
  background: var(--panel-2);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.product.featured { border-color: var(--red-border); }
.product > .media { border-radius: 0; height: 170px; border-bottom: 1px solid var(--line-2); }
.product .body { padding: 26px; display: flex; flex-direction: column; gap: 16px; flex: 1; }
.product .title {
  font-family: 'Montserrat', sans-serif;
  font-size: 23px;
  font-weight: 800;
  letter-spacing: 0.01em;
}
.product .title span { color: var(--red-bright); }
.product .tag { font-size: 15px; color: var(--muted); padding-top: 6px; }
.product p { font-size: 15px; color: var(--muted-2); line-height: 1.6; }
.spec { display: flex; flex-direction: column; gap: 9px; }
.spec div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}
.spec div:last-child { border-bottom: 0; padding-bottom: 0; }
.spec span:first-child { color: #9A9AA0; }
.slogan {
  margin-top: auto;
  padding-top: 12px;
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--gold);
  line-height: 1.5;
}

/* ---------- SGS ---------- */

.metric {
  background: var(--panel-2);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 26px;
}
.metric.key { border-color: var(--red-border); }
.metric .val {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--gold);
}
.metric.key .val { color: var(--red-bright); }
.metric .lbl {
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  padding-top: 8px;
}
.metric .d { font-size: 14px; color: var(--muted); line-height: 1.55; padding-top: 8px; }

.chips { display: flex; flex-wrap: wrap; gap: 12px; }
.chip {
  padding: 10px 16px;
  border-radius: 4px;
  background: var(--panel);
  border: 1px solid var(--line-2);
  font-size: 14px;
  color: var(--muted-2);
}
.fineprint { font-size: 13px; line-height: 1.6; color: var(--dim); }

/* ---------- tabuľka ---------- */

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.compare {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 15px;
}
table.compare th {
  background: var(--black);
  text-align: left;
  padding: 18px 26px;
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--red-bright);
}
table.compare td { padding: 18px 26px; border-top: 1px solid var(--line); }
table.compare tr:nth-child(even) td { background: #141415; }
table.compare td:first-child { color: var(--muted); }

/* ---------- CTA pruh ---------- */

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  padding: 28px 32px;
  border-radius: var(--radius);
  background: var(--red-soft);
  border: 1px solid var(--red-border);
}
.cta-band h3 { font-family: 'Montserrat', sans-serif; font-size: 21px; font-weight: 700; }
.cta-band p { font-size: 15px; color: var(--muted-2); padding-top: 5px; }

/* ---------- kroky ---------- */

.step { padding-top: 22px; border-top: 2px solid #33333A; }
.step.first { border-top-color: var(--red); }
.step .n {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #9A9AA0;
}
.step.first .n { color: var(--red-bright); }
.step h3 { padding: 12px 0 8px; font-size: 19px; }
.step p { font-size: 15px; color: var(--muted); line-height: 1.6; }

/* ---------- FAQ ---------- */

.faq { border-top: 1px solid var(--line-2); }
.faq details { border-bottom: 1px solid var(--line-2); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 36px 22px 0;
  font-size: 18px;
  font-weight: 600;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 18px;
  font-size: 24px;
  font-weight: 400;
  color: var(--red-bright);
}
.faq details[open] summary::after { content: "–"; }
.faq .answer { padding: 0 36px 22px 0; font-size: 15px; line-height: 1.65; color: var(--muted); }

/* ---------- formulár ---------- */

.form {
  background: var(--panel-2);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field label, .group > span { font-size: 14px; color: var(--muted-2); }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  width: 100%;
  min-height: 50px;
  padding: 13px 14px;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--line-3);
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
}
textarea { min-height: 120px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--red-bright); outline-offset: 1px; }
.group { display: flex; flex-direction: column; gap: 10px; }
.checks { display: flex; flex-wrap: wrap; gap: 10px 24px; }
.checks label { display: flex; align-items: center; gap: 10px; font-size: 15px; min-height: 32px; color: var(--text); }
input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--red); min-height: 0; }
.form-foot { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.consent { font-size: 13px; line-height: 1.55; color: var(--muted); max-width: 440px; }

.contact-list { display: flex; flex-direction: column; gap: 14px; }
.contact-list div { display: flex; align-items: flex-start; gap: 12px; font-size: 16px; }
.contact-list svg { color: var(--red-bright); flex-shrink: 0; margin-top: 3px; }
.note-box {
  padding: 20px;
  border-radius: var(--radius);
  background: var(--red-soft);
  border: 1px solid var(--red-border);
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted-2);
}

/* ---------- päta ---------- */

.site-footer { background: var(--black); border-top: 1px solid #27272A; border-bottom: 0; padding: 48px 0; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; align-items: center; }
.site-footer img.logo { height: 110px; width: auto; }
.foot-brand { display: flex; align-items: center; gap: 26px; }
.foot-brand .tag {
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold);
}
.foot-brand .co { font-size: 14px; line-height: 1.6; color: var(--muted); max-width: 340px; padding-top: 8px; }
.foot-links { display: flex; gap: 48px; font-size: 15px; }
.foot-links ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.foot-links a { color: #C9CACC; }

/* ---------- jednoduchá textová stránka ---------- */

.prose { max-width: 760px; }
.prose h2 { margin: 40px 0 12px; font-size: 24px; }
.prose p, .prose li { color: var(--muted-2); font-size: 16px; line-height: 1.7; }
.prose ul { padding-left: 20px; }
.prose li { margin-bottom: 8px; }

/* ---------- responzívne ---------- */

@media (max-width: 1000px) {
  .split, .split.wide-text { grid-template-columns: 1fr; gap: 36px; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
  .site-footer .wrap { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 900px) {
  html { scroll-padding-top: 72px; }
  .site-header .wrap { height: 72px; }
  .brand img { height: 38px; }
  .brand .name { font-size: 16px; }
  .burger { display: inline-flex; }
  .header-cta { display: none; }
  .nav {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 72px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--black);
    border-bottom: 1px solid #27272A;
    padding: 8px 24px 20px;
  }
  .nav.open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav .btn { display: inline-flex; margin-top: 14px; border-bottom: 0; }
}

@media (max-width: 760px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .btn-row .btn { width: 100%; }
  .form { padding: 22px; }
  .foot-brand { flex-direction: column; align-items: flex-start; gap: 16px; }
  .foot-links { flex-wrap: wrap; gap: 20px 36px; }
  .foot-links ul { min-width: 130px; }
}