/* ==========================================================================
   AKVA Water — štýly. Všetky premenné na jednom mieste (:root).
   ========================================================================== */

:root {
  /* Farby */
  --color-ink: #1c2b33;
  --color-ink-soft: #3a4b54;
  --color-brand: #365b70;
  --color-brand-dark: #263b46;
  --color-accent: #4fa7a0;
  --color-bg: #ffffff;
  --color-bg-soft: #f4f6f5;
  --color-bg-paper: #f7f7f5;
  --color-border: #e2e6e5;
  --color-white: #ffffff;

  /* Typografia */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Segoe UI", var(--font-sans);
  --step-0: clamp(1rem, 0.95rem + 0.2vw, 1.125rem);
  --step-1: clamp(1.2rem, 1.1rem + 0.4vw, 1.4rem);
  --step-2: clamp(1.5rem, 1.3rem + 0.8vw, 1.9rem);
  --step-3: clamp(1.9rem, 1.5rem + 1.6vw, 2.6rem);
  --step-4: clamp(2.4rem, 1.8rem + 2.4vw, 3.4rem);

  /* Rozmery */
  --content-max: 1180px;
  --radius: 10px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.75rem;
  --space-4: 3rem;
  --space-5: 5rem;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-bg);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-brand); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { padding-left: 1.2em; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-brand-dark);
  line-height: 1.2;
  margin: 0 0 var(--space-2);
  font-weight: 600;
}
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); }
p { margin: 0 0 var(--space-2); }

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-brand);
  color: #fff;
  padding: 0.75em 1em;
  z-index: 200;
}
.skip-link:focus { left: 0; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: saturate(180%) blur(6px);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}
.site-logo { display: flex; align-items: center; gap: 0.6rem; }
.site-logo img { height: 58px; width: auto; }
@media (min-width: 900px) { .site-logo img { height: 72px; } }

.main-nav { display: none; }
.main-nav ul { list-style: none; display: flex; gap: var(--space-3); margin: 0; padding: 0; }
.main-nav a {
  color: var(--color-ink);
  font-size: 0.95rem;
  font-weight: 500;
  white-space: nowrap;
}
.main-nav a:hover { color: var(--color-brand); text-decoration: none; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-white);
  cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; }

.mobile-nav {
  display: none;
  border-top: 1px solid var(--color-border);
  background: var(--color-white);
}
.mobile-nav.is-open { display: block; }
.mobile-nav ul { list-style: none; margin: 0; padding: var(--space-2) var(--space-3); }
.mobile-nav li + li { border-top: 1px solid var(--color-border); }
.mobile-nav a { display: block; padding: 0.9rem 0; color: var(--color-ink); font-weight: 500; }

@media (min-width: 900px) {
  .main-nav { display: block; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none !important; }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.85em 1.6em;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--color-brand); color: #fff; }
.btn-primary:hover { background: var(--color-brand-dark); }
.btn-secondary { background: transparent; color: var(--color-brand-dark); border-color: var(--color-brand-dark); }
.btn-secondary:hover { background: var(--color-brand-dark); color: #fff; }
.btn-on-dark { border-color: #fff; color: #fff; }
.btn-on-dark:hover { background: #fff; color: var(--color-brand-dark); }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* Hero */
.hero {
  position: relative;
  color: #fff;
  min-height: 78vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero picture, .hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(28,43,51,0.55) 0%, rgba(28,43,51,0.7) 100%);
  z-index: 1;
}
.hero .container { position: relative; z-index: 2; max-width: 800px; }
.hero h1 { color: #fff; font-size: var(--step-4); margin-bottom: var(--space-2); }
.hero p.lead { font-size: var(--step-1); margin-bottom: var(--space-3); color: #f0f3f2; }

/* Section spacing */
.section { padding: var(--space-5) 0; }
.section-soft { background: var(--color-bg-soft); }
.section-brand { background: var(--color-brand-dark); color: #fff; }
.section-brand h2, .section-brand h3 { color: #fff; }
.section-header { max-width: 760px; margin: 0 auto var(--space-4); text-align: center; }
.section-header h2 { margin-bottom: var(--space-1); }
.section-header p { color: var(--color-ink-soft); font-size: var(--step-1); }
.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}

/* Grid helpers */
.grid { display: grid; gap: var(--space-3); }
.grid-3 { grid-template-columns: repeat(1, 1fr); }
.grid-4 { grid-template-columns: repeat(1, 1fr); }
@media (min-width: 700px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Cards */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
}
.card h3 { font-size: 1.3rem; margin-bottom: 0.5rem; }
.card p { color: var(--color-ink-soft); margin-bottom: 0; }
.num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: var(--color-bg-soft);
  color: var(--color-brand);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

/* Pre koho — dlaždice */
.tiles { display: grid; gap: var(--space-3); grid-template-columns: 1fr; }
@media (min-width: 780px) { .tiles { grid-template-columns: repeat(3, 1fr); } }
.tile {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  color: #fff;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
}
.tile img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0;
}
.tile::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(28,43,51,0) 30%, rgba(28,43,51,0.85) 100%);
  z-index: 1;
}
.tile-content { position: relative; z-index: 2; padding: var(--space-3); }
.tile-content h3 { color: #fff; margin-bottom: 0.35rem; }
.tile-content p { color: #e7ece9; font-size: 0.95rem; margin-bottom: 0.75rem; }
.tile-content a { color: #fff; font-weight: 600; }

/* Steps (ako to funguje) */
.steps { display: grid; gap: var(--space-3); grid-template-columns: 1fr; counter-reset: step; }
@media (min-width: 780px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step { text-align: left; background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-3); }
.step .num { }

/* Rozbor vody / dvojstĺpec */
.split {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
  align-items: center;
}
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; } }
.split img { border-radius: var(--radius); }
.split.reverse .split-media { order: 2; }

/* Referencie */
.testimonial {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
}
.testimonial p.quote { font-size: 1.15rem; font-style: italic; color: var(--color-ink); }
.testimonial .who { color: var(--color-ink-soft); font-size: 0.9rem; }

/* Ecológia list */
.eco-list { list-style: none; padding: 0; margin: 0 0 var(--space-3); display: grid; gap: 0.6rem; }
.eco-list li { display: flex; align-items: flex-start; gap: 0.6rem; }
.eco-list li::before {
  content: "";
  flex: none;
  width: 0.55rem; height: 0.55rem;
  margin-top: 0.55rem;
  border-radius: 50%;
  background: var(--color-accent);
}

/* Kontaktný formulár */
.contact-wrap {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 900px) { .contact-wrap { grid-template-columns: 1fr 1.3fr; } }
.contact-info h2 { color: #fff; }
.contact-info p { color: #dbe4e1; }
.contact-info a { color: #fff; font-weight: 600; }
.contact-info .item { margin-bottom: var(--space-2); }

form.contact-form {
  background: var(--color-white);
  color: var(--color-ink);
  border-radius: var(--radius);
  padding: var(--space-3);
  display: grid;
  gap: var(--space-2);
}
.form-row { display: grid; gap: var(--space-2); grid-template-columns: 1fr; }
@media (min-width: 600px) { .form-row.cols-2 { grid-template-columns: 1fr 1fr; } }
label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 0.3rem; }
input, select, textarea {
  width: 100%;
  padding: 0.7em 0.8em;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  background: #fff;
  color: var(--color-ink);
}
textarea { min-height: 110px; resize: vertical; }
.field-hint { font-size: 0.8rem; color: var(--color-ink-soft); margin-top: 0.75rem; }
/* honeypot – skryté pre ľudí, viditeľné pre boty ktoré ignorujú CSS */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Footer */
.site-footer {
  background: var(--color-brand-dark);
  color: #cfdbd8;
  padding: var(--space-4) 0 var(--space-2);
}
.footer-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-3);
}
@media (min-width: 780px) { .footer-grid { grid-template-columns: 1.6fr 1fr 1.3fr 1fr; } }
.site-footer a { color: #fff; }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 0.6rem; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.4rem; }
.social-links { display: flex; gap: 0.7rem; margin-top: 0.8rem; }
.social-links a { width: 42px; height: 42px; border: 1px solid rgba(255,255,255,0.35); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; transition: background 0.15s; }
.social-links a:hover { background: rgba(255,255,255,0.15); text-decoration: none; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: var(--space-2);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
}

/* Utility */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Sub-page content (single.html) */
.page-hero {
  background: var(--color-brand-dark);
  color: #fff;
  padding: var(--space-5) 0 var(--space-4);
}
.page-hero h1 { color: #fff; margin-bottom: var(--space-1); }
.page-hero p { color: #d8e2df; font-size: var(--step-1); max-width: 760px; }
.prose h2 { margin-top: var(--space-4); }
.prose ul { color: var(--color-ink-soft); }

/* Confirmation page */
.confirm { text-align: center; padding: var(--space-5) 0; }

/* Zoznam „v cene" a ekologické prvky: jednotné karty */
.included, .feature-grid { display: grid; gap: 0.75rem; list-style: none; padding: 0; margin: 0; grid-template-columns: 1fr; }
@media (min-width: 700px) { .included, .feature-grid { grid-template-columns: 1fr 1fr; } }
.included li, .feature { display: flex; gap: 0.9rem; align-items: center; padding: 0.9rem 1.1rem; background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius); }
.included li::before { content: "✓"; flex: none; width: 2rem; height: 2rem; border-radius: 50%; background: var(--color-bg-soft); color: var(--color-accent); font-weight: 700; display: flex; align-items: center; justify-content: center; }
.feature img { flex: none; width: 48px; height: 48px; object-fit: contain; }
.feature-grid { margin-bottom: var(--space-3); }
.note { font-size: 0.9rem; color: var(--color-ink-soft); margin-top: var(--space-2); }

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { border: 1px solid var(--color-border); border-radius: var(--radius); background: #fff; margin-bottom: 0.75rem; }
.faq summary { cursor: pointer; padding: 1rem 1.25rem; font-weight: 600; color: var(--color-brand-dark); }
.faq details p { padding: 0 1.25rem 1rem; margin: 0; color: var(--color-ink-soft); }

/* Obrázky, diagramy a médiá v obsahu */
.prose { max-width: none; }
.prose p, .prose li { color: var(--color-ink-soft); }
.prose a { text-decoration: underline; }
.figure { margin: var(--space-3) 0; }
.figure img, .figure video { border-radius: var(--radius); width: 100%; height: auto; }
.figure.narrow { max-width: 340px; }
.figure figcaption { font-size: 0.85rem; color: var(--color-ink-soft); margin-top: 0.4rem; }
.figure.video video { width: 100%; height: auto; background: transparent; }
.media-row { display: grid; gap: var(--space-3); grid-template-columns: 1fr; margin: var(--space-3) 0; }
@media (min-width: 700px) { .media-row { grid-template-columns: repeat(var(--cols, 2), 1fr); } }
.media-row .figure { margin: 0; }
.media-row img { aspect-ratio: 4/3; object-fit: cover; }

.cycle { list-style: none; padding: 0; margin: var(--space-3) 0; display: grid; gap: var(--space-2); grid-template-columns: repeat(2, 1fr); counter-reset: c; }
@media (min-width: 700px) { .cycle { grid-template-columns: repeat(3, 1fr); } }
.cycle li { counter-increment: c; background: var(--color-bg-soft); border-radius: var(--radius); padding: var(--space-2); text-align: center; position: relative; }
.cycle li::before { content: counter(c); position: absolute; top: 0.5rem; left: 0.6rem; width: 1.6rem; height: 1.6rem; border-radius: 50%; background: var(--color-brand); color: #fff; font-size: 0.8rem; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.cycle img { height: 84px; width: auto; margin: 0.4rem auto 0.6rem; object-fit: contain; }
.cycle span { display: block; font-weight: 600; color: var(--color-brand-dark); }

.system { display: grid; gap: var(--space-3); grid-template-columns: 1fr; margin: var(--space-3) 0; }
@media (min-width: 800px) { .system { grid-template-columns: 0.7fr 1.4fr 1.4fr; } }
.system-block { background: var(--color-bg-soft); border-radius: var(--radius); padding: var(--space-3); text-align: center; }
.system-block > img { height: 150px; width: auto; margin: 0 auto var(--space-2); }
.system-block p { margin: 0; font-size: 0.95rem; }
.system-devices { display: flex; gap: var(--space-2); justify-content: center; align-items: flex-end; margin-bottom: var(--space-2); }
.system-devices figure { margin: 0; flex: 1; }
.system-devices img { height: 90px; width: auto; margin: 0 auto 0.4rem; object-fit: contain; }
.system-devices figcaption { font-size: 0.8rem; line-height: 1.25; }

.usecases { list-style: none; padding: 0; margin: var(--space-3) 0; display: grid; gap: var(--space-2); grid-template-columns: repeat(2, 1fr); }
@media (min-width: 800px) { .usecases { grid-template-columns: repeat(3, 1fr); } }
.usecases li { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 0.6rem; padding: var(--space-2); border: 1px solid var(--color-border); border-radius: var(--radius); }
.usecases span { color: var(--color-brand-dark); font-weight: 500; font-size: 0.95rem; }

.bottles { display: flex; gap: var(--space-2); align-items: flex-end; justify-content: center; flex-wrap: wrap; margin: var(--space-3) 0; padding: var(--space-3); background: var(--color-bg-soft); border-radius: var(--radius); }
.bottles img { height: 150px; width: auto; }
.badges { list-style: none; padding: 0; margin: 0 auto var(--space-4); display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: center; }
.badges img { width: 110px; height: auto; }

.table-wrap { overflow-x: auto; margin: var(--space-3) 0; }
table.models { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
table.models th, table.models td { border: 1px solid var(--color-border); padding: 0.6rem 0.8rem; text-align: left; }
table.models thead th { background: var(--color-brand-dark); color: #fff; }
table.models tbody th { background: var(--color-bg-soft); font-weight: 600; }

.callout { background: var(--color-bg-soft); border-left: 4px solid var(--color-accent); padding: var(--space-2) var(--space-3); border-radius: 0 var(--radius) var(--radius) 0; margin: var(--space-3) 0; }
.callout p:last-child { margin-bottom: 0; }
.related { margin-top: var(--space-4); padding-top: var(--space-3); border-top: 1px solid var(--color-border); }
.related ul { padding-left: 1.2em; }

/* Skryté ponukové stránky */
.offer-slides { display: grid; gap: var(--space-3); margin: 0 auto; }
.offer-slides img { width: 100%; height: auto; border: 1px solid var(--color-border); border-radius: var(--radius); }
.pillars { display: grid; gap: var(--space-3); grid-template-columns: 1fr; margin-top: var(--space-4); }
@media (min-width: 800px) { .pillars { grid-template-columns: repeat(3, 1fr); } }
.pillar { border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-3); }
.pillar img { height: 90px; width: auto; margin-bottom: var(--space-2); }
.pillar ul { padding-left: 1.1em; margin: 0; color: var(--color-ink-soft); }
.opt { font-weight: 400; color: var(--color-ink-soft); }

.prose li::marker { color: var(--color-accent); }
.split .feature-grid, .split .included { grid-template-columns: 1fr; }
.step h3 { font-size: 1.25rem; }

/* Stránka Výhody */
.benefit-intro { font-size: var(--step-1); color: var(--color-ink-soft); margin: 0 0 var(--space-4); }
.benefit-grid { display: grid; gap: var(--space-3); grid-template-columns: 1fr; }
@media (min-width: 760px) { .benefit-grid { grid-template-columns: 1fr 1fr; } }
.benefit { display: flex; gap: 1.25rem; align-items: flex-start; padding: var(--space-3); background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius); }
.benefit-icon { flex: none; width: 72px; height: 72px; border-radius: 50%; background: var(--color-bg-soft); display: flex; align-items: center; justify-content: center; }
.benefit-icon img { width: 44px; height: 44px; object-fit: contain; }
.benefit h2 { font-size: 1.3rem; margin: 0 0 0.4rem; }
.benefit p { margin: 0; color: var(--color-ink-soft); }
.audience-grid { display: grid; gap: var(--space-2); grid-template-columns: 1fr; }
@media (min-width: 760px) { .audience-grid { grid-template-columns: repeat(3, 1fr); } }
.audience { display: flex; gap: 1rem; align-items: center; padding: var(--space-2) var(--space-3); background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius); color: var(--color-ink); }
.audience:hover { text-decoration: none; border-color: var(--color-accent); }
.audience strong { display: block; color: var(--color-brand-dark); }
.audience span { font-size: 0.9rem; color: var(--color-ink-soft); }

/* Hero podstránok s obrázkom na pozadí */
.page-hero.has-image { position: relative; overflow: hidden; padding: 6.5rem 0 5.5rem; }
.page-hero.has-image picture, .page-hero.has-image img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.page-hero.has-image::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(28,43,51,0.88) 0%, rgba(28,43,51,0.7) 60%, rgba(28,43,51,0.5) 100%); z-index: 1; }
.page-hero.has-image .container { position: relative; z-index: 2; }
.benefit-icon svg { width: 34px; height: 34px; color: var(--color-brand); }
.audience { flex-direction: column; align-items: stretch; padding: 0; overflow: hidden; gap: 0; }
.audience picture, .audience img { display: block; width: 100%; height: 170px; object-fit: cover; }
.audience-body { padding: var(--space-2) var(--space-3) var(--space-3); }
.audience-body span { display: block; margin-top: 0.2rem; }
.split-media.landscape img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.feature-icon { flex: none; width: 52px; height: 52px; border-radius: 50%; background: var(--color-bg-soft); display: flex; align-items: center; justify-content: center; }
.feature-icon svg { width: 28px; height: 28px; color: var(--color-brand); }
.section-soft .feature-icon { background: var(--color-bg-soft); }
.badges { margin-bottom: 0; }

/* Diagram systému (SVG) */
.system-diagram { margin: var(--space-3) 0; padding: var(--space-3); background: var(--color-bg-soft); border-radius: var(--radius); }
.system-diagram svg { display: block; width: 100%; max-width: 820px; height: auto; margin: 0 auto; }
.system-diagram .d-line { stroke: var(--color-brand-dark); stroke-width: 2; fill: none; }
.system-diagram .d-thin { stroke-width: 1.2; }
.system-diagram .d-fill { fill: #dfe6e5; }
.system-diagram .d-wall { fill: #d7dedd; }
.system-diagram .d-metal { fill: #c9d2d2; }
.system-diagram .d-tray { fill: #b9c4c4; }
.system-diagram .d-glass { fill: rgba(255,255,255,0.85); }
.system-diagram .d-gray { fill: #aeb8b8; }
.system-diagram .d-dark { fill: #34464f; }
.system-diagram .d-grill path { stroke: #7f929b; stroke-width: 3; stroke-linecap: round; }
.system-diagram .d-led { fill: #4fd18b; }
.system-diagram .d-txt { fill: #fff; font: 700 18px var(--font-sans); letter-spacing: 2px; }
.system-diagram .d-water { fill: none; stroke: #5aa9d6; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.system-diagram .d-co2 { fill: none; stroke: #7c8a8a; stroke-width: 4; stroke-linecap: round; stroke-dasharray: 2 9; }
.system-diagram .d-num circle { fill: var(--color-brand); }
.system-diagram .d-num text { fill: #fff; font: 700 16px var(--font-sans); text-anchor: middle; }
.system-diagram .d-num .d-numdark { fill: #fff; stroke: var(--color-brand); stroke-width: 2; }
.system-diagram .d-num .d-numdark-t { fill: var(--color-brand); }
.system-legend { list-style: none; padding: 0; margin: var(--space-3) 0 var(--space-2); display: grid; gap: 0.6rem 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 700px) { .system-legend { grid-template-columns: 1fr 1fr; } }
.system-legend li { display: flex; gap: 0.7rem; align-items: center; }
.system-legend b { flex: none; width: 1.7rem; height: 1.7rem; border-radius: 50%; background: var(--color-brand); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; }
.system-note { margin: var(--space-2) 0 0; }

/* Jednotný zoznam s odškrtnutím: text v <div>, položky v jednom štýle */
.included li > div { flex: 1; }

/* Kolobeh vody v kruhu na väčších displejoch */
@media (min-width: 760px) {
  .cycle { display: block; position: relative; width: 600px; height: 600px; max-width: 100%; margin: 4.5rem auto; padding: 0; }
  .cycle::before { content: ""; position: absolute; inset: 92px; border: 3px dashed var(--color-border); border-radius: 50%; }
  .cycle::after { content: ""; position: absolute; left: 50%; top: 50%; width: 170px; height: 170px; transform: translate(-50%, -50%); background: url(/images/logo-circle.webp) center/contain no-repeat; }
  .cycle li { position: absolute; left: 50%; top: 50%; width: 150px; margin: -60px 0 0 -75px; transform: rotate(var(--a)) translateY(-230px) rotate(calc(-1 * var(--a))); background: var(--color-white); border: 1px solid var(--color-border); box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
  .cycle li:nth-child(1) { --a: 0deg; } .cycle li:nth-child(2) { --a: 60deg; } .cycle li:nth-child(3) { --a: 120deg; }
  .cycle li:nth-child(4) { --a: 180deg; } .cycle li:nth-child(5) { --a: 240deg; } .cycle li:nth-child(6) { --a: 300deg; }
}

/* Fľaše vždy v jednom rade, na stred */
.bottles { flex-wrap: nowrap; justify-content: space-evenly; align-items: flex-end; gap: 0.5rem; }
.bottles img { height: clamp(70px, 17vw, 170px); width: auto; flex: 0 1 auto; min-width: 0; object-fit: contain; }
.tm-note { flex-basis: 100%; font-size: 0.78rem; opacity: 0.75; }

@media (min-width: 800px) { .usecases { grid-template-columns: repeat(4, 1fr); } }
.usecases li { padding: var(--space-2) 0.5rem var(--space-3); background: var(--color-white); }
.usecases .ill { display: block; width: 100%; }
.usecases .ill svg { display: block; width: 100%; max-width: 175px; height: auto; margin: 0 auto; }
.usecases span:last-child { font-size: 1rem; }
.benefit h3 { font-size: 1.2rem; margin: 0 0 0.4rem; }

/* Cookie banner */
.cookie-banner { position: fixed; left: 0; right: 0; bottom: 0; z-index: 300; background: #fff; border-top: 1px solid var(--color-border); box-shadow: 0 -6px 24px rgba(0,0,0,0.12); }
.cookie-banner[hidden] { display: none; }
.cookie-inner { display: flex; gap: var(--space-3); align-items: center; padding-top: var(--space-2); padding-bottom: var(--space-2); flex-wrap: wrap; }
.cookie-text { flex: 1 1 420px; font-size: 0.9rem; }
.cookie-text p { margin: 0.25rem 0 0; color: var(--color-ink-soft); }
.cookie-actions { display: flex; gap: var(--space-1); flex: none; }
.cookie-actions .btn { padding: 0.65em 1.4em; }
.split-media.video-square video { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: var(--radius); display: block; background: #eee; }
.figure.video video { display: block; }

/* O nás */
.stats { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-3); grid-template-columns: repeat(2, 1fr); text-align: center; }
@media (min-width: 800px) { .stats { grid-template-columns: repeat(4, 1fr); } }
.stats strong { display: block; font-family: var(--font-display); font-size: var(--step-3); color: var(--color-brand-dark); line-height: 1.1; }
.stats span { display: block; margin-top: 0.3rem; color: var(--color-ink-soft); font-size: 0.95rem; }
.band { position: relative; overflow: hidden; color: #fff; padding: var(--space-5) 0; }
.band picture, .band img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.band::before { content: ""; position: absolute; inset: 0; background: rgba(28,43,51,0.78); z-index: 1; }
.band .container { position: relative; z-index: 2; }
.band h2 { color: #fff; }
.band p { color: #e4ecea; }
.vm-grid { display: grid; gap: var(--space-4); grid-template-columns: 1fr; }
@media (min-width: 800px) { .vm-grid { grid-template-columns: 1fr 1fr; } }
.vm-grid h2 { font-size: var(--step-2); }
.band-cta { padding: 6rem 0; }
.side-card { display: flex; gap: var(--space-3); align-items: center; padding: var(--space-3); background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius); flex-wrap: wrap; }
.side-card > div:nth-child(2) { flex: 1 1 320px; }
.side-card h3 { font-size: 1.25rem; margin-bottom: 0.3rem; }
.side-card p { margin: 0; color: var(--color-ink-soft); }
.side-card-icon { flex: none; width: 72px; height: 72px; border-radius: 50%; background: var(--color-bg-soft); display: flex; align-items: center; justify-content: center; }
.side-card-icon svg { width: 34px; height: 34px; color: var(--color-brand); }

.tm-note { font-size: 0.85rem; color: var(--color-ink-soft); }

/* Video a fotka vedľa seba */
@media (min-width: 760px) {
  .media-row.video-pair { grid-template-columns: 340px 585px; justify-content: center; align-items: start; }
}
.media-row.video-pair .figure img { aspect-ratio: 1/1; object-fit: cover; }
.media-row.video-pair .figure.video { max-width: none; }

/* Karty vľavo pod sebou, video vpravo */
@media (min-width: 900px) {
  .media-row.cards-video { grid-template-columns: 1fr 340px; align-items: start; gap: var(--space-4); }
}
.media-row.cards-video .benefit-grid { grid-template-columns: 1fr; }
.media-row.cards-video .figure.video { max-width: none; }
@media (min-width: 900px) {
  .media-row.cards-video { align-items: stretch; }
  .media-row.cards-video .benefit-grid { height: 100%; grid-auto-rows: 1fr; }
}
.media-row.cards-video .benefit { align-items: center; }

/* Galéria 2x2 a lightbox */
.gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.gallery-item { display: block; aspect-ratio: 1/1; overflow: hidden; border-radius: var(--radius); cursor: zoom-in; background: var(--color-bg-soft); }
.gallery-item picture, .gallery-item img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: var(--pos, 50% 50%); transition: transform 0.25s ease; }
.gallery-item:hover img { transform: scale(1.04); }
.gallery-cap { font-size: 0.85rem; color: var(--color-ink-soft); margin: 0.5rem 0 0; }
.media-row.video-pair .gallery-item img { aspect-ratio: auto; }
dialog.lightbox { border: 0; padding: 0; background: transparent; max-width: 96vw; max-height: 96vh; overflow: visible; color: #fff; }
dialog.lightbox::backdrop { background: rgba(10,20,25,0.88); }
dialog.lightbox img { display: block; max-width: 92vw; max-height: 80vh; margin: 0 auto; border-radius: 6px; object-fit: contain; }
.lb-cap { text-align: center; margin: 0.75rem auto 0; max-width: 70ch; font-size: 0.9rem; color: #dbe5e2; }
.lb-close, .lb-nav { position: fixed; background: rgba(255,255,255,0.16); color: #fff; border: 0; border-radius: 50%; width: 44px; height: 44px; font-size: 28px; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.lb-close:hover, .lb-nav:hover { background: rgba(255,255,255,0.3); }
.lb-close { top: 16px; right: 16px; }
.lb-nav { top: 50%; transform: translateY(-50%); }
.lb-prev { left: 16px; } .lb-next { right: 16px; }

@media (min-width: 900px) {
  .media-row.cards-video.start { align-items: start; }
  .media-row.cards-video.start .benefit-grid { height: auto; grid-auto-rows: auto; }
  .media-row.cards-video.start .figure.video { position: sticky; top: 110px; }
}

/* Fotka a video v rovnakom pomere */
.media-row.same-ratio .figure.video video { aspect-ratio: 4/3; height: auto; object-fit: cover; border-radius: var(--radius); }
.benefit-grid + p, .usecases + p { margin-top: var(--space-4); }
.section-cont { padding: 0; }
.section-cont .related { margin-bottom: var(--space-4); }
.compact .section { padding: 3.25rem 0; }
.compact .section-brand { padding: var(--space-5) 0; }

.form-status { margin: 0; padding: 0.75rem 1rem; border-radius: 6px; font-size: 0.95rem; }
.form-status.is-error { background: #fdeceb; color: #8a1f17; border: 1px solid #f3b8b3; }
.form-success { text-align: center; padding: var(--space-3) 0; }
.form-success h3 { margin-bottom: 0.4rem; }
.form-success p { margin: 0; color: var(--color-ink-soft); }
.section-soft .bottles, .section-soft .system-diagram { background: var(--color-white); }

/* Nepárny posledný box na celú šírku, aby v mriežke nezostala diera */
@media (min-width: 760px) { .benefit-grid > .benefit:last-child:nth-child(odd) { grid-column: 1 / -1; } }

/* Skryté ponuky: slideshow (varianta A) */
.deck-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; justify-content: center; margin: 0 auto var(--space-3); }
.deck-tabs button { font: inherit; font-weight: 600; padding: 0.6rem 1.1rem; border-radius: 999px; border: 1px solid var(--color-border); background: var(--color-white); color: var(--color-ink); cursor: pointer; }
.deck-tabs button span { font-weight: 400; font-size: 0.85rem; color: var(--color-ink-soft); margin-left: 0.35rem; }
.deck-tabs button.is-active { background: var(--color-brand); border-color: var(--color-brand); color: #fff; }
.deck-tabs button.is-active span { color: #dbe5e2; }
.deck { max-width: 1040px; margin: 0 auto; }
.deck[hidden] { display: none; }
.deck-stage { position: relative; background: var(--color-bg-soft); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
.deck-slide { margin: 0; }
.deck-slide img { display: block; width: 100%; height: auto; }
.deck.is-ready .deck-stage { aspect-ratio: 16 / 9; }
.deck.is-ready .deck-slide { position: absolute; inset: 0; display: none; }
.deck.is-ready .deck-slide.is-active { display: block; }
.deck-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; border-radius: 50%; border: 0; background: rgba(38,59,70,0.72); color: #fff; font-size: 30px; line-height: 1; cursor: pointer; display: none; align-items: center; justify-content: center; }
.deck.is-ready .deck-nav { display: flex; }
.deck-nav:hover { background: rgba(38,59,70,0.95); }
.deck-prev { left: 12px; } .deck-next { right: 12px; }
.deck-bar { display: none; align-items: center; gap: 1rem; margin: 0.9rem 0 0.6rem; font-size: 0.95rem; }
.deck.is-ready .deck-bar { display: flex; }
.deck-count { font-weight: 700; color: var(--color-brand-dark); min-width: 4.5rem; }
.deck-title { flex: 1; color: var(--color-ink-soft); }
.deck-fs { font: inherit; font-size: 0.9rem; padding: 0.4rem 0.8rem; border-radius: 999px; border: 1px solid var(--color-border); background: var(--color-white); cursor: pointer; color: var(--color-ink); }
.deck-fs:hover { border-color: var(--color-brand); }
.deck-dots { display: none; flex-wrap: wrap; gap: 6px; }
.deck.is-ready .deck-dots { display: flex; }
.deck-dots button { width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--color-border); background: var(--color-white); font: inherit; font-size: 0.85rem; cursor: pointer; color: var(--color-ink); }
.deck-dots button:hover { border-color: var(--color-brand); }
.deck-dots button.is-active { background: var(--color-brand); border-color: var(--color-brand); color: #fff; }
.deck-hint { text-align: center; font-size: 0.85rem; color: var(--color-ink-soft); margin: var(--space-3) 0 0; }
.deck-stage:fullscreen { background: #0d1a20; border: 0; border-radius: 0; display: flex; align-items: center; justify-content: center; }
.deck-stage:fullscreen .deck-slide { position: absolute; inset: 0; }
.deck-stage:fullscreen .deck-slide img { width: 100%; height: 100%; object-fit: contain; }
.deck:not(.is-ready) .deck-stage { display: grid; gap: var(--space-3); border: 0; background: none; }
.deck:not(.is-ready) .deck-slide img { border: 1px solid var(--color-border); border-radius: var(--radius); }
@media (max-width: 640px) {
  .deck-nav { width: 40px; height: 40px; font-size: 26px; }
  .deck-prev { left: 6px; } .deck-next { right: 6px; }
  .deck-title { display: none; }
  .deck-fs { margin-left: auto; }
}

/* Stránka 404 */
.e404 { text-align: center; }
.e404-art { display: block; width: 100%; max-width: 520px; height: auto; margin: 0 auto var(--space-3); }
.e404-bg { fill: var(--color-bg-soft); }
.e404-num { fill: var(--color-border); font: 800 92px/1 var(--font-sans, system-ui, sans-serif); letter-spacing: 6px; }
.e404-art .pipe { fill: var(--color-brand); }
.e404-art .pipe-band { fill: var(--color-brand-dark); }
.e404-art .crack { fill: none; stroke: var(--color-bg-soft); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.e404-art .stream { fill: none; stroke: var(--color-accent); stroke-width: 12; stroke-linecap: round; }
.e404-art .puddle { fill: var(--color-accent); opacity: 0.35; }
.e404-art .puddle-ring { fill: none; stroke: var(--color-accent); stroke-width: 2; opacity: 0.6; }
.e404-art .drop { fill: var(--color-accent); }
@media (prefers-reduced-motion: no-preference) {
  .e404-art .drop { animation: e404-drip 1.8s ease-in infinite; }
  .e404-art .d2 { animation-delay: 0.5s; } .e404-art .d3 { animation-delay: 1s; } .e404-art .d4 { animation-delay: 1.4s; }
  .e404-art .puddle-ring { transform-origin: 262px 292px; animation: e404-ring 1.8s ease-out infinite; }
}
@keyframes e404-drip { 0% { transform: translateY(-6px); opacity: 0; } 15% { opacity: 1; } 100% { transform: translateY(70px); opacity: 0; } }
@keyframes e404-ring { 0% { transform: scale(0.6); opacity: 0.8; } 100% { transform: scale(1.5); opacity: 0; } }
.e404-text { color: var(--color-ink-soft); margin: 0 auto var(--space-3); }
.e404-btns { justify-content: center; }

/* Tlačidlo spustenia videa, ak prehliadač zablokoval automatické prehrávanie (napr. úsporný režim) */
.video-play { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 64px; height: 64px; border-radius: 50%; border: 0; background: rgba(38,59,70,0.78); color: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.video-play svg { width: 28px; height: 28px; fill: currentColor; margin-left: 3px; }
.video-play:hover { background: rgba(38,59,70,0.95); }