/* =========================================================
   ELREVMONT — Design system v2
   Tmavě modré pozadí + azurový akcent, mono pro citace
   norem ČSN. Devět hlavních sekcí webu (viz index.html).
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --c-bg: #0A1628;
  --c-bg-soft: #0F2038;
  --c-bg-light: #F5F7FA;
  --c-accent: #2E9BF0;
  --c-accent-dark: #1C7DD1;
  --c-steel: #64748B;
  --c-safe: #1E8E5A;
  --c-text-light: #F5F7FA;
  --c-text-dark: #101828;
  --c-hero-highlight: #E4463A;
  --c-hero-bg: #0d1c33;
  --c-hero-bg-mid: #0a1730;
  --c-border: rgba(245, 247, 250, 0.12);
  --c-border-dark: rgba(16, 24, 40, 0.10);
  --size-nav-logo: 16px;
  --size-hero-eyebrow: 15px;

  --f-display: 'Space Grotesk', sans-serif;
  --f-body: 'Inter', sans-serif;
  --f-mono: 'JetBrains Mono', monospace;

  --container: 1180px;
  --radius: 10px;
  --radius-sm: 6px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--f-body);
  background: var(--c-bg-light);
  color: var(--c-text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

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

.eyebrow {
  font-family: var(--f-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  background: var(--c-accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #fff;
}
/* Na tmavém/modrém pozadí sekce (Služby, Servis, Reference...) by
   modrá pilulka splývala s pozadím — tam má štítek bílé pozadí
   s modrým textem, aby zůstal stejně výrazný a čitelný. */
.eyebrow.on-dark {
  background: #fff;
  color: var(--c-accent-dark);
}
.eyebrow.on-dark::before { background: var(--c-accent-dark); }

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.section-title {
  font-size: clamp(28px, 3.6vw, 42px);
  max-width: 640px;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--c-steel);
  max-width: 560px;
  font-size: 16.5px;
}

.section-head {
  margin-bottom: 56px;
}

section { position: relative; }
.py { padding: 100px 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: 0.01em;
  transition: all 0.25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; flex-shrink: 0; }
.btn-primary {
  background: var(--c-accent);
  color: #ffffff;
}
.btn-primary:hover { background: var(--c-accent-dark); transform: translateY(-1px); }
.btn-outline {
  border: 1px solid var(--c-border);
  color: var(--c-text-light);
}
.btn-outline:hover { border-color: var(--c-accent); color: var(--c-accent); }
.btn-outline-dark {
  border: 1px solid var(--c-border-dark);
  color: var(--c-text-dark);
}
.btn-outline-dark:hover { border-color: var(--c-accent-dark); background: rgba(46,155,240,0.08); }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-border-dark);
  transition: background 0.3s var(--ease);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--c-text-light);
  display: flex;
  align-items: center;
  gap: 9px;
  text-transform: uppercase;
}
/* Logo v horní navigaci má nastavitelnou velikost z adminu
   (záložka Vzhled) a tmavý text (navbar je teď světlý) — logo ve
   footeru zůstává bílé na pevné velikosti (footer je tmavý). */
.nav-logo-scalable {
  font-size: var(--size-nav-logo);
  color: var(--c-text-dark);
}
.nav-logo-scalable .logo-icon {
  width: 1.25em;
  height: 1.25em;
}
.logo .logo-icon {
  width: 20px; height: 20px;
  color: var(--c-accent);
  display: inline-flex;
}
.logo .logo-icon svg { width: 100%; height: 100%; }
.nav-links {
  position: relative;
  display: flex;
  align-items: center;
  gap: 2px;
  border: 1px solid var(--c-border-dark);
  background: rgba(11,58,91,0.03);
  border-radius: 100px;
  padding: 5px;
}
.nav-links a {
  position: relative;
  z-index: 2;
  display: block;
  padding: 9px 18px;
  font-size: 13.5px;
  color: var(--c-text-dark);
  transition: none;
  border-radius: 100px;
}
.nav-links a:hover { color: var(--c-text-dark); }
.nav-cursor {
  position: absolute;
  z-index: 1;
  top: 5px;
  left: 0;
  height: calc(100% - 10px);
  width: 0;
  border-radius: 100px;
  background: var(--c-accent);
  opacity: 0;
  transition: left 0.35s var(--ease), width 0.35s var(--ease), opacity 0.2s var(--ease);
  pointer-events: none;
}
.nav-cta { display: none; }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  z-index: 110;
  width: 44px;
  height: 44px;
  padding: 0;
  margin: -10px -10px -10px 0;
  -webkit-tap-highlight-color: transparent;
}
.nav-toggle span {
  width: 22px; height: 2px; background: var(--c-text-dark);
  transition: all 0.3s var(--ease);
}

/* ---------- 1. Hero — animované vlnité čáry na pozadí ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: radial-gradient(60% 55% at 50% 22%, var(--c-hero-bg) 0%, var(--c-hero-bg-mid) 55%, var(--c-bg-light) 100%);
  color: var(--c-text-dark);
  padding-top: 76px;
}

/* Kontejner pro dvě vrstvy animovaných SVG "vodivých drah" na pozadí. */
.hero-paths {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  transform: translateZ(0);
}
.hero-paths svg {
  position: absolute;
  inset: -10% -5%;
  width: 110%;
  height: 120%;
  opacity: 0.42;
  will-change: transform;
}
.hero-paths svg.layer-a { animation: hero-path-drift-a 30s ease-in-out infinite; }
.hero-paths svg.layer-b { animation: hero-path-drift-b 36s ease-in-out infinite; }
.hero-paths svg.layer-c { animation: hero-path-drift-c 42s ease-in-out infinite; opacity: 0.3; }
.hero-paths svg.layer-d { animation: hero-path-drift-d 48s ease-in-out infinite; opacity: 0.3; }
.hero-paths path {
  fill: none;
  stroke: var(--c-accent);
}
/* Celá vrstva SVG se jemně posouvá — vizuálně podobné "plynutí"/
   "plavání" čar jako stroke-dashoffset animace, ale technicky jen
   levný transform (GPU compositing, žádný přepočet geometrie cesty
   na každý snímek). Každá vrstva má jinou amplitudu, směr a délku
   trvání, ať vzor nepůsobí mechanicky synchronizovaně. */
@keyframes hero-path-drift-a {
  0%   { transform: translate(0, 0); }
  50%  { transform: translate(3%, -4%); }
  100% { transform: translate(0, 0); }
}
@keyframes hero-path-drift-b {
  0%   { transform: translate(0, 0); }
  50%  { transform: translate(-4%, 3%); }
  100% { transform: translate(0, 0); }
}
@keyframes hero-path-drift-c {
  0%   { transform: translate(0, 0); }
  50%  { transform: translate(-3%, -3.5%); }
  100% { transform: translate(0, 0); }
}
@keyframes hero-path-drift-d {
  0%   { transform: translate(0, 0); }
  50%  { transform: translate(3.5%, 3%); }
  100% { transform: translate(0, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-paths svg.layer-a,
  .hero-paths svg.layer-b,
  .hero-paths svg.layer-c,
  .hero-paths svg.layer-d {
    animation: none;
  }
}

.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 90px 0 70px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-eyebrow-tag {
  font-family: var(--f-mono);
  font-size: var(--size-hero-eyebrow);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-dark);
  margin-bottom: 22px;
  display: flex;
  justify-content: center;
}

.hero-title {
  font-size: clamp(38px, 6.4vw, 72px);
  font-weight: 800;
  margin-bottom: 24px;
  max-width: 820px;
  letter-spacing: -0.02em;
}
/* Každé slovo drží pohromadě (nezalomí se uprostřed), písmena uvnitř
   se animují jednotlivě při načtení stránky. */
.hero-title .word {
  display: inline-block;
  white-space: nowrap;
}
.hero-title .letter {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px);
  animation: hero-letter-in 0.6s cubic-bezier(0.2, 0.65, 0.3, 1) forwards;
}
.hero-title .letter-highlight {
  color: var(--c-hero-highlight);
}
@keyframes hero-letter-in {
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-title .letter { animation: none; opacity: 1; transform: none; }
}

.hero-subtitle {
  font-size: 18px;
  color: var(--c-steel);
  max-width: 600px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}
.hero-btn-secondary {
  background: rgba(11,58,91,0.05);
  border: 1px solid rgba(11,58,91,0.16);
  color: var(--c-text-dark);
}
.hero-btn-secondary:hover { border-color: var(--c-accent-dark); color: var(--c-accent-dark); }

.hero-scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: var(--c-steel);
  animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

/* ---------- 2. O firmě ---------- */
.about-firm { background: var(--c-bg-light); }
.about-firm-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.about-firm-text { color: var(--c-steel); font-size: 16.5px; }
.about-firm-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--c-border-dark);
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius);
  overflow: hidden;
}
.about-firm-badge {
  background: #fff;
  padding: 28px 20px;
  text-align: center;
}
.about-firm-badge .value {
  font-family: var(--f-mono);
  font-size: 26px;
  color: var(--c-accent-dark);
  margin-bottom: 6px;
}
.about-firm-badge .label {
  font-size: 12.5px;
  color: var(--c-steel);
}

/* ---------- 3. Services ---------- */
.services { background: var(--c-bg); color: var(--c-text-light); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  overflow: hidden;
}
.service-card {
  background: var(--c-bg);
  padding: 40px 32px;
  transition: background 0.25s var(--ease);
}
.service-card:hover { background: var(--c-bg-soft); }
.service-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.16);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px;
}
.service-icon svg { width: 22px; height: 22px; }
.service-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--c-text-light);
}
.service-card p {
  font-size: 14.5px;
  color: rgba(255,255,255,0.72);
}

/* ---------- BorderGlow efekt (karty služeb, školení) ---------- */
/* Vanilla JS/CSS ekvivalent komponenty "BorderGlow": jemný barevný
   okraj a vnitřní záře karty, které se natočí a zesílí podle pozice
   kurzoru. Řízeno JS (js/border-glow.js) přes --edge-proximity
   a --cursor-angle custom properties. Efekt je navržený tak, aby
   se vešel dovnitř karty bez přesahu (grid rodičů má overflow:hidden). */
.border-glow-card {
  --edge-proximity: 0;
  --cursor-angle: 45deg;
  --edge-sensitivity: 35;
  --color-sensitivity: calc(var(--edge-sensitivity) + 20);

  position: relative;
  isolation: isolate;
}
.border-glow-card > .edge-light {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  border-radius: inherit;
  opacity: calc((var(--edge-proximity) - var(--edge-sensitivity)) / (100 - var(--edge-sensitivity)));
  transition: opacity 0.3s ease-out;
  mask-image: conic-gradient(
    from var(--cursor-angle) at center,
    black 2.5%, transparent 18%, transparent 82%, black 97.5%
  );
}
.border-glow-card > .edge-light::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow:
    inset 0 0 0 1px rgba(46, 155, 240, 0.9),
    inset 0 0 6px 0 rgba(46, 155, 240, 0.55),
    inset 0 0 18px 0 rgba(56, 189, 248, 0.35),
    inset 0 0 32px 2px rgba(46, 155, 240, 0.18);
}
.border-glow-card:not(:hover) > .edge-light {
  transition: opacity 0.6s ease-in-out;
}

/* ---------- 4. Revize ---------- */
.revize { background: var(--c-bg-light); }
.revize-norms-line {
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--c-steel);
  margin-bottom: 16px;
}
.revize-intro {
  max-width: 720px;
  color: var(--c-steel);
  font-size: 16.5px;
  margin-bottom: 56px;
}
.revize-types {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}
.revize-type {
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius);
  padding: 30px 26px;
  background: #fff;
}
.revize-type h3 {
  font-size: 17px;
  color: var(--c-accent-dark);
  margin-bottom: 12px;
}
.revize-type p {
  font-size: 14px;
  color: var(--c-steel);
}

.revize-why {
  background: var(--c-bg);
  color: var(--c-text-light);
  border-radius: var(--radius);
  padding: 44px;
  margin-bottom: 56px;
}
.revize-why h3 {
  font-size: 20px;
  margin-bottom: 20px;
  color: var(--c-accent);
}
.revize-why-list { display: grid; gap: 16px; }
.revize-why-list li {
  font-size: 14.5px;
  color: rgba(255,255,255,0.85);
  padding-left: 22px;
  position: relative;
}
.revize-why-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
}

.revize-columns {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
}
.revize-columns h4 {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--c-steel);
  margin-bottom: 20px;
}
.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  font-size: 13px;
  padding: 8px 14px;
  border: 1px solid var(--c-border-dark);
  border-radius: 100px;
  color: var(--c-text-dark);
  background: #fff;
}
.legis-list li {
  font-family: var(--f-mono);
  font-size: 13.5px;
  color: var(--c-steel);
  padding: 10px 0;
  border-bottom: 1px solid var(--c-border-dark);
}

/* ---------- 5. Montaze ---------- */
.montaze { background: var(--c-bg-soft); color: var(--c-text-light); }
.montaze-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.montaze-desc { color: rgba(255,255,255,0.75); font-size: 16px; margin-top: -8px; }
.montaze-list { display: grid; gap: 0; }
.montaze-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.16);
  font-size: 15px;
}
.montaze-list li .num {
  font-family: var(--f-mono);
  font-size: 12px;
  color: #fff;
  margin-top: 3px;
}

/* ---------- 6. Skoleni ---------- */
.skoleni { background: var(--c-bg-light); }
.skoleni-desc { color: var(--c-steel); font-size: 16.5px; max-width: 680px; margin-bottom: 48px; }
.skoleni-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.skoleni-card {
  background: var(--c-bg-soft);
  color: var(--c-text-light);
  border-radius: var(--radius);
  padding: 32px 28px;
}
.skoleni-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  margin-bottom: 20px;
}
.skoleni-icon svg { width: 24px; height: 24px; }
.skoleni-card h3 { font-size: 16px; margin-bottom: 10px; color: var(--c-text-light); }
.skoleni-card p { font-size: 13.5px; color: rgba(255,255,255,0.72); }

/* ---------- Servis ---------- */
.servis { background: var(--c-bg); color: var(--c-text-light); }
.servis-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}
.servis-text { color: rgba(255,255,255,0.75); font-size: 16.5px; }
.servis-points { display: grid; gap: 1px; background: rgba(255,255,255,0.14); border: 1px solid rgba(255,255,255,0.14); border-radius: var(--radius); overflow: hidden; }
.servis-point { background: var(--c-bg); padding: 24px 26px; }
.servis-point h3 { font-size: 15.5px; color: #fff; margin-bottom: 8px; }
.servis-point p { font-size: 14px; color: rgba(255,255,255,0.72); }

/* ---------- 7. Galerie (kategorie/alba) ---------- */
.gallery { background: var(--c-bg-light); }
.gallery-categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.gallery-cat {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
  border: none;
  display: block;
  width: 100%;
  text-align: left;
}
.gallery-cat img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.gallery-cat:hover img { transform: scale(1.06); }
.gallery-cat-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10,22,40,0.88) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  color: #fff;
}
.gallery-cat-overlay .cat-name {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 19px;
  margin-bottom: 4px;
}
.gallery-cat-overlay .cat-count {
  font-family: var(--f-mono);
  font-size: 12.5px;
  color: rgba(245,247,250,0.7);
}
.gallery-empty {
  padding: 48px;
  text-align: center;
  color: var(--c-steel);
  border: 1px dashed var(--c-border-dark);
  border-radius: var(--radius);
}

/* Gallery lightbox / album view */
.gallery-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10,22,40,0.97);
  z-index: 200;
  display: none;
  flex-direction: column;
  padding: 24px;
}
.gallery-lightbox.open { display: flex; }
.gallery-lightbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
  margin-bottom: 24px;
}
.gallery-lightbox-header h3 { font-size: 20px; }
.gallery-lightbox-close {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(245,247,250,0.2);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.gallery-lightbox-close:hover { border-color: var(--c-accent); color: var(--c-accent); }
.gallery-lightbox-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  overflow-y: auto;
  padding-bottom: 24px;
}
.gallery-lightbox-grid img {
  width: 100%; height: 220px; object-fit: cover; border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}
.gallery-lightbox-grid img:hover { transform: scale(1.02); opacity: 0.9; }

/* ---------- Photo viewer: jedna fotka přes celou obrazovku ---------- */
.photo-viewer {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(6,15,29,0.97);
  display: none;
  align-items: center;
  justify-content: center;
}
.photo-viewer.open { display: flex; }
.photo-viewer-img {
  max-width: 88vw;
  max-height: 86vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.photo-viewer-close {
  position: absolute;
  top: 24px; right: 24px;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(245,247,250,0.25);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
}
.photo-viewer-close:hover { border-color: var(--c-accent); color: var(--c-accent); }
.photo-viewer-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 1px solid rgba(245,247,250,0.25);
  background: rgba(255,255,255,0.04);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
}
.photo-viewer-nav svg { width: 22px; height: 22px; }
.photo-viewer-nav:hover { border-color: var(--c-accent); color: var(--c-accent); background: rgba(255,255,255,0.08); }
.photo-viewer-prev { left: 20px; }
.photo-viewer-next { right: 20px; }
.photo-viewer-counter {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--f-mono);
  font-size: 13px;
  color: rgba(245,247,250,0.7);
  background: rgba(255,255,255,0.06);
  padding: 8px 16px;
  border-radius: 100px;
}

@media (max-width: 760px) {
  .photo-viewer-nav { width: 44px; height: 44px; }
  .photo-viewer-nav svg { width: 18px; height: 18px; }
  .photo-viewer-prev { left: 10px; }
  .photo-viewer-next { right: 10px; }
  .photo-viewer-close { top: 14px; right: 14px; width: 40px; height: 40px; }
  .photo-viewer-img { max-width: 94vw; max-height: 78vh; }
}

/* ---------- 8. Reference (mřížka dlaždic na loga) ---------- */
.reference { background: var(--c-bg); }
.reference .section-head { color: var(--c-text-light); }
.reference-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.reference-tile {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.reference-tile.is-empty {
  border: 1.5px dashed rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.04);
  color: rgba(255,255,255,0.55);
  flex-direction: column;
  gap: 8px;
}
.reference-tile.is-empty svg { width: 22px; height: 22px; }
.reference-tile.is-empty .tile-label {
  font-family: var(--f-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-align: center;
  color: rgba(255,255,255,0.55);
}
.reference-tile.has-logo {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
}
.reference-tile.has-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: grayscale(1) brightness(1.6);
  opacity: 0.85;
  transition: filter 0.25s var(--ease), opacity 0.25s var(--ease);
}
.reference-tile.has-logo:hover img {
  filter: grayscale(0);
  opacity: 1;
}

/* ---------- FAQ ---------- */
.faq { background: var(--c-bg-light); }
.faq-list { max-width: 780px; }
.faq-item { border-bottom: 1px solid var(--c-border-dark); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  text-align: left;
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 16px;
  gap: 20px;
}
.faq-question .icon {
  flex-shrink: 0;
  width: 20px; height: 20px;
  position: relative;
}
.faq-question .icon::before,
.faq-question .icon::after {
  content: '';
  position: absolute;
  background: var(--c-text-dark);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.faq-question .icon::before { top: 50%; left: 0; width: 100%; height: 1.5px; transform: translateY(-50%); }
.faq-question .icon::after { left: 50%; top: 0; height: 100%; width: 1.5px; transform: translateX(-50%); }
.faq-item.open .faq-question .icon::after { opacity: 0; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease);
}
.faq-answer p {
  padding-bottom: 22px;
  font-size: 15px;
  color: var(--c-steel);
  max-width: 640px;
}

/* ---------- 9. Kontakt ---------- */
.contact { background: var(--c-bg-light); }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
}
.contact-info-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--c-border-dark);
}
.contact-info-item .label {
  font-family: var(--f-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-steel);
  margin-bottom: 6px;
}
.contact-info-item .value {
  font-size: 15.5px;
  color: var(--c-text-dark);
}
.contact-info-item a:hover { color: var(--c-accent-dark); }
.contact-map {
  position: relative;
  min-height: 380px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-border-dark);
  filter: grayscale(0.1) contrast(1.03);
}
.contact-map-iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ---------- Footer ---------- */
.footer {
  background: #060F1D;
  color: rgba(245,247,250,0.6);
  padding: 52px 0 26px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(245,247,250,0.08);
  margin-bottom: 22px;
}
.footer-brand .logo { margin-bottom: 12px; }
.footer-tagline { font-size: 14px; max-width: 320px; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  max-width: 460px;
  justify-content: flex-end;
}
.footer-links a { font-size: 14px; }
.footer-links a:hover { color: var(--c-accent); }
.footer-bottom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.footer-bottom { font-size: 12.5px; font-family: var(--f-mono); }
.footer-credit {
  font-size: 12.5px;
  font-family: var(--f-mono);
  color: rgba(245,247,250,0.4);
  padding-left: 14px;
  border-left: 1px solid rgba(245,247,250,0.15);
}
.footer-credit:hover { color: var(--c-accent); }
.footer-legal-links {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding-left: 14px;
  border-left: 1px solid rgba(245,247,250,0.15);
}
.footer-legal-links a,
.footer-legal-link-btn {
  font-size: 12.5px;
  color: rgba(245,247,250,0.4);
}
.footer-legal-link-btn {
  background: none;
  border: none;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer-legal-links a:hover,
.footer-legal-link-btn:hover { color: var(--c-accent); }
.footer-admin-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: rgba(245,247,250,0.35);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
  flex-shrink: 0;
}
.footer-admin-link svg { width: 14px; height: 14px; }
.footer-admin-link:hover { color: var(--c-accent); background: rgba(245,247,250,0.06); }

/* ---------- Cookie lišta ---------- */
.cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 500;
  background: var(--c-bg);
  border-top: 1px solid rgba(245,247,250,0.12);
  box-shadow: 0 -8px 32px rgba(0,0,0,0.25);
  padding: 22px 0;
  transform: translateY(110%);
  transition: transform 0.4s var(--ease);
}
.cookie-banner.open { transform: translateY(0); }
.cookie-banner-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cookie-banner-text {
  flex: 1;
  min-width: 260px;
  color: rgba(245,247,250,0.75);
  font-size: 13.5px;
  line-height: 1.6;
}
.cookie-banner-text p:first-child {
  color: var(--c-text-light);
  font-size: 15px;
  margin-bottom: 6px;
}
.cookie-banner-text a { color: var(--c-accent); text-decoration: underline; text-underline-offset: 2px; }
.cookie-banner-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  flex-shrink: 0;
}
.cookie-banner-actions .btn { padding: 12px 22px; font-size: 13.5px; }

@media (max-width: 760px) {
  .cookie-banner-inner { flex-direction: column; align-items: stretch; gap: 18px; }
  .cookie-banner-actions { flex-direction: column-reverse; }
  .cookie-banner-actions .btn { width: 100%; }
  .footer-legal-links { padding-left: 0; border-left: none; flex-direction: column; align-items: flex-start; gap: 10px; }
}

/* ---------- Reveal-on-scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .revize-types { grid-template-columns: 1fr; }
  .revize-columns { grid-template-columns: 1fr; gap: 40px; }
  .montaze-inner, .contact-inner { grid-template-columns: 1fr; }
  .about-firm-inner { grid-template-columns: 1fr; }
  .skoleni-grid { grid-template-columns: 1fr; }
  .servis-inner { grid-template-columns: 1fr; gap: 32px; }
  .gallery-categories { grid-template-columns: repeat(2, 1fr); }
  .gallery-lightbox-grid { grid-template-columns: repeat(2, 1fr); }
  .reference-grid { grid-template-columns: repeat(3, 1fr); }
  .py { padding: 76px 0; }
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: 78%;
    max-width: 320px;
    background: var(--c-bg);
    border: none;
    border-radius: 0;
    flex-direction: column;
    justify-content: center;
    padding: 40px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    z-index: 105;
    overflow-y: auto;
  }
  .nav-links a {
    padding: 13px 4px;
    font-size: 16px;
    width: 100%;
    display: block;
    color: var(--c-text-light);
  }
  .nav-links a:hover { color: var(--c-text-light); }
  .nav-cursor { display: none; }
  .nav-links.open { transform: translateX(0); }
  .nav-toggle { display: flex; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .services-grid { grid-template-columns: 1fr; }
  .about-firm-badges { grid-template-columns: 1fr; }
  .gallery-categories { grid-template-columns: 1fr; }
  .gallery-lightbox-grid { grid-template-columns: 1fr; }
  .reference-grid { grid-template-columns: repeat(2, 1fr); }
  .revize-why { padding: 28px; }
  .py { padding: 60px 0; }
  .section-head { margin-bottom: 36px; }

  /* Container padding o něco menší na mobilu, ať text nemá pocit
     "tísně" u okrajů, ale pořád je dost místa po stranách. */
  .container { padding: 0 18px; }

  /* Hero: tlačítka pod sebou na celou šířku, snazší dotyk. */
  .hero-actions { flex-direction: column; width: 100%; max-width: 340px; }
  .hero-actions .btn { width: 100%; }

  /* Footer: odkazy pod sebou s dostatečnou dotykovou plochou
     (min. 44px výška), ne 4 odkazy na malém řádku vedle sebe. */
  .footer-inner { flex-direction: column; gap: 24px; }
  .footer-links { flex-direction: column; gap: 2px; width: 100%; max-width: none; justify-content: flex-start; }
  .footer-links a {
    padding: 12px 0;
    display: block;
    width: 100%;
    border-bottom: 1px solid rgba(245,247,250,0.06);
  }
  .footer-admin-link { align-self: flex-start; }
  .footer-bottom-row { flex-direction: column; align-items: flex-start; gap: 12px; }
  .footer-bottom-left { flex-direction: column; align-items: flex-start; gap: 8px; }
  .footer-credit { padding-left: 0; border-left: none; }

  /* Kontakt: mapa nižší na mobilu, ať nezabírá zbytečně moc místa
     před scrollem k dalšímu obsahu. */
  .contact-map { min-height: 260px; }

  /* Galerie lightbox: zavírací tlačítko dost velké na dotyk,
     nadpis alba se nepřekrývá s křížkem na úzkých obrazovkách. */
  .gallery-lightbox-header { gap: 12px; }
  .gallery-lightbox-header h3 { font-size: 17px; }
  .gallery-lightbox-close { width: 44px; height: 44px; flex-shrink: 0; }

  /* Admin-style prvky sdílené s veřejným webem (tlačítka apod.)
     dostávají o něco větší minimální dotykovou plochu. */
  .btn { min-height: 44px; }
}

/* Velmi malé telefony (staré Android modely, iPhone SE 1./2. generace
   na šířku 320-359px) — o něco menší typografie a odsazení, ať se
   obsah nemačká a nadpisy se zbytečně nelámou na 4+ řádky. */
@media (max-width: 359px) {
  .container { padding: 0 14px; }
  .hero-title { font-size: clamp(30px, 8vw, 40px); }
  .section-title { font-size: clamp(24px, 7vw, 30px); }
  .hero-eyebrow-tag { font-size: 13px; }
  .hero-subtitle { font-size: 15.5px; }
  .py { padding: 48px 0; }
  .logo { font-size: 14px; }
  .nav-links { width: 86%; padding: 32px 24px; }
  .reference-grid { grid-template-columns: 1fr; }
}

/* Telefony na šířku (landscape) — nízká výška viewportu, hlavně
   pro hero a mobilní menu, ať nejsou nutkavě vysoké/nedostupné. */
@media (max-height: 480px) and (orientation: landscape) {
  .hero { padding-top: 64px; }
  .hero-inner { padding: 32px 0 24px; }
  .nav-links { padding: 20px 32px; justify-content: flex-start; gap: 2px; overflow-y: auto; }
  .nav-links a { padding: 9px 4px; }
  .py { padding: 44px 0; }
}