/* ===============================================================
   CleanRail – landing page
   user/themes/typhoon/css/custom.css

   Rozvržení vychází z demo stránky Typhoon "onepage".
   Akcentní barva pochází z tiskové prezentace CleanRail.
   Typhoon staví na TailwindCSS, jehož preflight resetuje nadpisy,
   odstavce i seznamy – typografii proto dodáváme explicitně.
   =============================================================== */

:root {
  --cr-bg:        #1c1c1e;
  --cr-bg-alt:    #232326;
  --cr-accent:    #4fbf94;
  --cr-accent-lt: #66ca9d;
  --cr-accent-dk: #2f8f6c;
  --cr-heading:   #ffffff;
  --cr-text:      #a9adb4;
  --cr-line:      rgba(255, 255, 255, 0.10);
  --cr-wrap:      1180px;
}

/* --- plynulé rolování ------------------------------------------- */

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* --- pásy přes celou šířku --------------------------------------- */

.cr-hero,
.cr-band {
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  scroll-margin-top: 4.5rem;
}

.cr-band {
  background: var(--cr-bg);
  color: var(--cr-text);
  padding-top: 6rem;
  padding-bottom: 6rem;
}

.cr-band--alt    { background: var(--cr-bg-alt); }
.cr-band--accent { background: var(--cr-accent); }

.cr-band > * {
  max-width: var(--cr-wrap);
  margin-left: auto;
  margin-right: auto;
}

/* --- animace při nascrollování -----------------------------------
   Scroll-driven animace, bez JavaScriptu. Prohlížeče bez podpory
   (Firefox, Safari) obsah prostě zobrazí bez efektu.
   ------------------------------------------------------------------ */

@keyframes cr-rise {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: none; }
}


/* --- hlavička sekce ------------------------------------------------ */

.cr-head { text-align: center; margin-bottom: 4rem; }

.cr-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cr-text);
  margin: 0 0 0.75rem;
}

.cr-band h2 {
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--cr-heading);
  margin: 0 0 1.25rem;
}

.cr-band h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--cr-heading);
  margin: 0 0 1.25rem;
}

.cr-head > p:not(.cr-eyebrow) {
  font-size: 1.15rem;
  line-height: 1.7;
  max-width: 42rem;
  margin: 0 auto 1rem;
}

.cr-band--accent .cr-eyebrow,
.cr-band--accent .cr-head > p:not(.cr-eyebrow) { color: rgba(255,255,255,0.88); }
.cr-band--accent h2 { color: #fff; }
.cr-band--accent .cr-head { margin-bottom: 0; }

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

.cr-hero {
  position: relative;
  min-height: 76vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 4rem;
  padding-bottom: 8rem;   /* opticky posune obsah výš */
  background:
    linear-gradient(rgba(12, 14, 20, 0.62), rgba(12, 14, 20, 0.74)),
    url('../images/cleanrail/hero-koleje.jpg') center / cover no-repeat;
}

.cr-hero__inner { max-width: 46rem; }

.cr-hero h1 {
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #fff;
  margin: 0;
}

.cr-hero h2 {
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--cr-accent-lt);
  margin: 0 0 1.5rem;
}

.cr-hero p {
  font-size: 1.2rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 2.25rem;
}

/* --- tlačítka --------------------------------------------------------- */

.cr-btn {
  display: inline-block;
  padding: 0.95rem 2rem;
  border-radius: 6px;
  background: var(--cr-accent);
  color: #10201a !important;
  font-weight: 700;
  text-decoration: none !important;
  transition: background 0.2s ease, color 0.2s ease;
}

.cr-btn:hover { background: var(--cr-accent-dk); color: #fff !important; }
.cr-btn--dark { background: #2b2b2e; color: #fff !important; }
.cr-btn--dark:hover { background: #17171a; color: #fff !important; }

/* --- mřížka funkcí ----------------------------------------------------- */

.cr-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.cr-feature p { margin: 0 0 0.75rem; line-height: 1.7; }

.cr-feature p:first-child {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.cr-feature p:first-child strong {
  color: var(--cr-heading);
  font-size: 1.1rem;
  font-weight: 700;
}

.cr-ico {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 8px;
  background: var(--cr-accent);
  color: #10201a;
  font-weight: 800;
  font-size: 1rem;
}

/* --- text + obrázek ----------------------------------------------------- */

.cr-split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: 3.5rem;
  align-items: center;
}

.cr-split__text p { font-size: 1.05rem; line-height: 1.75; margin: 0 0 1.25rem; }
.cr-split__text .cr-eyebrow { margin-bottom: 0.5rem; }
.cr-split--reverse .cr-split__media { order: -1; }

/* --- vícesloupcový text -------------------------------------------------- */

.cr-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 2.5rem;
}

.cr-cols p { margin: 0 0 1rem; line-height: 1.7; }
.cr-cols strong { color: var(--cr-heading); font-weight: 700; }

/* --- galerie -------------------------------------------------------------
   Pevné dva sloupce, aby čtyři náhledy tvořily rovnou mřížku 2×2.
   Jednotný poměr stran srovná popisky do jedné linky.
   -------------------------------------------------------------------------- */

.cr-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.cr-gallery figure { margin: 0; }

.cr-gallery img,
.cr-split__media img {
  display: block;
  width: 100%;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.40);
}

.cr-gallery img {
  aspect-ratio: 16 / 10;
  object-fit: contain;
  padding: 0.5rem;
}

.cr-split__media img { height: auto; }

.cr-gallery figcaption {
  margin-top: 0.85rem;
  font-size: 0.9rem;
  color: var(--cr-text);
}

/* --- klikací náhled -------------------------------------------------------- */

.cr-zoom {
  display: block;
  position: relative;
  cursor: zoom-in;
  transition: transform 0.25s ease;
}

.cr-zoom:hover { transform: translateY(-3px); }

/* --- lightbox (pouze CSS, přes :target) ------------------------------------- */

.cr-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
}

.cr-lightbox:target { display: flex; }

.cr-lightbox__bg {
  position: absolute;
  inset: 0;
  background: rgba(8, 9, 12, 0.92);
  cursor: zoom-out;
}

.cr-lightbox img {
  position: relative;
  max-width: min(1400px, 96vw);
  max-height: 90vh;
  width: auto;
  height: auto;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.6);
}

.cr-lightbox__close {
  position: absolute;
  top: 1.25rem;
  right: 1.75rem;
  font-size: 2.5rem;
  line-height: 1;
  color: #fff !important;
  text-decoration: none !important;
  opacity: 0.75;
}

.cr-lightbox__close:hover { opacity: 1; }

/* --- dlaždice vlastností ------------------------------------------------------
   Odrážka je vykreslená prvkem, ne znakem '/', aby ji neovlivnilo písmo.
   -------------------------------------------------------------------------------- */

.cr-tiles ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.35rem 2rem;
}

.cr-tiles li {
  position: relative;
  padding-left: 1.1rem;
  line-height: 1.6;
}

.cr-tiles li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.4em;
  width: 3px;
  height: 0.95em;
  border-radius: 2px;
  background: var(--cr-accent);
}

/* --- tabulka -------------------------------------------------------------------- */

.cr-specs table { width: 100%; border-collapse: collapse; }

.cr-specs th,
.cr-specs td {
  text-align: left;
  vertical-align: top;
  padding: 1rem;
  border-bottom: 1px solid var(--cr-line);
  line-height: 1.7;
}

.cr-specs th { color: var(--cr-heading); font-weight: 700; }
.cr-specs td:first-child { white-space: nowrap; width: 1%; }
.cr-specs strong { color: var(--cr-accent-lt); }

/* --- responzivita ----------------------------------------------------------------- */

@media (max-width: 860px) {
  .cr-gallery { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .cr-band { padding-top: 4rem; padding-bottom: 4rem; }
  .cr-head { margin-bottom: 2.5rem; }
  .cr-features, .cr-split { gap: 2.25rem; }
  .cr-split--reverse .cr-split__media { order: 0; }
  .cr-hero { min-height: 68vh; padding-bottom: 5rem; }
}

/* --- skrytí prvků tématu -----------------------------------------------------------
   Nouzová varianta, pokud se logo/odkazy nepodaří vypnout v nastavení.
   Selektory ověřte v prohlížeči (pravé tlačítko → Prozkoumat prvek).

header .logo,
header a[href="/"] img { display: none; }
   -------------------------------------------------------------------------------------- */