/* BILOBA – odstíny bílé a zelené, responzivní Bootstrap doplněk */

:root {
  --biloba-white: #ffffff;
  --biloba-offwhite: #f8faf8;
  --biloba-light: #e8f5e9;
  --biloba-mint: #c8e6c9;
  --biloba: #2e7d32;
  --biloba-dark: #1b5e20;
  --biloba-muted: #5a6b5c;
  --biloba-text: #1a2e1b;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--biloba-text);
  background-color: var(--biloba-white);
}

/* Barvy pro Bootstrap utility */
.text-biloba { color: var(--biloba) !important; }
.text-biloba-dark { color: var(--biloba-dark) !important; }
.text-biloba-muted { color: var(--biloba-muted) !important; }

.bg-biloba { background-color: var(--biloba) !important; }
.bg-biloba-light { background-color: var(--biloba-light) !important; }
.bg-biloba-dark { background-color: var(--biloba-dark) !important; }
.bg-biloba-offwhite { background-color: var(--biloba-offwhite) !important; }

/* Tlačítko */
.btn-biloba {
  background-color: var(--biloba);
  border-color: var(--biloba);
  color: var(--biloba-white);
}
.btn-biloba:hover {
  background-color: var(--biloba-dark);
  border-color: var(--biloba-dark);
  color: var(--biloba-white);
}

/* Navigace */
.navbar-brand.text-biloba:hover { color: var(--biloba-dark) !important; }
/* Logo v headeru – tvar listů v kruhu (tmavě zelený), vidět před textem; bílé pozadí obrázku se sladí s pozadím headeru */
.navbar-brand-logo {
  height: 44px;
  width: 44px;
  object-fit: contain;
  flex-shrink: 0;
  mix-blend-mode: darken;
}
.navbar-brand:hover .navbar-brand-logo {
  opacity: 0.9;
}
.nav-link {
  color: var(--biloba-muted) !important;
  font-weight: 500;
  transition: color 0.2s ease, transform 0.2s ease;
}
.nav-link:hover {
  color: var(--biloba) !important;
  transform: scale(1.18);
}

/* Hero – obrázek přes celou sekci; nadpis a text zvýrazněné pro čitelnost (pozadí: Unsplash) */
.hero-bg {
  position: relative;
  background-image: url("../images/foto/uvodnik.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 420px;
}
/* Filtr přes celou hero – nápis vynikne, obrázek zůstává viditelný */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.35) 40%, rgba(0, 0, 0, 0.2) 100%);
  pointer-events: none;
}
.hero-bg .container { z-index: 1; }
/* Nadpis – větší, silný obrys a stín pro dobrou čitelnost */
.hero-title {
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  text-shadow:
    0 0 2px rgba(0, 0, 0, 1),
    0 0 8px rgba(0, 0, 0, 1),
    0 1px 2px rgba(0, 0, 0, 1),
    0 2px 4px rgba(0, 0, 0, 0.95),
    0 3px 12px rgba(0, 0, 0, 0.9),
    0 4px 20px rgba(0, 0, 0, 0.7);
}
.hero-text {
  color: #f5faf5;
  text-shadow:
    0 0 4px rgba(0, 0, 0, 1),
    0 1px 3px rgba(0, 0, 0, 1),
    0 2px 8px rgba(0, 0, 0, 0.95),
    0 3px 14px rgba(0, 0, 0, 0.8);
}
.hero-text-muted { color: #e8f0e8; }
.hero-link {
  color: #c8e6c9;
  text-decoration: none;
  font-weight: 500;
  text-shadow: 0 0 4px rgba(0, 0, 0, 1), 0 1px 3px rgba(0, 0, 0, 0.95), 0 2px 8px rgba(0, 0, 0, 0.85);
}
.hero-link:hover { color: #fff; }
.hero-visual { min-height: 180px; }

/* Služby – ikonky a položky */
.service-item { transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease; }
.service-item:hover { background-color: var(--biloba-mint) !important; box-shadow: 0 4px 16px rgba(46, 125, 50, 0.18); transform: translateY(-2px); }

/* Moderní rozložení dlaždic – bento grid (aktuální trendy) */
.tiles-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 768px) {
  .tiles-grid { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
}
@media (min-width: 992px) {
  .tiles-grid { grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
}
.tiles-grid .tile-featured { grid-column: span 2; }
@media (min-width: 992px) {
  .tiles-grid .tile-featured { grid-column: span 2; }
}
@media (max-width: 767.98px) {
  .tiles-grid .tile-featured { grid-column: span 2; }
}
.tiles-grid .service-item {
  padding: 1.25rem 1.25rem !important;
  border-radius: 1rem !important;
  min-height: 5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}
.tiles-grid .tile-featured .service-item {
  min-height: 5.5rem;
  flex-direction: row;
  align-items: center;
  gap: 1rem;
}
.tiles-grid .tile-featured .service-item i { font-size: 1.75rem !important; }
.tiles-grid .tile-featured .service-item span { font-size: 1rem !important; }

/* Karty galerie – asymetrické rozložení */
.gallery-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 992px) {
  .gallery-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1.5rem;
  }
  .gallery-grid .gallery-card--wide { grid-column: span 1; grid-row: span 1; }
  .gallery-grid .gallery-card:first-child { grid-column: 1; grid-row: 1; }
  .gallery-grid .gallery-card:nth-child(2) { grid-column: 2; grid-row: 1; }
  .gallery-grid .gallery-card:nth-child(3) { grid-column: 1; grid-row: 2; }
  .gallery-grid .gallery-card:nth-child(4) { grid-column: 2; grid-row: 2; }
}
.gallery-grid .card {
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.gallery-grid .card:hover { box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12); transform: translateY(-4px); }

/* Vody – příklady realizací vedle sebe na desktopu */
@media (min-width: 992px) {
  .vody-examples { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
}
.vody-examples .vody-block { margin-bottom: 1.5rem; }
.vody-examples .vody-block:last-child { margin-bottom: 0; }
.vody-examples .gallery-main-img { border-radius: 1rem; }
.vody-examples button.gallery-card { border-radius: 1rem; overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.08); transition: box-shadow 0.25s ease; }
.vody-examples button.gallery-card:hover { box-shadow: 0 12px 32px rgba(0,0,0,0.12); }

/* Galerie – hlavní foto klikatelné, listování v modalu */
.gallery-card [data-gallery],
.gallery-card button[data-gallery] { cursor: pointer; }
/* Náhled fotek před kliknutím – stejný rozměr jako v sekci Vody, bez roztahování */
.gallery-card .gallery-main-img {
  width: 100%;
  height: auto;
  max-height: 280px;
  object-fit: cover;
  object-position: center;
  transition: opacity 0.2s ease;
}
.gallery-card:hover .gallery-main-img { opacity: 0.92; }
#galleryCarousel .carousel-item img { max-height: 70vh; object-fit: contain; }

/* Odkazy v kontaktu */
#kontakt a:hover { text-decoration: underline !important; }

/* Honeypot – skryté pole pro roboty (neviditelné pro člověka) */
.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}
.contact-form .form-label { color: rgba(255,255,255,0.95); }
.contact-form .form-control::placeholder { color: #999; }
#kontakt .alert-success { background: var(--biloba); border-color: var(--biloba); color: #fff; }
#kontakt .alert-danger { background: #8b2635; border-color: #8b2635; color: #fff; }

/* Responzivní úpravy */
@media (max-width: 991.98px) {
  .hero h1 { font-size: 2rem; }
  .hero .lead { font-size: 1rem; }
}

@media (max-width: 575.98px) {
  .hero-bg { min-height: 380px; padding-top: 2rem; padding-bottom: 2rem; }
  .hero-visual { min-height: 120px; }
}