/* ===== Základ ===== */
:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --line: #e6e6e6;
  --header-h: 72px;
  --maxw: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Montserrat", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

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

h1, h2, h3 { font-weight: 600; letter-spacing: .02em; margin: 0 0 .6em; }
h2.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  text-transform: uppercase;
  letter-spacing: .12em;
  text-align: center;
  margin: 0 0 .2em;
}
section { padding: 80px 0; }
section + section { border-top: 1px solid var(--line); }

/* ===== Hlavička ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
  z-index: 100;
}
.site-header .wrap {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
}
.logo img { height: 34px; width: auto; }
.logo .logo-text {
  font-weight: 600;
  letter-spacing: .22em;
  font-size: .9rem;
  text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: 36px; }
.nav a {
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--muted);
  transition: color .2s;
}
.nav a:hover { color: var(--fg); }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  width: 40px; height: 40px;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--fg);
  margin: 5px 0;
  transition: transform .25s, opacity .25s;
}

/* ===== Hero (úvodní foto) ===== */
.hero {
  margin-top: var(--header-h);
  height: calc(100vh - var(--header-h));
  min-height: 420px;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background: rgba(0, 0, 0, .32);
}
.hero-inner { position: relative; z-index: 1; padding: 0 24px; }
.hero-logo {
  height: clamp(80px, 15vw, 132px);
  width: auto;
  color: #fff;
  filter: drop-shadow(0 2px 14px rgba(0, 0, 0, .45));
}
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0);
  overflow: hidden;
}
.hero p {
  letter-spacing: .26em;
  text-transform: uppercase;
  font-size: clamp(.75rem, 1.6vw, .95rem);
  margin: 0;
}

/* ===== Biografie ===== */
/* Úvodní text: plná šířka .wrap, aby řádky lícovaly s mřížkou galerií níže */
.bio { color: #333; }
.bio p { margin: 0; }
.bio-text {
  font-family: "Sora", system-ui, sans-serif;
  font-weight: 500;
  font-size: 1.05rem;
  text-align: center;       /* řádky na střed, kontejner plná šířka .wrap */
  word-break: break-word;
  line-height: 2;
}

/* ===== Mřížka galerií (úvodní) ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 2.5rem;   /* volné místo mezi nadpisem a náhledy */
}
.gal-card { display: block; }
.gal-thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #f2f2f2;
}
.gal-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease, filter .4s ease;
}
.gal-card:hover .gal-thumb img { transform: scale(1.06); filter: brightness(.85); }
.gal-caption {
  margin-top: 14px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .85rem;
  color: var(--muted);
  transition: color .2s;
}
.gal-card:hover .gal-caption { color: var(--fg); }

/* ===== Galerie: celé fotky pod sebou ===== */
.photo-stack {
  margin-top: 2.5rem;
}
.photo-stack img {
  display: block;
  cursor: zoom-in;             /* signalizuje rozkliknutí do lightboxu */
  margin: 8.5vh auto;          /* svislá mezera mezi fotkami + vodorovné vycentrování */
  max-width: 94vw;             /* malý okraj po stranách */
  /* výška okna minus pevná hlavička a malý okraj – aby se vešla i nejvyšší (čtvercová) fotka */
  max-height: calc(100vh - var(--header-h) - 4vh);
  width: auto;
  height: auto;                /* fotka se vejde celá – limituje šířka nebo výška */
}

.page-head {
  margin-top: var(--header-h);
  padding: 64px 0 0;
  text-align: center;
}
.back-link {
  display: inline-block;
  margin-top: 1rem;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
}
.back-link:hover { color: var(--fg); }

/* ===== Kontakt ===== */
.contact { text-align: center; }
.contact a { border-bottom: 1px solid var(--fg); padding-bottom: 2px; }
.contact .big {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  letter-spacing: .04em;
  display: inline-block;
  margin: .4rem 0;
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
  text-align: center;
  color: var(--muted);
  font-size: .8rem;
  letter-spacing: .08em;
}
.site-footer a:hover { color: var(--fg); }
.site-footer .footer-links { margin-bottom: .6rem; }
.site-footer .footer-links a { margin: 0 12px; text-transform: uppercase; letter-spacing: .12em; }

/* ===== Lightbox ===== */
.lightbox {
  position: fixed; inset: 0;
  background: #ffffff;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 92vw;
  max-height: 88vh;
  object-fit: contain;
  box-shadow: 0 6px 40px rgba(0, 0, 0, .18);
}
.lb-btn {
  position: absolute;
  background: none; border: 0;
  color: #1a1a1a;
  cursor: pointer;
  opacity: .65;
  transition: opacity .2s;
  user-select: none;
}
.lb-btn:hover { opacity: 1; }
.lb-close { top: 18px; right: 26px; font-size: 2.4rem; line-height: 1; }
.lb-prev, .lb-next { top: 50%; transform: translateY(-50%); font-size: 3rem; padding: 0 18px; }
.lb-prev { left: 8px; }
.lb-next { right: 8px; }
.lb-counter {
  position: absolute;
  bottom: 22px; left: 0; right: 0;
  text-align: center;
  color: #1a1a1a;
  opacity: .55;
  font-size: .85rem;
  letter-spacing: .1em;
}

/* ===== Responzivita ===== */
@media (max-width: 860px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .nav.open { max-height: 320px; }
  .nav a {
    width: 100%;
    text-align: center;
    padding: 18px 0;
    border-top: 1px solid var(--line);
  }
  section { padding: 56px 0; }
}
@media (max-width: 520px) {
  .gallery-grid { grid-template-columns: 1fr; }
}