/* ── Reset a základ ───────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --zah-tmava:    #0f2d1a;
  --zah-hlavni:   #1a4d2e;
  --zah-stredni:  #3a8c28;
  --zah-svetla:   #5dc832;
  --zah-pale:     #d6f0be;
  --zah-cream:    #f5fced;
  --zah-gold:     #c9a84c;
  --zah-text:     #1c2b22;
  --zah-text-sec: #4a6355;
  --zah-text-mut: #7a9585;
  --zah-border:   rgba(45,134,83,.15);
  --nav-h:        64px;
  --max-w:        1600px;
  --r-md:         8px;
  --r-lg:         14px;
  --r-xl:         20px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'DM Sans', 'Segoe UI', sans-serif;
  background: var(--zah-cream);
  color: var(--zah-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--zah-stredni); text-decoration: none; }
a:hover { color: var(--zah-hlavni); }

/* ── Typografie ───────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: 'Playfair Display', Georgia, serif;
  line-height: 1.15;
  color: var(--zah-tmava);
  letter-spacing: -.02em;
}
h1 { font-size: clamp(32px, 5vw, 56px); }
h2 { font-size: clamp(24px, 3.5vw, 38px); }
h3 { font-size: clamp(18px, 2.5vw, 24px); }
h4 { font-size: 16px; font-weight: 700; }

p { margin-bottom: 1em; color: var(--zah-text-sec); }

/* ── Layout ───────────────────────────────────────────── */
.zah-container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.zah-section { padding: 80px 0; }
.zah-section-sm { padding: 48px 0; }

/* ── Navigace ─────────────────────────────────────────── */
.zah-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  background: var(--zah-tmava);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: box-shadow .3s;
}
.zah-nav.scrolled { box-shadow: 0 2px 24px rgba(0,0,0,.25); }
.zah-nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  height: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
}
.zah-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; flex-shrink: 0;
}
.zah-logo img { height: 60px; width: auto; filter: drop-shadow(0 0 3px rgba(255,255,255,0.9)) drop-shadow(0 0 1px rgba(255,255,255,1)); }
.zah-logo-text {
  font-family: 'Playfair Display', serif;
  font-size: 26px; font-weight: 700;
  color: #fff; letter-spacing: -.02em;
}
.zah-logo-text span { color: var(--zah-svetla); }

.zah-nav-menu {
  display: flex; align-items: center; gap: 4px;
  list-style: none; flex: 1; justify-content: center;
}
.zah-nav-menu a {
  display: block; padding: 8px 14px;
  font-size: 14px; font-weight: 500; color: rgba(255,255,255,.7);
  border-radius: var(--r-md);
  transition: color .2s, background .2s;
  white-space: nowrap;
}
.zah-nav-menu a:hover,
.zah-nav-menu a.aktivni { color: #fff; background: rgba(255,255,255,.1); }
.zah-nav-menu a.aktivni { color: var(--zah-svetla); background: rgba(78,203,130,.1); }

.zah-nav-menu-odhlasit { display: none; } /* vždy skryto na desktopu, viditelné jen v mob. menu */
.zah-nav-akce { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.zah-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 20px; border-radius: 100px;
  font-size: 14px; font-weight: 600;
  cursor: pointer; border: none; transition: all .2s;
  text-decoration: none;
}
.zah-btn-primarni {
  background: var(--zah-svetla); color: var(--zah-tmava);
}
.zah-btn-primarni:hover { background: #6ed99a; color: var(--zah-tmava); transform: translateY(-1px); }
.zah-btn-ghost {
  background: transparent; color: rgba(255,255,255,.7);
  border: 1px solid rgba(255,255,255,.2);
}
.zah-btn-ghost:hover { color: #fff; border-color: rgba(255,255,255,.5); }
.zah-btn-zeleny {
  background: var(--zah-stredni); color: #fff;
}
.zah-btn-zeleny:hover { background: var(--zah-hlavni); color: #fff; transform: translateY(-1px); }

/* Hamburger mobilní menu */
.zah-nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.zah-nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: rgba(255,255,255,.8); border-radius: 2px;
  transition: all .3s;
}

/* ── Obsah pod nav ────────────────────────────────────── */
.zah-page-wrap { padding-top: var(--nav-h); min-height: 100vh; }

/* ── Footer ───────────────────────────────────────────── */
.zah-footer {
  background: var(--zah-tmava);
  padding: 56px 0 28px;
  margin-top: 80px;
  width: 100%;
  box-sizing: border-box;
}
.zah-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.zah-footer-o h3 {
  font-family: 'Playfair Display', serif;
  font-size: 22px; color: #fff; margin-bottom: 10px;
}
.zah-footer-o h3 span { color: var(--zah-svetla); }
.zah-footer-o p { font-size: 14px; color: rgba(255,255,255,.4); line-height: 1.7; max-width: 260px; }
.zah-footer-sloupec h4 {
  font-size: 11px; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: rgba(255,255,255,.3);
  margin-bottom: 16px; font-family: 'DM Sans', sans-serif;
}
.zah-footer-sloupec ul { list-style: none; }
.zah-footer-sloupec li { margin-bottom: 10px; }
.zah-footer-sloupec a {
  font-size: 14px; color: rgba(255,255,255,.5);
  transition: color .2s;
}
.zah-footer-sloupec a:hover { color: var(--zah-svetla); }
.zah-footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: rgba(255,255,255,.25);
}
.zah-footer-ig {
  display: inline-flex; align-items: center; gap: 6px;
  color: rgba(255,255,255,.35); text-decoration: none; font-size: 12px;
  transition: color .2s;
}
.zah-footer-ig:hover { color: #fff; }

/* ── Breadcrumb ───────────────────────────────────────── */
.zah-breadcrumb {
  padding: 14px 0;
  font-size: 13px; color: var(--zah-text-mut);
  display: flex; align-items: center; gap: 6px;
  border-bottom: 1px solid var(--zah-border);
  margin-bottom: 32px;
}
.zah-breadcrumb a { color: var(--zah-text-mut); }
.zah-breadcrumb a:hover { color: var(--zah-stredni); }
.zah-breadcrumb-sep { opacity: .4; }

/* ── Responzivita ─────────────────────────────────────── */
@media (max-width: 900px) {
  .zah-nav { height: auto; }
  .zah-nav-inner { flex-wrap: nowrap; padding: 8px 16px; height: auto; gap: 8px; align-items: center; }
  .zah-nav-menu { display: none; }
  .zah-nav-toggle { display: flex; flex-shrink: 0; }
  /* Přihlášený: skryj Odhlásit a Premium — jsou v hamburger menu */
  .zah-nav-odhlasit { display: none; }
  .zah-nav-premium { display: none; }
  /* Nepřihlášený: tlačítka pod sebou */
  .zah-nav-akce { flex-direction: column; gap: 4px; align-items: flex-end; flex-shrink: 0; }
  .zah-nav-akce .zah-btn { font-size: 12px; padding: 5px 11px; white-space: nowrap; }
  /* Hamburger menu — odhlášení viditelné jen v menu */
  .zah-nav-menu-odhlasit { display: none; }
  .zah-nav-menu.otevreno .zah-nav-menu-odhlasit { display: block; }
  .zah-nav-menu.otevreno {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--zah-tmava);
    padding: 16px 24px 24px;
    border-bottom: 1px solid rgba(255,255,255,.1);
    align-items: flex-start;
  }
  .zah-footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 600px) {
  .zah-container { padding: 0 16px; }
  .zah-footer-grid { grid-template-columns: 1fr; }
  .zah-footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .zah-logo-text { font-size: 20px; }
  .zah-pwa-grid { grid-template-columns: 1fr !important; }
}

/* ── Botanický placeholder ────────────────────────────────── */
.zah-foto-placeholder {
  width:100%; height:100%;
  background: linear-gradient(135deg, var(--zah-pale) 0%, #e8f5d4 100%);
  display:flex; align-items:center; justify-content:center;
  flex-direction:column; gap:8px;
}
.zah-foto-placeholder svg { opacity:.35; }
.zah-foto-placeholder span { font-size:11px; color:var(--zah-text-mut); letter-spacing:.04em; }

/* ── Reklamy ─────────────────────────────────────────────────────────────── */
.zah-reklama {
    width: 100%;
    text-align: center;
    overflow: hidden;
}
.zah-reklama-nad_navigaci,
.zah-reklama-pod_navigaci,
.zah-reklama-paticka {
    background: #f9fafb;
    padding: 8px 0;
    border-bottom: 1px solid var(--zah-border);
}
.zah-reklama-paticka { border-top: 1px solid var(--zah-border); border-bottom: none; }
.zah-reklama-katalog_mezi,
.zah-reklama-rostlina_pod_popisem,
.zah-reklama-profil_nad_zalozkami {
    margin: 20px auto;
    max-width: 900px;
}