/* =========================================================
   HLAVIČKA + NAVIGACE
   ========================================================= */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(20, 35, 27, 0.72);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(143, 176, 162, 0.12);
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
header.scrolled {
  background: rgba(15, 26, 19, 0.94);
  border-bottom-color: rgba(143, 176, 162, 0.2);
}

.navbar {
  max-width: var(--container);
  margin: 0 auto;
  padding: .7rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* ---- Značka ---- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  text-decoration: none;
  color: var(--paper-text);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1;
}
.brand img { width: 40px; height: 40px; }
.brand-name { font-size: 1.05rem; }
.brand-name small {
  display: block;
  font-family: var(--font-data);
  font-weight: 400;
  font-size: .62rem;
  letter-spacing: .22em;
  color: var(--amber);
  margin-top: 3px;
}

/* ---- Desktop navigace ---- */
.nav-desktop ul {
  display: flex;
  align-items: center;
  gap: .3rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-desktop a {
  display: inline-block;
  padding: .5rem .85rem;
  font-size: .9rem;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--paper-soft);
  text-decoration: none;
  border-radius: var(--r-pill);
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav-desktop a:hover,
.nav-desktop a.active { color: var(--paper-text); background: rgba(255,255,255,.06); }
.nav-desktop a.nav-cta {
  margin-left: .4rem;
  background: var(--amber);
  color: var(--ink);
  font-weight: 600;
}
.nav-desktop a.nav-cta:hover { background: var(--amber-soft); }

/* ---- Hamburger ---- */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(143,176,162,.25);
  border-radius: var(--r-sm);
  cursor: pointer;
}
.navbar-toggle .bar {
  width: 22px; height: 2px;
  background: var(--paper-text);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
body.menu-open .navbar-toggle .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.menu-open .navbar-toggle .bar:nth-child(2) { opacity: 0; }
body.menu-open .navbar-toggle .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Mobilní off-canvas ---- */
.menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15,26,19,.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease);
  z-index: 90;
}
body.menu-open .menu-backdrop { opacity: 1; pointer-events: auto; }

@media (max-width: 860px) {
  .navbar-toggle { display: flex; }
  .nav-desktop {
    position: fixed;
    top: 0; right: 0;
    height: 100dvh;
    width: min(78vw, 320px);
    background: var(--forest);
    border-left: 1px solid rgba(143,176,162,.15);
    transform: translateX(100%);
    transition: transform .35s var(--ease);
    z-index: 95;
    padding: 5rem 1.5rem 2rem;
    overflow-y: auto;
  }
  body.menu-open .nav-desktop { transform: translateX(0); }
  .nav-desktop ul { flex-direction: column; align-items: stretch; gap: .2rem; }
  .nav-desktop a { padding: .85rem 1rem; font-size: 1.05rem; }
  .nav-desktop a.nav-cta { margin: .6rem 0 0; text-align: center; }
}