/* Webloom header: glass pill nav, section links with scroll-spy state, language + theme switches, mobile menu. */

.site-header {
  position: fixed;
  top: 14px;
  left: 0;
  right: 0;
  z-index: 50;
  display: grid;
  justify-items: center;
  padding: 0 clamp(12px, 3vw, 32px);
  pointer-events: none;
}

.nav {
  pointer-events: auto;
  width: min(var(--max), 100%);
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 24px);
  padding: 8px 8px 8px 22px;
}

/* the glass thickens once content scrolls underneath */
.nav::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: var(--bg);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.site-header.is-scrolled .nav::after { opacity: 0.5; }

.nav__logo { flex: none; border-radius: 8px; }
.nav__logo svg { height: 24px; width: auto; color: var(--logo-ink); }

.nav__links { display: flex; gap: 4px; margin: 0 auto; padding: 0; list-style: none; }
.nav__links a {
  display: block;
  padding: 9px 15px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a[aria-current="true"] {
  color: var(--ink);
  background: var(--seg-active);
  box-shadow: inset 0 1px 0 var(--glass-hi), 0 4px 14px -8px var(--shadow-2);
}

.nav__tools { display: flex; align-items: center; gap: 8px; }

/* language switch: segmented SK / EN */
.lang { display: inline-flex; padding: 3px; border-radius: 999px; background: color-mix(in srgb, var(--ink) 6%, transparent); }
.lang button {
  border: 0;
  padding: 7px 11px;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: 500 0.72rem/1 var(--font-mono);
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color var(--dur), background-color var(--dur);
}
.lang button[aria-pressed="true"] { background: var(--seg-active); color: var(--ink); box-shadow: inset 0 1px 0 var(--glass-hi), 0 3px 10px -6px var(--shadow-2); }

.icon-btn {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: none;
  border: 0;
  border-radius: 50%;
  background: color-mix(in srgb, var(--ink) 6%, transparent);
  color: var(--ink);
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.icon-btn:hover { background: color-mix(in srgb, var(--ink) 12%, transparent); }
.icon-btn:active { transform: scale(0.94); }

/* theme toggle: sun ↔ moon */
.theme-toggle svg { grid-area: 1 / 1; width: 19px; height: 19px; transition: transform 0.6s var(--ease), opacity 0.35s var(--ease); }
.theme-toggle .moon { opacity: 0; transform: rotate(-90deg) scale(0.5); }
[data-theme="dark"] .theme-toggle .sun { opacity: 0; transform: rotate(90deg) scale(0.5); }
[data-theme="dark"] .theme-toggle .moon { opacity: 1; transform: none; }

/* mobile */
.nav__menu { display: none; }
.nav__menu span { grid-area: 1 / 1; width: 16px; height: 1.8px; border-radius: 2px; background: currentColor; transition: transform 0.4s var(--ease); }
.nav__menu span:first-child { transform: translateY(-3.5px); }
.nav__menu span:last-child { transform: translateY(3.5px); }
.nav__menu[aria-expanded="true"] span:first-child { transform: rotate(45deg); }
.nav__menu[aria-expanded="true"] span:last-child { transform: rotate(-45deg); }

.mobile-menu {
  pointer-events: auto;
  width: min(var(--max), 100%);
  margin-top: 10px;
  padding: 12px;
  display: grid;
  gap: 2px;
}
.mobile-menu[hidden] { display: none; }
.mobile-menu a { padding: 12px 16px; border-radius: var(--r-md); font: 600 1.45rem/1.2 var(--font-head); letter-spacing: -0.02em; text-decoration: none; }
.mobile-menu a[aria-current="true"] { background: var(--seg-active); }
.mobile-menu__tools { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 8px 4px; }

@media (max-width: 1020px) {
  .nav__links, .nav__tools > .lang { display: none; }
  .nav__logo { margin-right: auto; }
  .nav__menu { display: grid; }
}

@media (max-width: 520px) {
  .nav { padding-left: 18px; gap: 8px; }
  .nav__cta { display: none; }
}