/* =============================================================
   NUVETRIS – nav.css
   Site header, navigation, logo, language switcher
============================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid rgba(130, 170, 170,0.2);
  height: var(--nav-height);
  box-shadow: 0 2px 16px rgba(28, 45, 45,0.06);
}

.site-nav {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 32px;
  gap: 40px;
}

/* --- Logo --- */
.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  line-height: 1;
}

.nav-logo:hover {
  text-decoration: none;
}

.nav-logo img {
  display: block;
  height: 32px;
  width: auto;
}

/* --- Nav Links --- */
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  margin-inline-start: auto;
  list-style: none;
  padding: 0;
  margin-block: 0;
}

.nav-links li {
  list-style: none;
}

.nav-link {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--color-text);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s, color 0.15s;
}

.nav-link:hover,
.nav-link--active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

/* --- Language Switcher --- */
.nav-lang {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-inline-start: 8px;
}

.lang-link {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 15px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding-bottom: 1px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.lang-link:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.lang-link--active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Polylang */
.nav-lang ul {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-lang li { list-style: none; }

.nav-lang li a {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 15px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding-bottom: 1px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.nav-lang li.current-lang a {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.lang-sep {
  font-size: 14px;
  color: rgba(130, 170, 170,0.5);
}

/* --- Pro Gate Modal --- */
.pro-gate-overlay {
  position: fixed;
  inset: 0;
  background: rgba(28, 45, 45,0.5);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.pro-gate-overlay[hidden] {
  display: none;
}

.pro-gate-modal {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 500px;
  width: 100%;
  box-shadow: 0 32px 80px rgba(28, 45, 45,0.2);
}

.pro-gate-header {
  background: var(--color-accent);
  padding: 18px 28px;
}

.pro-gate-badge {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
}

.pro-gate-body {
  padding: 36px 28px 30px;
}

.pro-gate-title {
  font-family: var(--font-headline);
  font-size: 22px;
  line-height: 1.35;
  color: var(--color-text);
  margin-bottom: 18px;
}

.pro-gate-text {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.pro-gate-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* --- Hamburger Button --- */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  margin-inline-start: 12px;
  flex-shrink: 0;
}

.nav-hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Animate to X when open */
.nav-open .nav-hamburger-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-hamburger-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-open .nav-hamburger-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Mobile Nav --- */
@media (max-width: 768px) {
  .site-header {
    height: var(--nav-height);
    overflow: visible;
  }

  .site-nav {
    justify-content: space-between;
    gap: 0;
    padding-inline: 20px;
    position: relative;
  }

  .nav-hamburger {
    display: flex;
    order: 3;
  }

  .nav-lang {
    order: 2;
    margin-inline-start: auto;
    margin-inline-end: 4px;
  }

  /* Fixed dropdown below header — avoids sticky/overflow clipping */
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    width: 100%;
    padding: 8px 0 20px;
    gap: 0;
    background: var(--color-white);
    border-top: 1px solid rgba(130, 170, 170,0.2);
    box-shadow: 0 8px 24px rgba(28, 45, 45,0.12);
    z-index: 99;
  }

  .nav-links li {
    border-bottom: 1px solid rgba(130, 170, 170,0.12);
  }

  .nav-links .nav-link {
    display: block;
    padding: 13px 20px;
    font-size: 15px;
    border-bottom: none;
  }

  .nav-open .nav-links {
    display: flex;
  }
}