/* ---------- Header ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 0 clamp(20px, 4.5vw, 60px);
  background: transparent;
  border-bottom: 1px solid transparent;
  backdrop-filter: none;
  transition: background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease;
}

.site-header.is-scrolled {
  background: rgba(12, 18, 22, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

/* Header e acum position:fixed (nu ocupă spațiu în flow, ca fotografia din
   hero să continue în spatele lui) — secțiunile țintă ale navigării trebuie
   compensate, altfel titlul lor ar fi ascuns sub bara fixă la scroll-to. */
main#top,
section[id] {
  scroll-margin-top: 66px;
}

.brand {
  display: flex;
  flex-direction: row;
  align-items: center;
  align-self: flex-start;
  gap: 16px;
  min-width: 0;
  text-align: left;
  padding-top: clamp(4px, 0.8vw, 8px);
}

.brand-mark {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-copy {
  display: grid;
  justify-items: start;
  gap: 0;
  min-width: 0;
}

.brand-copy strong {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--text-primary);
}

.brand-copy small {
  margin-top: -1px;
  color: var(--cyan);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 36px;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 6px;
  width: 34px;
  height: 34px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--text-primary);
  transition: transform 0.25s ease, opacity 0.25s ease, width 0.25s ease;
}

.menu-toggle span:last-child {
  width: 65%;
}

.site-header.is-menu-open .menu-toggle span {
  width: 100%;
}

.site-header.is-menu-open .menu-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header.is-menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-menu-open .menu-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.top-nav,
.header-actions {
  display: flex;
  align-items: center;
  gap: 22px;
}

.top-nav a {
  position: relative;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 2px;
}

.top-nav a:hover {
  color: var(--text-primary);
}

.top-nav a.is-current {
  color: var(--text-primary);
}

.top-nav a.is-current::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 1px;
  background: var(--cyan);
}

.header-actions {
  gap: 14px;
}

.lang-select {
  display: flex;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.lang-option {
  min-width: 42px;
  min-height: 40px;
  padding: 0 8px;
  border: none;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.lang-option:last-child {
  border-right: none;
}

.lang-option.is-active {
  background: var(--surface-elevated);
  color: var(--text-primary);
}

/* Selector compus (.btn.header-cta), nu doar .header-cta — ca să câștige garantat
   în fața regulii .btn{display:inline-flex} de mai jos, indiferent de ordinea din fișier
   (la specificitate egală câștigă ultima regulă declarată, nu intenția autorului). */
.btn.header-cta {
  display: none;
}

@media (min-width: 900px) {
  .btn.header-cta {
    display: inline-flex;
  }
}