/* ============================================================
   HEADER — sticky navbar
   Namespace: .sec-header
   ============================================================ */

.sec-header {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 1220px;
  z-index: var(--z-header);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(226,230,234,.6);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: top var(--t-base), width var(--t-base),
              box-shadow var(--t-base), background var(--t-base);
}

.sec-header.is-scrolled {
  top: 8px;
  width: calc(100% - 24px);
  background: rgba(255,255,255,.97);
  box-shadow: var(--shadow-lg);
}

.sec-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
  height: 64px;
  padding-inline: var(--sp-6);
}

/* ---- Logo ---- */
.sec-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.sec-header__logo img,
.sec-header__logo svg {
  height: 44px;
  width: auto;
}

/* ---- Desktop nav ---- */
.sec-header__nav { display: none; }

@media (min-width: 1024px) {
  .sec-header__nav {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
  }
}

.sec-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.sec-header__nav-link {
  display: block;
  padding: var(--sp-2) var(--sp-4);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--c-text);
  border-radius: var(--r-md);
  transition: color var(--t-fast), background var(--t-fast);
  white-space: nowrap;
}
.sec-header__nav-link:hover { color: var(--c-blue); background: rgba(9,95,168,.06); }

/* ---- CTA ---- */
.sec-header__cta { display: none; }
@media (min-width: 1024px) {
  .sec-header__cta { display: inline-flex; }
}

/* ---- Hamburger ---- */
.sec-header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: var(--sp-2);
  border-radius: var(--r-md);
  transition: background var(--t-fast);
}
.sec-header__hamburger:hover { background: var(--c-bg-alt); }

.sec-header__hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-base);
}

.sec-header__hamburger[aria-expanded="true"] .sec-header__hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.sec-header__hamburger[aria-expanded="true"] .sec-header__hamburger-bar:nth-child(2) {
  opacity: 0;
}
.sec-header__hamburger[aria-expanded="true"] .sec-header__hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .sec-header__hamburger { display: none; }
}

/* ---- Mobile menu overlay ---- */
.sec-header__mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--z-mobile);
  background: rgba(11,42,74,.85);
}
.sec-header__mobile-menu.is-open { display: block; }

.sec-header__mobile-panel {
  position: absolute;
  top: 0; right: 0;
  width: min(320px, 85vw);
  height: 100%;
  background: var(--c-white);
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  box-shadow: var(--shadow-lg);
  animation: mobile-slide-in var(--t-slow) ease;
}

@keyframes mobile-slide-in {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

.sec-header__mobile-close {
  align-self: flex-end;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--r-md);
  color: var(--c-text);
  font-size: 1.5rem;
  transition: background var(--t-fast);
}
.sec-header__mobile-close:hover { background: var(--c-bg-alt); }

.sec-header__mobile-list { display: flex; flex-direction: column; gap: var(--sp-1); }

.sec-header__mobile-link {
  display: block;
  padding: var(--sp-3) var(--sp-4);
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--c-text);
  border-radius: var(--r-md);
  transition: color var(--t-fast), background var(--t-fast);
}
.sec-header__mobile-link:hover { color: var(--c-blue); background: rgba(9,95,168,.06); }

.sec-header__mobile-cta { margin-top: auto; }
.sec-header__mobile-cta .btn { width: 100%; justify-content: center; }

/* Nastro sotto l'header */
.sec-header__nastro { height: 4px; }