/* =========================================================
   PAT Motors — Header
   ========================================================= */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  height: 72px;
  display: flex;
  align-items: center;
  transition: background 0.35s ease, box-shadow 0.35s ease;
}

.site-header.scrolled {
  background: rgba(17,17,17,0.97);
  box-shadow: 0 1px 0 rgba(245,16,28,0.2);
  backdrop-filter: blur(8px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* --- Logo --- */
.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo__text {
  display: flex;
  flex-direction: column;
}

.site-logo__name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--blanc);
  letter-spacing: 0.05em;
  line-height: 1;
}

.site-logo__name span {
  color: var(--rouge);
}

.site-logo__tagline {
  font-family: var(--font-body);
  font-size: 0.5rem;
  letter-spacing: var(--tracking-caps-lg);
  text-transform: uppercase;
  color: var(--blanc-30);
  margin-top: 3px;
}

/* --- Navigation desktop --- */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-desktop a {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  position: relative;
  padding-bottom: 4px;
  transition: color 0.2s;
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--rouge);
  transition: width 0.3s ease;
}

.nav-desktop a:hover,
.nav-desktop a.current {
  color: var(--blanc);
}

.nav-desktop a:hover::after,
.nav-desktop a.current::after {
  width: 100%;
}

/* --- CTA Header --- */
.header-cta {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* --- Hamburger mobile --- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 1010;
}

.hamburger span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--blanc);
  transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* --- Menu mobile overlay --- */
.nav-mobile {
  position: fixed;
  inset: 0;
  background: rgba(8,8,8,0.98);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.nav-mobile.open {
  opacity: 1;
  pointer-events: all;
}

.nav-mobile a {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 300;
  color: var(--blanc);
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.nav-mobile a:hover {
  color: var(--rouge);
}

.nav-mobile__tel {
  margin-top: 40px;
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--rouge);
  letter-spacing: 0.05em;
}

@media (max-width: 1024px) {
  .nav-desktop { display: none; }
  .hamburger   { display: flex; }
  .site-header__inner { padding: 0 var(--gutter-md); }
}

@media (max-width: 640px) {
  .site-header__inner { padding: 0 var(--gutter-sm); }
  .site-header { height: 60px; }
  .site-logo__tagline { display: none; }
}