/* ============================================================
   header.css — KRITA Renewables
   Premium sticky nav: float pill → solid on scroll
   ============================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 200;
  padding: 0 var(--sp-8);
  background: #ffffff;
  border-bottom: 1px solid rgba(35, 18, 60, 0.08);
  transition: all .4s var(--ease);
  height: 115px;
  display: flex;
  align-items: center;
}

.header.scrolled {
  height: 90px;
  box-shadow: 0 4px 20px rgba(35, 18, 60, 0.05);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
}

/* Nav container */
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
}

/* Logo — crisp fit to look institutional-grade and polished */
.logo {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-height: auto;
}

.logo-icon {
  width: auto;
  height: 200px;
  max-width: 350px;
  object-fit: contain;
  transition: all 0.3s var(--ease);
  image-rendering: -webkit-optimize-contrast;
}

.header.scrolled .logo-icon { height: 75px; }
.logo:hover .logo-icon { transform: scale(1.02); }
.header.scrolled .logo { color: var(--clr-secondary); }

/* Nav links — centered perfectly in the container using margin: 0 auto; */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  margin: 0 auto;
}

.nav-link {
  color: var(--clr-secondary);
  font-weight: 600;
  font-size: .9rem;
  letter-spacing: .01em;
  position: relative;
  padding: 4px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -2px;
  left: 0;
  background: var(--clr-primary);
  border-radius: 2px;
  transition: width .3s var(--ease);
}

.nav-link:hover,
.nav-link.active { color: var(--clr-primary); }

.nav-link:hover::after,
.nav-link.active::after { width: 100%; }

/* CTA button area */
.header-cta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--sp-4);
}

.nav-close {
  display: none;
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-secondary);
  border-radius: 2px;
  transition: all .3s var(--ease);
}