/* Progress */
.scroll-progress { position: fixed; top: 0; left: 0; z-index: 300; width: 100%; height: 2px; pointer-events: none; }
.scroll-progress__bar {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--stanel-orange), var(--stanel-green));
}

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: var(--header-h);
  display: flex; align-items: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.45s var(--ease), background 0.45s var(--ease), backdrop-filter 0.45s var(--ease);
}
.site-header.is-visible { opacity: 1; pointer-events: auto; }
.site-header.is-on-hero:not(.is-solid) {
  background: transparent;
  backdrop-filter: none;
  border-bottom: none;
}
.site-header.is-solid {
  background: rgba(250, 250, 248, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(90, 90, 90, 0.08);
}
.site-header.is-dark {
  background: rgba(18, 22, 20, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.site-header__logo img {
  height: clamp(32px, 4vw, 44px);
  width: auto;
  transition: filter 0.4s var(--ease), height 0.4s var(--ease);
}
/* Official logo is designed for dark backgrounds — never invert */
.site-header.is-on-hero .site-header__logo img,
.site-header.is-on-hero:not(.is-solid) .site-header__logo img {
  filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.35));
}
.site-header.is-dark .site-header__logo img {
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.25));
}
.site-header.is-solid:not(.is-dark) .site-header__logo img { filter: none; }

.site-header.is-on-hero .pill-cta {
  background: var(--stanel-orange);
  border: none;
  box-shadow: 0 4px 20px rgba(251, 112, 0, 0.35);
}
.site-header.is-on-hero .pill-cta:hover {
  background: #ff8219;
  box-shadow: 0 6px 24px rgba(251, 112, 0, 0.45);
}
.site-header.is-on-hero .site-nav a {
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.35);
}
.site-header.is-on-hero .site-nav a:hover {
  color: var(--stanel-green-light);
  opacity: 1;
}

.site-nav { display: none; align-items: center; gap: 2rem; }
.site-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.3s, opacity 0.3s;
  background: linear-gradient(var(--stanel-green), var(--stanel-green)) no-repeat right bottom / 0 1px;
  padding-bottom: 2px;
}
.site-nav a:hover {
  opacity: 1;
  color: var(--stanel-green-dark);
  background-size: 100% 1px;
  background-position-x: left;
}
.site-header.is-dark .site-nav a:hover,
.site-header.is-on-hero .site-nav a:hover { color: var(--stanel-green-light); }
.site-header.is-dark .site-nav a,
.site-header:not(.is-solid) .site-nav a { color: var(--stanel-white); }
.site-header.is-solid:not(.is-dark) .site-nav a { color: var(--stanel-charcoal-deep); }

.pill-cta {
  display: inline-flex; align-items: center;
  padding: 0.55rem 1.35rem; border-radius: 999px;
  font-size: 0.8125rem; font-weight: 600;
  background: var(--stanel-orange); color: var(--stanel-white);
  transition: transform 0.35s var(--ease), background 0.35s var(--ease);
}
.pill-cta:hover { background: #e56500; transform: translateY(-1px); }
.site-header.is-dark .pill-cta { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); }
.site-header.is-dark:not(.is-on-hero) .pill-cta { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); }
.site-header.is-dark .pill-cta:hover { background: rgba(255,255,255,0.2); }

.menu-toggle { display: flex; flex-direction: column; gap: 5px; width: 2.25rem; z-index: 210; }
.menu-toggle span { display: block; height: 1.5px; background: var(--stanel-white); transition: transform 0.35s var(--ease), opacity 0.35s; }
.site-header.is-solid:not(.is-dark) .menu-toggle span { background: var(--stanel-charcoal-deep); }
.menu-toggle.is-active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.menu-toggle.is-active span:nth-child(2) { opacity: 0; }
.menu-toggle.is-active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 0; z-index: 205;
  background: var(--stanel-charcoal-deep);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.75rem;
  opacity: 0; pointer-events: none; transition: opacity 0.45s var(--ease);
}
.mobile-nav.is-open { opacity: 1; pointer-events: auto; }
.mobile-nav a { font-family: var(--font-display); font-size: 2rem; color: var(--stanel-white); }

@media (min-width: 1024px) {
  .site-nav { display: flex; }
  .menu-toggle { display: none; }
}