/* ═══════════════════════════════════════════════════════════
   Sagasyn site header — SINGLE source of truth
   Edit THIS file only. public/assets/site-header.css is a build copy
   (npm run header:sync). Do not restyle the nav in Tailwind, pillar.css,
   marketing.css, or any page stylesheet.
   ═══════════════════════════════════════════════════════════ */

:root {
  --site-header-bg: rgba(5, 10, 26, 0.7);
  --site-header-border: rgba(255, 255, 255, 0.1);
  --site-header-red: #ff3b30;
  --site-header-font: "Space Grotesk", system-ui, sans-serif;
  --site-header-link-size: 15px;
  --site-header-link-tracking: 0.12em;
  --site-header-link-weight: 900;
  --site-header-inner-max: 1600px;
  --site-header-pad-y: 1.25rem;
  --site-header-pad-x: 1.5rem;
  --site-header-pad-y-lg: 1.35rem;
  --site-header-nav-gap: 1.35rem;
  --site-header-nav-gap-xl: 1.65rem;
  --site-header-z: 100;
  --site-header-mobile-z: 99;
}

.site-header {
  border-bottom: 1px solid var(--site-header-border);
  background: var(--site-header-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  /* Isolate from page-level link / button resets */
  color: #fff;
}

.site-header--fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--site-header-z);
}

body[data-page-type="marketing"] {
  padding-top: 5.5rem;
}

.site-header__inner {
  max-width: var(--site-header-inner-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  padding: var(--site-header-pad-y) var(--site-header-pad-x);
}

.site-header__nav {
  display: none;
  align-items: center;
  flex-wrap: nowrap;
  gap: var(--site-header-nav-gap);
}

@media (min-width: 1024px) {
  .site-header__nav {
    display: flex;
  }

  .site-header__inner {
    padding: var(--site-header-pad-y-lg) var(--site-header-pad-x);
  }

  body[data-page-type="marketing"] {
    padding-top: 6.5rem;
  }
}

@media (min-width: 1280px) {
  .site-header__nav {
    gap: var(--site-header-nav-gap-xl);
  }
}

.site-header a,
.site-mobile-nav a {
  text-decoration: none !important;
}

.site-header__link {
  font-family: var(--site-header-font);
  font-size: var(--site-header-link-size);
  font-weight: var(--site-header-link-weight);
  text-transform: uppercase;
  letter-spacing: var(--site-header-link-tracking);
  color: #fff !important;
  line-height: 1.2;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color 0.2s;
}

/* Active = colour only — never size/weight/padding (no layout shift) */
.site-header__link:hover,
.site-header__link[aria-current="page"],
.site-header__link.is-active {
  color: var(--site-header-red) !important;
  text-decoration: none !important;
  font-weight: var(--site-header-link-weight);
  font-size: var(--site-header-link-size);
}

.site-header__link:focus-visible,
.header-cta:focus-visible,
.site-header__menu-btn:focus-visible,
.site-mobile-nav__close:focus-visible {
  outline: 2px solid var(--site-header-red);
  outline-offset: 3px;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.35rem;
  background: var(--site-header-red);
  color: #fff !important;
  font-family: var(--site-header-font);
  font-size: var(--site-header-link-size);
  font-weight: var(--site-header-link-weight);
  text-transform: uppercase;
  letter-spacing: var(--site-header-link-tracking);
  text-decoration: none !important;
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1.2;
  border-radius: 0;
  transition: background 0.2s, color 0.2s;
}

.header-cta:hover {
  background: #fff;
  color: var(--site-header-red) !important;
  text-decoration: none !important;
  filter: none;
}

.logo,
.logo-mark {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none !important;
  color: #fff !important;
  flex-shrink: 0;
}

.logo-mark:hover {
  text-decoration: none !important;
}

.logo-icon {
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
  display: block;
  transform-origin: 50% 50%;
}

/*
  Fan mark: still at rest. On hover/focus it spins and the SVG layers
  shift cyan → red tip. No always-on motion.
*/
@media (prefers-reduced-motion: no-preference) {
  .site-header .logo-mark:hover .logo-icon,
  .site-header .logo-mark:focus-visible .logo-icon {
    animation: sagasyn-fan-spin 0.28s linear infinite;
  }
}

@keyframes sagasyn-fan-spin {
  to {
    transform: rotate(360deg);
  }
}

/* Static header: cyan → red tip on hover (mirrors React SagasynLogo layers) */
.site-header .logo-fan {
  transition: opacity 0.15s linear;
}
.site-header .logo-fan--idle {
  opacity: 1;
}
.site-header .logo-fan--hot {
  opacity: 0;
  pointer-events: none;
}
.site-header .logo-mark:hover .logo-fan--idle,
.site-header .logo-mark:focus-visible .logo-fan--idle {
  opacity: 0;
}
.site-header .logo-mark:hover .logo-fan--hot,
.site-header .logo-mark:focus-visible .logo-fan--hot {
  opacity: 1;
}

.logo-word {
  font-family: var(--site-header-font);
  font-weight: 900;
  font-style: italic;
  text-transform: uppercase;
  letter-spacing: -0.05em;
  font-size: 1.5rem;
  line-height: 1;
  color: #fff !important;
}

.logo-word > span,
.logo > span:not(.logo-word) {
  color: var(--site-header-red) !important;
}

@media (min-width: 1024px) {
  .logo-icon {
    width: 4rem;
    height: 4rem;
  }

  .logo-mark {
    gap: 1.5rem;
  }

  .logo-word {
    font-size: 1.875rem;
  }
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.site-header__menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  min-width: 2.5rem;
  min-height: 2.5rem;
  padding: 0.55rem;
  border: 1px solid var(--site-header-border);
  background: transparent;
  cursor: pointer;
  border-radius: 0;
  color: #fff;
}

.site-header__menu-btn span {
  display: block;
  height: 2px;
  background: #fff;
  transition: transform 0.2s, opacity 0.2s;
}

.site-header__menu-btn[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header__menu-btn[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.site-header__menu-btn[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .site-header__menu-btn {
    display: none;
  }
}

.site-mobile-nav {
  position: fixed;
  inset: 0;
  top: 0;
  z-index: var(--site-header-mobile-z);
  background: rgba(5, 10, 26, 0.98);
  padding: 5.5rem 1.5rem 2rem;
  overflow-y: auto;
  color: #fff;
}

.site-mobile-nav[hidden] {
  display: none;
}

.site-mobile-nav__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.25rem;
  max-width: 420px;
  position: relative;
}

.site-mobile-nav__close {
  position: absolute;
  top: -3.25rem;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
}

.site-mobile-nav__close:hover {
  color: #fff;
}

.site-mobile-nav .site-header__link {
  font-size: 1.25rem;
  letter-spacing: 0.12em;
  font-style: italic;
  font-weight: var(--site-header-link-weight);
}

.site-mobile-nav__cta {
  margin-top: 1rem;
  width: 100%;
  text-align: center;
  padding: 1rem 1.5rem;
}

body.nav-open {
  overflow: hidden;
}