/* ===== Header ===== */
.s-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  background: var(--c-bg);
  background: color-mix(in srgb, var(--c-bg) 68%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-block-end: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.s-header.is-scrolled {
  background: color-mix(in srgb, var(--c-bg) 94%, transparent);
  border-block-end-color: var(--c-accent);
  box-shadow: 0 14px 34px -24px var(--c-accent);
}

.s-header__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: var(--header-h);
}

/* Logo / brand */
.s-header .brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(.92rem, 1.5vw, 1.15rem);
  line-height: 1.2;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-accent);
  text-decoration: none;
  white-space: nowrap;
  transition: color .25s ease, opacity .25s ease;
}

.s-header .brand:hover { color: var(--c-secondary); }

/* Navigation */
.s-header__nav {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 36px);
}

.s-header__list {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 32px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.s-header__list a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-body);
  font-size: .82rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-text);
  opacity: .82;
  text-decoration: none;
  transition: color .25s ease, opacity .25s ease;
}

.s-header__list a::after {
  content: "";
  position: absolute;
  inset-block-end: 11px;
  inset-inline-start: 0;
  width: 100%;
  height: 1px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .3s ease;
}

.s-header__list a:hover,
.s-header__list a:focus-visible {
  color: var(--c-accent);
  opacity: 1;
}

.s-header__list a:hover::after,
.s-header__list a:focus-visible::after { transform: scaleX(1); }

/* Gold call-to-action */
.s-header .s-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 24px;
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  border: 1px solid var(--c-accent);
  border-radius: var(--radius);
  background: var(--c-accent);
  color: var(--c-on-accent);
  text-decoration: none;
  transition: background .28s ease, color .28s ease, box-shadow .28s ease;
}

.s-header .s-header__cta:hover,
.s-header .s-header__cta:focus-visible {
  background: transparent;
  color: var(--c-accent);
  box-shadow: 0 0 0 1px var(--c-accent) inset;
}

/* Hamburger */
.s-header__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  margin-inline-start: auto;
  width: 44px;
  height: 44px;
  padding: 0;
  flex: 0 0 auto;
  cursor: pointer;
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--c-accent) 45%, transparent);
  border-radius: var(--radius);
}

.s-header__bars {
  position: relative;
  display: block;
  width: 20px;
  height: 1px;
  background: var(--c-accent);
  transition: background .22s ease;
}

.s-header__bars::before,
.s-header__bars::after {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  width: 20px;
  height: 1px;
  background: var(--c-accent);
  transition: transform .28s ease;
}

.s-header__bars::before { inset-block-start: -6px; }
.s-header__bars::after { inset-block-start: 6px; }

.s-header.is-open .s-header__bars { background: transparent; }
.s-header.is-open .s-header__bars::before { transform: translateY(6px) rotate(45deg); }
.s-header.is-open .s-header__bars::after { transform: translateY(-6px) rotate(-45deg); }

.s-header a:focus-visible,
.s-header button:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 4px;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .s-header__toggle { display: flex; }

  .s-header__nav {
    position: absolute;
    inset-block-start: 100%;
    inset-inline: 0;
    margin-inline-start: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 14px clamp(16px, 5vw, 28px) 24px;
    background: var(--c-surface);
    border-block-end: 1px solid color-mix(in srgb, var(--c-accent) 40%, transparent);
    box-shadow: var(--shadow-md);
  }

  .s-header.is-open .s-header__nav { display: flex; }

  .s-header__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .s-header__list a {
    min-height: 44px;
    padding-block: 12px;
    font-size: .95rem;
  }

  .s-header__list a::after { display: none; }

  .s-header .s-header__cta {
    margin-block-start: 12px;
    width: 100%;
  }
}

@media (max-width: 600px) {
  .s-header__inner { gap: 12px; }
  .s-header .brand { font-size: .84rem; letter-spacing: .12em; }
}