/* public/styles/header.css */

/*
  The Accountability Report Podcast
  Header and primary navigation styles.
*/

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(208, 216, 225, 0.95);
  background: rgba(252, 250, 244, 0.98);
  backdrop-filter: blur(18px);
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.65rem;
  gap: 1.5rem;
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-primary);
  text-decoration: none;
}

.site-header__brand:hover,
.site-header__brand:focus {
  text-decoration: none;
}

.site-header__brand-mark {
  display: inline-grid;
  flex: 0 0 auto;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  border-radius: 0.18rem;
  background: var(--color-primary);
  color: var(--color-primary-foreground);
  box-shadow: none;
}

.site-header__brand-icon {
  width: 1.15rem;
  height: 1.15rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-header__brand-text {
  display: block;
  max-width: clamp(13rem, 22vw, 22rem);
  overflow: hidden;
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: clamp(0.95rem, 1.2vw, 1.05rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.12;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-header__nav {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(0.85rem, 1.4vw, 1.45rem);
}

.site-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 2.4rem;
  color: var(--color-charcoal);
  font-size: clamp(0.8rem, 0.92vw, 0.94rem);
  font-weight: 700;
  line-height: 1;
  padding: 0.2rem 0;
  text-decoration: none;
  transition:
    color var(--transition-standard),
    opacity var(--transition-standard);
  white-space: nowrap;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0.18rem;
  left: 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: center;
  background: var(--color-accent);
  transition: transform var(--transition-standard);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus,
.site-header__nav-link:focus-visible {
  color: var(--color-primary);
  text-decoration: none;
}

.site-header__nav-link:hover::after,
.site-header__nav-link:focus::after,
.site-header__nav-link:focus-visible::after,
.site-header__nav-link.is-active::after,
.site-header__nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-header__nav-link.is-active,
.site-header__nav-link[aria-current="page"] {
  color: var(--color-primary);
}

.site-header__menu-button {
  display: none;
  flex: 0 0 auto;
  width: 2.85rem;
  height: 2.85rem;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.28rem;
  border: 1px solid var(--color-border);
  border-radius: 0.08rem;
  background: var(--color-card);
  color: var(--color-primary);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}

.site-header__menu-line {
  display: block;
  width: 1.15rem;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition:
    transform var(--transition-standard),
    opacity var(--transition-standard);
}

.site-header__menu-button[aria-expanded="true"] .site-header__menu-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.site-header__menu-button[aria-expanded="true"] .site-header__menu-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 1120px) {
  .site-header__brand-text {
    max-width: 15rem;
  }

  .site-header__nav {
    gap: 0.82rem;
  }

  .site-header__nav-link {
    font-size: 0.8rem;
  }
}

@media (max-width: 980px) {
  .site-header__inner {
    min-height: 4.25rem;
  }

  .site-header__brand-text {
    max-width: min(62vw, 24rem);
    font-size: 0.95rem;
  }

  .site-header__menu-button {
    display: inline-flex;
  }

  .site-header__nav {
    position: absolute;
    top: calc(100% + 0.65rem);
    right: 1rem;
    left: 1rem;
    display: none;
    max-height: min(72vh, 34rem);
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border: 1px solid var(--color-border);
    border-radius: 0;
    background: var(--color-card);
    padding: 0;
    box-shadow: var(--shadow-card);
  }

  .site-header__nav.is-open {
    display: flex;
  }

  .site-header__nav-link {
    width: 100%;
    min-height: 3rem;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    color: var(--color-charcoal);
    font-size: 0.9rem;
    padding: 0.95rem 1rem;
  }

  .site-header__nav-link:last-child {
    border-bottom: 0;
  }

  .site-header__nav-link::after {
    right: auto;
    bottom: 0.55rem;
    left: 1rem;
    width: 3.25rem;
  }

  .site-header__nav-link:hover,
  .site-header__nav-link:focus,
  .site-header__nav-link:focus-visible,
  .site-header__nav-link.is-active,
  .site-header__nav-link[aria-current="page"] {
    background: rgba(198, 158, 88, 0.12);
    color: var(--color-primary);
  }
}

@media (max-width: 520px) {
  .site-header__inner {
    gap: 0.85rem;
  }

  .site-header__brand {
    gap: 0.6rem;
  }

  .site-header__brand-mark {
    width: 2.1rem;
    height: 2.1rem;
  }

  .site-header__brand-icon {
    width: 1rem;
    height: 1rem;
  }

  .site-header__brand-text {
    max-width: 13rem;
    font-size: 0.88rem;
  }

  .site-header__nav {
    right: 0;
    left: 0;
  }
}

@media (max-width: 380px) {
  .site-header__brand-text {
    max-width: 10.8rem;
  }

  .site-header__menu-button {
    width: 2.65rem;
    height: 2.65rem;
  }
}