/* Header styles for Urban Venue House */

.uvh-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 7, 12, 0.96), rgba(5, 7, 12, 0.88), rgba(5, 7, 12, 0.7) 65%, transparent 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.uvh-header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
  gap: var(--space-4);
}

/* Brand */
.uvh-header__brand-wrapper {
  display: flex;
  align-items: center;
}

.uvh-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.uvh-header__logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background:
    conic-gradient(from 180deg, rgba(184, 255, 59, 0.15), rgba(138, 59, 255, 0.6), rgba(184, 255, 59, 0.6));
  box-shadow: 0 0 0 1px rgba(247, 247, 251, 0.24), var(--shadow-neon-purple);
  position: relative;
  overflow: hidden;
}

.uvh-header__logo-mark::after {
  content: "UV";
  position: absolute;
  inset: 2px;
  border-radius: 12px;
  background: radial-gradient(circle at 20% 0, rgba(184, 255, 59, 0.3), transparent 55%),
              radial-gradient(circle at 80% 100%, rgba(138, 59, 255, 0.35), transparent 55%),
              #050608;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary-strong);
}

.uvh-header__brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.uvh-header__brand-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.uvh-header__brand-tagline {
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Nav */
.uvh-header__nav {
  display: flex;
}

.uvh-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.uvh-header__nav-link {
  position: relative;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-block: 0.4rem;
}

.uvh-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.2rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-base);
}

.uvh-header__nav-link:hover,
.uvh-header__nav-link:focus-visible {
  color: var(--color-neutral-50);
}

.uvh-header__nav-link:hover::after,
.uvh-header__nav-link:focus-visible::after {
  transform: scaleX(1);
}

.uvh-header__nav-item--highlight .uvh-header__nav-link {
  padding-inline: 1.3rem;
  padding-block: 0.55rem;
  border-radius: 999px;
  border: 1px solid rgba(184, 255, 59, 0.6);
  background: radial-gradient(circle at 0 0, rgba(184, 255, 59, 0.32), transparent 55%),
              linear-gradient(135deg, rgba(9, 11, 16, 0.9), rgba(9, 11, 18, 0.98));
  box-shadow: 0 0 0 1px rgba(184, 255, 59, 0.4);
  color: var(--color-neutral-50);
}

.uvh-header__nav-link--cta::after {
  display: none;
}

.uvh-header__nav-item--highlight .uvh-header__nav-link:hover,
.uvh-header__nav-item--highlight .uvh-header__nav-link:focus-visible {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-neon-lime);
}

/* Mobile toggle */
.uvh-header__toggle {
  display: none;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(164, 169, 183, 0.35);
  background: rgba(8, 10, 16, 0.9);
  color: var(--color-text-muted);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.uvh-header__toggle-box {
  position: relative;
  width: 22px;
  height: 16px;
}

.uvh-header__toggle-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: transform var(--transition-base), opacity var(--transition-base), top var(--transition-base), bottom var(--transition-base);
}

.uvh-header__toggle-line--top { top: 0; }
.uvh-header__toggle-line--middle { top: 7px; }
.uvh-header__toggle-line--bottom { bottom: 0; }

/* Open state */
.uvh-header--menu-open .uvh-header__toggle-line--top {
  top: 7px;
  transform: rotate(45deg);
}

.uvh-header--menu-open .uvh-header__toggle-line--middle {
  opacity: 0;
}

.uvh-header--menu-open .uvh-header__toggle-line--bottom {
  bottom: 7px;
  transform: rotate(-45deg);
}

/* Mobile menu layout */
@media (max-width: 950px) {
  .uvh-header__toggle {
    display: inline-flex;
  }

  .uvh-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 60px;
    max-height: 0;
    overflow: hidden;
    background: radial-gradient(circle at 0 0, rgba(184, 255, 59, 0.08), transparent 55%),
                radial-gradient(circle at 100% 100%, rgba(138, 59, 255, 0.12), transparent 55%),
                linear-gradient(180deg, rgba(5, 7, 12, 0.98), rgba(5, 7, 12, 0.98));
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: max-height var(--transition-slow);
  }

  .uvh-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-5) var(--space-4) var(--space-6);
    gap: var(--space-3);
  }

  .uvh-header__nav-item--highlight .uvh-header__nav-link {
    width: 100%;
    text-align: center;
    justify-content: center;
    display: inline-flex;
  }

  .uvh-header--menu-open .uvh-header__nav {
    max-height: 320px;
    padding: 20px;
  }
}

@media (max-width: 640px) {
  .uvh-header__brand-title {
    font-size: 0.95rem;
  }

  .uvh-header__brand-tagline {
    display: none;
  }
}

@media (min-width: 950px) {
  .uvh-header__nav {
    position: static;
    max-height: none !important;
  }
}