/* Header styles for UrbanStyleMotion */

.usm-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(245, 243, 239, 0.96), rgba(245, 243, 239, 0.9));
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.usm-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}

/* Brand */
.usm-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.usm-header__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.usm-header__logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: 1px solid rgba(11, 35, 64, 0.22);
  background: radial-gradient(circle at 30% 20%, #c1a27b 0, #0b2340 45%, #151820 100%);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.16);
}

.usm-header__logo-text {
  white-space: nowrap;
}

/* Primary navigation */
.usm-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

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

.usm-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-800);
  padding-block: 4px;
}

.usm-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}

.usm-header__nav-link:hover::after,
.usm-header__nav-link:focus-visible::after {
  width: 100%;
}

.usm-header__actions {
  display: flex;
  align-items: center;
}

.usm-header__action-btn {
  font-size: var(--font-size-xs);
  padding-inline: 18px;
}

/* Mobile toggle */
.usm-header__toggle {
  position: relative;
  width: 40px;
  height: 36px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(0, 0, 0, 0.1);
  display: none;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
}

.usm-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.usm-header__toggle-bar + .usm-header__toggle-bar {
  margin-top: 4px;
}

/* Toggle animation when open */
.usm-header__toggle[aria-expanded="true"] .usm-header__toggle-bar:first-child {
  transform: translateY(3px) rotate(45deg);
}

.usm-header__toggle[aria-expanded="true"] .usm-header__toggle-bar:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

/* Responsive behaviour */
@media (max-width: 960px) {
  .usm-header__toggle {
    display: inline-flex;
  }

  .usm-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    margin-top: 4px;
    padding: var(--space-4) var(--space-4) var(--space-6);
    background-color: rgba(245, 243, 239, 0.98);
    box-shadow: var(--shadow-soft);
    border-bottom-left-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transform: translateY(-8px);
    transition:
      max-height var(--transition-slow),
      opacity var(--transition-base),
      transform var(--transition-base),
      visibility 0s linear var(--transition-base);
  }

  .usm-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .usm-header__nav-link {
    font-size: var(--font-size-md);
  }

  .usm-header__actions {
    justify-content: flex-start;
  }

  .usm-header__nav--open {
    max-height: 420px;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition-delay: 0s;
  }
}

@media (max-width: 520px) {
  .usm-header__logo-text {
    font-size: 0.9rem;
  }
}