/* Header styles for Styleverto */

.sv-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: radial-gradient(circle at top left, rgba(199,168,122,0.12), transparent 60%),
              rgba(13,17,23,0.92);
  border-bottom: 1px solid var(--color-border-subtle);
}

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

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

.sv-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
}

.sv-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(199,168,122,0.5);
  background: radial-gradient(circle at 20% 0, rgba(199,168,122,0.25), transparent 60%),
              rgba(18,24,38,0.95);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
}

.sv-header__logo-text {
  font-family: var(--font-serif-display);
  font-size: 1.1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* Navigation */
.sv-header__nav {
  margin-left: auto;
}

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

.sv-header__nav-link {
  position: relative;
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-block: 0.25rem;
}

.sv-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(199,168,122,0.2), rgba(199,168,122,0.9));
  transition: width var(--transition-normal);
}

.sv-header__nav-link:hover,
.sv-header__nav-link:focus-visible {
  color: var(--color-text);
}

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

/* Actions */
.sv-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.sv-header__action-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid rgba(247,243,235,0.12);
  background-color: rgba(18,24,38,0.9);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: background-color var(--transition-normal),
              color var(--transition-normal),
              border-color var(--transition-normal),
              transform var(--transition-fast),
              box-shadow var(--transition-normal);
}

.sv-header__action-link--search {
  display: none;
}

.sv-header__action-link:hover,
.sv-header__action-link:focus-visible {
  border-color: rgba(199,168,122,0.9);
  color: var(--color-primary);
  box-shadow: 0 10px 28px rgba(0,0,0,0.36);
  transform: translateY(-1px);
}

/* Mobile toggle */
.sv-header__toggle {
  display: none;
  position: relative;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid rgba(247,243,235,0.14);
  background-color: rgba(18,24,38,0.95);
  padding: 0;
}

.sv-header__toggle-bar {
  position: absolute;
  left: 50%;
  width: 14px;
  height: 1px;
  border-radius: 99px;
  background-color: var(--color-text);
  transform: translateX(-50%);
  transition: transform var(--transition-normal),
              opacity var(--transition-fast);
}

.sv-header__toggle-bar:first-child {
  top: 45%;
}

.sv-header__toggle-bar:last-child {
  top: 58%;
}

.sv-header__toggle[aria-expanded="true"] .sv-header__toggle-bar:first-child {
  transform: translate(-50%, 0) rotate(40deg);
}

.sv-header__toggle[aria-expanded="true"] .sv-header__toggle-bar:last-child {
  transform: translate(-50%, 0) rotate(-40deg);
}

/* Mobile layout */
@media (max-width: 900px) {
  .sv-header__inner {
    padding-block: var(--space-3);
  }

  .sv-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 0;
    background: rgba(11,14,22,0.98);
    border-bottom: 1px solid var(--color-border-subtle);
    transform: translateY(-100%);
    transition: transform var(--transition-normal);
  }

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

  .sv-header__nav-link {
    font-size: 0.9rem;
  }

  .sv-header__toggle {
    display: inline-flex;
  }

  .sv-header__nav--open {
    transform: translateY(60px);
  }

  .sv-header__actions {
    gap: var(--space-1);
  }

  .sv-header__action-link--search {
    display: inline-flex;
  }
}

@media (max-width: 600px) {
  .sv-header__logo-text {
    font-size: 0.95rem;
  }

  .sv-header__logo-mark {
    width: 28px;
    height: 28px;
    font-size: 0.7rem;
  }
}