/* ============================================
   SUMEI DAO — Header & Navigation
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: var(--z-header);
  transition: all var(--duration-normal) var(--ease-out);
}

.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 5, 5, 0.88) 0%, rgba(10, 10, 10, 0.6) 70%, rgba(10, 10, 10, 0.2) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all var(--duration-normal) var(--ease-out);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.site-header.scrolled::before {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(201, 169, 110, 0.1);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 var(--container-padding);
  max-width: 100%;
  gap: var(--space-4);
}

/* ── Logo ── */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: 2;
}

.logo-icon {
  width: 36px;
  height: 36px;
  position: relative;
}

.logo-icon svg {
  width: 100%;
  height: 100%;
}

.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-primary);
}

.logo-text span {
  color: var(--color-accent-gold);
}

/* ── Navigation ── */
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
  min-width: 0;
}

.nav-link {
  padding: var(--space-2) var(--space-2);
  font-size: 0.8rem;
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1px;
  background: var(--color-accent-gold);
  transition: all var(--duration-normal) var(--ease-out);
  transform: translateX(-50%);
}

.nav-link:hover {
  color: var(--color-text-primary);
}

.nav-link:hover::after {
  width: 60%;
}

.nav-link.active {
  color: var(--color-accent-gold);
}

.nav-link.active::after {
  width: 60%;
}

/* ── Header Actions ── */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: 2;
  flex-shrink: 0;
}

.lang-switch {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-out);
}

.lang-switch:hover {
  color: var(--color-accent-gold);
}

/* ── Mobile Menu Toggle ── */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  z-index: 2;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-text-primary);
  transition: all var(--duration-normal) var(--ease-out);
  transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ── Mobile Navigation ── */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-bg-primary);
  z-index: var(--z-overlay);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav .nav-link {
  font-size: var(--text-2xl);
  font-family: var(--font-display);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .mobile-nav {
    display: flex;
  }
  /* Hide search text on tablets and mobile to save space */
  .search-trigger span[data-i18n],
  .search-trigger kbd {
    display: none;
  }
  /* Hide buy button on mobile header */
  .header-actions .btn--outline {
    display: none !important;
  }
  .site-header {
    height: 60px;
  }
  .logo-icon {
    width: 30px;
    height: 30px;
  }
  .logo-text {
    font-size: var(--text-lg);
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 var(--space-4);
    justify-content: space-between;
  }
  .logo-text {
    display: none; /* Hide logo text on very small screens, show icon only */
  }
  .header-actions {
    margin-left: auto;
    gap: var(--space-3);
  }
  .lang-switch {
    font-size: 0.65rem;
  }
  /* User drop down / auth button optimization */
  .auth-login-btn span,
  #header-user-name {
    display: none;
  }
  .auth-login-btn,
  .user-dropdown-trigger {
    padding: 0;
    gap: 0;
    background: transparent !important;
    border: none !important;
  }
  .user-msg-badge {
    top: -5px;
    right: -5px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}


/* ============================================
   Footer
   ============================================ */

.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-neutral-800);
  padding: var(--space-section) 0 var(--space-12);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-16);
  margin-bottom: var(--space-16);
}

.footer-brand .logo {
  margin-bottom: var(--space-6);
}

.footer-brand p {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-neutral-700);
  border-radius: var(--radius-full);
  color: var(--color-text-tertiary);
  transition: all var(--duration-normal) var(--ease-out);
}

.footer-social a:hover {
  border-color: var(--color-accent-gold);
  color: var(--color-accent-gold);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  transition: all var(--duration-fast) var(--ease-out);
}

.footer-col a:hover {
  color: var(--color-accent-gold);
  padding-left: var(--space-2);
}

.footer-newsletter {
  margin-top: var(--space-6);
}

.newsletter-form {
  display: flex;
  gap: var(--space-2);
}

.newsletter-form input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-neutral-700);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: var(--text-sm);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.newsletter-form input::placeholder {
  color: var(--color-text-tertiary);
}

.newsletter-form input:focus {
  border-color: var(--color-accent-gold);
}

.newsletter-form button {
  padding: var(--space-3) var(--space-5);
  background: var(--color-accent-gold);
  color: var(--color-bg-primary);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  transition: all var(--duration-fast) var(--ease-out);
}

.newsletter-form button:hover {
  background: var(--color-accent-gold-light);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-neutral-800);
}

.footer-bottom p {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

.footer-legal a {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-newsletter {
    grid-column: 1 / -1;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }
  .footer-legal {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    row-gap: var(--space-10);
    column-gap: var(--space-4);
    text-align: left;
  }
  .footer-brand .logo,
  .footer-social,
  .footer-col ul {
    justify-content: flex-start;
    align-items: flex-start;
  }
  .footer-brand p {
    margin: 0;
  }
  .newsletter-form {
    flex-direction: row;
  }
  .newsletter-form button {
    padding: var(--space-3) var(--space-4);
  }
}