/* Site Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  min-height: var(--header-height);
  width: 100%;
  display: flex;
  align-items: center;
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--color-primary);
  padding: 8px 4px;
  transition: opacity var(--transition-fast);
}

.header-btn:hover {
  opacity: 0.7;
}

.header-btn svg {
  width: 18px;
  height: 18px;
  stroke-width: 1.5;
}

/* Center Logo */
.header-center {
  text-align: center;
}

.brand-logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 6px;
  color: var(--color-primary);
  text-transform: uppercase;
  display: inline-block;
  padding: 4px 8px;
}

.brand-logo:hover {
  opacity: 0.85;
}

/* Right Nav Actions */
.header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
}

.header-icon-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-primary);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

.header-icon-link:hover {
  background: var(--color-bg-surface);
}

.header-icon-link svg {
  width: 20px;
  height: 20px;
  stroke-width: 1.5;
}

.badge-count {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--color-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  width: 17px;
  height: 17px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0);
  transition: transform var(--transition-normal);
}

.badge-count.visible {
  transform: scale(1);
}

/* Main Content Area */
#app-main {
  flex: 1 0 auto;
  min-height: calc(100vh - var(--header-height) - 300px);
}

/* Site Footer */
.site-footer {
  background: #111113;
  color: #f0f0f2;
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-2xl);
  margin-top: var(--space-4xl);
  border-top: 1px solid #222226;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand h3 {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 5px;
  margin-bottom: var(--space-sm);
  color: #ffffff;
}

.footer-brand p {
  color: #99999f;
  font-size: 13px;
  line-height: 1.7;
  max-width: 320px;
  margin-bottom: var(--space-lg);
}

.footer-col h4 {
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: var(--space-lg);
  font-weight: 600;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  color: #99999f;
  font-size: 13px;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid #222226;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #77777f;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-bottom a {
  color: #99999f;
}

.footer-bottom a:hover {
  color: #ffffff;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .header-btn span {
    display: none;
  }
  .brand-logo {
    font-size: 18px;
    letter-spacing: 4px;
  }
}