.site-header { position: sticky; top: 0; z-index: 20; background: hsl(var(--background) / 0.92); backdrop-filter: blur(16px); border-bottom: 1px solid hsl(var(--border)); }
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-top: env(safe-area-inset-top); }
.brand { display: inline-flex; align-items: center; gap: 0.75rem; font-weight: 600; letter-spacing: 0.08em; }
.brand-logo, .login-logo { width: 48px; height: 48px; border-radius: 999px; object-fit: cover; background: hsl(var(--secondary)); border: 1px solid hsl(var(--border)); }
.nav-toggle, .theme-toggle { min-height: 44px; border-radius: calc(var(--radius) - 2px); border: 1px solid hsl(var(--border)); background: hsl(var(--card)); color: hsl(var(--foreground)); padding: 0.5rem 1rem; cursor: pointer; }
.nav-menu { display: none; position: absolute; left: 1rem; right: 1rem; top: calc(72px + env(safe-area-inset-top)); padding: 1rem; background: hsl(var(--popover)); border: 1px solid hsl(var(--border)); border-radius: var(--radius); box-shadow: var(--shadow-md); }
.nav-menu.open, .nav-menu.always { display: grid; gap: 0.5rem; }
.nav-menu a { min-height: 44px; display: flex; align-items: center; border-radius: calc(var(--radius) - 2px); padding: 0.5rem 0.75rem; color: hsl(var(--muted-foreground)); font-weight: 500; }
.nav-menu a:hover { background: hsl(var(--muted)); color: hsl(var(--foreground)); }
.cart-count { display: inline-flex; min-width: 24px; height: 24px; align-items: center; justify-content: center; border-radius: 999px; margin-left: 0.5rem; background: hsl(var(--primary)); color: hsl(var(--primary-foreground)); font-size: 0.75rem; }
.hero { padding-block: 3rem; display: grid; gap: 2rem; align-items: center; }
.hero-copy { display: grid; gap: 1.5rem; max-width: 42rem; }
.hero-text { font-size: 1.125rem; line-height: 1.75rem; color: hsl(var(--muted-foreground)); max-width: 42rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero-panel { min-height: 28rem; border-radius: calc(var(--radius) + 4px); background: radial-gradient(circle at 20% 20%, hsl(var(--accent)), transparent 38%), linear-gradient(135deg, hsl(var(--secondary)), hsl(var(--card))); border: 1px solid hsl(var(--border)); box-shadow: var(--shadow-elegant); padding: 1rem; display: grid; align-content: end; gap: 1rem; overflow: hidden; position: relative; }
.hero-panel::before { content: ""; position: absolute; inset: 12% 18% auto auto; width: 44%; aspect-ratio: 1 / 1.35; border: 1px solid hsl(var(--primary) / 0.2); border-radius: 999px 999px calc(var(--radius) + 4px) calc(var(--radius) + 4px); background: linear-gradient(180deg, hsl(var(--card) / 0.9), hsl(var(--accent) / 0.6)); }
.hero-card { position: relative; z-index: 1; border-radius: var(--radius); background: hsl(var(--card) / 0.86); border: 1px solid hsl(var(--border)); box-shadow: var(--shadow-sm); padding: 1rem; display: grid; gap: 0.5rem; backdrop-filter: blur(10px); }
.hero-card span { color: hsl(var(--muted-foreground)); font-size: 0.875rem; }
.hero-card-main strong { font-size: 1.25rem; line-height: 1.75rem; }
.section-heading { display: grid; gap: 1rem; max-width: 48rem; margin-bottom: 2rem; }
.section-heading p:not(.eyebrow) { color: hsl(var(--muted-foreground)); }
.section-heading.compact { margin-bottom: 1.5rem; }
.category-grid { display: grid; gap: 1rem; }
.category-card { min-height: 13rem; display: flex; flex-direction: column; justify-content: space-between; border-radius: calc(var(--radius) + 4px); padding: 1.5rem; background: hsl(var(--card)); border: 1px solid hsl(var(--border)); box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition); }
.category-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.category-card span { font-size: 0.875rem; color: hsl(var(--muted-foreground)); text-transform: uppercase; letter-spacing: 0.08em; }
.category-card strong { max-width: 18rem; font-size: 1.25rem; line-height: 1.75rem; }
.footer { border-top: 1px solid hsl(var(--border)); padding-block: 2rem; color: hsl(var(--muted-foreground)); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; }
.footer a { font-weight: 500; color: hsl(var(--foreground)); }
@media (min-width: 768px) { .nav-toggle { display: none; } .nav-menu, .nav-menu.open, .nav-menu.always { position: static; display: flex; align-items: center; gap: 0.25rem; padding: 0; background: transparent; border: 0; box-shadow: none; } .hero { grid-template-columns: 1fr 0.9fr; padding-block: 6rem; } .category-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .hero { padding-block: 8rem; } }