:root{--primary:#111827;--text:#111827;--text-light:#6b7280;--bg:#fff;--surface:#f9fafb;--card:#fff;--border:#e5e7eb;--radius:20px;--shadow:0 4px 24px rgba(0,0,0,.06);--shadow-hover:0 12px 32px rgba(0,0,0,.12)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:Inter,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}.container{margin:0 auto;max-width:1200px;padding:0 1.5rem}.topbar{backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background:#ffffffe6;border-bottom:1px solid var(--border);gap:1.5rem;justify-content:space-between;padding:1rem 1.5rem;position:sticky;top:0;z-index:50}.brand,.topbar{align-items:center;display:flex}.brand{font-weight:700;gap:.75rem}.logo{background:var(--primary);border-radius:10px;color:#fff;display:grid;font-size:1rem;height:38px;place-items:center;width:38px}.brand-name{font-size:1.4rem}.nav{align-items:center;display:flex;gap:.25rem;margin-left:auto}.nav-link{border-radius:999px;color:var(--text-light);font-size:.95rem;font-weight:500;padding:.5rem .9rem;transition:color .2s,background .2s}.nav-link.active,.nav-link:hover{background:var(--surface);color:var(--text)}.menu-toggle{background:none;border:none;color:var(--text);cursor:pointer;display:none;font-size:1.5rem}.btn{align-items:center;border:none;border-radius:999px;cursor:pointer;display:inline-flex;font-size:.95rem;font-weight:600;justify-content:center;padding:.6rem 1.25rem;transition:transform .2s,box-shadow .2s}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--primary);box-shadow:0 4px 16px #0000001f;color:#fff}.btn-ghost{background:var(--surface);border:1px solid var(--border);color:var(--text)}.btn-lg{font-size:1rem;padding:.85rem 1.75rem}.hero{align-items:center;background:var(--bg);display:flex;justify-content:center;min-height:80vh;padding:4rem 1.5rem;text-align:center}.hero-content{max-width:720px}.eyebrow{color:var(--text-light);display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.1em;margin-bottom:1rem;text-transform:uppercase}.hero h1{font-size:3.5rem;font-weight:700;letter-spacing:-.03em;line-height:1.1;margin-bottom:1.25rem}.hero-text{color:var(--text-light);font-size:1.15rem;margin-bottom:2rem;margin-left:auto;margin-right:auto;max-width:560px}.hero-actions{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}.section{padding:5rem 0}.section-eyebrow{color:var(--text-light);font-size:.8rem;font-weight:700;letter-spacing:.1em;margin-bottom:.75rem;text-transform:uppercase}.section-title{font-size:2.25rem;font-weight:700;letter-spacing:-.02em;margin-bottom:2.5rem}.categories{background:var(--surface)}.category-grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}.category-card{align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;flex-direction:column;gap:.75rem;padding:1.5rem;transition:transform .2s,box-shadow .2s,border-color .2s,background .2s}.category-card.active,.category-card:hover{background:#fff;border-color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-4px)}.category-icon{font-size:2rem}.category-card h3{font-size:1.1rem;font-weight:600}.category-card p{color:var(--text-light);font-size:.85rem}.listing-grid{display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}.listing-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;flex-direction:column;height:340px;overflow:hidden;transition:transform .2s,box-shadow .2s}.listing-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px)}.listing-thumb{background:var(--surface);display:grid;flex-shrink:0;font-size:3.5rem;height:50%;overflow:hidden;place-items:center}.listing-thumb img{height:100%;-o-object-fit:cover;object-fit:cover;width:100%}.listing-body{display:flex;flex:1;flex-direction:column;overflow:hidden;padding:1.25rem}.tag{background:var(--surface);border-radius:999px;color:var(--text-light);display:inline-block;font-size:.7rem;font-weight:700;margin-bottom:.5rem;padding:.2rem .55rem}.listing-card h3{display:-webkit-box;font-size:1.1rem;font-weight:600;-webkit-line-clamp:2;margin-bottom:.25rem;-webkit-box-orient:vertical;overflow:hidden;word-break:break-word}.price{font-size:1.15rem;font-weight:700;margin-bottom:.25rem}.location{color:var(--text-light);font-size:.85rem}.sellers{background:var(--surface)}.seller-grid{display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}.seller-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:2rem;text-align:center;transition:transform .2s,box-shadow .2s}.seller-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}.seller-avatar{background:var(--primary);border-radius:50%;color:#fff;display:grid;font-size:1.5rem;font-weight:700;height:72px;margin:0 auto 1rem;place-items:center;width:72px}.seller-card h3{font-size:1.1rem;margin-bottom:.25rem}.seller-card p{color:var(--text-light);font-size:.9rem}.stats{background:var(--text);color:#fff}.stats-grid{display:flex;flex-wrap:wrap;gap:2rem;justify-content:space-around;text-align:center}.stat{display:flex;flex-direction:column;gap:.25rem}.stat-number{font-size:2.5rem;font-weight:700}.stat-label{font-size:.9rem;opacity:.7}.newsletter{background:var(--surface)}.newsletter-box{align-items:center;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;gap:2rem;justify-content:space-between;padding:2.5rem}.newsletter-content{max-width:420px}.newsletter-content h2{font-size:1.75rem;margin-bottom:.5rem}.newsletter-content p{color:var(--text-light)}.newsletter-form{display:flex;flex:1;gap:.75rem;max-width:420px}.newsletter-form input{border:1px solid var(--border);border-radius:999px;flex:1;font-size:.95rem;outline:none;padding:.75rem 1rem}.footer{border-top:1px solid var(--border);padding:4rem 0 1.5rem}.footer-grid{display:grid;gap:2rem;grid-template-columns:2fr 1fr 1fr 1fr;margin-bottom:3rem}.footer-brand p{color:var(--text-light);margin-top:1rem;max-width:280px}.footer-links h4{font-size:1rem;margin-bottom:1rem}.footer-links a{color:var(--text-light);display:block;font-size:.95rem;margin-bottom:.5rem}.footer-links a:hover{color:var(--text)}.footer-bottom{border-top:1px solid var(--border);color:var(--text-light);font-size:.85rem;padding-top:1.5rem;text-align:center}.auth-section{align-items:center;background:var(--surface);display:flex;justify-content:center;min-height:100vh;padding:4rem 1.5rem}.auth-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);max-width:420px;padding:2.5rem;width:100%}.auth-card header{margin-bottom:2rem;text-align:center}.auth-logo{background:var(--primary);border-radius:12px;color:#fff;display:grid;font-size:1.1rem;font-weight:700;height:48px;margin:0 auto 1rem;place-items:center;width:48px}.auth-card h1{font-size:1.75rem;font-weight:700;margin-bottom:.25rem}.auth-card h1 span{color:var(--text-light);font-weight:300}.auth-subtitle{color:var(--text-light);font-size:.85rem}.auth-field{margin-bottom:1.25rem}.auth-field label{color:var(--text-light);display:block;font-size:.75rem;font-weight:600;letter-spacing:.05em;margin-bottom:.5rem;text-transform:uppercase}.auth-field input,.auth-field select,.auth-field textarea{background:var(--surface);border:1px solid var(--border);border-radius:12px;color:var(--text);font-size:.95rem;padding:.9rem 1rem;transition:border-color .2s;width:100%}.auth-field input:focus,.auth-field select:focus,.auth-field textarea:focus{border-color:var(--primary);outline:none}.auth-error{color:#dc2626;font-size:.85rem;margin:1rem 0;min-height:1.25rem;text-align:center}.auth-card .btn-primary{margin-top:.5rem;width:100%}.auth-footer{color:var(--text-light);font-size:.9rem;margin-top:1.5rem;text-align:center}.auth-footer :deep(a),.auth-footer a{color:var(--primary);font-weight:600}@media(max-width:900px){.hero h1{font-size:2.5rem}.nav{align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);border-top:none;box-shadow:var(--shadow-hover);display:none;flex-direction:column;gap:.25rem;left:0;margin-left:0;padding:1rem 1.5rem;position:absolute;right:0;top:100%;z-index:60}.nav.open{display:flex}.nav-link{padding:.75rem 0;width:100%}.menu-toggle{display:block}.topbar .btn{display:none}.topbar:has(.nav.open) .btn{display:inline-flex}.footer-grid{grid-template-columns:1fr 1fr}.newsletter-box{align-items:flex-start;flex-direction:column}.newsletter-form{width:100%}}@media(max-width:640px){.hero h1{font-size:2rem}.hero-actions{align-items:stretch;flex-direction:column}.section{padding:3rem 0}.newsletter-form,.stats-grid{flex-direction:column}.footer-grid{grid-template-columns:1fr}}