:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-card: #ffffff;
  --bg-card-hover: #fafafa;
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --text-muted: #999999;
  --accent: #f97316;
  --accent-hover: #ea580c;
  --accent-glow: rgba(249, 115, 22, 0.1);
  --success: #22c55e;
  --error: #ef4444;
  --border: #e5e5e5;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --font-main: 'Outfit', system-ui, sans-serif;
  --font-mono: 'Space Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); background: var(--bg-primary); color: var(--text-primary); line-height: 1.6; min-height: 100vh; overflow-x: hidden; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); padding: 12px 0; }
.header-content { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo img { height: 48px; width: auto; border-radius: 50%; }
.logo-text { font-size: 1.4rem; font-weight: 700; color: var(--text-primary); }
.logo-text span { color: var(--accent); }
nav { display: flex; gap: 8px; }
.nav-btn { padding: 10px 18px; background: transparent; border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-secondary); font-family: var(--font-main); font-size: 0.9rem; font-weight: 500; cursor: pointer; transition: all 0.2s; }
.nav-btn:hover, .nav-btn.active { background: var(--accent); border-color: var(--accent); color: white; }
.nav-btn.cart { position: relative; }
.cart-count { position: absolute; top: -6px; right: -6px; background: var(--error); color: white; font-size: 0.7rem; font-weight: 700; width: 18px; height: 18px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }

.hero { padding: 140px 0 80px; position: relative; overflow: hidden; background: linear-gradient(180deg, var(--accent-glow) 0%, transparent 100%); }
.hero-content { position: relative; text-align: center; max-width: 700px; margin: 0 auto; }
.hero h1 { font-size: clamp(2.5rem, 8vw, 4rem); font-weight: 700; line-height: 1.1; margin-bottom: 20px; color: var(--text-primary); }
.hero h1 span { color: var(--accent); }
.hero p { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 32px; }
.location-bar { display: inline-flex; align-items: center; gap: 12px; padding: 16px 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); margin-bottom: 24px; box-shadow: var(--shadow); }
.location-bar svg { color: var(--accent); }
.location-text { text-align: left; }
.location-text small { display: block; color: var(--text-muted); font-size: 0.75rem; text-transform: uppercase; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 28px; background: var(--accent); color: white; border: none; border-radius: var(--radius); font-family: var(--font-main); font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.2s; text-decoration: none; }
.btn:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(249, 115, 22, 0.3); }
.btn-outline { background: transparent; border: 2px solid var(--border); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--accent); background: var(--accent-glow); box-shadow: none; }
.btn-sm { padding: 10px 18px; font-size: 0.9rem; }
.btn-block { width: 100%; }
.whatsapp-btn { background: #25d366; }
.whatsapp-btn:hover { background: #1fb855; }

section { padding: 60px 0; }
.section-header { margin-bottom: 40px; }
.section-header h2 { font-size: 2rem; font-weight: 700; color: var(--text-primary); }
.section-header p { color: var(--text-secondary); margin-top: 8px; }

.categories { display: flex; gap: 12px; overflow-x: auto; padding: 4px 0; margin-bottom: 32px; }
.categories::-webkit-scrollbar { display: none; }
.category-btn { flex-shrink: 0; padding: 12px 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 100px; color: var(--text-secondary); font-family: var(--font-main); font-size: 0.9rem; font-weight: 500; cursor: pointer; transition: all 0.2s; }
.category-btn:hover, .category-btn.active { background: var(--accent); border-color: var(--accent); color: white; }
.category-btn span { margin-right: 6px; }

.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.product-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all 0.3s; box-shadow: var(--shadow); }
.product-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.12); }
.product-image { position: relative; aspect-ratio: 4/3; background: var(--bg-secondary); overflow: hidden; }
.product-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.product-card:hover .product-image img { transform: scale(1.05); }
.product-badge { position: absolute; top: 12px; left: 12px; padding: 6px 12px; background: var(--accent); color: white; font-size: 0.75rem; font-weight: 600; border-radius: 100px; }
.product-info { padding: 20px; }
.product-category { font-size: 0.75rem; color: var(--accent); text-transform: uppercase; font-weight: 600; }
.product-name { font-size: 1.1rem; font-weight: 600; margin: 8px 0; color: var(--text-primary); }
.product-desc { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-footer { display: flex; align-items: center; justify-content: space-between; }
.product-price { font-family: var(--font-mono); font-size: 1.3rem; font-weight: 700; color: var(--accent); }
.product-price small { font-size: 0.7em; color: var(--text-muted); text-decoration: line-through; margin-left: 8px; }
.add-to-cart { width: 44px; height: 44px; background: var(--accent); border: none; border-radius: 50%; color: white; cursor: pointer; transition: all 0.2s; display: flex; align-items: center; justify-content: center; }
.add-to-cart:hover { background: var(--accent-hover); transform: scale(1.1); }
.add-to-cart:disabled { background: var(--text-muted); cursor: not-allowed; }

.store-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 40px; box-shadow: var(--shadow); }
.store-header { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.store-info h3 { font-size: 1.2rem; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.store-info p { font-size: 0.9rem; color: var(--text-secondary); }
.store-distance { text-align: right; }
.store-distance .km { font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.store-distance small { display: block; font-size: 0.75rem; color: var(--text-muted); }
.store-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.5); backdrop-filter: blur(8px); z-index: 200; display: flex; align-items: center; justify-content: center; padding: 20px; opacity: 0; visibility: hidden; transition: all 0.3s; }
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); width: 100%; max-width: 500px; max-height: 90vh; overflow-y: auto; transform: scale(0.9); transition: transform 0.3s; box-shadow: 0 20px 60px rgba(0,0,0,0.2); }
.modal-overlay.active .modal { transform: scale(1); }
.modal-header { display: flex; justify-content: space-between; padding: 20px 24px; border-bottom: 1px solid var(--border); }
.modal-header h3 { font-size: 1.2rem; font-weight: 600; color: var(--text-primary); }
.modal-close { width: 36px; height: 36px; background: transparent; border: 1px solid var(--border); border-radius: 50%; color: var(--text-secondary); cursor: pointer; font-size: 1.2rem; }
.modal-close:hover { background: var(--error); border-color: var(--error); color: white; }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; gap: 12px; justify-content: flex-end; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 8px; color: var(--text-secondary); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 14px 16px; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-primary); font-family: var(--font-main); font-size: 1rem; }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.pets-list { display: flex; flex-direction: column; gap: 12px; }
.pet-card { display: flex; align-items: center; gap: 16px; padding: 16px; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: var(--radius); }
.pet-avatar { width: 56px; height: 56px; background: var(--accent-glow); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; }
.pet-info { flex: 1; }
.pet-name { font-weight: 600; color: var(--text-primary); }
.pet-details { font-size: 0.85rem; color: var(--text-secondary); }
.pet-delete { width: 36px; height: 36px; background: transparent; border: 1px solid var(--border); border-radius: 50%; color: var(--text-muted); cursor: pointer; }
.pet-delete:hover { background: var(--error); border-color: var(--error); color: white; }

.cart-sidebar { position: fixed; top: 0; right: 0; bottom: 0; width: 100%; max-width: 420px; background: var(--bg-card); border-left: 1px solid var(--border); z-index: 300; transform: translateX(100%); transition: transform 0.3s; display: flex; flex-direction: column; box-shadow: -10px 0 40px rgba(0,0,0,0.1); }
.cart-sidebar.active { transform: translateX(0); }
.cart-header { padding: 20px 24px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.cart-header h3 { font-size: 1.2rem; font-weight: 600; color: var(--text-primary); }
.cart-close { width: 36px; height: 36px; background: transparent; border: 1px solid var(--border); border-radius: 50%; color: var(--text-secondary); cursor: pointer; font-size: 1.2rem; display: flex; align-items: center; justify-content: center; }
.cart-close:hover { background: var(--error); border-color: var(--error); color: white; }
.cart-items { flex: 1; overflow-y: auto; padding: 16px 24px; }
.cart-item { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--border); }
.cart-item-image { width: 72px; height: 72px; border-radius: var(--radius); overflow: hidden; background: var(--bg-secondary); flex-shrink: 0; }
.cart-item-image img { width: 100%; height: 100%; object-fit: cover; }
.cart-item-info { flex: 1; }
.cart-item-name { font-weight: 500; margin-bottom: 4px; color: var(--text-primary); }
.cart-item-price { font-family: var(--font-mono); color: var(--accent); font-weight: 600; }
.cart-item-qty { display: flex; align-items: center; gap: 12px; margin-top: 8px; }
.qty-btn { width: 28px; height: 28px; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 6px; color: var(--text-primary); cursor: pointer; font-weight: 600; display: flex; align-items: center; justify-content: center; }
.qty-btn:hover { border-color: var(--accent); background: var(--accent-glow); }
.cart-footer { padding: 20px 24px; border-top: 1px solid var(--border); background: var(--bg-secondary); }
.cart-total { display: flex; justify-content: space-between; margin-bottom: 16px; align-items: center; }
.cart-total-label { color: var(--text-secondary); font-weight: 500; }
.cart-total-value { font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700; color: var(--accent); }

footer { padding: 40px 0; border-top: 1px solid var(--border); text-align: center; background: var(--bg-secondary); }
.footer-logo { font-size: 1.5rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
.footer-logo span { color: var(--accent); }
footer p { color: var(--text-muted); font-size: 0.9rem; }

.loading { display: flex; justify-content: center; padding: 60px; }
.spinner { width: 40px; height: 40px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(100px); padding: 16px 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); z-index: 400; opacity: 0; transition: all 0.3s; box-shadow: var(--shadow); color: var(--text-primary); }
.toast.active { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.success { border-color: var(--success); background: #f0fdf4; color: var(--success); }
.toast.error { border-color: var(--error); background: #fef2f2; color: var(--error); }

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-secondary); }
.empty-state svg { width: 80px; height: 80px; color: var(--text-muted); margin-bottom: 16px; }
.empty-state h4 { font-size: 1.2rem; margin-bottom: 8px; color: var(--text-primary); }
.empty-state p { color: var(--text-secondary); }

.install-banner { position: fixed; bottom: 0; left: 0; right: 0; padding: 16px 20px; background: var(--bg-card); border-top: 1px solid var(--border); display: none; justify-content: space-between; z-index: 150; box-shadow: 0 -4px 20px rgba(0,0,0,0.1); }
.install-banner.show { display: flex; }
.install-banner-actions { display: flex; gap: 8px; }

@media (max-width: 768px) {
  .logo-text { display: none; }
  nav { gap: 4px; }
  .nav-btn { padding: 8px 12px; font-size: 0.8rem; }
  .hero { padding: 120px 0 60px; }
  .hero h1 { font-size: 2rem; }
  .products-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
  .form-row { grid-template-columns: 1fr; }
  .store-header { flex-direction: column; }
  .store-distance { text-align: left; }
}