/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --primary: #c0392b;
    --primary-dark: #96281b;
    --primary-light: #e74c3c;
    --secondary: #f39c12;
    --accent: #27ae60;
    --dark: #2c3e50;
    --light: #ecf0f1;
    --gray: #7f8c8d;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(0,0,0,0.1);
    --radius: 10px;
    --transition: all 0.3s ease;
}
html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', Tahoma, sans-serif; background: #f8f9fa; color: var(--dark); line-height: 1.6; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 15px; }

/* ===== TOP BAR ===== */
.top-bar { background: var(--dark); color: #ccc; padding: 8px 0; font-size: 13px; }
.top-bar-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.contact-info { display: flex; gap: 20px; flex-wrap: wrap; }
.contact-info span { display: flex; align-items: center; gap: 6px; }
.contact-info i { color: var(--secondary); }
.discount-badge { background: var(--primary); color: #fff; padding: 3px 12px; border-radius: 20px; font-weight: 600; font-size: 12px; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.7} }

/* ===== NAVBAR ===== */
.navbar { background: var(--white); box-shadow: 0 2px 10px rgba(0,0,0,0.12); position: sticky; top: 0; z-index: 1000; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 15px; }
.brand-logo { display: flex; align-items: center; gap: 12px; }
.brand-icon { font-size: 36px; }
.brand-name { font-size: 22px; font-weight: 700; color: var(--primary); line-height: 1; }
.brand-sub { font-size: 11px; color: var(--gray); }
.nav-links { display: flex; gap: 5px; align-items: center; }
.nav-links a { padding: 8px 14px; border-radius: 6px; font-weight: 500; font-size: 14px; color: var(--dark); transition: var(--transition); display: flex; align-items: center; gap: 6px; position: relative; }
.nav-links a:hover, .nav-links a.active { background: var(--primary); color: var(--white); }
.cart-badge { background: var(--secondary); color: #fff; border-radius: 50%; width: 18px; height: 18px; font-size: 11px; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; }
.hamburger { display: none; background: var(--primary); color: #fff; border: none; padding: 8px 12px; border-radius: 6px; cursor: pointer; font-size: 18px; }

/* ===== HERO ===== */
.hero { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, #7b241c 100%); color: #fff; padding: 80px 0; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat; }
.hero-content { position: relative; display: flex; gap: 40px; align-items: center; }
.hero-text { flex: 1; }
.hero-text h1 { font-size: 3rem; font-weight: 800; line-height: 1.1; text-shadow: 2px 2px 8px rgba(0,0,0,0.3); margin-bottom: 20px; }
.hero-text h1 span { color: var(--secondary); }
.hero-text p { font-size: 1.1rem; opacity: 0.9; max-width: 500px; margin-bottom: 30px; }
.hero-buttons { display: flex; gap: 15px; flex-wrap: wrap; }
.btn { padding: 14px 30px; border-radius: 8px; font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; gap: 8px; cursor: pointer; transition: var(--transition); border: 2px solid transparent; }
.btn-primary { background: var(--white); color: var(--primary); }
.btn-primary:hover { background: var(--secondary); color: #fff; }
.btn-outline { border-color: #fff; color: #fff; }
.btn-outline:hover { background: #fff; color: var(--primary); }
.btn-red { background: var(--primary); color: #fff; }
.btn-red:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 5px 15px rgba(0,0,0,0.2); }
.btn-green { background: var(--accent); color: #fff; }
.btn-green:hover { background: #219150; }
.hero-stats { display: flex; gap: 30px; margin-top: 40px; }
.stat { text-align: center; }
.stat-num { font-size: 2rem; font-weight: 800; color: var(--secondary); }
.stat-label { font-size: 12px; opacity: 0.8; text-transform: uppercase; letter-spacing: 1px; }
.hero-image { flex: 0 0 300px; text-align: center; font-size: 120px; opacity: 0.15; position: absolute; right: 0; top: -20px; }

/* ===== DISCOUNT BANNER ===== */
.discount-banner { background: linear-gradient(90deg, var(--secondary), #e67e22, var(--secondary)); text-align: center; padding: 16px; color: #fff; font-size: 1.3rem; font-weight: 700; letter-spacing: 2px; animation: scroll-banner 10s linear infinite; }

/* ===== SECTION TITLES ===== */
.section { padding: 60px 0; }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-size: 2.2rem; color: var(--dark); position: relative; display: inline-block; padding-bottom: 15px; }
.section-title h2::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 60px; height: 4px; background: var(--primary); border-radius: 2px; }
.section-title p { color: var(--gray); margin-top: 12px; font-size: 1.05rem; }
.section-alt { background: var(--white); }

/* ===== FEATURES ===== */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 25px; }
.feature-card { background: var(--white); border-radius: var(--radius); padding: 30px 20px; text-align: center; box-shadow: var(--shadow); transition: var(--transition); border-top: 4px solid var(--primary); }
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 8px 30px rgba(0,0,0,0.15); }
.feature-icon { font-size: 3rem; margin-bottom: 15px; }
.feature-card h3 { font-size: 1.1rem; color: var(--dark); margin-bottom: 8px; }
.feature-card p { color: var(--gray); font-size: 0.9rem; }

/* ===== CATEGORIES ===== */
.categories-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; }
.category-card { background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); cursor: pointer; }
.category-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.15); }
.category-card a { display: block; }
.cat-img { width: 100%; height: 150px; object-fit: cover; background: linear-gradient(135deg, #ff6b6b, #feca57); display: flex; align-items: center; justify-content: center; font-size: 4rem; }
.cat-img img { width: 100%; height: 150px; object-fit: cover; }
.cat-info { padding: 15px; text-align: center; }
.cat-info h3 { font-size: 1rem; color: var(--dark); font-weight: 600; }

/* ===== PRODUCTS TABLE ===== */
.products-section { padding: 40px 0; }
.products-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px; margin-bottom: 30px; }
.products-header h1 { font-size: 2rem; color: var(--dark); }
.search-bar { display: flex; gap: 10px; align-items: center; }
.search-bar input { padding: 10px 18px; border: 2px solid #ddd; border-radius: 30px; font-size: 14px; width: 260px; outline: none; transition: var(--transition); }
.search-bar input:focus { border-color: var(--primary); }
.search-bar button { background: var(--primary); color: #fff; border: none; padding: 10px 20px; border-radius: 30px; cursor: pointer; font-size: 14px; }
.category-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 30px; }
.category-tab { padding: 8px 18px; border: 2px solid var(--primary); border-radius: 25px; cursor: pointer; font-size: 13px; font-weight: 500; transition: var(--transition); background: transparent; color: var(--primary); }
.category-tab:hover, .category-tab.active { background: var(--primary); color: #fff; }
.product-category { margin-bottom: 40px; }
.product-category h2 { font-size: 1.4rem; color: var(--primary); padding: 12px 20px; background: linear-gradient(90deg, rgba(192,57,43,0.1), transparent); border-left: 5px solid var(--primary); margin-bottom: 15px; border-radius: 0 8px 8px 0; }
.products-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.products-table thead { background: var(--primary); color: #fff; }
.products-table th { padding: 14px 12px; text-align: left; font-size: 13px; font-weight: 600; white-space: nowrap; }
.products-table td { padding: 12px; border-bottom: 1px solid #f0f0f0; vertical-align: middle; font-size: 14px; }
.products-table tr:last-child td { border-bottom: none; }
.products-table tr:hover td { background: rgba(192,57,43,0.04); }
.product-img-cell { display: flex; align-items: center; gap: 12px; }
.product-img-cell img { width: 55px; height: 55px; object-fit: cover; border-radius: 8px; border: 2px solid #eee; }
.product-img-cell .img-placeholder { width: 55px; height: 55px; background: linear-gradient(135deg, var(--primary), #e74c3c); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 24px; flex-shrink: 0; }
.product-name { font-weight: 600; color: var(--dark); }
.price-actual { color: var(--gray); text-decoration: line-through; font-size: 13px; }
.price-discount { color: var(--primary); font-weight: 700; font-size: 1rem; }
.discount-tag { background: var(--accent); color: #fff; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; display: inline-block; }
.qty-control { display: flex; align-items: center; gap: 8px; }
.qty-btn { width: 30px; height: 30px; border: 2px solid var(--primary); background: transparent; color: var(--primary); border-radius: 50%; cursor: pointer; font-size: 16px; font-weight: 700; transition: var(--transition); display: flex; align-items: center; justify-content: center; }
.qty-btn:hover { background: var(--primary); color: #fff; }
.qty-input { width: 50px; text-align: center; border: 2px solid #ddd; border-radius: 6px; padding: 4px; font-size: 14px; font-weight: 600; }
.total-price { font-weight: 700; color: var(--secondary); font-size: 1rem; }
.add-cart-btn { background: var(--primary); color: #fff; border: none; padding: 9px 18px; border-radius: 6px; cursor: pointer; font-size: 13px; font-weight: 600; transition: var(--transition); white-space: nowrap; display: flex; align-items: center; gap: 6px; }
.add-cart-btn:hover { background: var(--primary-dark); transform: translateY(-1px); }
.add-cart-btn.added { background: var(--accent); }

/* ===== CART ===== */
.cart-section { padding: 50px 0; }
.cart-layout { display: grid; grid-template-columns: 1fr 380px; gap: 30px; }
.cart-table-wrap { background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.cart-empty { text-align: center; padding: 60px; color: var(--gray); }
.cart-empty i { font-size: 4rem; color: #ddd; margin-bottom: 15px; }
.cart-empty h3 { font-size: 1.4rem; margin-bottom: 10px; }
.cart-summary { background: var(--white); border-radius: var(--radius); padding: 25px; box-shadow: var(--shadow); height: fit-content; position: sticky; top: 80px; }
.cart-summary h3 { font-size: 1.3rem; margin-bottom: 20px; color: var(--dark); border-bottom: 2px solid var(--light); padding-bottom: 12px; }
.summary-row { display: flex; justify-content: space-between; margin-bottom: 12px; font-size: 14px; }
.summary-row.total { font-size: 1.1rem; font-weight: 700; border-top: 2px solid var(--light); padding-top: 12px; margin-top: 8px; color: var(--primary); }
.summary-row.discount { color: var(--accent); font-weight: 600; }
.checkout-btn { width: 100%; padding: 15px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-size: 1rem; font-weight: 700; cursor: pointer; transition: var(--transition); margin-top: 15px; }
.checkout-btn:hover { background: var(--primary-dark); }
.remove-btn { background: none; border: none; color: #e74c3c; cursor: pointer; font-size: 18px; padding: 5px; transition: var(--transition); }
.remove-btn:hover { color: var(--primary-dark); transform: scale(1.2); }

/* ===== CHECKOUT / ORDER FORM ===== */
.checkout-section { padding: 50px 0; }
.checkout-grid { display: grid; grid-template-columns: 1fr 380px; gap: 30px; }
.form-card { background: var(--white); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.form-card h2 { font-size: 1.4rem; color: var(--dark); margin-bottom: 25px; padding-bottom: 12px; border-bottom: 2px solid var(--light); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--dark); margin-bottom: 6px; }
.form-group label span { color: var(--primary); }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 11px 15px; border: 2px solid #e0e0e0; border-radius: 8px; font-size: 14px; transition: var(--transition); outline: none; font-family: inherit; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(192,57,43,0.1); }
.form-group textarea { resize: vertical; min-height: 80px; }

/* ===== ALERTS ===== */
.alert { padding: 14px 20px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; font-weight: 500; display: flex; align-items: center; gap: 10px; }
.alert-success { background: #d5f5e3; color: #1e8449; border: 1px solid #82e0aa; }
.alert-error { background: #fadbd8; color: #922b21; border: 1px solid #f1948a; }
.alert-info { background: #d6eaf8; color: #1a5276; border: 1px solid #85c1e9; }

/* ===== ADMIN ===== */
.admin-wrap { display: flex; min-height: 100vh; }
.admin-sidebar { width: 260px; background: var(--dark); color: #fff; position: fixed; top: 0; left: 0; height: 100vh; overflow-y: auto; z-index: 100; }
.admin-logo { padding: 25px 20px; background: var(--primary); }
.admin-logo h2 { font-size: 1.2rem; color: #fff; }
.admin-logo p { font-size: 11px; color: rgba(255,255,255,0.7); margin-top: 3px; }
.admin-nav { padding: 15px 0; }
.admin-nav a { display: flex; align-items: center; gap: 12px; padding: 13px 20px; color: rgba(255,255,255,0.75); font-size: 14px; transition: var(--transition); border-left: 3px solid transparent; }
.admin-nav a:hover, .admin-nav a.active { background: rgba(255,255,255,0.08); color: #fff; border-left-color: var(--secondary); }
.admin-nav a i { width: 18px; text-align: center; }
.admin-nav .nav-divider { padding: 10px 20px 5px; font-size: 10px; text-transform: uppercase; letter-spacing: 2px; color: rgba(255,255,255,0.35); margin-top: 10px; }
.admin-content { margin-left: 260px; flex: 1; padding: 0; }
.admin-topbar { background: var(--white); padding: 15px 30px; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 2px 8px rgba(0,0,0,0.08); position: sticky; top: 0; z-index: 50; }
.admin-topbar h1 { font-size: 1.3rem; color: var(--dark); }
.admin-topbar a { color: var(--primary); font-size: 14px; }
.admin-main { padding: 30px; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; margin-bottom: 30px; }
.stat-card { background: var(--white); border-radius: var(--radius); padding: 25px; display: flex; align-items: center; gap: 18px; box-shadow: var(--shadow); border-left: 5px solid var(--primary); }
.stat-card.green { border-left-color: var(--accent); }
.stat-card.orange { border-left-color: var(--secondary); }
.stat-card.blue { border-left-color: #3498db; }
.stat-icon { width: 55px; height: 55px; border-radius: 50%; background: rgba(192,57,43,0.1); display: flex; align-items: center; justify-content: center; font-size: 22px; color: var(--primary); }
.stat-card.green .stat-icon { background: rgba(39,174,96,0.1); color: var(--accent); }
.stat-card.orange .stat-icon { background: rgba(243,156,18,0.1); color: var(--secondary); }
.stat-card.blue .stat-icon { background: rgba(52,152,219,0.1); color: #3498db; }
.stat-info h3 { font-size: 1.8rem; font-weight: 800; }
.stat-info p { color: var(--gray); font-size: 13px; }
.card { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; margin-bottom: 25px; }
.card-header { padding: 18px 25px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid #f0f0f0; }
.card-header h2 { font-size: 1.1rem; color: var(--dark); }
.card-body { padding: 25px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table th { background: #f8f9fa; padding: 12px 15px; text-align: left; font-weight: 600; color: var(--dark); border-bottom: 2px solid #e0e0e0; white-space: nowrap; }
.admin-table td { padding: 12px 15px; border-bottom: 1px solid #f0f0f0; vertical-align: middle; }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: #fafafa; }
.badge { padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; display: inline-block; }
.badge-pending { background: #fef3cd; color: #856404; }
.badge-confirmed { background: #d1ecf1; color: #0c5460; }
.badge-processing { background: #d6d8f7; color: #383d41; }
.badge-shipped { background: #c3e6cb; color: #155724; }
.badge-delivered { background: #d4edda; color: #155724; }
.badge-cancelled { background: #f8d7da; color: #721c24; }
.badge-active { background: #d4edda; color: #155724; }
.badge-inactive { background: #f8d7da; color: #721c24; }
.btn-sm { padding: 6px 14px; font-size: 12px; border-radius: 5px; border: none; cursor: pointer; font-weight: 600; transition: var(--transition); display: inline-flex; align-items: center; gap: 5px; }
.btn-edit { background: #3498db; color: #fff; }
.btn-delete { background: var(--primary); color: #fff; }
.btn-view { background: var(--accent); color: #fff; }
.btn-sm:hover { opacity: 0.85; transform: translateY(-1px); }
.admin-form .form-group label { color: var(--dark); }
.discount-info { font-size: 12px; color: var(--gray); margin-top: 4px; }

/* ===== STATUS BADGE COLORS ===== */
.status-select { padding: 5px 10px; border: 1px solid #ddd; border-radius: 5px; font-size: 13px; cursor: pointer; }

/* ===== ABOUT & CONTACT ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-img-wrap { text-align: center; font-size: 8rem; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info-box h3 { font-size: 1.2rem; margin-bottom: 20px; color: var(--dark); }
.contact-info-item { display: flex; gap: 15px; margin-bottom: 20px; }
.contact-info-item i { width: 40px; height: 40px; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }

/* ===== ORDER SUCCESS ===== */
.order-success { text-align: center; padding: 60px 20px; }
.order-success .success-icon { font-size: 5rem; color: var(--accent); margin-bottom: 20px; animation: bounce 0.6s ease; }
@keyframes bounce { 0%{transform:scale(0)} 60%{transform:scale(1.2)} 100%{transform:scale(1)} }
.order-success h2 { font-size: 2rem; color: var(--dark); margin-bottom: 10px; }
.order-number-box { background: var(--light); border-radius: var(--radius); padding: 20px; margin: 20px auto; max-width: 400px; }
.order-number-box .num { font-size: 1.8rem; font-weight: 800; color: var(--primary); }

/* ===== FOOTER ===== */
.footer { background: var(--dark); color: rgba(255,255,255,0.8); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 35px; margin-bottom: 40px; }
.footer h3 { color: #fff; font-size: 1.1rem; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer h3::after { content: ''; position: absolute; bottom: 0; left: 0; width: 35px; height: 3px; background: var(--primary); }
.footer p { font-size: 14px; line-height: 1.8; }
.footer ul li { margin-bottom: 8px; }
.footer ul a { font-size: 14px; display: flex; align-items: center; gap: 8px; transition: var(--transition); }
.footer ul a:hover { color: var(--secondary); }
.footer ul a i { font-size: 11px; color: var(--primary); }
.footer .contact-list li { display: flex; align-items: center; gap: 12px; font-size: 14px; margin-bottom: 10px; }
.footer .contact-list i { color: var(--secondary); width: 16px; }
.social-links { display: flex; gap: 10px; margin-top: 15px; }
.social-links a { width: 36px; height: 36px; background: rgba(255,255,255,0.1); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.social-links a:hover { background: var(--primary); }
.footer-badge { background: var(--primary); color: #fff; padding: 10px 15px; border-radius: var(--radius); text-align: center; font-weight: 700; margin-top: 15px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); text-align: center; padding: 20px; font-size: 13px; color: rgba(255,255,255,0.5); }

/* ===== PAGINATION ===== */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 20px; }
.page-btn { padding: 8px 14px; border: 1px solid #ddd; border-radius: 6px; cursor: pointer; font-size: 14px; transition: var(--transition); background: #fff; }
.page-btn.active, .page-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== MODAL ===== */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 2000; justify-content: center; align-items: center; }
.modal-overlay.show { display: flex; }
.modal { background: #fff; border-radius: var(--radius); max-width: 600px; width: 90%; max-height: 90vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.modal-header { padding: 20px 25px; border-bottom: 1px solid #eee; display: flex; justify-content: space-between; align-items: center; }
.modal-header h3 { font-size: 1.2rem; color: var(--dark); }
.modal-close { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--gray); }
.modal-body { padding: 25px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .cart-layout, .checkout-grid { grid-template-columns: 1fr; }
    .about-grid, .contact-grid { grid-template-columns: 1fr; }
    .admin-sidebar { transform: translateX(-100%); transition: transform 0.3s; }
    .admin-sidebar.open { transform: translateX(0); }
    .admin-content { margin-left: 0; }
}
@media (max-width: 768px) {
    .hamburger { display: flex; }
    .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column; padding: 15px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); gap: 5px; }
    .nav-links.open { display: flex; }
    .hero-text h1 { font-size: 2rem; }
    .hero-content { flex-direction: column; }
    .hero-stats { justify-content: center; }
    .products-table { display: block; overflow-x: auto; }
    .form-row { grid-template-columns: 1fr; }
    .top-bar-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
    .category-tabs { gap: 5px; }
    .category-tab { font-size: 11px; padding: 6px 12px; }
}

/* ===== UTILS ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.d-flex { display: flex; }
.gap-10 { gap: 10px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.hidden { display: none; }
.w-100 { width: 100%; }
.no-products { text-align: center; padding: 40px; color: var(--gray); }

/* ════════════════════════════════════════
   BILLING / INVOICE ADMIN STYLES
   ════════════════════════════════════════ */

/* Invoice status badges */
.badge-paid     { background:#d4edda; color:#155724; }
.badge-partial  { background:#fff3cd; color:#856404; }
.badge-overdue  { background:#f8d7da; color:#721c24; }
.badge-sent     { background:#d1ecf1; color:#0c5460; }
.badge-draft    { background:#e2e3e5; color:#383d41; }
.badge-cancelled{ background:#f8d7da; color:#721c24; }

/* Totals row inside forms */
.trow {
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:8px 0;
    font-size:14px;
    border-bottom:1px solid #f5f5f5;
}
.trow:last-child { border-bottom:none; }

/* Invoice table input fields */
.ifield {
    width:100%;
    padding:7px 8px;
    border:1px solid #e0e0e0;
    border-radius:5px;
    font-size:13px;
    box-sizing:border-box;
    transition:border-color .2s;
}
.ifield:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 2px rgba(192,57,43,0.08); }
.iselect {
    padding:6px;
    border:1px solid #e0e0e0;
    border-radius:5px;
    font-size:12px;
    background:#fff;
}

/* Customer CRM card stats */
.customer-stat-row {
    display:flex;
    gap:15px;
    margin-top:12px;
    flex-wrap:wrap;
}
.cstat {
    background:#f8f9fa;
    border-radius:8px;
    padding:12px 18px;
    text-align:center;
    flex:1;
    min-width:80px;
    border:1px solid #eee;
}
.cstat-num  { font-size:1.4rem; font-weight:800; color:var(--primary); }
.cstat-lbl  { font-size:11px; color:var(--gray); margin-top:2px; }

/* Quick action buttons bar */
.quick-actions {
    display:flex;
    gap:10px;
    flex-wrap:wrap;
    margin-bottom:20px;
}

/* Billing summary box */
.billing-summary-box {
    background:linear-gradient(135deg,#fff3f3,#fff);
    border:1px solid #f5c6cb;
    border-radius:10px;
    padding:20px;
}
.billing-summary-box h3 {
    color:var(--primary);
    font-size:1rem;
    margin-bottom:12px;
}

/* PDF / Print action bar */
.abtn {
    padding:8px 18px;
    border:none;
    border-radius:6px;
    cursor:pointer;
    font-size:13px;
    font-weight:600;
    display:inline-flex;
    align-items:center;
    gap:6px;
    text-decoration:none;
    transition:opacity .2s, transform .15s;
}
.abtn:hover { opacity:.88; transform:translateY(-1px); }
.abtn-primary { background:var(--primary); color:#fff; }
.abtn-success { background:var(--accent); color:#fff; }
.abtn-info    { background:#2980b9; color:#fff; }
.abtn-light   { background:#ecf0f1; color:#2c3e50; }
.abtn-warning { background:var(--secondary); color:#fff; }

/* Nav badge (sidebar count bubbles) */
.nav-badge {
    background:var(--secondary);
    color:#fff;
    border-radius:10px;
    font-size:10px;
    padding:1px 6px;
    font-weight:700;
    margin-left:auto;
    line-height:1.6;
}
.nav-badge.red { background:var(--primary); }

/* Responsive admin grid */
@media (max-width:900px) {
    .checkout-grid,
    .cart-layout,
    .about-grid,
    .contact-grid { grid-template-columns:1fr !important; }
    .stats-grid   { grid-template-columns:1fr 1fr; }
}
@media (max-width:600px) {
    .stats-grid { grid-template-columns:1fr; }
    .form-row   { grid-template-columns:1fr !important; }
}