/* =========================================================
   SpareZone - Base styles
   ========================================================= */
:root {
    --color-primary: #1a4d8f;
    --color-primary-dark: #123a6b;
    --color-accent: #f5a623;
    --color-text: #2b2b2b;
    --color-muted: #6b7280;
    --color-border: #e2e5e9;
    --color-bg: #f7f8fa;
    --color-success: #1e8e3e;
    --color-danger: #c0392b;
    --radius: 6px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.5;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section { padding: 40px 0; }
.section-title {
    font-size: 22px;
    margin: 30px 0 20px;
    border-left: 4px solid var(--color-accent);
    padding-left: 10px;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 10px 22px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-small { padding: 6px 14px; background: var(--color-primary); color: #fff; font-size: 13px; width: 100%; }
.btn-link { background: none; border: none; color: var(--color-danger); cursor: pointer; text-decoration: underline; }

/* --- Topbar & Header --- */
.topbar { background: var(--color-primary-dark); color: #fff; font-size: 13px; }
.topbar-inner { display: flex; justify-content: space-between; padding: 6px 20px; }

.main-header { background: #fff; border-bottom: 1px solid var(--color-border); }
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    gap: 20px;
    flex-wrap: wrap;
}
.logo { font-size: 26px; font-weight: 800; color: var(--color-primary); }

.search-form { flex: 1; display: flex; max-width: 500px; }
.search-form input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-right: none;
    border-radius: var(--radius) 0 0 var(--radius);
}
.search-form button {
    padding: 10px 18px;
    background: var(--color-accent);
    border: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    cursor: pointer;
    font-weight: 600;
}

.header-actions { display: flex; align-items: center; gap: 16px; font-size: 14px; }
.header-actions .cart-link { font-weight: 700; color: var(--color-primary); }

.main-nav { background: var(--color-primary); }
.main-nav .container { display: flex; gap: 22px; flex-wrap: wrap; padding: 10px 20px; }
.main-nav a { color: #fff; font-size: 14px; }
.main-nav a:hover { color: var(--color-accent); }

/* --- Hero --- */
.hero {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    padding: 60px 0;
    text-align: center;
}
.hero h1 { font-size: 34px; margin-bottom: 12px; }
.hero p { font-size: 16px; margin-bottom: 24px; opacity: 0.9; }

/* --- Grids --- */
.grid { display: grid; gap: 20px; }
.grid-6 { grid-template-columns: repeat(6, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
    .grid-6 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
    .grid-6 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: 1fr; }
}

/* --- Category card --- */
.category-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    text-align: center;
    padding: 16px 10px;
    display: block;
}
.category-card img { height: 80px; margin: 0 auto 10px; object-fit: contain; }
.category-card span { font-size: 14px; font-weight: 600; }

/* --- Product card --- */
.product-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.product-card img { height: 180px; object-fit: contain; padding: 14px; background: #fff; }
.product-card-body { padding: 12px 14px; border-top: 1px solid var(--color-border); display: flex; flex-direction: column; gap: 6px; }
.product-name { font-size: 14px; font-weight: 600; min-height: 38px; }
.product-brand { font-size: 12px; color: var(--color-muted); }
.product-price { font-size: 15px; font-weight: 700; }
.price-old { text-decoration: line-through; color: var(--color-muted); font-weight: 400; margin-right: 8px; font-size: 13px; }
.price-new { color: var(--color-primary); }
.out-of-stock { color: var(--color-danger); font-size: 13px; font-weight: 600; }
.in-stock { color: var(--color-success); font-weight: 600; }

/* --- Products listing layout --- */
.products-layout { display: grid; grid-template-columns: 220px 1fr; gap: 30px; }
.sidebar { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 16px; height: fit-content; }
.sidebar h3 { margin-top: 0; font-size: 16px; }
.category-list li a { display: block; padding: 8px 0; font-size: 14px; border-bottom: 1px solid var(--color-border); }
.category-list li a.active { color: var(--color-primary); font-weight: 700; }
.products-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.sort-form select { padding: 8px; border-radius: var(--radius); border: 1px solid var(--color-border); }

@media (max-width: 800px) {
    .products-layout { grid-template-columns: 1fr; }
}

/* --- Pagination --- */
.pagination { display: flex; gap: 8px; margin-top: 24px; }
.pagination a { padding: 8px 14px; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); }
.pagination a.active { background: var(--color-primary); color: #fff; }

/* --- Product detail --- */
.breadcrumb { font-size: 13px; color: var(--color-muted); margin-bottom: 20px; }
.product-detail-layout { display: grid; grid-template-columns: 400px 1fr; gap: 40px; margin-bottom: 40px; }
.product-detail-image { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 20px; }
.product-detail-image img { width: 100%; height: 350px; object-fit: contain; }
.product-price-large { font-size: 26px; margin: 16px 0; }
.add-to-cart-form { display: flex; align-items: center; gap: 10px; margin: 20px 0; }
.add-to-cart-form input[type=number] { width: 70px; padding: 8px; border-radius: var(--radius); border: 1px solid var(--color-border); }
.product-description { margin-top: 24px; }
.stock-status { font-size: 14px; }

@media (max-width: 800px) {
    .product-detail-layout { grid-template-columns: 1fr; }
}

/* --- Cart --- */
.cart-table { width: 100%; border-collapse: collapse; background: #fff; }
.cart-table th, .cart-table td { padding: 12px; border-bottom: 1px solid var(--color-border); text-align: left; font-size: 14px; }
.cart-product-cell { display: flex; align-items: center; gap: 12px; }
.cart-product-cell img { width: 50px; height: 50px; object-fit: contain; }
.cart-qty-form input { width: 60px; padding: 6px; border-radius: var(--radius); border: 1px solid var(--color-border); }
.cart-summary { margin-top: 20px; text-align: right; }
.cart-summary h3 { margin-bottom: 12px; }

/* --- Checkout --- */
.checkout-layout { display: grid; grid-template-columns: 1fr 350px; gap: 30px; align-items: start; }
.checkout-form, .order-summary { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 22px; }
.checkout-form label { display: block; margin: 12px 0 6px; font-size: 13px; font-weight: 600; }
.checkout-form input, .checkout-form textarea { width: 100%; padding: 10px; border-radius: var(--radius); border: 1px solid var(--color-border); }
.form-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.order-summary ul li { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--color-border); font-size: 14px; }
.order-total { font-weight: 700; font-size: 18px; margin-top: 16px; text-align: right; }

@media (max-width: 800px) {
    .checkout-layout { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
}

/* --- Auth forms --- */
.auth-section { max-width: 420px; margin: 0 auto; }
.auth-form { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 24px; }
.auth-form label { display: block; margin: 12px 0 6px; font-size: 13px; font-weight: 600; }
.auth-form input { width: 100%; padding: 10px; border-radius: var(--radius); border: 1px solid var(--color-border); }
.auth-form button { margin-top: 18px; width: 100%; }

/* --- Alerts --- */
.alert { padding: 14px 18px; border-radius: var(--radius); margin-bottom: 20px; font-size: 14px; }
.alert-error { background: #fdecea; color: var(--color-danger); border: 1px solid #f5c6cb; }
.alert-success { background: #e9f7ef; color: var(--color-success); border: 1px solid #c3e6cb; }

/* --- Status badges --- */
.status-badge { padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; }
.status-pending { background: #fff3cd; color: #856404; }
.status-processing { background: #cce5ff; color: #004085; }
.status-shipped { background: #d1ecf1; color: #0c5460; }
.status-delivered { background: #d4edda; color: #155724; }
.status-cancelled { background: #f8d7da; color: #721c24; }

/* --- Footer --- */
.main-footer { background: #1c2733; color: #cfd4da; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; padding: 40px 20px; }
.footer-grid h4 { color: #fff; margin-bottom: 12px; }
.footer-grid a { display: block; padding: 4px 0; font-size: 14px; }
.footer-bottom { border-top: 1px solid #33404d; padding: 16px 20px; text-align: center; font-size: 13px; }

@media (max-width: 800px) {
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

/* =========================================================
   Admin panel styles
   ========================================================= */
.admin-body { background: #f1f3f6; margin: 0; font-family: 'Segoe UI', Arial, sans-serif; }
.admin-wrapper { display: flex; min-height: 100vh; }

.admin-sidebar {
    width: 230px;
    background: var(--color-primary-dark);
    color: #fff;
    flex-shrink: 0;
}
.admin-sidebar .admin-logo { padding: 20px; font-size: 20px; font-weight: 800; border-bottom: 1px solid rgba(255,255,255,0.15); }
.admin-sidebar a { display: block; padding: 12px 20px; color: #d7dee6; font-size: 14px; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: var(--color-primary); color: #fff; }

.admin-main { flex: 1; padding: 26px; }
.admin-topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.admin-topbar h1 { font-size: 22px; margin: 0; }

.admin-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 30px; }
.admin-card { background: #fff; border-radius: var(--radius); padding: 20px; border: 1px solid var(--color-border); }
.admin-card span { display: block; font-size: 13px; color: var(--color-muted); margin-bottom: 6px; }
.admin-card strong { font-size: 24px; }

.admin-panel { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 20px; }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--color-border); text-align: left; font-size: 14px; }
.admin-table img { width: 40px; height: 40px; object-fit: contain; }

.admin-form label { display: block; margin: 12px 0 6px; font-size: 13px; font-weight: 600; }
.admin-form input, .admin-form select, .admin-form textarea {
    width: 100%; padding: 10px; border-radius: var(--radius); border: 1px solid var(--color-border);
}
.admin-form-actions { margin-top: 20px; }

.admin-login-wrapper { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--color-primary-dark); }
.admin-login-box { background: #fff; padding: 36px; border-radius: var(--radius); width: 340px; }
.admin-login-box h2 { text-align: center; margin-bottom: 20px; color: var(--color-primary); }

.badge-yes { color: var(--color-success); font-weight: 700; }
.badge-no { color: var(--color-danger); font-weight: 700; }

.action-links a, .action-links button {
    margin-right: 10px; font-size: 13px; color: var(--color-primary); background: none; border: none; cursor: pointer; text-decoration: underline; padding: 0;
}
.action-links .danger { color: var(--color-danger); }

@media (max-width: 900px) {
    .admin-cards { grid-template-columns: repeat(2, 1fr); }
}