:root {
    --color-primary: #1a5f4a;
    --color-primary-dark: #134636;
    --color-bg: #f6f8f7;
    --color-surface: #ffffff;
    --color-text: #1f2933;
    --color-muted: #6b7280;
    --color-border: #e5e7eb;
    --color-error: #b91c1c;
    --color-success: #047857;
    --radius: 10px;
    --shadow: 0 8px 24px rgba(0,0,0,.06);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", system-ui, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1100px, 92%); margin: 0 auto; }

.header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    gap: 1rem;
}
.logo { font-weight: 700; font-size: 1.15rem; color: var(--color-text); text-decoration: none; }
.nav { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.footer { border-top: 1px solid var(--color-border); padding: 1.5rem 0; color: var(--color-muted); font-size: .9rem; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .5rem; }
.footer-links { margin: 0; font-size: .85rem; }
.footer-links a { color: var(--color-muted); }

.main { padding: 2rem 0 3rem; }

.hero { text-align: center; padding: 2rem 0 1rem; }
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); margin-bottom: .5rem; }
.lead { font-size: 1.1rem; color: var(--color-muted); }
.muted { color: var(--color-muted); }

.btn {
    display: inline-block;
    padding: .55rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    text-decoration: none;
    font: inherit;
}
.btn:hover { filter: brightness(.98); text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-lg { padding: .75rem 1.25rem; font-size: 1rem; }
.btn-sm { padding: .35rem .65rem; font-size: .85rem; }

.section { margin-top: 2rem; }
.hero .lead { font-size: 1.15rem; color: var(--color-muted); max-width: 560px; margin: 0 auto 1.5rem; }

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    text-align: left;
}

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem; }
.feature-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1.25rem; }
.feature-card h3 { margin: 0 0 .5rem; font-size: 1rem; }

.nav-search { display: inline-flex; margin: 0 .5rem; position: relative; }
.nav-search input { padding: .35rem .6rem; border: 1px solid var(--color-border); border-radius: var(--radius); font-size: .85rem; width: 180px; }
.search-suggest { position: absolute; top: 100%; left: 0; right: 0; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); box-shadow: var(--shadow); z-index: 20; max-height: 280px; overflow: auto; margin-top: 4px; }
.search-suggest-item { display: block; padding: .5rem .75rem; color: inherit; text-decoration: none; border-bottom: 1px solid var(--color-border); font-size: .85rem; }
.search-suggest-item:hover { background: #f0faf6; }
.search-bar { margin-bottom: 1rem; }
.search-bar input[type=search] { min-width: 240px; padding: .4rem .6rem; }

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}
.category-card, .product-card, .form-card, .summary-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.category-card { padding: 1rem; display: block; color: inherit; }
.product-card img { width: 100%; height: 180px; object-fit: cover; border-radius: var(--radius) var(--radius) 0 0; }
.product-card-body { padding: .9rem; }
.product-card h3 { margin: 0 0 .35rem; font-size: 1rem; }
.product-card-link { color: inherit; text-decoration: none; display: block; }
.product-placeholder { height: 180px; background: #e8ecea; }
.product-placeholder.large { height: 360px; border-radius: var(--radius); }
.price { font-weight: 700; color: var(--color-primary); }
.price-lg { font-size: 1.6rem; font-weight: 700; color: var(--color-primary); }

.catalog-layout { display: grid; grid-template-columns: 240px 1fr; gap: 1.5rem; }
.sidebar { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1rem; height: fit-content; }
.category-list { list-style: none; padding: 0; margin: 1rem 0 0; }
.category-list a { display: block; padding: .4rem 0; color: inherit; }
.category-list a.active { color: var(--color-primary); font-weight: 600; }
.search-form { display: flex; gap: .5rem; }
.search-form input { flex: 1; }

.form-card, .summary-card { padding: 1.25rem; max-width: 520px; }
label { display: block; margin-bottom: 1rem; }
input, textarea, select {
    width: 100%;
    margin-top: .35rem;
    padding: .6rem .75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font: inherit;
}
.inline-form { display: flex; gap: .5rem; align-items: center; }
.inline-form input { width: 80px; margin: 0; }

.table { width: 100%; border-collapse: collapse; background: var(--color-surface); border-radius: var(--radius); overflow: hidden; }
.table th, .table td { padding: .75rem; border-bottom: 1px solid var(--color-border); text-align: left; }
.text-right { text-align: right; }
.actions { display: flex; gap: .75rem; margin-top: 1rem; }

.checkout-grid { display: grid; grid-template-columns: 1fr 320px; gap: 1.5rem; align-items: start; }
.summary-list { list-style: none; padding: 0; margin: 0 0 1rem; }
.summary-list li { display: flex; justify-content: space-between; gap: 1rem; padding: .35rem 0; border-bottom: 1px dashed var(--color-border); }
.summary-total { display: flex; justify-content: space-between; font-size: 1.1rem; }

.alert { padding: .85rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; }
.alert-error { background: #fef2f2; color: var(--color-error); border: 1px solid #fecaca; }
.alert-success { background: #ecfdf5; color: var(--color-success); border: 1px solid #a7f3d0; }

.badge { display: inline-block; padding: .2rem .55rem; border-radius: 999px; font-size: .8rem; background: #eef2ff; }
.badge-synced { background: #d1fae5; color: #065f46; }
.badge-pending { background: #fef3c7; color: #92400e; }
.badge-error { background: #fee2e2; color: #991b1b; }
.badge-cancelled { background: #e5e7eb; color: #374151; }

.pagination { display: flex; gap: .5rem; margin-top: 1.5rem; }
.pagination a { padding: .4rem .7rem; border: 1px solid var(--color-border); border-radius: var(--radius); background: #fff; }
.pagination a.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.product-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.product-image { width: 100%; border-radius: var(--radius); }
.add-cart-form { display: flex; gap: .75rem; align-items: end; margin-top: 1rem; }
.add-cart-form input { width: 100px; }

@media (max-width: 768px) {
    .catalog-layout, .checkout-grid, .product-detail-grid { grid-template-columns: 1fr; }
}

/* Admin */
.admin-body { background: #f0f2f1; }
.admin-header { background: #102820; color: #fff; }
.admin-header a { color: #d1fae5; }
.admin-header .logo { color: #fff; }
.narrow { max-width: 420px; margin: 0 auto; }
.wide { max-width: 760px; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.stat-card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1rem; text-align: center; }
.stat-value { display: block; font-size: 1.8rem; font-weight: 700; color: var(--color-primary); }
.stat-label { color: var(--color-muted); font-size: .85rem; }
.toolbar { display: flex; gap: .75rem; flex-wrap: wrap; margin-bottom: 1rem; align-items: center; }
.checkbox-inline { display: inline-flex; align-items: center; gap: .35rem; }
.table.compact td, .table.compact th { padding: .5rem; }
.actions-inline { display: flex; gap: .5rem; }
.source-box { background: #f9fafb; border: 1px solid var(--color-border); padding: 1rem; border-radius: var(--radius); max-height: 200px; overflow: auto; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.hidden { display: none !important; }

.account-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 1.5rem; align-items: start; }
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.address-list { list-style: none; padding: 0; margin: 0; }
.address-item { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--color-border); }
.address-select-list { display: grid; gap: .75rem; margin-bottom: 1rem; }
.address-option { display: flex; gap: .75rem; align-items: flex-start; padding: .75rem; border: 1px solid var(--color-border); border-radius: var(--radius); cursor: pointer; }
.address-option:has(input:checked) { border-color: var(--color-primary); background: #f0faf6; }

@media (max-width: 768px) {
    .account-grid { grid-template-columns: 1fr; }
}

.breadcrumbs { font-size: .9rem; color: var(--color-muted); margin-bottom: 1rem; }
.breadcrumbs a { color: var(--color-muted); }
.catalog-toolbar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; margin-bottom: 1rem; }
.catalog-toolbar h1 { margin: 0; }
.view-toggle { display: flex; gap: .25rem; }
.view-toggle .btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.quick-order-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: start; }
.search-results { list-style: none; padding: 0; margin: .5rem 0 0; max-height: 240px; overflow: auto; }
.search-results li { padding: .5rem .75rem; border: 1px solid var(--color-border); border-radius: var(--radius); margin-bottom: .35rem; cursor: pointer; }
.search-results li:hover { background: #f0faf6; }
.account-stats { margin-bottom: 1.5rem; }

.payment-methods { display: grid; gap: .75rem; margin-bottom: 1rem; }
.payment-option { display: flex; gap: .75rem; align-items: flex-start; padding: .75rem; border: 1px solid var(--color-border); border-radius: var(--radius); cursor: pointer; }
.payment-option:has(input:checked) { border-color: var(--color-primary); background: #f0faf6; }
.credit-info { font-size: .9rem; margin-bottom: 1rem; }

.product-card { position: relative; }
.favorite-form { position: absolute; top: .5rem; right: .5rem; z-index: 2; margin: 0; }
.favorite-btn { background: #fff; border: 1px solid var(--color-border); border-radius: 50%; width: 2rem; height: 2rem; cursor: pointer; font-size: 1.1rem; line-height: 1; padding: 0; }
.favorite-btn.is-favorite { color: #d97706; border-color: #fbbf24; background: #fffbeb; }
.favorite-inline { margin: .5rem 0 1rem; }

.row-thumb { width: 40px; height: 40px; object-fit: cover; border-radius: 4px; vertical-align: middle; margin-right: .5rem; }
.row-warning { background: #fffbeb; }
.btn.disabled, .btn:disabled { opacity: .5; pointer-events: none; cursor: not-allowed; }
.toolbar .btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.ps-guide { margin-top: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius); padding: .75rem 1rem; background: #f9fafb; }
.ps-guide summary { cursor: pointer; font-weight: 600; color: var(--color-primary); }
.ps-guide[open] summary { margin-bottom: .75rem; }
.guide-list { margin: 0; padding-left: 1.25rem; }
.guide-list li { margin-bottom: .4rem; }
.guide-list code { font-size: .85em; }

.reply-form textarea { width: 100%; min-height: 120px; padding: .6rem; border: 1px solid var(--color-border); border-radius: var(--radius); font: inherit; }
.message-preview { white-space: pre-wrap; line-height: 1.6; }
.reply-history { list-style: none; padding: 0; margin: 0; }
.reply-item { border-left: 3px solid var(--color-primary); padding: .75rem 1rem; margin-bottom: 1rem; background: #f9fafb; border-radius: 0 var(--radius) var(--radius) 0; }
.credit-warning { display: none; }
.credit-warning.visible { display: block; }
.error-page { text-align: center; padding: 3rem 1rem; }
.error-page .lead { max-width: 480px; margin: 0 auto 1.5rem; color: var(--color-muted); }
.public-notice { background: #eff6ff; border: 1px solid #bfdbfe; border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: 1.5rem; }
.public-notice strong { color: #1e40af; }
.price-locked, .price-locked-lg { color: var(--color-muted); font-style: italic; }
.price-locked-lg { font-size: 1.25rem; margin: 1rem 0 .5rem; }
.price-locked-box { margin: 1rem 0; background: #f9fafb; }

@media (max-width: 768px) {
    .quick-order-grid { grid-template-columns: 1fr; }
    .catalog-toolbar { flex-direction: column; align-items: stretch; }
}