:root {
    --ecg-green: #0b3d2e;
    --ecg-green-600: #14513d;
    --ecg-green-700: #093124;
    --ecg-cream: #f4f1ea;
    --ecg-bg: #efece4;
    --ecg-card: #ffffff;
    --ecg-border: #e3ded3;
    --ecg-text: #1d1d1b;
    --ecg-muted: #7a7568;
    --ecg-price: #14513d;
    --ecg-radius: 6px;
    --ecg-shadow: 0 1px 3px rgba(0,0,0,.06);
    --header-h: 56px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--ecg-bg);
    color: var(--ecg-text);
    font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    font-size: 14px;
    line-height: 1.45;
}

a { color: var(--ecg-green); text-decoration: none; }
a:hover { color: var(--ecg-green-600); }

/* ===================== TOP HEADER ===================== */
.ecg-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: var(--ecg-green);
    color: #fff;
    height: var(--header-h);
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 0 18px;
    box-shadow: 0 2px 6px rgba(0,0,0,.15);
}

.ecg-brand {
    display: flex;
    flex-direction: column;
    line-height: 1;
    color: #fff;
    white-space: nowrap;
}
.ecg-brand .logo { font-size: 20px; font-weight: 800; letter-spacing: .5px; }
.ecg-brand .tag { font-size: 8.5px; letter-spacing: 1.4px; color: #cfe3da; margin-top: 3px; }

.ecg-search {
    flex: 1 1 auto;
    max-width: 520px;
    position: relative;
}
.ecg-search input {
    width: 100%;
    height: 34px;
    border: none;
    border-radius: 4px;
    padding: 0 12px 0 34px;
    font-size: 13px;
    background: #fff;
    color: #222;
}
.ecg-search .ico {
    position: absolute;
    left: 11px; top: 50%; transform: translateY(-50%);
    color: #8a8a8a; font-size: 14px;
}

.ecg-header-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 6px;
}

.ecg-icon-btn {
    color: #fff;
    background: transparent;
    border: none;
    height: 34px;
    min-width: 34px;
    padding: 0 10px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 13px;
    position: relative;
}
.ecg-icon-btn:hover { background: rgba(255,255,255,.12); color: #fff; }

.cart-badge {
    position: absolute;
    top: 1px; right: 1px;
    background: #d9822b;
    color: #fff;
    border-radius: 10px;
    font-size: 10px;
    line-height: 1;
    padding: 2px 5px;
    font-weight: 700;
}

/* language switch */
.lang-switch { display: inline-flex; border: 1px solid rgba(255,255,255,.4); border-radius: 4px; overflow: hidden; }
.lang-switch a { color: #cfe3da; padding: 5px 9px; font-size: 12px; font-weight: 700; }
.lang-switch a.active { background: #fff; color: var(--ecg-green); }

/* dropdown user */
.ecg-user { position: relative; }
.ecg-user-menu {
    position: absolute; right: 0; top: 42px;
    background: #fff; color: #222;
    border: 1px solid var(--ecg-border);
    border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0,0,0,.15);
    min-width: 200px;
    padding: 6px;
    display: none;
}
.ecg-user-menu.show { display: block; }
.ecg-user-menu a, .ecg-user-menu button {
    display: block; width: 100%; text-align: left;
    padding: 8px 12px; border-radius: 4px; color: #333;
    background: none; border: none; font-size: 13px; cursor: pointer;
}
.ecg-user-menu a:hover, .ecg-user-menu button:hover { background: var(--ecg-cream); }
.ecg-user-menu .divider { height: 1px; background: var(--ecg-border); margin: 5px 0; }

/* ===================== LAYOUT ===================== */
.ecg-shell { display: flex; align-items: flex-start; gap: 0; }

.ecg-sidebar {
    width: 240px;
    flex: 0 0 240px;
    background: #fff;
    border-right: 1px solid var(--ecg-border);
    padding: 14px 14px 40px;
    min-height: calc(100vh - var(--header-h));
    position: sticky;
    top: var(--header-h);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
}

.ecg-content { flex: 1 1 auto; padding: 14px 18px 60px; min-width: 0; }

/* ===================== FILTERS ===================== */
.filter-block { margin-bottom: 14px; }
.filter-block > label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .6px;
    text-transform: uppercase;
    color: var(--ecg-muted);
    margin-bottom: 5px;
}
.filter-block select,
.filter-block input {
    width: 100%;
    height: 34px;
    border: 1px solid var(--ecg-border);
    border-radius: 4px;
    padding: 0 8px;
    font-size: 13px;
    background: #fff;
    color: #333;
}
.filter-price { display: flex; gap: 6px; }
.filter-actions { display: flex; gap: 8px; margin-top: 6px; }

/* ===================== TOOLBAR ===================== */
.ecg-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.ecg-count { color: var(--ecg-muted); font-size: 13px; }
.ecg-count b { color: var(--ecg-text); }
.ecg-sort { display: flex; align-items: center; gap: 8px; }
.ecg-sort select { height: 34px; border: 1px solid var(--ecg-border); border-radius: 4px; padding: 0 8px; font-size: 13px; }

/* ===================== PRODUCT GRID ===================== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.product-card {
    background: var(--ecg-card);
    border: 1px solid var(--ecg-border);
    border-radius: var(--ecg-radius);
    padding: 12px;
    display: flex;
    flex-direction: column;
    transition: box-shadow .15s, transform .15s;
}
.product-card:hover { box-shadow: 0 6px 18px rgba(0,0,0,.10); transform: translateY(-2px); }

.product-thumb {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    background: #fff;
}
.product-thumb img { max-width: 100%; max-height: 100%; object-fit: contain; }
.product-thumb .placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    color: #cbcbcb;
}
.product-thumb svg { width: 130px; height: 52px; }

.p-brand { font-size: 10.5px; font-weight: 700; letter-spacing: .8px; text-transform: uppercase; color: var(--ecg-muted); }
.p-model { font-size: 14px; font-weight: 700; margin: 2px 0 1px; }
.p-color { font-size: 12px; color: var(--ecg-muted); margin-bottom: 6px; }
.p-price { font-size: 15px; font-weight: 800; color: var(--ecg-price); margin-bottom: 8px; }

.p-stock { font-size: 11px; color: #6a6a6a; line-height: 1.5; margin-bottom: 2px; }
.p-stock .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 5px; vertical-align: middle; }
.dot-green { background: #2e9e5b; }
.dot-amber { background: #d9822b; }
.dot-grey { background: #bbb; }

.p-actions { margin-top: auto; display: flex; gap: 6px; padding-top: 10px; }

/* ===================== BUTTONS ===================== */
.btn-ecg {
    background: var(--ecg-green);
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: background .15s;
    text-align: center;
}
.btn-ecg:hover { background: var(--ecg-green-600); color: #fff; }
.btn-ecg:disabled { opacity: .5; cursor: not-allowed; }
.btn-ecg-outline {
    background: #fff;
    color: var(--ecg-green);
    border: 1px solid var(--ecg-green);
}
.btn-ecg-outline:hover { background: var(--ecg-cream); color: var(--ecg-green); }
.btn-sm { padding: 6px 10px; font-size: 12px; }
.btn-block { width: 100%; }
.btn-light-ghost { background: #eee7d9; color: #6a6a6a; border: none; }

/* ===================== PAGINATION ===================== */
.ecg-pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 26px;
    flex-wrap: wrap;
}
.ecg-pager a, .ecg-pager span {
    min-width: 34px; height: 34px;
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--ecg-border);
    border-radius: 4px;
    padding: 0 10px;
    font-size: 13px;
    background: #fff; color: #444;
}
.ecg-pager a:hover { border-color: var(--ecg-green); color: var(--ecg-green); }
.ecg-pager .current { background: var(--ecg-green); color: #fff; border-color: var(--ecg-green); }
.ecg-pager .disabled { opacity: .45; pointer-events: none; }

/* ===================== CARDS / PANELS ===================== */
.panel {
    background: #fff;
    border: 1px solid var(--ecg-border);
    border-radius: 8px;
    box-shadow: var(--ecg-shadow);
    padding: 18px;
    margin-bottom: 18px;
}
.panel h2, .panel h1 { margin-top: 0; }

.table-ecg { width: 100%; border-collapse: collapse; }
.table-ecg th, .table-ecg td { padding: 10px; border-bottom: 1px solid var(--ecg-border); text-align: left; font-size: 13px; vertical-align: middle; }
.table-ecg th { background: #f7f5ef; font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--ecg-muted); }
.table-ecg tbody tr:hover { background: #fafaf7; }
.text-right { text-align: right !important; }
.text-center { text-align: center !important; }

.badge-status { padding: 3px 9px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.st-0 { background: #fdf0d5; color: #a06400; }
.st-1 { background: #dbeafe; color: #1e5bb8; }
.st-2 { background: #e6e0f8; color: #6b3fb8; }
.st-3 { background: #d7f0df; color: #1e7d45; }
.st-4 { background: #fadada; color: #b3261e; }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; }
.form-control {
    width: 100%; height: 38px;
    border: 1px solid var(--ecg-border); border-radius: 5px;
    padding: 0 10px; font-size: 14px;
}
textarea.form-control { height: auto; padding: 8px 10px; }
.field-validation-error, .validation-summary-errors { color: #b3261e; font-size: 12.5px; }
.validation-summary-errors ul { margin: 0; padding-left: 18px; }

.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; font-size: 13px; }
.alert-success { background: #d7f0df; color: #1e7d45; }
.alert-info { background: #e2eef9; color: #1e5bb8; }
.alert-warning { background: #fdf0d5; color: #a06400; }

/* ===================== AUTH ===================== */
.auth-wrap {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #0b3d2e 0%, #14513d 100%);
    padding: 20px;
}
.auth-card {
    width: 100%; max-width: 400px;
    background: #fff; border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
    padding: 34px 30px;
}
.auth-logo { text-align: center; margin-bottom: 20px; }
.auth-logo .logo { font-size: 30px; font-weight: 800; color: var(--ecg-green); letter-spacing: 1px; }
.auth-logo .tag { font-size: 9px; letter-spacing: 2px; color: var(--ecg-muted); }
.auth-lang { text-align: center; margin-top: 16px; font-size: 12px; }

/* ===================== ADMIN ===================== */
.admin-shell { display: flex; align-items: stretch; }
.admin-side {
    width: 220px; flex: 0 0 220px;
    background: var(--ecg-green); color: #cfe3da;
    min-height: calc(100vh - var(--header-h));
    padding: 14px 0;
    position: sticky; top: var(--header-h);
}
.admin-side a {
    display: block; padding: 11px 20px; color: #cfe3da; font-size: 14px;
}
.admin-side a:hover, .admin-side a.active { background: rgba(255,255,255,.10); color: #fff; }
.admin-content { flex: 1 1 auto; padding: 20px 24px; min-width: 0; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.stat-card { background: #fff; border: 1px solid var(--ecg-border); border-radius: 8px; padding: 18px; }
.stat-card .val { font-size: 26px; font-weight: 800; color: var(--ecg-green); }
.stat-card .lbl { font-size: 12px; color: var(--ecg-muted); text-transform: uppercase; letter-spacing: .5px; }

/* ===================== MOBILE ===================== */
.filter-toggle { display: none; }
.sidebar-backdrop { display: none; }

@media (max-width: 1200px) {
    .product-grid { grid-template-columns: repeat(3, 1fr); }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .ecg-brand .tag { display: none; }
}
@media (max-width: 820px) {
    .filter-toggle {
        display: inline-flex; align-items: center; gap: 6px;
        margin-bottom: 12px;
    }
    .ecg-sidebar {
        position: fixed;
        left: 0; top: 0; bottom: 0;
        z-index: 1060;
        width: 82%; max-width: 320px;
        transform: translateX(-100%);
        transition: transform .25s ease;
        max-height: 100vh;
        box-shadow: 4px 0 24px rgba(0,0,0,.2);
    }
    .ecg-sidebar.open { transform: translateX(0); }
    .sidebar-backdrop.show {
        display: block; position: fixed; inset: 0;
        background: rgba(0,0,0,.4); z-index: 1055;
    }
    .admin-side { position: fixed; transform: translateX(-100%); z-index: 1060; transition: transform .25s; }
    .admin-side.open { transform: translateX(0); }
}
@media (max-width: 560px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .ecg-brand .logo { font-size: 17px; }
    .ecg-content { padding: 12px; }
    .ecg-header { gap: 10px; padding: 0 12px; }
    .stat-grid { grid-template-columns: 1fr 1fr; }
    .hide-mobile { display: none !important; }
}
@media (max-width: 400px) {
    .product-grid { grid-template-columns: 1fr; }
}

/* Nút đặt hàng đang trong giỏ (dấu ✓) */
.js-add-cart.in-cart{background:#e7f3ec;border:1px solid #1f7a4d;color:#1f7a4d;}
.js-add-cart.in-cart:hover{background:#d9ecdf;}