/* ==========================================================
   GreenCart — White & Green Theme
   ========================================================== */

:root {
    --green-dark: #1b5e20;
    --green: #2e7d32;
    --green-light: #43a047;
    --green-pale: #e8f5e9;
    --green-accent: #66bb6a;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f2f4f2;
    --gray-300: #d9dfd9;
    --gray-500: #7a877a;
    --gray-700: #3b433b;
    --gray-900: #1c211c;
    --danger: #d32f2f;
    --radius: 12px;
    --shadow: 0 4px 14px rgba(27, 94, 32, 0.08);
    --shadow-lg: 0 10px 30px rgba(27, 94, 32, 0.14);
    --transition: all 0.25s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--white);
    color: var(--gray-900);
    line-height: 1.6;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { text-decoration: none; color: inherit; }

ul { list-style: none; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.btn {
    display: inline-block;
    padding: 13px 30px;
    border-radius: 50px;
    border: none;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: var(--green);
    color: var(--white);
    box-shadow: var(--shadow);
}
.btn-primary:hover { background: var(--green-dark); transform: translateY(-2px); }

.btn-outline {
    background: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--green-dark); }

.btn-block { width: 100%; }

.btn-danger { background: var(--danger); color: var(--white); }
.btn-danger:hover { background: #a51c1c; }

.btn-sm { padding: 8px 16px; font-size: 13px; }

.section-title {
    text-align: center;
    margin-bottom: 40px;
}
.section-title span {
    color: var(--green);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 13px;
}
.section-title h2 {
    font-size: 34px;
    color: var(--gray-900);
    margin-top: 6px;
}
.section-title p {
    color: var(--gray-500);
    max-width: 520px;
    margin: 10px auto 0;
}

/* ==================== NAVBAR ==================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 999;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}
.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
}
.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--green-dark);
    display: flex;
    align-items: center;
    gap: 6px;
}
.logo span { color: var(--green-accent); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 34px;
}
.nav-links a {
    font-weight: 500;
    color: var(--gray-700);
    position: relative;
    padding: 6px 0;
    transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--green); }
.nav-links a:hover::after, .nav-links a.active::after {
    content: '';
    position: absolute;
    left: 0; bottom: -2px;
    width: 100%; height: 2px;
    background: var(--green);
}

.nav-cart {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--green-pale);
    padding: 9px 16px;
    border-radius: 50px;
    font-weight: 600;
    color: var(--green-dark);
    transition: var(--transition);
}
.nav-cart:hover { background: var(--green); color: var(--white); }
.cart-badge {
    position: absolute;
    top: -8px; right: -8px;
    background: var(--green-dark);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    width: 20px; height: 20px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.nav-cart:hover .cart-badge { background: var(--white); color: var(--green-dark); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
}
.nav-toggle span {
    width: 26px; height: 3px;
    background: var(--green-dark);
    border-radius: 3px;
    transition: var(--transition);
}

/* ==================== HERO ==================== */
.hero {
    background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 55%, var(--green-light) 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}
.hero .container {
    display: flex;
    align-items: center;
    gap: 40px;
    padding-top: 90px;
    padding-bottom: 90px;
    min-height: 520px;
}
.hero-text { flex: 1; z-index: 2; }
.hero-text span.tag {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    padding: 7px 18px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 18px;
}
.hero-text h1 {
    font-size: 48px;
    line-height: 1.2;
    font-weight: 800;
    margin-bottom: 18px;
}
.hero-text h1 em {
    font-style: normal;
    color: #c8f7c5;
}
.hero-text p {
    font-size: 17px;
    max-width: 460px;
    opacity: 0.92;
    margin-bottom: 30px;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}
.hero-image .circle {
    width: 380px; height: 380px;
    border-radius: 50%;
    background: rgba(255,255,255,0.12);
    display: flex; align-items: center; justify-content: center;
    font-size: 130px;
}
.hero-blob {
    position: absolute;
    width: 600px; height: 600px;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
    top: -200px; right: -150px;
}

/* ==================== BADGES / STRIP ==================== */
.perks {
    background: var(--green-pale);
    padding: 26px 0;
}
.perks .container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}
.perk h4 { color: var(--green-dark); font-size: 15px; margin-bottom: 4px; }
.perk p { color: var(--gray-500); font-size: 13px; }

/* ==================== PRODUCTS ==================== */
.products {
    padding: 80px 0;
}
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 26px;
}
.product-card {
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
}
.product-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
    border-color: transparent;
}
.product-img {
    height: 190px;
    background: var(--green-pale);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 56px;
    color: var(--green-accent);
    overflow: hidden;
}
.product-img img { width: 100%; height: 100%; object-fit: cover; }

.sale-tag {
    position: absolute;
    top: 14px; left: 14px;
    background: var(--danger);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 50px;
    z-index: 2;
}
.product-body {
    padding: 18px 20px 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.product-body h3 {
    font-size: 16px;
    margin-bottom: 6px;
    color: var(--gray-900);
}
.product-body p.desc {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 14px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.price-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
}
.price {
    font-size: 18px;
    font-weight: 800;
    color: var(--green-dark);
}
.old-price {
    font-size: 13px;
    color: var(--gray-500);
    text-decoration: line-through;
    margin-left: 6px;
    font-weight: 400;
}
.add-cart-btn {
    background: var(--green);
    color: var(--white);
    border: none;
    width: 40px; height: 40px;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}
.add-cart-btn:hover { background: var(--green-dark); transform: scale(1.08); }

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}
.empty-state .icon { font-size: 60px; margin-bottom: 16px; }

/* ==================== FOOTER ==================== */
.site-footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 20px;
    margin-top: 40px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
    gap: 30px;
    padding-bottom: 34px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-grid h4 { color: var(--white); margin-bottom: 16px; font-size: 15px; }
.footer-grid .logo { color: var(--white); margin-bottom: 12px; }
.footer-grid p { font-size: 13px; color: var(--gray-500); }
.footer-grid ul li { margin-bottom: 10px; font-size: 13.5px; }
.footer-grid ul li a:hover { color: var(--green-accent); }
.footer-bottom {
    text-align: center;
    padding-top: 20px;
    font-size: 13px;
    color: var(--gray-500);
}

/* ==================== CART / CHECKOUT PAGES ==================== */
.page-header {
    background: var(--green-pale);
    padding: 40px 0;
    text-align: center;
}
.page-header h1 { color: var(--green-dark); font-size: 30px; }
.page-header p { color: var(--gray-500); margin-top: 6px; }

.page-wrap { padding: 60px 0; }

.alert {
    padding: 14px 20px;
    border-radius: var(--radius);
    margin-bottom: 24px;
    font-weight: 500;
    font-size: 14px;
}
.alert-success { background: var(--green-pale); color: var(--green-dark); border: 1px solid var(--green-accent); }
.alert-error { background: #fdecea; color: var(--danger); border: 1px solid #f5b5b0; }

.cart-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    align-items: start;
}

.cart-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.cart-table th {
    background: var(--green-pale);
    color: var(--green-dark);
    text-align: left;
    padding: 14px 16px;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.cart-table td {
    padding: 16px;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}
.cart-item-info { display: flex; align-items: center; gap: 14px; }
.cart-item-thumb {
    width: 56px; height: 56px;
    border-radius: 8px;
    background: var(--green-pale);
    display: flex; align-items: center; justify-content: center;
    font-size: 24px;
    color: var(--green-accent);
    overflow: hidden;
    flex-shrink: 0;
}
.cart-item-thumb img { width: 100%; height: 100%; object-fit: cover; }
.cart-item-info strong { font-size: 14.5px; }

.qty-form { display: flex; align-items: center; gap: 8px; }
.qty-form input {
    width: 55px;
    padding: 7px;
    text-align: center;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
}
.qty-form button {
    background: var(--green-pale);
    border: none;
    padding: 7px 12px;
    border-radius: 6px;
    cursor: pointer;
    color: var(--green-dark);
    font-weight: 600;
}
.qty-form button:hover { background: var(--green); color: var(--white); }
.remove-link { color: var(--danger); font-size: 13px; font-weight: 600; }

.summary-card {
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 100px;
}
.summary-card h3 { margin-bottom: 18px; color: var(--gray-900); }
.summary-row {
    display: flex; justify-content: space-between;
    padding: 10px 0;
    font-size: 14.5px;
    color: var(--gray-700);
    border-bottom: 1px dashed var(--gray-300);
}
.summary-row.total {
    font-weight: 800;
    font-size: 18px;
    color: var(--green-dark);
    border-bottom: none;
    padding-top: 16px;
}

/* ==================== FORMS (checkout / admin) ==================== */
.form-card {
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    margin-bottom: 7px;
    font-weight: 600;
    font-size: 13.5px;
    color: var(--gray-700);
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 14.5px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--gray-50);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--green);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(46,125,50,0.12);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ==================== ADMIN ==================== */
.admin-body { background: var(--gray-100); min-height: 100vh; }
.admin-topbar {
    background: var(--green-dark);
    color: var(--white);
    padding: 16px 0;
}
.admin-topbar .container { display: flex; justify-content: space-between; align-items: center; }
.admin-topbar .logo { color: var(--white); }
.admin-topbar .logo span { color: var(--green-accent); }
.admin-topbar a.logout {
    background: rgba(255,255,255,0.15);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 13.5px;
    font-weight: 600;
}
.admin-topbar a.logout:hover { background: rgba(255,255,255,0.3); }

.admin-wrap { padding: 40px 0 80px; }

.admin-grid {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 26px;
    align-items: start;
}

.stat-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}
.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--green);
}
.stat-card h4 { color: var(--gray-500); font-size: 13px; margin-bottom: 8px; text-transform: uppercase; }
.stat-card p { font-size: 26px; font-weight: 800; color: var(--green-dark); }

.admin-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 26px;
    box-shadow: var(--shadow);
}
.admin-card h3 {
    margin-bottom: 20px;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th {
    text-align: left;
    padding: 10px 12px;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--gray-500);
    border-bottom: 2px solid var(--gray-100);
}
.admin-table td {
    padding: 12px;
    border-bottom: 1px solid var(--gray-100);
    font-size: 14px;
    vertical-align: middle;
}
.admin-table img.thumb { width: 42px; height: 42px; object-fit: cover; border-radius: 6px; }
.status-pill {
    background: var(--green-pale);
    color: var(--green-dark);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
}
.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--danger);
    font-size: 13px;
    font-weight: 600;
}

.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--green-dark), var(--green-light));
    padding: 20px;
}
.login-card {
    background: var(--white);
    width: 100%;
    max-width: 380px;
    padding: 40px 34px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}
.login-card .logo { justify-content: center; margin-bottom: 6px; }
.login-card p.sub { color: var(--gray-500); font-size: 13.5px; margin-bottom: 26px; }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 991px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .cart-layout { grid-template-columns: 1fr; }
    .admin-grid { grid-template-columns: 1fr; }
    .stat-cards { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-text h1 { font-size: 38px; }
    .hero-image .circle { width: 280px; height: 280px; font-size: 90px; }
}

@media (max-width: 767px) {
    .nav-toggle { display: flex; }
    .nav-links {
        position: fixed;
        top: 74px; left: 0; right: 0;
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 10px 24px 20px;
        box-shadow: 0 8px 14px rgba(0,0,0,0.06);
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
        z-index: 998;
    }
    .nav-links.open { transform: translateY(0); opacity: 1; }
    .nav-links a { width: 100%; padding: 12px 0; border-bottom: 1px solid var(--gray-100); }
    .nav-links a::after { display: none; }
    .nav-cart { margin-top: 10px; }

    .hero .container { flex-direction: column; text-align: center; padding-top: 60px; padding-bottom: 60px; }
    .hero-text p { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }
    .hero-image { order: -1; }
    .hero-image .circle { width: 220px; height: 220px; font-size: 70px; }

    .perks .container { grid-template-columns: repeat(2, 1fr); }
    .section-title h2 { font-size: 26px; }
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .stat-cards { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .product-grid { grid-template-columns: 1fr 1fr; }
    .hero-text h1 { font-size: 30px; }
    .cart-table { font-size: 13px; }
    .cart-item-info strong { font-size: 13px; }
    .stat-cards { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
}