/* ═══════════════════════════════════════════════════════════════════════════
   FRESH GROCERY STORE — Public Styles
   Author: Juan Khanjar
═══════════════════════════════════════════════════════════════════════════ */

/* ── CSS Variables (Light Theme) ─────────────────────────────────────────── */
:root {
    --primary:       #22c55e;
    --primary-dark:  #16a34a;
    --secondary:     #f97316;
    --warning:       #f59e0b;
    --danger:        #ef4444;
    --success:       #22c55e;
    --info:          #3b82f6;

    --bg:            #f8fafc;
    --surface:       #ffffff;
    --surface-alt:   #f1f5f9;
    --border:        #e2e8f0;
    --text:          #0f172a;
    --text-light:    #64748b;

    --shadow-sm:     0 1px 3px rgba(0,0,0,.08);
    --shadow-md:     0 4px 12px rgba(0,0,0,.1);
    --shadow-lg:     0 10px 30px rgba(0,0,0,.12);

    --radius-sm:     6px;
    --radius-md:     10px;
    --radius-lg:     16px;
    --radius-xl:     24px;

    --transition:    .25s ease;
    --nav-height:    70px;
    --font:          'Inter', system-ui, -apple-system, sans-serif;
}

/* ── Dark Theme ──────────────────────────────────────────────────────────── */
[data-theme="dark"] {
    --bg:           #0f172a;
    --surface:      #1e293b;
    --surface-alt:  #1e293b;
    --border:       #334155;
    --text:         #f1f5f9;
    --text-light:   #94a3b8;
    --shadow-sm:    0 1px 3px rgba(0,0,0,.3);
    --shadow-md:    0 4px 12px rgba(0,0,0,.4);
    --shadow-lg:    0 10px 30px rgba(0,0,0,.5);
}

/* ── Reset & Base ────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background var(--transition), color var(--transition);
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: var(--font); }

/* ── Container ───────────────────────────────────────────────────────────── */
.container { max-width: 1280px; margin: 0 auto; padding: 0 1.25rem; }

/* ── Section ─────────────────────────────────────────────────────────────── */
.section { padding: 4rem 0; }
.section-alt { background: var(--surface-alt); }
.section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
}
.section-title::after {
    content: '';
    display: block;
    width: 56px;
    height: 4px;
    background: var(--primary);
    border-radius: 2px;
    margin: .75rem auto 0;
}

/* ── Navbar ──────────────────────────────────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(255,255,255,.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition);
}
[data-theme="dark"] .navbar { background: rgba(15,23,42,.85); }
.navbar.scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}
.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
    gap: 2rem;
}
.logo {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
    white-space: nowrap;
}
.logo i { font-size: 1.5rem; }
.nav-menu { display: flex; align-items: center; gap: .5rem; }
.nav-link {
    display: flex;
    align-items: center;
    gap: .4rem;
    padding: .5rem .85rem;
    border-radius: var(--radius-md);
    font-size: .9rem;
    font-weight: 500;
    color: var(--text);
    transition: all var(--transition);
}
.nav-link:hover, .nav-link.active { background: var(--primary); color: #fff; }
.nav-actions { display: flex; align-items: center; gap: .75rem; }

.theme-toggle, .search-toggle, .menu-toggle {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    color: var(--text);
    transition: all var(--transition);
    font-size: .95rem;
}
.theme-toggle:hover, .search-toggle:hover, .menu-toggle:hover {
    background: var(--primary); color: #fff; border-color: var(--primary);
}
.theme-toggle .fa-sun    { display: none; }
[data-theme="dark"] .theme-toggle .fa-moon { display: none; }
[data-theme="dark"] .theme-toggle .fa-sun  { display: block; }
.menu-toggle { display: none; }

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero {
    padding: calc(var(--nav-height) + 4rem) 0 4rem;
    min-height: 60vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg) 0%, var(--surface-alt) 100%);
}
.hero-content { max-width: 640px; }
.hero-title { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; line-height: 1.2; margin-bottom: 1rem; }
.highlight { color: var(--primary); }
.hero-subtitle { font-size: 1.1rem; color: var(--text-light); margin-bottom: 2rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .75rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: .95rem;
    font-weight: 600;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font);
    text-decoration: none;
    white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: .4rem .75rem; font-size: .8rem; }

.btn-whatsapp {
    background: #25d366; color: #fff;
    border: none; border-radius: var(--radius-md);
    padding: .75rem 1.25rem;
    font-size: .9rem; font-weight: 600;
    display: inline-flex; align-items: center; gap: .4rem;
    cursor: pointer; transition: all var(--transition);
    font-family: var(--font);
}
.btn-whatsapp:hover { background: #1da851; transform: translateY(-1px); }

/* ── Grids ───────────────────────────────────────────────────────────────── */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
}
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
}

/* ── Category Card ───────────────────────────────────────────────────────── */
.category-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all var(--transition);
    cursor: pointer;
    display: block;
    color: inherit;
}
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary); }
.category-image { aspect-ratio: 4/3; overflow: hidden; }
.category-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.category-card:hover .category-image img { transform: scale(1.06); }
.category-info { padding: 1rem; text-align: center; }
.category-info h3 { font-size: .95rem; font-weight: 600; }

/* ── Product Card ────────────────────────────────────────────────────────── */
.product-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all var(--transition);
    position: relative;
    display: block;
    color: inherit;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.product-image { aspect-ratio: 1; overflow: hidden; background: var(--surface-alt); position: relative; }
.product-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.product-card:hover .product-image img { transform: scale(1.05); }
.product-info { padding: 1rem; }
.product-name { font-size: 1rem; font-weight: 600; margin-bottom: .25rem; line-height: 1.4; }
.product-category { color: var(--text-light); font-size: .85rem; margin: .25rem 0; }
.product-footer { display: flex; align-items: center; justify-content: space-between; margin-top: .75rem; }
.product-price { font-size: 1.05rem; font-weight: 700; color: var(--primary); }
.badge-featured {
    position: absolute; top: 10px; right: 10px;
    background: var(--primary); color: #fff;
    padding: 4px 10px; border-radius: 20px;
    font-size: .75rem; font-weight: 600; z-index: 1;
}

/* ── Banner Section ──────────────────────────────────────────────────────── */
.banner-section { padding: 2rem 0; }
.banner-slider { position: relative; border-radius: var(--radius-xl); overflow: hidden; aspect-ratio: 3/1; background: var(--surface-alt); }
.banner-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease; }
.banner-slide.active { opacity: 1; position: relative; }
.banner-slide img { width: 100%; height: 100%; object-fit: cover; }
.banner-overlay { position: absolute; inset: 0; background: linear-gradient(to right, rgba(0,0,0,.55) 0%, transparent 60%); display: flex; align-items: center; }
.banner-content { color: #fff; padding: 3rem; max-width: 500px; }
.banner-content h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); font-weight: 800; margin-bottom: 1.25rem; text-shadow: 0 2px 8px rgba(0,0,0,.4); }

/* ── Search Overlay ──────────────────────────────────────────────────────── */
.search-overlay {
    position: fixed; inset: 0; z-index: 2000;
    background: rgba(0,0,0,.6);
    backdrop-filter: blur(6px);
    display: flex; align-items: flex-start; justify-content: center;
    padding-top: 5rem;
    opacity: 0; pointer-events: none;
    transition: opacity .25s ease;
}
.search-overlay.active { opacity: 1; pointer-events: all; }
.search-container {
    background: var(--surface);
    border-radius: var(--radius-xl);
    width: 100%; max-width: 640px; max-height: 80vh;
    display: flex; flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin: 0 1rem;
    position: relative;
}
.search-close {
    position: absolute; top: 1rem; right: 1rem;
    background: var(--surface-alt); border: none; border-radius: 50%;
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    color: var(--text); font-size: 1rem; transition: all var(--transition);
    z-index: 1;
}
.search-close:hover { background: var(--danger); color: #fff; }
.search-box { display: flex; align-items: center; gap: 1rem; padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border); }
.search-box i { color: var(--text-light); font-size: 1.1rem; flex-shrink: 0; }
.search-box input { flex: 1; border: none; background: transparent; font-size: 1.1rem; color: var(--text); outline: none; font-family: var(--font); }
.search-results { overflow-y: auto; padding: 1rem; flex: 1; }
.search-result-item {
    display: flex; align-items: center; gap: 1rem;
    padding: .75rem; border-radius: var(--radius-md);
    cursor: pointer; transition: background var(--transition);
}
.search-result-item:hover { background: var(--surface-alt); }
.search-result-item img { width: 52px; height: 52px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
.search-result-info h4 { font-size: .95rem; font-weight: 600; margin-bottom: .15rem; }
.search-result-info p  { font-size: .8rem; color: var(--text-light); }

/* ── Pagination ──────────────────────────────────────────────────────────── */
.page-btn {
    min-width: 40px; height: 40px;
    background: var(--surface); border: 2px solid var(--border);
    border-radius: var(--radius-md); font-size: .9rem; font-weight: 600;
    color: var(--text); cursor: pointer; transition: all var(--transition);
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0 .75rem;
    text-decoration: none;
}
.page-btn:hover:not([disabled]):not(.active) { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-btn[disabled], .page-btn.disabled { opacity: .4; cursor: not-allowed; pointer-events: none; }

/* ── Empty State ─────────────────────────────────────────────────────────── */
.empty-state { text-align: center; padding: 4rem 0; }
.empty-state h3 { font-size: 1.3rem; margin-bottom: .5rem; }
.empty-state p  { color: var(--text-light); }

/* ── Loading Spinner ─────────────────────────────────────────────────────── */
.loading-spinner {
    display: none; position: fixed;
    inset: 0; z-index: 9999;
    background: rgba(255,255,255,.8);
    align-items: center; justify-content: center;
}
[data-theme="dark"] .loading-spinner { background: rgba(15,23,42,.8); }
.loading-spinner.show { display: flex; }
.spinner {
    width: 48px; height: 48px;
    border: 5px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast ───────────────────────────────────────────────────────────────── */
.toast {
    position: fixed; bottom: 2rem; right: 2rem; z-index: 9999;
    background: var(--text); color: var(--bg);
    padding: 1rem 1.5rem; border-radius: var(--radius-lg);
    display: flex; align-items: center; gap: .75rem;
    font-weight: 500; box-shadow: var(--shadow-lg);
    transform: translateY(120%); opacity: 0;
    transition: all .35s ease;
    max-width: 380px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast .fa-check-circle         { color: var(--success); }
.toast .fa-exclamation-circle   { color: var(--danger); }
.toast .fa-exclamation-triangle { color: var(--warning); }
.toast .fa-info-circle          { color: var(--info); }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer { background: var(--surface); border-top: 1px solid var(--border); padding: 4rem 0 2rem; margin-top: 4rem; }
.footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2.5rem; margin-bottom: 3rem; }
.footer-section h3, .footer-section h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 1rem; }
.footer-section ul { list-style: none; }
.footer-section ul li { margin-bottom: .6rem; font-size: .9rem; color: var(--text-light); }
.footer-section ul li a:hover { color: var(--primary); }
.footer-section p { font-size: .9rem; color: var(--text-light); line-height: 1.7; }
.social-links { display: flex; gap: .75rem; margin-top: 1rem; }
.social-links a {
    width: 38px; height: 38px;
    background: var(--surface-alt); border: 1px solid var(--border);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 1rem; transition: all var(--transition); color: var(--text);
}
.social-links a:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.contact-info li { display: flex; gap: .6rem; align-items: flex-start; }
.contact-info li i { color: var(--primary); margin-top: .2rem; flex-shrink: 0; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 1.5rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-bottom p { font-size: .85rem; color: var(--text-light); }
.footer-bottom a:hover { color: var(--primary); }

/* ── Filter Bar ──────────────────────────────────────────────────────────── */
.filter-bar {
    display: flex; flex-wrap: wrap; gap: 1rem;
    margin-bottom: 2rem; align-items: center;
}
.filter-bar input,
.filter-bar select {
    padding: 12px 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    background: var(--surface);
    color: var(--text);
    font-family: var(--font);
    transition: border-color var(--transition);
    outline: none;
}
.filter-bar input:focus,
.filter-bar select:focus { border-color: var(--primary); }
.filter-bar .search-input {
    flex: 1; min-width: 200px;
    position: relative;
}
.filter-bar .search-input i {
    position: absolute; right: 14px; top: 50%;
    transform: translateY(-50%);
    color: var(--text-light); pointer-events: none;
}

/* ── Breadcrumb ──────────────────────────────────────────────────────────── */
.breadcrumb { margin-bottom: 1.5rem; color: var(--text-light); font-size: .9rem; }
.breadcrumb a { color: var(--text-light); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--primary); }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .menu-toggle  { display: flex; }
    .search-toggle { display: flex; }

    .nav-menu {
        position: fixed; top: var(--nav-height); left: 0; right: 0;
        background: var(--surface); border-bottom: 1px solid var(--border);
        flex-direction: column; align-items: stretch;
        padding: 1rem; gap: .5rem;
        transform: translateY(-120%); opacity: 0; pointer-events: none;
        transition: all .3s ease;
        box-shadow: var(--shadow-lg);
    }
    .nav-menu.active { transform: translateY(0); opacity: 1; pointer-events: all; }
    .nav-link { padding: .75rem 1rem; border-radius: var(--radius-md); }
    .hero { padding-top: calc(var(--nav-height) + 2rem); }
    .banner-slider { aspect-ratio: 16/9; }
    .banner-content { padding: 1.5rem; }
    .product-detail-grid { grid-template-columns: 1fr !important; }
}

@media (max-width: 480px) {
    .products-grid   { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .categories-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
}