/* ============================================
   SRTest eCommerce - Modern Premium Stylesheet
   ============================================ */

:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #818cf8;
    --secondary: #0f172a;
    --accent: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #06b6d4;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--gray-800);
    background: var(--gray-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); transition: var(--transition); }
a:hover { color: var(--primary-dark); }

/* ---- NAVBAR ---- */
.navbar {
    background: linear-gradient(135deg, var(--gray-900) 0%, #1a1a3e 100%) !important;
    padding: 0.8rem 0;
    border: none;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #fff 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.navbar .nav-link {
    color: rgba(255,255,255,0.8) !important;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.navbar .nav-link:hover {
    color: #fff !important;
    background: rgba(255,255,255,0.1);
}
.navbar .form-control {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    color: #fff;
    border-radius: 50px;
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
}
.navbar .form-control::placeholder { color: rgba(255,255,255,0.5); }
.navbar .form-control:focus {
    background: rgba(255,255,255,0.15);
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.2);
    color: #fff;
}
.navbar .btn-outline-light {
    border-radius: 50px;
    font-size: 0.85rem;
    padding: 0.4rem 1rem;
}

/* ---- HERO SLIDER ---- */
.hero-slide {
    min-height: 420px;
    padding: 80px 20px;
    position: relative;
}
.hero-slide h1 {
    font-weight: 800;
    font-size: 2.8rem;
    letter-spacing: -1px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}
.hero-slide .lead {
    font-size: 1.15rem;
    opacity: 0.9;
    font-weight: 400;
}
.hero-slide .btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(79,70,229,0.4);
}
.carousel-control-prev-icon,
.carousel-control-next-icon {
    background-color: rgba(0,0,0,0.3);
    border-radius: 50%;
    padding: 20px;
}

/* ---- SECTION HEADINGS ---- */
section h2, section h4 {
    font-weight: 700;
    color: var(--gray-900);
    letter-spacing: -0.5px;
}
section h2::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    margin-top: 8px;
    border-radius: 2px;
}
.text-center h2::after { margin-left: auto; margin-right: auto; }

/* ---- CARDS (Global) ---- */
.card {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
}
.card:hover {
    box-shadow: var(--shadow-md);
}

/* ---- CATEGORY CARDS ---- */
.category-card {
    border-radius: var(--radius) !important;
    cursor: pointer;
    background: #fff;
}
.category-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg) !important;
}
.category-card .card-body { padding: 1.25rem 0.75rem; }
.category-card h6 {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.85rem;
    margin-bottom: 0;
}
.category-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.5rem !important;
    margin-bottom: 0.5rem;
}

/* ---- PRODUCT CARDS ---- */
.product-card {
    border-radius: var(--radius) !important;
    background: #fff;
    position: relative;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg) !important;
}
.product-card .card-body {
    padding: 1rem 1.1rem;
}
.product-card .card-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--gray-800);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.product-card .text-danger { font-weight: 700; }
.product-card .btn {
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.8rem;
    padding: 0.4rem 1.2rem;
}
.product-img-placeholder {
    background: linear-gradient(145deg, #f0f4ff 0%, #e8ecf4 100%);
    border-radius: var(--radius) var(--radius) 0 0;
    position: relative;
}
.badge {
    font-weight: 600;
    font-size: 0.7rem;
    padding: 0.35em 0.7em;
    border-radius: 6px;
    letter-spacing: 0.3px;
}

/* ---- BUTTONS ---- */
.btn {
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-size: 0.9rem;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    box-shadow: 0 2px 8px rgba(79,70,229,0.25);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #3730a3 100%);
    box-shadow: 0 4px 12px rgba(79,70,229,0.35);
    transform: translateY(-1px);
}
.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(79,70,229,0.25);
}
.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    border-radius: var(--radius);
}

/* ---- FORMS ---- */
.form-control, .form-select {
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.9rem;
    font-size: 0.9rem;
    transition: var(--transition);
    color: var(--gray-800);
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.12);
}
.form-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gray-600);
    margin-bottom: 0.3rem;
}
.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

/* ---- TABLES ---- */
.table {
    font-size: 0.9rem;
}
.table th {
    font-weight: 700;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-500);
    border-bottom: 2px solid var(--gray-200);
    padding: 0.75rem;
}
.table td {
    padding: 0.75rem;
    vertical-align: middle;
    color: var(--gray-700);
}
.table-hover tbody tr:hover {
    background: var(--gray-50);
}

/* ---- ALERTS ---- */
.alert {
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
    animation: slideDown 0.3s ease-out;
}
.alert-success { background: #ecfdf5; color: #065f46; border-left: 4px solid var(--success); }
.alert-danger { background: #fef2f2; color: #991b1b; border-left: 4px solid var(--danger); }
.alert-info { background: #ecfeff; color: #155e75; border-left: 4px solid var(--info); }

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- FOOTER ---- */
footer {
    background: linear-gradient(135deg, var(--gray-900) 0%, #1a1a3e 100%) !important;
    border-top: 1px solid rgba(255,255,255,0.05);
}
footer h5 {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
}
footer a {
    color: var(--gray-400) !important;
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
}
footer a:hover { color: #fff !important; padding-left: 4px; }
footer .text-muted { color: var(--gray-400) !important; font-size: 0.9rem; }

/* ---- BREADCRUMB ---- */
.breadcrumb {
    background: transparent;
    padding: 0;
    font-size: 0.85rem;
}
.breadcrumb-item a { color: var(--primary); text-decoration: none; }
.breadcrumb-item.active { color: var(--gray-500); }

/* ---- PRODUCT DETAIL ---- */
.product-zoom-container {
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.3s ease;
}
.accordion-button {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--gray-700);
}
.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, #f0f4ff, #e8ecf4);
    color: var(--primary-dark);
}

/* ---- AUTH PAGES ---- */
.card .card-body h3 {
    font-weight: 700;
    color: var(--gray-900);
}

/* ---- CHECKOUT ---- */
.form-check-label { font-size: 0.9rem; color: var(--gray-700); }

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    .hero-slide { min-height: 280px; padding: 40px 15px; }
    .hero-slide h1 { font-size: 1.6rem; }
    .hero-slide .lead { font-size: 0.9rem; }
    .navbar-brand { font-size: 1.2rem; }
    section h2 { font-size: 1.4rem; }
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }

/* ---- MISC ---- */
.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
}
.dropdown-item {
    border-radius: 6px;
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
}
.dropdown-item:hover { background: var(--gray-100); }