/* ========== Modern E-Commerce Design System ========== */

:root {
    /* Etkili Express - Kırmızı Siyah Beyaz Kurumsal Palet */
    --primary: #dc2626;
    --primary-hover: #b91c1c;
    --primary-light: #ef4444;
    --primary-dark: #991b1b;
    --secondary: #1f2937;
    --accent: #fef2f2;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #dc2626;
    
    /* Neutrals */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

html {
    position: relative;
    min-height: 100%;
}

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== MODERN BUTTONS ========== */

.btn {
    transition: var(--transition);
    font-weight: 600;
    border-radius: var(--radius-md);
}

.btn:focus,
.btn:active:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    border: none;
    box-shadow: 0 4px 14px rgba(220, 38, 38, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline-primary {
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.25);
}

/* ========== MODERN FORMS ========== */

.form-control {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    transition: var(--transition);
    background-color: var(--bg-primary);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
    background-color: var(--bg-primary);
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--text-muted);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}

.form-check-input {
    border: 2px solid var(--border-color);
    width: 1.25rem;
    height: 1.25rem;
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* ========== MODERN CARDS ========== */

.card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    background: var(--bg-primary);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-header {
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* ========== BADGES ========== */

.badge {
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.8rem;
}

/* ========== ALERTS ========== */

.alert {
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    padding: 1rem 1.25rem;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: var(--success);
    color: #065f46;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
    color: #991b1b;
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: var(--warning);
    color: #92400e;
}

.alert-info {
    background-color: rgba(14, 165, 233, 0.1);
    border-color: var(--secondary);
    color: #075985;
}

/* ========== UTILITIES ========== */

.rounded-modern {
    border-radius: var(--radius-xl) !important;
}

.shadow-modern {
    box-shadow: var(--shadow-lg) !important;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== PRODUCT CARDS ========== */

.product-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition);
    background: white;
}

.product-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-8px);
}

.product-card img {
    transition: var(--transition);
}

.product-card:hover img {
    transform: scale(1.05);
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

/* ========== ANIMATIONS ========== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* ========== LOADING STATES ========== */

.skeleton {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ========== RESPONSIVE IMAGES ========== */

img {
    max-width: 100%;
    height: auto;
}

/* ========== CUSTOM SCROLLBAR ========== */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ========== TABLE STYLES ========== */

.table {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table thead {
    background: var(--bg-tertiary);
    font-weight: 600;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background: var(--bg-secondary);
}

/* ========== MODAL IMPROVEMENTS ========== */

.modal-content {
    border: none;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
}

/* ========== BREADCRUMB ========== */

.breadcrumb {
    background: transparent;
    padding: 0;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    color: var(--text-muted);
    font-size: 1.2rem;
}

.breadcrumb-item a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb-item a:hover {
    color: var(--primary-hover);
}

/* ========== PAGINATION ========== */

.pagination .page-link {
    border-radius: var(--radius-md);
    margin: 0 0.25rem;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    transition: var(--transition);
}

.pagination .page-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.pagination .page-item.active .page-link {
    background: var(--primary);
    border-color: var(--primary);
}