/* ===== CSS Variables ===== */
:root {
    --primary: #FF6B35;
    --primary-dark: #E55A2B;
    --primary-light: #FF8F5C;
    --secondary: #1A535C;
    --secondary-dark: #0F3D44;
    --accent: #FFE66D;
    --accent-dark: #F5D93D;
    --success: #4CAF50;
    --success-light: #81C784;
    --warning: #FF9800;
    --danger: #F44336;
    --danger-light: #EF5350;
    
    --background: #FAFBFC;
    --surface: #FFFFFF;
    --surface-elevated: #FFFFFF;
    --border: #E8EAED;
    --border-light: #F1F3F4;
    
    --text-primary: #1A1A2E;
    --text-secondary: #5F6368;
    --text-muted: #9AA0A6;
    --text-inverse: #FFFFFF;
    
    --whatsapp: #25D366;
    --whatsapp-dark: #128C7E;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 50px rgba(0,0,0,0.15);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
}

input, select, textarea {
    font-family: inherit;
    outline: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Navbar ===== */
.navbar {
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    font-size: 1.8rem;
}

.nav-search {
    flex: 1;
    max-width: 500px;
    display: flex;
    background: var(--background);
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 2px solid var(--border);
    transition: var(--transition);
}

.nav-search:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.nav-search input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    background: transparent;
    font-size: 0.95rem;
}

.nav-search button {
    padding: 12px 20px;
    background: var(--primary);
    color: var(--text-inverse);
    transition: var(--transition);
}

.nav-search button:hover {
    background: var(--primary-dark);
}

.nav-links {
    display: flex;
    gap: 10px;
}

.nav-links a {
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    color: var(--text-secondary);
}

.nav-links a:hover,
.nav-links a.active {
    background: var(--primary);
    color: var(--text-inverse);
}

.mobile-menu-btn {
    display: none;
    padding: 10px;
    background: transparent;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    padding: 10px 20px 20px;
    background: var(--surface);
    border-top: 1px solid var(--border);
}

.mobile-menu a {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
    font-weight: 500;
}

.mobile-menu a:last-child {
    border-bottom: none;
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    color: var(--text-inverse);
    padding: 80px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.hero h1 .highlight {
    color: var(--accent);
}

.hero p {
    font-size: 1.3rem;
    opacity: 0.95;
    margin-bottom: 10px;
}

.hero-subtitle {
    font-size: 1.1rem !important;
    opacity: 0.8 !important;
    margin-bottom: 30px !important;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 50px;
    position: relative;
    z-index: 1;
}

.stat {
    text-align: center;
}

.stat span,
.stat i {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
}

.stat p {
    font-size: 0.95rem;
    opacity: 0.9;
    margin-top: 5px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary);
    color: var(--text-inverse);
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-inverse);
    border-color: var(--text-inverse);
}

.btn-secondary:hover {
    background: var(--text-inverse);
    color: var(--secondary);
}

.btn-whatsapp {
    background: var(--whatsapp);
    color: var(--text-inverse);
}

.btn-whatsapp:hover {
    background: var(--whatsapp-dark);
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--danger);
    color: var(--text-inverse);
}

.btn-danger:hover {
    background: var(--danger-light);
}

.btn-success {
    background: var(--success);
    color: var(--text-inverse);
}

.btn-success:hover {
    background: var(--success-light);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--text-inverse);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn-xs {
    padding: 6px 12px;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.btn-success {
    background: var(--success);
    color: var(--text-inverse);
}

.btn-success:hover {
    background: var(--success-light);
}

.btn-warning {
    background: var(--warning);
    color: var(--text-inverse);
}

.btn-warning:hover {
    opacity: 0.9;
}

.btn-danger {
    background: var(--danger);
    color: var(--text-inverse);
}

.btn-danger:hover {
    background: var(--danger-light);
}

/* ===== Categories Section ===== */
.categories-section {
    padding: 40px 20px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.categories-section h2 {
    text-align: center;
    margin-bottom: 25px;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.category-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--background);
    border: 2px solid var(--border);
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.category-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.category-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

.category-btn i {
    font-size: 1.1rem;
}

/* ===== Products Section ===== */
.products-section {
    padding: 60px 20px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.section-header h2 {
    font-size: 1.8rem;
    color: var(--text-primary);
}

.sort-options select {
    padding: 10px 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    background: var(--surface);
    cursor: pointer;
    transition: var(--transition);
}

.sort-options select:focus {
    border-color: var(--primary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

/* ===== Product Card ===== */
.product-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: var(--background);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--success);
    color: var(--text-inverse);
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.product-category {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0,0,0,0.7);
    color: var(--text-inverse);
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

.product-info {
    padding: 20px;
}

.product-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 15px;
}

.product-seller {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 15px;
    cursor: pointer;
    transition: var(--transition);
}

.product-seller:hover {
    color: var(--primary);
}

.product-seller i {
    color: var(--success);
}

.product-actions {
    display: flex;
    gap: 10px;
}

.product-actions .btn {
    flex: 1;
    justify-content: center;
    padding: 12px 15px;
    font-size: 0.9rem;
}

/* ===== Loading & Empty States ===== */
.loading-spinner {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.loading-spinner i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.no-products {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.no-products i {
    font-size: 4rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* ===== Trust Section ===== */
.trust-section {
    background: var(--secondary);
    color: var(--text-inverse);
    padding: 70px 20px;
}

.trust-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.trust-card {
    text-align: center;
    padding: 30px 20px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.trust-card:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-5px);
}

.trust-card i {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 15px;
}

.trust-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.trust-card p {
    font-size: 0.95rem;
    opacity: 0.85;
}

/* ===== Footer ===== */
.footer {
    background: var(--text-primary);
    color: var(--text-inverse);
    padding: 60px 20px 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--accent);
}

.footer-col p {
    font-size: 0.95rem;
    opacity: 0.8;
    margin-bottom: 10px;
}

.footer-col a {
    display: block;
    font-size: 0.95rem;
    opacity: 0.8;
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-col a:hover {
    opacity: 1;
    color: var(--accent);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

.footer-bottom i {
    color: var(--danger);
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    z-index: 2000;
    padding: 20px;
    overflow-y: auto;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--radius-lg);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-muted);
    z-index: 10;
    transition: var(--transition);
}

.close-modal:hover {
    color: var(--danger);
}

.modal-body {
    padding: 0;
}

.modal-product-image {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.modal-product-info {
    padding: 30px;
}

.modal-product-info h2 {
    font-size: 1.6rem;
    margin-bottom: 10px;
}

.modal-product-info .product-price {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.modal-product-info .product-description {
    display: block;
    -webkit-line-clamp: unset;
    margin-bottom: 20px;
    font-size: 1rem;
    line-height: 1.7;
}

.modal-seller-info {
    background: var(--background);
    padding: 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.modal-seller-info h4 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

.modal-seller-info p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.modal-actions {
    display: flex;
    gap: 15px;
}

.modal-actions .btn {
    flex: 1;
    justify-content: center;
}

/* ===== Auth Pages ===== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
}

.auth-container {
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 450px;
    overflow: hidden;
}

.auth-header {
    background: var(--primary);
    color: var(--text-inverse);
    padding: 30px;
    text-align: center;
}

.auth-header .logo {
    justify-content: center;
    font-size: 2rem;
    color: var(--text-inverse);
    margin-bottom: 10px;
}

.auth-header p {
    opacity: 0.9;
}

.auth-form {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--background);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background: var(--surface);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group .input-icon {
    position: relative;
}

.form-group .input-icon i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.form-group .input-icon input {
    padding-left: 45px;
}

.form-error {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 5px;
    display: none;
}

.form-error.show {
    display: block;
}

.auth-form .btn {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 1.05rem;
}

.auth-links {
    text-align: center;
    margin-top: 20px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.auth-links a {
    color: var(--primary);
    font-weight: 500;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* ===== Dashboard ===== */
.dashboard {
    min-height: 100vh;
    display: flex;
}

.sidebar {
    width: 260px;
    background: var(--secondary);
    color: var(--text-inverse);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 25px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header .logo {
    color: var(--text-inverse);
    font-size: 1.4rem;
}

.sidebar-nav {
    padding: 20px 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 25px;
    font-size: 0.95rem;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255,255,255,0.1);
    border-left-color: var(--accent);
}

.sidebar-nav a i {
    font-size: 1.1rem;
    width: 20px;
}

.sidebar-user {
    padding: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: auto;
}

.sidebar-user p {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-bottom: 5px;
}

.sidebar-user h4 {
    font-size: 1rem;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 30px;
    background: var(--background);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.dashboard-header h1 {
    font-size: 1.8rem;
    color: var(--text-primary);
}

/* ===== Stats Cards ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--surface);
    padding: 25px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.stat-card .icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.stat-card .icon.primary {
    background: rgba(255, 107, 53, 0.1);
    color: var(--primary);
}

.stat-card .icon.success {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success);
}

.stat-card .icon.warning {
    background: rgba(255, 152, 0, 0.1);
    color: var(--warning);
}

.stat-card .icon.danger {
    background: rgba(244, 67, 54, 0.1);
    color: var(--danger);
}

.stat-card h3 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.stat-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ===== Tables ===== */
.table-container {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid var(--border);
}

.table-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.table-header h2 {
    font-size: 1.3rem;
    color: var(--text-primary);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.data-table th {
    background: var(--background);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    font-size: 0.95rem;
    vertical-align: middle;
}

.data-table tr:hover {
    background: var(--background);
}

.data-table .product-cell {
    display: flex;
    align-items: center;
    gap: 12px;
}

.data-table .product-cell img {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.data-table .status-badge {
    display: inline-flex;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
}

.status-badge.pending {
    background: rgba(255, 152, 0, 0.1);
    color: var(--warning);
}

.status-badge.approved {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success);
}

.status-badge.rejected {
    background: rgba(244, 67, 54, 0.1);
    color: var(--danger);
}

.status-badge.suspended {
    background: rgba(156, 39, 176, 0.1);
    color: #9C27B0;
}

.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mb-3 {
    margin-bottom: 30px;
}

.mt-3 {
    margin-top: 30px;
}

.mt-2 {
    margin-top: 20px;
}

.table-actions {
    display: flex;
    gap: 8px;
}

.table-actions .btn {
    padding: 8px 14px;
    font-size: 0.85rem;
}

/* ===== Upload Section ===== */
.upload-section {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    margin-bottom: 30px;
}

.upload-section h2 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.upload-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.image-upload {
    border: 3px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--background);
}

.image-upload:hover {
    border-color: var(--primary);
    background: rgba(255, 107, 53, 0.05);
}

.image-upload.dragover {
    border-color: var(--primary);
    background: rgba(255, 107, 53, 0.1);
}

.image-upload i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.image-upload p {
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.image-upload span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.image-preview {
    display: none;
    position: relative;
}

.image-preview img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.image-preview .remove-image {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 30px;
    height: 30px;
    background: var(--danger);
    color: var(--text-inverse);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
}

/* ===== Profile Section ===== */
.profile-section {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    margin-bottom: 30px;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--border);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    background: var(--primary);
    color: var(--text-inverse);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
}

.profile-info h2 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.profile-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.profile-info .verified {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--success);
    font-size: 0.85rem;
    margin-top: 5px;
}

/* ===== Seller Products Grid ===== */
.seller-products {
    margin-top: 30px;
}

.seller-products h2 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.seller-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

/* ===== Alerts ===== */
.alert {
    padding: 15px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success);
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.alert-error {
    background: rgba(244, 67, 54, 0.1);
    color: var(--danger);
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.alert-warning {
    background: rgba(255, 152, 0, 0.1);
    color: var(--warning);
    border: 1px solid rgba(255, 152, 0, 0.3);
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--surface);
    padding: 15px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: toastSlideIn 0.3s ease;
    min-width: 300px;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--danger);
}

.toast.warning {
    border-left: 4px solid var(--warning);
}

.toast i {
    font-size: 1.2rem;
}

.toast.success i {
    color: var(--success);
}

.toast.error i {
    color: var(--danger);
}

.toast.warning i {
    color: var(--warning);
}

/* ===== Mobile Responsive ===== */
@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
        transition: var(--transition);
        z-index: 1001;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-sidebar-toggle {
        display: block !important;
    }
}

@media (max-width: 768px) {
    .nav-search {
        display: none;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .mobile-menu.active {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat span,
    .stat i {
        font-size: 1.8rem;
    }
    
    .categories {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 10px;
        flex-wrap: nowrap;
    }
    
    .category-btn {
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    
    .modal-content {
        margin: 10px;
        max-height: 95vh;
    }
    
    .modal-product-image {
        height: 250px;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .data-table {
        display: block;
        overflow-x: auto;
    }
    
    .upload-form {
        grid-template-columns: 1fr;
    }
    
    .profile-header {
        flex-direction: column;
        text-align: center;
    }
    
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 50px 15px;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-stats {
        flex-wrap: wrap;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .trust-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .auth-container {
        border-radius: var(--radius-lg);
    }
    
    .auth-form {
        padding: 20px;
    }
    
    .main-content {
        padding: 20px 15px;
    }
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }
.hidden { display: none !important; }
.full-width { grid-column: 1 / -1; }