:root {
    /* Premium Kurumsal Renk Paleti */
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    
    /* Arka Plan Renkleri */
    --dark-bg: #0f172a;
    --darker-bg: #020617;
    --card-bg: rgba(30, 41, 59, 0.9);
    --card-hover-bg: rgba(51, 65, 85, 0.9);
    
    /* Metin Renkleri */
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Border ve Divider */
    --border-color: rgba(148, 163, 184, 0.12);
    --border-color-hover: rgba(59, 130, 246, 0.3);
    
    /* Gradient'ler */
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --gradient-secondary: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(15, 23, 42, 0) 0%, rgba(15, 23, 42, 0.8) 100%);
    
    /* Gölgeler */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.15), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.25), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-focus: 0 0 0 3px rgba(59, 130, 246, 0.5);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
}

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

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    letter-spacing: -0.01em;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: clamp(1.125rem, 2vw, 1.25rem); }
h6 { font-size: clamp(1rem, 1.5vw, 1.125rem); }

p {
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
    line-height: 1.7;
}

small {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Professional Background */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(180deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    overflow: hidden;
}

.animated-bg::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(37, 99, 235, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
    opacity: 0.6;
}

/* Professional Glass Effect */
.glass {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(148, 163, 184, 0.1);
    box-shadow: var(--shadow-md);
}

/* Navigation */
/* Enhanced Navigation */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    transition: all var(--transition-base);
    letter-spacing: -0.02em;
}

.logo i {
    color: var(--primary-color);
    font-size: 1.75rem;
}

.logo:hover {
    color: var(--primary-light);
}

.logo:hover i {
    transform: scale(1.1);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    position: relative;
    padding: 0.625rem 1rem;
    border-radius: var(--radius-sm);
}

.nav-menu a:hover {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
}

.nav-menu a.active {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.15);
}

.nav-icons {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.icon-btn {
    position: relative;
    background: rgba(51, 65, 85, 0.6);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.icon-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.badge {
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--danger-color);
    color: white;
    border-radius: var(--radius-full);
    min-width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.625rem;
    font-weight: 700;
    padding: 0 4px;
    box-shadow: 0 0 0 2px var(--dark-bg);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    width: 45px;
    height: 45px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: var(--gradient-medical);
    color: white;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.15) 0%, transparent 70%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(0,212,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    animation: heroGrid 20s linear infinite;
    z-index: 0;
}

@keyframes heroGrid {
    0% { transform: translateY(0); }
    100% { transform: translateY(10%); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    animation: fadeInUp 1s ease;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.hero-title span {
    background: var(--gradient-medical);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.2s both;
}

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

/* Professional Buttons with Enhanced Design */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1.5;
    text-align: center;
    letter-spacing: 0.01em;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    user-select: none;
}

.btn:focus {
    outline: none;
    box-shadow: var(--shadow-focus);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Primary Button - Solid with Gradient */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

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

/* Outline Button - Border with Hover Fill */
.btn-outline {
    background: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

/* Secondary Button */
.btn-secondary {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--secondary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Danger Button */
.btn-danger {
    background: var(--danger-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Success Button */
.btn-success {
    background: var(--success-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-success:hover:not(:disabled) {
    background: #059669;
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Button Sizes */
.btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-xl {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

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

.btn-success {
    background: var(--success-color);
    color: var(--dark-bg);
}

/* Premium Card Design */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

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

/* Product Card Enhanced */
.product-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-slow);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
}

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

.product-card:hover::before {
    opacity: 0.05;
}

.product-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 255, 204, 0.1));
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 700;
    background: var(--gradient-primary);
    color: white;
    z-index: 2;
    box-shadow: var(--shadow-md);
    letter-spacing: 0.025em;
}

.favorite-btn {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    z-index: 2;
}

.favorite-btn:hover {
    background: var(--danger-color);
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
    border-color: var(--danger-color);
}

.favorite-btn.active {
    background: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

.product-info {
    padding: 1.5rem;
}

.product-category {
    color: var(--primary-color);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.05em;
}

.product-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.product-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.price {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.02em;
}

.old-price {
    font-size: 1.125rem;
    color: var(--text-muted);
    text-decoration: line-through;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

/* Section */
.section {
    padding: 5rem 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.section-title::after {
    content: '';
    display: block;
    width: 64px;
    height: 4px;
    background: var(--gradient-primary);
    margin: var(--spacing-lg) auto 0;
    border-radius: var(--radius-full);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* Enhanced Form Elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9375rem;
    letter-spacing: -0.01em;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1.125rem;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-base);
    line-height: 1.5;
}

.form-control:hover {
    border-color: var(--border-color-hover);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(15, 23, 42, 0.7);
    box-shadow: var(--shadow-focus);
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.form-control:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
    padding: 1rem 1.125rem;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%233b82f6' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

/* Input Groups */
.input-group {
    display: flex;
    gap: var(--spacing-sm);
}

.input-group .form-control {
    flex: 1;
}

/* Form Validation States */
.form-control.is-valid {
    border-color: var(--success-color);
}

.form-control.is-invalid {
    border-color: var(--danger-color);
}

.invalid-feedback {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--danger-color);
}

.valid-feedback {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--success-color);
}

/* Enhanced Footer */
.footer {
    background: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.125rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-section h3 i {
    color: var(--primary-color);
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    display: block;
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-base);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-section a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
}

.footer-section a:hover {
    color: var(--primary-color);
    padding-left: var(--spacing-sm);
}

.footer-section a i.fa-angle-right {
    font-size: 0.75rem;
}

/* Social Icons */
.social-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    text-decoration: none;
}

.social-icon:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Contact Items */
.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    align-items: flex-start;
}

.contact-item i {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.contact-item p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Footer Bottom */
.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    color: var(--text-secondary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.payment-methods {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.payment-methods i {
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.payment-methods i:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Animations */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

.float {
    animation: float 3s ease-in-out infinite;
}

/* Responsive - Mobile First */
@media (max-width: 992px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.5);
        padding: 2rem 0;
        gap: 0.5rem;
        z-index: 999;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-menu li a {
        display: block;
        padding: 1rem 2rem;
        width: 100%;
    }

    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Nav Icons - better spacing on tablet/mobile */
    .nav-icons {
        gap: 0.5rem;
    }
    
    .icon-btn {
        width: 38px;
        height: 38px;
        font-size: 0.95rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    /* Header - compact on mobile */
    .navbar {
        padding: 0.75rem 0;
    }
    
    .nav-brand {
        font-size: 1.25rem;
    }
    
    /* Hide some icons on very small screens, show in menu */
    .nav-icons {
        gap: 0.375rem;
        flex-wrap: wrap;
    }
    
    .icon-btn {
        width: 36px;
        height: 36px;
        font-size: 0.875rem;
    }
    
    .badge {
        min-width: 16px;
        height: 16px;
        font-size: 0.6rem;
        top: -4px;
        right: -4px;
    }

    /* Typography adjustments */
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }
    
    .section {
        padding: 3rem 0;
    }

    /* Grid - single column */
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* Better button sizing */
    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9375rem;
        width: 100%;
        justify-content: center;
    }
    
    .btn-sm {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }
    
    /* Form elements - larger touch targets */
    .form-control,
    .search-input,
    .filter-select {
        padding: 1rem;
        font-size: 1rem;
    }
    
    /* Product cards optimization */
    .product-card {
        margin-bottom: 1rem;
    }
    
    .product-image {
        height: 220px;
    }
    
    .product-info {
        padding: 1.25rem;
    }
    
    .product-title {
        font-size: 1.125rem;
    }
    
    .price {
        font-size: 1.5rem;
    }
    
    /* Stats grid */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1.5rem;
    }
    
    /* Features grid */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* Categories */
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .social-icons {
        justify-content: center;
    }
    
    /* Filters section */
    .filters-section {
        padding: 1.25rem;
    }
    
    .filter-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-btn {
        width: 100%;
        border-radius: 0 0 var(--radius-md) var(--radius-md);
    }
}

@media (max-width: 480px) {
    /* Extra small screens */
    .container {
        padding: 0 0.875rem;
    }
    
    .hero {
        min-height: 60vh;
        padding: 2rem 1rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    /* Single column for everything */
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    /* Compact product cards */
    .product-image {
        height: 200px;
    }
    
    .product-info {
        padding: 1rem;
    }
    
    /* Stack footer icons */
    .payment-methods {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Loading Animation */
.loader {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(0, 212, 255, 0.2);
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Alert Messages */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

.alert-danger {
    background: rgba(255, 51, 102, 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.alert-warning {
    background: rgba(255, 170, 0, 0.1);
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.alert-info {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
}