/* ===== CSS VARIABLES ===== */
:root {
    /* Colors */
    --primary-blue: #1e40af;
    --secondary-blue: #3b82f6;
    --accent-indigo: #6366f1;
    --light-blue: #dbeafe;
    --dark-blue: #1e3a8a;
    --success-green: #10b981;
    --warning-yellow: #f59e0b;
    --error-red: #ef4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-indigo) 100%);
    --gradient-hero: linear-gradient(135deg, #1e40af 0%, #6366f1 100%);
    --gradient-footer: linear-gradient(135deg, #111827 0%, #1e40af 100%);
    --gradient-partner: linear-gradient(135deg, #f9fafb 0%, #dbeafe 100%);
    
    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 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: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ===== RESET & BASE STYLES ===== */
* {
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #374151;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin: 0;
}

/* ===== LAYOUT COMPONENTS ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-2xl) 0;
}

/* ===== HEADER & NAVIGATION ===== */
header {
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.9);
}

.nav-link {
    color: #6b7280;
    transition: color var(--transition-fast);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-lg);
}

.nav-link:hover {
    color: var(--primary-blue);
    background-color: var(--light-blue);
}

.contact-link {
    color: #374151;
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
}

.contact-link:hover {
    color: var(--primary-blue);
}

.cta-button {
    background: linear-gradient(to right, var(--secondary-blue), var(--accent-indigo));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    display: inline-block;
}

.cta-button:hover {
    background: linear-gradient(to right, var(--primary-blue), var(--dark-blue));
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.mobile-nav-link {
    padding: 0.5rem 1rem;
    color: #6b7280;
    transition: all var(--transition-fast);
    border-radius: var(--radius-lg);
    display: block;
}

.mobile-nav-link:hover {
    color: var(--primary-blue);
    background-color: var(--light-blue);
}

.mobile-contact-link {
    display: block;
    padding: 0.75rem 1rem;
    color: #374151;
    transition: color var(--transition-fast);
    border-radius: var(--radius-lg);
}

.mobile-contact-link:hover {
    color: var(--primary-blue);
}

.mobile-cta-button {
    display: block;
    margin-top: 0.5rem;
    background: linear-gradient(to right, var(--secondary-blue), var(--accent-indigo));
    color: white;
    text-align: center;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    text-decoration: none;
}

.mobile-cta-button:hover {
    background: linear-gradient(to right, var(--primary-blue), var(--dark-blue));
}

/* ===== HERO SECTION ===== */
.hero-section {
    position: relative;
    background: var(--gradient-hero);
    color: white;
    padding: 5rem 0;
}

@media (min-width: 768px) {
    .hero-section {
        padding: 8rem 0;
    }
}

.hero-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.75rem;
    }
}

.hero-subtitle {
    font-size: 1.125rem;
    color: #93c5fd;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.25rem;
    }
}

.hero-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

@media (max-width: 640px) {
    .hero-actions {
        flex-direction: column;
        gap: 1rem;
    }
}

.hero-cta-primary {
    background: white;
    color: var(--secondary-blue);
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    transition: background-color var(--transition-fast);
    text-decoration: none;
}

.hero-cta-primary:hover {
    background-color: #f3f4f6;
}

.hero-contact {
    text-align: left;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 5rem;
    background: #f9fafb;
    clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

/* ===== ABOUT SECTION ===== */
.section-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1rem;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.about-text {
    color: #6b7280;
}

/* ===== PRODUCTS SECTION ===== */
.products-header {
    text-align: center;
    margin-bottom: 3rem;
}

.products-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: #111827;
}

@media (min-width: 768px) {
    .products-title {
        font-size: 3rem;
    }
}

.products-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    margin-top: 0.5rem;
}

.search-container {
    margin-bottom: 2rem;
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 9999px;
    outline: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.search-input:focus {
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.15);
    border-color: var(--secondary-blue);
}

.category-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1280px) {
    .category-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.category-card {
    cursor: pointer;
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

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

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--light-blue) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
}

.category-card:hover::before {
    opacity: 0.2;
}

.category-title {
    font-weight: 700;
    font-size: 1.25rem;
    color: #111827;
}

/* ===== PRODUCT CONTENT ===== */
.view-hidden {
    opacity: 0;
    transform: scale(0.95);
    pointer-events: none;
    position: absolute;
    display: none;
}

.view-visible {
    opacity: 1;
    transform: scale(1);
    position: static;
}

.hidden {
    display: none;
}

.back-button {
    margin-bottom: 2rem;
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 9999px;
    border: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    cursor: pointer;
}

.back-button:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* ===== PRODUCT CARDS ===== */
.product-card {
    background: #f9fafb;
    border-radius: var(--radius-lg);
    padding: 1rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: 1px solid #e5e7eb;
}

.product-card:hover {
    background: var(--light-blue);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

/* ===== TABLES ===== */
table tr:hover {
    background-color: var(--light-blue);
    transition: background-color var(--transition-fast);
}

/* ===== PARTNER SECTION ===== */
.partner-section {
    background: var(--gradient-partner);
}

.partner-header {
    text-align: center;
    margin-bottom: 3rem;
}

.partner-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1rem;
}

.partner-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    max-width: 42rem;
    margin: 0 auto;
}

.partner-card {
    background: white;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: 2rem;
    transition: all var(--transition-normal);
}

@media (min-width: 768px) {
    .partner-card {
        padding: 3rem;
    }
}

.partner-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.partner-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

@media (min-width: 768px) {
    .partner-content {
        flex-direction: row;
    }
}

.partner-logo {
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

@media (min-width: 768px) {
    .partner-logo {
        width: 33.333333%;
        margin-bottom: 0;
    }
}

.logo-container {
    background: linear-gradient(135deg, var(--light-blue) 0%, #e0e7ff 100%);
    border-radius: var(--radius-xl);
    width: 12rem;
    height: 12rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

@media (min-width: 768px) {
    .partner-info {
        width: 66.666667%;
        padding-left: 3rem;
        text-align: left;
    }
}

.partner-badge {
    display: inline-block;
    background: var(--light-blue);
    color: var(--primary-blue);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    margin-bottom: 1rem;
}

.partner-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1rem;
}

.partner-description {
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.partner-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.feature-item {
    display: flex;
    align-items: center;
    color: #6b7280;
}

.partner-link {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(to right, var(--secondary-blue), var(--accent-indigo));
    color: white;
    font-weight: 500;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.partner-link:hover {
    background: linear-gradient(to right, var(--primary-blue), var(--dark-blue));
}

/* ===== FOOTER ===== */
.footer {
    background: var(--gradient-footer);
    color: white;
}

.footer-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.logo-badge {
    background: white;
    color: var(--primary-blue);
    border-radius: var(--radius-lg);
    padding: 0.25rem 0.5rem;
    margin-right: 0.5rem;
    font-weight: 700;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-description {
    color: #d1d5db;
    margin-bottom: 1rem;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #1e40af;
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
}

.contact-value {
    font-weight: 500;
}

.contact-label {
    color: #d1d5db;
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-link {
    display: block;
    color: #d1d5db;
    transition: color var(--transition-fast);
    padding: 0.25rem 0;
    text-decoration: none;
}

.footer-link:hover {
    color: white;
}

.footer-bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #1e40af;
    text-align: center;
}

.footer-copyright {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

@media (min-width: 768px) {
    .footer-copyright {
        flex-direction: row;
    }
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

.footer-legal-link {
    color: #9ca3af;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
    text-decoration: none;
}

.footer-legal-link:hover {
    color: white;
}

/* ===== ANIMATIONS ===== */
.fade-in-element {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-element.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-blue);
    border-radius: var(--radius-sm);
}

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

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .category-card {
        margin-bottom: var(--spacing-md);
    }
    
    .fade-in-element {
        transform: translateY(20px);
    }
    
    .fade-in-element.is-visible {
        transform: translateY(0);
    }
    
    .product-card {
        margin-bottom: var(--spacing-sm);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 1rem;
    }
    
    .partner-content {
        text-align: center;
    }
    
    .partner-info {
        padding-left: 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: 1.875rem;
    }
    
    .products-title {
        font-size: 1.875rem;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-glow {
    box-shadow: 0 0 20px rgba(30, 64, 175, 0.3);
}

.transition-all {
    transition: all var(--transition-normal);
}

/* ===== LOADING STATES ===== */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(30, 64, 175, 0.1);
    border-top: 4px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for keyboard navigation */
button:focus,
a:focus,
input:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .category-card {
        border: 2px solid var(--primary-blue);
    }
    
    .product-card {
        border: 1px solid #000;
    }
}
        border: 1px solid #000;
    }
}