/* ============================================
   DESIGN SYSTEM - Palette B (Future Grid)
   ============================================ */

:root {
    /* Primary Colors */
    --electric-indigo: #5546FF;
    --deep-navy: #0D1A3A;
    
    /* Accent */
    --cyber-mint: #9CFFD9;
    
    /* Neutrals */
    --graphite-grey: #2D2D2D;
    --frost-white: #F4F8FD;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Inter", "Roboto", "Segoe UI", sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

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

body {
    font-family: var(--font-family);
    color: var(--graphite-grey);
    background-color: var(--frost-white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

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

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--deep-navy);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.7;
}

/* ============================================
   CONTAINER
   ============================================ */

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--deep-navy);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--frost-white);
    transition: color var(--transition-fast);
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.logo-text {
    display: none;
}

@media (min-width: 768px) {
    .logo-text {
        display: inline;
    }
}

.logo:hover {
    color: var(--cyber-mint);
}

.logo:hover .logo-img {
    opacity: 0.9;
}

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

.nav-link {
    color: var(--frost-white);
    font-size: 0.95rem;
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--cyber-mint);
    transition: width var(--transition-normal);
}

.nav-link:hover {
    color: var(--cyber-mint);
}

.nav-link:hover::after {
    width: 100%;
}

.language-switcher {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.lang-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--frost-white);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    background-color: rgba(156, 255, 217, 0.1);
    color: var(--cyber-mint);
}

.lang-btn.active {
    background-color: var(--electric-indigo);
    color: var(--frost-white);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    width: 28px;
    height: 28px;
    justify-content: center;
}

.menu-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--frost-white);
    transition: all var(--transition-fast);
    border-radius: 2px;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--deep-navy);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--deep-navy) 0%, #1a2d5a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
    cursor: crosshair;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(85, 70, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(85, 70, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    animation: gridMove 20s linear infinite;
    z-index: 1;
    pointer-events: none;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

.matrix-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 1;
    display: block;
}

.hero-content {
    text-align: center;
    color: var(--frost-white);
    z-index: 3;
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    pointer-events: auto;
}

.hero-title {
    color: var(--frost-white);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: rgba(244, 248, 253, 0.9);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

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

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    text-align: center;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--electric-indigo);
    color: var(--frost-white);
    box-shadow: 0 4px 15px rgba(85, 70, 255, 0.3);
}

.btn-primary:hover {
    background-color: #6b5eff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(85, 70, 255, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--frost-white);
    border: 2px solid var(--cyber-mint);
}

.btn-secondary:hover {
    background-color: var(--cyber-mint);
    color: var(--deep-navy);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* ============================================
   SECTIONS
   ============================================ */

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

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--deep-navy);
}

.section-subtitle {
    text-align: center;
    color: var(--graphite-grey);
    margin-bottom: var(--spacing-xl);
    opacity: 0.8;
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */

.products-section {
    background-color: var(--frost-white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.product-card {
    background-color: var(--frost-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-normal);
    border: 1px solid rgba(85, 70, 255, 0.1);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(85, 70, 255, 0.15);
    border-color: var(--electric-indigo);
}

.product-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    filter: grayscale(0.3);
    transition: filter var(--transition-normal);
}

.product-card:hover .product-icon {
    filter: grayscale(0);
}

.product-title {
    color: var(--deep-navy);
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.product-description {
    color: var(--graphite-grey);
    line-height: 1.7;
}

/* ============================================
   SERVICES SECTION
   ============================================ */

.services-section {
    background: linear-gradient(to bottom, var(--frost-white) 0%, rgba(244, 248, 253, 0.5) 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.service-card {
    background-color: var(--frost-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-normal);
    border: 1px solid rgba(156, 255, 217, 0.2);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--electric-indigo), var(--cyber-mint));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(85, 70, 255, 0.15);
    border-color: var(--cyber-mint);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    transition: transform var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-title {
    color: var(--deep-navy);
    margin-bottom: var(--spacing-sm);
    font-size: 1.375rem;
}

.service-description {
    color: var(--graphite-grey);
    line-height: 1.7;
}

/* ============================================
   REFERENCES SECTION
   ============================================ */

.references-section {
    background-color: var(--graphite-grey);
    color: var(--frost-white);
}

.references-section .section-title,
.references-section .section-subtitle {
    color: var(--frost-white);
}

.references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    align-items: center;
}

.reference-logo {
    background-color: rgba(244, 248, 253, 0.1);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    transition: all var(--transition-normal);
    border: 1px solid rgba(156, 255, 217, 0.2);
}

.reference-logo:hover {
    background-color: rgba(156, 255, 217, 0.1);
    border-color: var(--cyber-mint);
    transform: scale(1.05);
}

.logo-placeholder {
    color: var(--frost-white);
    font-size: 1.25rem;
    font-weight: 500;
    opacity: 0.7;
    text-align: center;
}

.reference-image {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: 0.8;
    transition: all var(--transition-normal);
}

.reference-logo:hover .reference-image {
    opacity: 1;
    filter: brightness(0) invert(1);
    transform: scale(1.05);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-section {
    background-color: var(--frost-white);
}

.contact-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.contact-form-wrapper {
    width: 100%;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.info-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.info-icon {
    flex-shrink: 0;
    margin-top: 0.25rem;
    width: 24px;
    height: 24px;
    color: var(--electric-indigo);
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-icon svg {
    width: 100%;
    height: 100%;
    transition: color var(--transition-fast);
}

.info-item:hover .info-icon {
    color: var(--cyber-mint);
}

.info-content {
    flex: 1;
}

.info-title {
    color: var(--deep-navy);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.info-text {
    color: var(--graphite-grey);
    line-height: 1.6;
    margin: 0;
}

.info-text a {
    color: var(--electric-indigo);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.info-text a:hover {
    color: var(--cyber-mint);
    text-decoration: underline;
}

.contact-form {
    background-color: var(--frost-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(85, 70, 255, 0.1);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--deep-navy);
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid rgba(45, 45, 45, 0.1);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    color: var(--graphite-grey);
    background-color: var(--frost-white);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--electric-indigo);
    box-shadow: 0 0 0 3px rgba(85, 70, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Form Message */
.form-message {
    display: none;
    padding: var(--spacing-sm) var(--spacing-md);
    margin-top: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    text-align: center;
    animation: slideIn 0.3s ease;
}

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

.form-message-success {
    background-color: rgba(85, 70, 255, 0.1);
    color: var(--electric-indigo);
    border: 1px solid var(--electric-indigo);
}

.form-message-error {
    background-color: rgba(255, 100, 100, 0.2);
    color: #ff6464;
    border: 1px solid #ff6464;
}

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

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background-color: var(--deep-navy);
    color: var(--frost-white);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer-text {
    color: rgba(244, 248, 253, 0.8);
    font-size: 0.9rem;
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */

@media (max-width: 768px) {
    .hero {
        padding-top: 100px;
        min-height: 90vh;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .products-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .references-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .contact-form {
        padding: var(--spacing-md);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .contact-info {
        order: -1;
    }
}

@media (max-width: 480px) {
    .references-grid {
        grid-template-columns: 1fr;
    }
    
    .language-switcher {
        gap: 2px;
    }
    
    .lang-btn {
        padding: var(--spacing-xs) 0.5rem;
        font-size: 0.8rem;
    }
}

/* ============================================
   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 */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--electric-indigo);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--electric-indigo);
    color: var(--frost-white);
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}