/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-color: #1e3a8a;
    --secondary-color: #f97316;
    --accent-color: #f3f4f6;
    --text-primary: #374151;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --white: #ffffff;
    --black: #000000;
    --gradient-primary: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    --gradient-secondary: linear-gradient(135deg, #f97316 0%, #fb923c 100%);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* 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);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* RTL Support */
[dir="rtl"] {
    text-align: right;
}

[dir="rtl"] .nav-list {
    flex-direction: row-reverse;
}

[dir="rtl"] .hero-container {
    flex-direction: row-reverse;
}

[dir="rtl"] .contact-content {
    flex-direction: row-reverse;
}

[dir="rtl"] .footer-content {
    flex-direction: row-reverse;
}

/* Base Typography */
body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

a:hover {
    color: var(--secondary-color);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    min-height: 48px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav {
    padding: var(--spacing-md) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo .logo {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    margin: 0;
}

.nav-link {
    font-weight: 500;
    color: var(--text-primary);
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width var(--transition-normal);
}

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

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

.language-switcher {
    display: flex;
    background: var(--accent-color);
    border-radius: 6px;
    padding: 2px;
}

.lang-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn.active {
    background: var(--white);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    margin: 2px 0;
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--spacing-3xl);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.highlight {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-visual {
    animation: fadeInRight 1s ease-out 0.3s both;
}

.hero-image {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

/* Sections */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.service-card {
    background: var(--white);
    border-radius: 16px;
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

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

.service-icon {
    margin-bottom: var(--spacing-lg);
    border-radius: 12px;
    overflow: hidden;
    height: 200px;
}

.service-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.service-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Clients Section */
.clients {
    padding: var(--spacing-3xl) 0;
    background: var(--accent-color);
}

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

.client-card {
    background: var(--white);
    border-radius: 12px;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    text-align: center;
}

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

.client-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.client-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.client-type {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Contact Section */
.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

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

.contact-item h3 {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

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

.contact-item a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.contact-item a:hover {
    color: var(--secondary-color);
}

/* Contact Form */
.contact-form {
    background: var(--accent-color);
    padding: var(--spacing-2xl);
    border-radius: 16px;
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: border-color var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

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

/* Footer */
.footer {
    background: var(--text-primary);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.footer-description {
    color: #d1d5db;
    line-height: 1.6;
}

.footer-section h4 {
    color: var(--white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a {
    color: #d1d5db;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid #4b5563;
    padding-top: var(--spacing-lg);
    text-align: center;
    color: #9ca3af;
}

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

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

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 var(--spacing-2xl);
        min-height: auto;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .clients-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-description {
        font-size: var(--font-size-base);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .service-card,
    .contact-form {
        padding: var(--spacing-lg);
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus Styles for Accessibility */
button:focus,
a:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .header,
    .nav-toggle,
    .hero-buttons,
    .contact-form {
        display: none;
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
        min-height: auto;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
}