:root {
    /* Light Mode Colors */
    --bg-primary-light: #ffffff;
    --bg-secondary-light: #f7fafc;
    --text-primary-light: #1a1a2e;
    --text-secondary-light: #2d3748;
    --text-muted-light: #4a5568;
    
    /* Dark Mode Colors */
    --bg-primary-dark: #1a1a2e;
    --bg-secondary-dark: #2d3748;
    --text-primary-dark: #ffffff;
    --text-secondary-dark: #e2e8f0;
    --text-muted-dark: #cbd5e0;
    
    /* Brand Colors */
    --color-navy: #1a1a2e;
    --color-red: #c41e3a;
    --color-cyan: #00d4ff;
    --color-white: #ffffff;
    
    /* Current Theme (Default: Light) */
    --bg-primary: var(--bg-primary-light);
    --bg-secondary: var(--bg-secondary-light);
    --text-primary: var(--text-primary-light);
    --text-secondary: var(--text-secondary-light);
    --text-muted: var(--text-muted-light);
    
    /* Spacing */
    --section-padding: 80px 0;
    
    /* Transitions */
    --transition-smooth: all 0.3s ease;
}

/* Dark Mode Theme */
body.dark-mode {
    --bg-primary: var(--bg-primary-dark);
    --bg-secondary: var(--bg-secondary-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --text-muted: var(--text-muted-dark);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition-smooth);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    color: var(--text-primary);
}

a {
    text-decoration: none;
    transition: var(--transition-smooth);
}

/* Header */
.header {
    background-color: var(--bg-primary);
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-smooth);
}

.logo {
    height: 60px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.language-switcher .lang-btn {
    border-color: var(--color-cyan);
    color: var(--text-primary);
    background-color: transparent;
    transition: var(--transition-smooth);
}

.language-switcher .lang-btn.active,
.language-switcher .lang-btn:hover {
    background-color: var(--color-cyan);
    color: var(--color-white);
    border-color: var(--color-cyan);
}

.theme-toggle {
    border-color: var(--color-cyan);
    color: var(--text-primary);
    background-color: transparent;
    transition: var(--transition-smooth);
}

.theme-toggle:hover {
    background-color: var(--color-cyan);
    color: var(--color-white);
    border-color: var(--color-cyan);
}

/* Hero Section */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--color-navy) 0%, #16213e 50%, var(--color-navy) 100%);
    padding: 100px 0;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%2300d4ff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,144C960,149,1056,139,1152,122.7C1248,107,1344,85,1392,74.7L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-logo-container {
    margin-bottom: 30px;
}

.hero-logo {
    height: 120px;
    width: auto;
    filter: drop-shadow(0 4px 20px rgba(0, 212, 255, 0.3));
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--color-white);
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--color-cyan);
    margin-bottom: 40px;
    font-weight: 500;
}

.hero-cta {
    background: linear-gradient(135deg, var(--color-cyan) 0%, #0099cc 100%);
    border: none;
    padding: 15px 50px;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.4);
    transition: all 0.3s ease;
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 30px rgba(0, 212, 255, 0.6);
    background: linear-gradient(135deg, #0099cc 0%, var(--color-cyan) 100%);
}

/* Section Styles */
.features,
.benefits,
.contact {
    padding: var(--section-padding);
    background-color: var(--bg-primary);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    color: var(--text-primary);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-red));
    border-radius: 2px;
}

/* Feature Cards */
.feature-card {
    background-color: var(--bg-secondary);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    height: 100%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-cyan);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--color-cyan) 0%, #0099cc 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.feature-title {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-description {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.8;
}

/* Benefit Cards */
.benefits {
    background-color: var(--bg-secondary);
}

.benefit-card {
    background-color: var(--bg-primary);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    height: 100%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.benefit-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-red);
    box-shadow: 0 10px 30px rgba(196, 30, 58, 0.2);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--color-red) 0%, #a01628 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(196, 30, 58, 0.3);
}

.benefit-title {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    font-weight: 600;
}

.benefit-description {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.8;
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.contact-intro {
    font-size: 1.2rem;
    color: var(--text-muted);
}

.contact-form .form-control {
    background-color: var(--bg-secondary);
    border: 2px solid transparent;
    color: var(--text-primary);
    padding: 15px 20px;
    border-radius: 10px;
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.contact-form .form-control:focus {
    background-color: var(--bg-secondary);
    border-color: var(--color-cyan);
    box-shadow: 0 0 0 0.2rem rgba(0, 212, 255, 0.25);
    color: var(--text-primary);
}

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

.contact-form .btn-primary {
    background: linear-gradient(135deg, var(--color-cyan) 0%, #0099cc 100%);
    border: none;
    padding: 15px 60px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.contact-form .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(0, 212, 255, 0.4);
}

#form-message {
    text-align: center;
    font-weight: 500;
}

#form-message.success {
    color: #10b981;
}

#form-message.error {
    color: #ef4444;
}

/* Footer */
.footer {
    background-color: var(--color-navy);
    padding: 40px 0;
    color: var(--color-white);
}

.footer-logo {
    height: 50px;
    width: auto;
}

.footer-text {
    color: var(--color-white) !important;
    font-size: 1rem;
}

.footer-link {
    color: var(--color-white) !important;
    transition: var(--transition-smooth);
}

.footer-link:hover {
    color: var(--color-cyan) !important;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

.animate-slide-up {
    animation: slideUp 0.8s ease-out;
    animation-fill-mode: both;
}

.animate-slide-up:nth-child(2) {
    animation-delay: 0.2s;
}

.animate-slide-up:nth-child(3) {
    animation-delay: 0.4s;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

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

body[dir="rtl"] .navbar-brand {
    margin-right: 0;
    margin-left: auto;
}

body[dir="rtl"] .ms-auto {
    margin-left: 0 !important;
    margin-right: auto !important;
}

body[dir="rtl"] .text-lg-start {
    text-align: right !important;
}

body[dir="rtl"] .text-lg-end {
    text-align: left !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 60px 0;
        min-height: 500px;
    }
    
    .hero-logo {
        height: 80px;
    }
    
    .logo {
        height: 50px;
    }
    
    .feature-card,
    .benefit-card {
        margin-bottom: 20px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .footer-logo {
        height: 40px;
    }
}

@media (max-width: 576px) {
    .language-switcher,
    .theme-toggle {
        font-size: 0.85rem;
    }
    
    .hero-cta {
        padding: 12px 35px;
        font-size: 1rem;
    }
    
    .contact-form .btn-primary {
        padding: 12px 40px;
        font-size: 1rem;
    }
}