/* CSS Variables for Easy Customization */
:root {
    /* Color Scheme */
    --primary-color: #1E90FF;
    --secondary-color: #53c2df;
    --accent-color: #15616d;
    --dark-bg: #1a1a1a;
    --darker-bg: #0f0f0f;
    --light-bg: #f8f9fa;
    --text-primary: #333;
    --text-secondary: #666;
    --text-light: #ccc;
    --white: #fff;
    --black: #000;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-size-xs: 0.9rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.1rem;
    --font-size-lg: 1.2rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 5px;
    --radius-md: 10px;
    --radius-lg: 15px;
    --radius-xl: 50px;
    
    /* Shadows */
    --shadow-sm: 0 5px 15px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-normal: 0.5s ease;
    --transition-slow: 0.8s ease;
}

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
}

/* Overlay background utility */
.section-with-overlay {
    position: relative;
    background-image: var(--section-bg-url);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.section-with-overlay::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.6));
}

.section-with-overlay > .container {
    position: relative;
    z-index: 1;
}

/* Glass card utility for dark backgrounds */
.glass-card {
    background: rgba(253, 253, 253, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    padding: var(--spacing-lg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: #fbfbfb;
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition-fast);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    color: var(--secondary-color);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.nav-logo img {
    width: 100px;
    margin-right: 10px;
}

.nav-logo i {
    color: var(--secondary-color);
    margin-right: var(--spacing-sm);
    font-size: var(--font-size-3xl);
}

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

.nav-link {
    color: rgb(34,34,34);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-fast);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--darker-bg);
    margin: 3px 0;
    transition: var(--transition-fast);
}

/* Hero Slider */
.hero-slider {
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.slider-container {
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity var(--transition-slow);
    display: flex;
    align-items: center;
    background: linear-gradient(145deg, #000000 0%, #1e90ff 90%);
}

.slide.active {
    opacity: 1;
}

.slide-content {
    flex: 1;
    padding: 0 5%;
    color: var(--white);
    z-index: 2;
}

.slide-content h1 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    animation: slideInLeft 1s ease;
}

.slide-content p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
    animation: slideInLeft 1s ease 0.2s both;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 15px 30px;
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    transition: all var(--transition-fast);
    animation: slideInLeft 1s ease 0.4s both;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255, 125, 0, 0.3);
}

.slide-image {
    flex: 1;
    height: 100%;
    position: relative;
}

.slide-image img {
    width: 100%;
    height: 100%;
    object-fit: none;
    opacity: 0.7;
}

.slider-controls {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 2rem;
    z-index: 10;
}

.prev-btn, .next-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: #fff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.prev-btn:hover, .next-btn:hover {
    background: var(--primary-color)
}

.slider-dots {
    display: flex;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-bg);
}

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

/* About Section */
.about-section {
    padding: 100px 0;
    background: var(--light-bg);
    position: relative;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-text h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--dark-bg);
}

.about-text p {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

/* About section text colors for light background */
.about-text h3 {
    color: var(--dark-bg);
}

.about-text p {
    color: var(--text-secondary);
}

/* Chips */
.about-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 10px 0 var(--spacing-md);
}

.about-chip {
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--primary-color);
    color: var(--white);
    border: 1px solid var(--primary-color);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* Future list */
.future-list {
    list-style: none;
    margin: 0 0 var(--spacing-lg);
    padding: 0;
}

.future-list li {
    position: relative;
    padding-left: 28px;
    margin: 8px 0;
    color: var(--text-secondary);
}

.future-list li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--secondary-color);
    font-weight: 700;
}

.stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    font-weight: 500;
}

.features {
    display: grid;
    gap: var(--spacing-md);
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.feature i {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    margin-top: 0.2rem;
}

.feature h4 {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-xs);
    color: var(--dark-bg);
}

.feature p {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

/* Services Section */
.services-section {
    padding: 100px 0;
    background: var(--white);
}

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

.service-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
    border: 1px solid #f0f0f0;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.service-icon i {
    font-size: var(--font-size-3xl);
    color: var(--white);
}

.service-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--dark-bg);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.service-card ul {
    list-style: none;
}

.service-card li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-md);
}

.service-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Partners Section */
.partners-section {
    padding: 100px 0;
    background: var(--light-bg);
}

.partners-slider {
    overflow: hidden;
    position: relative;
}

.partners-track {
    display: flex;
    animation: scroll 30s linear infinite;
    gap: var(--spacing-xl);
}

.partner-logo {
    flex-shrink: 0;
    width: 200px;
    height: 100px;
    background: var(--white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.partner-logo:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.partner-logo img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background: var(--white);
}

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

.contact-info {
    display: grid;
    gap: var(--spacing-lg);
}

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

.contact-item i {
    color: var(--secondary-color);
    font-size: var(--font-size-xl);
    margin-top: 0.2rem;
}

.contact-item h4 {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-xs);
    color: var(--dark-bg);
}

.contact-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-form {
    background: var(--light-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 125, 0, 0.1);
}

.submit-btn {
    width: 100%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 15px;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 125, 0, 0.3);
}

.map-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* Footer */
.footer {
    background: var(--light-bg);
    color: var(--black);
    padding: 50px 0 20px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-logo i {
    color: var(--secondary-color);
    margin-right: var(--spacing-sm);
    font-size: var(--font-size-3xl);
}

.footer-section p {
    color: var(--black);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    color: var(--white);
    font-size: var(--font-size-lg);
    transition: color var(--transition-fast);
}

.social-links a:hover {
    color: var(--primary-color);
}

.footer-section h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--white);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: var(--black);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--primary-color);
    color: var(--black);
}

/* Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(0, 0, 0, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
    }

    .nav-link {
        color: #fff;
    }
    .nav-menu.active {
        left: 0;
    }

    .slide-image img {
        object-fit: scale-down;
    }
    .slide-content h1 {
        font-size: 2.5rem;
    }

    .slide-content p {
        font-size: 1rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-section,
    .services-section {
        padding: 60px 0;
    }

    .about-image img {
        height: 250px;
    }

    .stats {
        flex-direction: column;
        gap: 1rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .slider-controls {
        bottom: 30px;
        gap: 1rem;
    }

    .prev-btn, .next-btn {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .slide-content h1 {
        font-size: 2rem;
    }

    .slide-content {
        padding: 0 3%;
    }

    .container {
        padding: 0 15px;
    }

    .service-card {
        padding: 1.5rem;
    }

    .contact-form {
        padding: 1.5rem;
    }

    .about-section,
    .services-section {
        padding: 40px 0;
    }
}