:root {
    --primary-color: #0056b3;
    /* Deep Blue */
    --primary-dark: #003d80;
    --secondary-color: #00a8cc;
    /* Cyan/Teal */
    --accent-color: #f39c12;
    /* Amber */
    --text-color: #333;
    --text-light: #666;
    --bg-color: #f8f9fa;
    --white: #ffffff;
    --dark-bg: #111827;
    --card-bg: #ffffff;
    --font-main: 'Outfit', sans-serif;
    --transition: all 0.3s ease;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --gradient-main: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

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

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

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

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient-main);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 86, 179, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 86, 179, 0.4);
}

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

.btn-outline:hover {
    background: var(--white);
    color: var(--primary-color);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 700;
}

.section-title p {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
}

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

/* Header */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo .highlight {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-color);
    font-size: 1rem;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.btn-nav {
    background: var(--primary-color);
    color: var(--white) !important;
    padding: 10px 25px;
    border-radius: 50px;
}

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

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    min-width: 200px;
    border-radius: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    padding: 10px 0;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    font-size: 0.95rem;
}

.dropdown-menu li a:hover {
    background: #f0f4f8;
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 10, 30, 0.8), rgba(0, 10, 30, 0.8)), url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?q=80&w=2072&auto=format&fit=crop');
    /* Fallback image */
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white);
    margin-top: 0;
    /* Header is fixed */
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Services Section */
.services-section {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.03);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--secondary-color);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-main);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

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

.icon-box {
    width: 70px;
    height: 70px;
    background: rgba(0, 86, 179, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    color: var(--primary-color);
    font-size: 1.8rem;
    transition: var(--transition);
}

.service-card:hover .icon-box {
    background: var(--primary-color);
    color: var(--white);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 25px;
    font-size: 0.95rem;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.read-more:hover {
    gap: 12px;
    color: var(--secondary-color);
}

/* Features Section */
.features-section {
    padding: 100px 0;
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.feature-content h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-list li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    font-size: 1.05rem;
}

.feature-list i {
    color: var(--secondary-color);
    margin-top: 5px;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #e0eafc, #cfdef3);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
}

.image-placeholder::after {
    content: 'Tech Visualization';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #8898aa;
    font-weight: 600;
}

/* Footer */
.footer {
    background-color: var(--dark-bg);
    color: #b0b0b0;
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo {
    color: var(--white);
    margin-bottom: 20px;
}

.footer h4 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 25px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-contact li {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.footer-contact i {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        height: 70px;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 30px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: var(--transition);
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .menu-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

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