:root {
    --primary-color: #0d253f;
    /* Deep Blue */
    --accent-color: #1e81b0;
    /* Teal/Blue */
    --accent-hover: #156082;
    --text-color: #333333;
    --light-text: #f4f4f4;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --transition-speed: 0.3s;
    --font-main: 'Inter', sans-serif;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

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

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

ul {
    list-style: none;
}

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

/* Header & Nav */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
    transition: var(--transition-speed);
}

.header.scrolled {
    padding: 10px 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-icon {
    color: var(--accent-color);
    font-size: 1.8rem;
}

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-list a {
    font-weight: 500;
    color: var(--text-color);
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent-color);
    transition: var(--transition-speed);
}

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

.nav-list a:hover {
    color: var(--accent-color);
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--light-text);
    display: flex;
    align-items: center;
    text-align: center;
    position: relative;
    padding-top: 80px;
    /* Header offset */
}

/* Add a subtle pattern overlay to make the gradient richer */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

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

.hero p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition-speed);
}

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

.btn-primary:hover {
    background-color: transparent;
    border-color: var(--bg-white);
    color: var(--bg-white);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.full-width {
    width: 100%;
}

/* Sections General */
.section {
    padding: 100px 0;
}

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

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

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.text-white .section-header h2 {
    color: var(--bg-white);
}

.text-white .section-header p {
    color: rgba(255, 255, 255, 0.8);
}

/* About Section */
.about {
    background-color: var(--bg-white);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.about-card {
    background: var(--bg-light);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition-speed);
    border: 1px solid #eee;
}

.about-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
    border-color: var(--accent-color);
}

.icon-box {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

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

.about-card p {
    color: #666;
}

/* Services Section */
.services {
    background-color: var(--primary-color);
    color: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: rgba(255, 255, 255, 0.05);
    /* Glassmorphism subtle */
    backdrop-filter: blur(5px);
    padding: 40px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-speed);
}

.service-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.02);
}

.service-card i {
    font-size: 3rem;
    color: var(--accent-color);
    /* Note: might need better contrast on dark, let's check */
    color: #4db6e6;
    /* Brighter teal for dark bg */
    margin-bottom: 25px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.service-card p {
    color: rgba(255, 255, 255, 0.7);
}

/* Contact Section */
.contact {
    background-color: var(--bg-white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background: var(--bg-light);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.contact-info {
    font-family: var(--font-main);
    padding: 50px;
    background-color: var(--primary-color);
    color: var(--bg-white);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 40px;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    font-weight: 600;
}

.contact-item p,
.contact-item a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
}

.contact-item a:hover {
    color: #fff;
    text-decoration: underline;
}

.contact-form {
    padding: 50px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-speed);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-color);
    outline: none;
}

.contact-form button {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    cursor: pointer;
}

.contact-form button:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(30, 129, 176, 0.3);
}

/* Footer */
.footer {
    background-color: #081829;
    /* Darker than primary */
    color: #fff;
    padding: 50px 0 20px;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.4);
}

/* Media Queries */
@media (max-width: 900px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #fff;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        text-align: center;
    }

    .nav.active {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        gap: 15px;
    }

    .mobile-menu-toggle {
        display: block;
    }
}