/* --- Variables & Reset --- */
:root {
    --primary-color: #0a192f; /* Deep Navy Blue */
    --secondary-color: #112240; /* Lighter Navy for cards */
    --accent-color: #64ffda; /* Clinical Teal/Cyan */
    --text-light: #e6f1ff;
    --text-dim: #8892b0;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    background-color: var(--primary-color);
    color: var(--text-dim);
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-light);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* --- Navigation --- */
.navbar {
    background-color: rgba(10, 25, 47, 0.95);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(100, 255, 218, 0.1);
}

.nav-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
}

.logo i {
    color: var(--accent-color);
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.btn-nav {
    border: 1px solid var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    color: var(--accent-color);
}

.btn-nav:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
}

/* --- Hero Section --- */
.hero {
    height: 80vh;
    background-image: url('https://images.unsplash.com/photo-1546026423-cc4642628d2b?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(10, 25, 47, 0.95), rgba(10, 25, 47, 0.4));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.sub-headline {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-dim);
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-right: 1rem;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #4cd6b3;
}

.btn-outline {
    border: 1px solid var(--text-light);
    color: var(--text-light);
}

.btn-outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* --- Trust Bar --- */
.trust-bar {
    background-color: var(--accent-color);
    padding: 2rem 0;
    color: var(--primary-color);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: center;
}

.trust-item i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.trust-item h3 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}

.trust-item p {
    font-size: 0.9rem;
    font-weight: 600;
}

/* --- Services Grid --- */
.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--accent-color);
    margin: 10px auto 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--secondary-color);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
}

.card:hover {
    transform: translateY(-10px);
}

.card-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.card-content {
    padding: 2rem;
}

.card h3 {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.card-list {
    list-style: none;
    margin-top: 1rem;
}

.card-list li {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.card-list i {
    color: var(--accent-color);
    margin-right: 10px;
}

/* --- About Split Layout --- */
.bg-dark {
    background-color: var(--secondary-color);
}

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.text-left {
    text-align: left;
}

.text-left::after {
    margin: 10px 0 0 0;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 20px 20px 0px var(--accent-color);
}

.signature {
    margin-top: 1.5rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    color: var(--accent-color);
}

/* --- Contact Form --- */
.contact-box {
    background-color: var(--secondary-color);
    padding: 3rem;
    border-radius: 8px;
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.contact-form {
    margin-top: 2rem;
    text-align: left;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

input, select {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    border: 1px solid #233554;
    color: var(--text-light);
    border-radius: 4px;
    font-family: inherit;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.full-width {
    width: 100%;
    border: none;
    font-size: 1rem;
    margin-top: 1rem;
}

/* --- Footer --- */
footer {
    padding: 2rem 0;
    text-align: center;
    background-color: #020c1b;
    font-size: 0.9rem;
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
    .nav-links, .hamburger {
        display: none; /* Simplified for demo, usually involves JS */
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .split-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}