/* --- Variables & Reset --- */
:root {
    --primary-blue: #0B3D91;
    --primary-blue-dark: #082d6b;
    --light-gray: #f4f5f7;
    --text-dark: #333333;
    --text-light: #666666;
    --white: #ffffff;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
}

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

ul {
    list-style: none;
}

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

.bg-light {
    background-color: var(--light-gray);
}

.divider {
    width: 60px;
    height: 3px;
    background-color: var(--primary-blue);
    margin: 15px auto 30px;
}

/* --- Header & Navigation --- */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s ease;
}

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

.logo a {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-blue);
    letter-spacing: 0.5px;
}

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

.nav-links a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-dark);
    transition: color 0.3s ease;
}

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

/* Mobile Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-blue);
    transition: 0.3s;
}

/* --- Hero Section --- */
.hero {
    background-color: var(--primary-blue);
    color: var(--white);
    text-align: center;
    padding: 120px 0;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.15rem;
    font-weight: 300;
    max-width: 800px;
    margin: 0 auto 40px;
    color: #e0e6ed;
}

.btn {
    display: inline-block;
    background-color: var(--white);
    color: var(--primary-blue);
    padding: 12px 30px;
    font-weight: 600;
    border-radius: 4px;
    transition: background-color 0.3s ease, color 0.3s ease;
    border: none;
    font-family: inherit;
    font-size: 1rem;
}

.btn:hover {
    background-color: #e6e6e6;
}

/* --- Sections Common --- */
section {
    padding: 80px 0;
    text-align: center;
}

section h2 {
    font-size: 2.2rem;
    color: var(--primary-blue);
}

/* --- About Section --- */
.about-text {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-light);
}

/* --- Services Section --- */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border: 1px solid #e1e1e1;
    border-top: 4px solid var(--primary-blue);
    border-radius: 4px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.service-card h3 {
    font-size: 1.2rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

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

/* --- Contact Section --- */
.contact-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 50px;
    margin-top: 50px;
    text-align: left;
}

.contact-info-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item h4 {
    color: var(--primary-blue);
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.contact-item p, .contact-item a {
    color: var(--text-light);
    font-size: 1rem;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--primary-blue);
}

/* Form Styles */
.contact-form-col {
    flex: 1.5;
    background: var(--white);
    padding: 30px;
    border-radius: 6px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

#contactForm {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#contactForm input, 
#contactForm textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    transition: border-color 0.3s ease;
}

#contactForm input:focus, 
#contactForm textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.btn-submit {
    background-color: var(--primary-blue);
    color: var(--white);
    align-self: flex-start;
    cursor: pointer;
}

.btn-submit:hover {
    background-color: var(--primary-blue-dark);
}

/* --- Footer --- */
footer {
    background-color: var(--primary-blue-dark);
    color: var(--white);
    text-align: center;
    padding: 25px 0;
    font-size: 0.9rem;
}

/* --- Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive Media Queries --- */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        padding: 20px 0;
        text-align: center;
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }

    .contact-wrapper {
        flex-direction: column;
        gap: 40px;
    }

    .contact-form-col {
        width: 100%;
        padding: 20px;
    }
}