/* Variables */
:root {
    --primary-color: #004a99;
    --primary-hover: #003a7a;
    --secondary-color: #6c757d;
    --accent-color: #007bff;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --black: #212529;
    --gray-text: #555555;
    --border-color: #dee2e6;
    --transition: all 0.3s ease;
    --container-width: 1200px;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--black);
    overflow-x: hidden;
}

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

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

/* Header & Navbar */
.navbar {
    background-color: var(--white);
    padding: 5px 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: var(--shadow);
}

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

.logo a {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

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

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

.nav-links a {
    font-weight: 600;
    color: var(--secondary-color);
}

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

.menu-toggle {
    display: none;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 74, 153, 0.8), rgba(0, 0, 0, 0.7)), 
                url('https://images.unsplash.com/photo-1473341304170-971dccb5ac1e?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    color: var(--white);
    text-align: center;
    padding-top: 80px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-out;
}

.hero-content p {
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto 40px;
    opacity: 0.9;
    animation: fadeInUp 1.2s ease-out;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
    animation: fadeInUp 1.4s ease-out;
}

/* Buttons */
.btn {
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    display: inline-block;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

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

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

.btn-block {
    width: 100%;
    margin-top: 10px;
}

/* Section Common */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

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

.underline {
    width: 70px;
    height: 4px;
    background-color: var(--accent-color);
    margin: 15px auto;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    font-size: 1.75rem;
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 15px;
    color: var(--gray-text);
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-weight: 500;
}

.about-list i {
    color: var(--primary-color);
}

.rounded-img {
    width: 100%;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

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

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition);
    text-align: left;
    border-bottom: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    border-bottom: 4px solid var(--primary-color);
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: var(--bg-light);
    color: var(--primary-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.25rem;
}

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

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 25px;
}

.info-item i {
    color: var(--primary-color);
}

.map-container {
    margin-top: 30px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.contact-form-container {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
}

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

.form-status {
    margin-top: 15px;
    padding: 10px;
    border-radius: 5px;
    display: none;
}

.status-success {
    background-color: #d4edda;
    color: #155724;
    display: block;
}

.status-error {
    background-color: #f8d7da;
    color: #721c24;
    display: block;
}

/* Footer */
.footer {
    background-color: var(--black);
    color: var(--white);
    padding: 60px 0 20px;
}

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

.footer-col h4 {
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a:hover {
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

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

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Mobile Responsive */
@media (max-width: 992px) {
    .hero-content h1 { font-size: 2.5rem; }
    .about-grid, .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 5px;
        box-shadow: var(--shadow);
    }
    
    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero-btns {
        flex-direction: column;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in { animation: fadeInUp 1s ease-out; }