/* --- Variables & Reset --- */
:root {
    --primary: #2563eb; /* Professional Blue */
    --secondary: #1e40af;
    --accent: #60a5fa;
    --dark: #1f2937;
    --light: #f3f4f6;
    --white: #ffffff;
    --text-gray: #6b7280;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --glass: rgba(255, 255, 255, 0.9);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

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

.section-padding { padding: 80px 0; }
.bg-light { background-color: #e5e7eb; }
.text-center { text-align: center; }

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

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

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

.primary-btn {
    background-color: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}
.primary-btn:hover { background-color: var(--secondary); transform: translateY(-2px); }

.secondary-btn {
    background-color: transparent;
    border: 2px solid var(--white);
    color: var(--white);
    margin-left: 10px;
}
.secondary-btn:hover { background-color: var(--white); color: var(--primary); }

/* --- Navbar --- */
.navbar {
    background: var(--glass);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    box-shadow: var(--shadow);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--dark);
}

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

.nav-links { display: flex; gap: 30px; }
.nav-links a {
    font-weight: 600;
    color: var(--dark);
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--primary);
    bottom: -5px;
    left: 0;
    transition: 0.3s;
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

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

/* --- Hero Section --- */
.hero {
    height: 80vh;
    background: url('https://images.unsplash.com/photo-1587293852726-70cdb56c2866?ixlib=rb-4.0.3&auto=format&fit=crop&w=1472&q=80') center/cover no-repeat;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 20px;
    animation: fadeInUp 1s ease;
}

.hero-content h1 { font-size: 3.5rem; margin-bottom: 20px; }
.hero-content p { font-size: 1.2rem; margin-bottom: 30px; opacity: 0.9; }

/* --- Page Header --- */
.page-header {
    background: linear-gradient(rgba(37, 99, 235, 0.9), rgba(30, 64, 175, 0.9)), url('https://images.unsplash.com/photo-1553413077-190dd305871c?auto=format&fit=crop&w=1000&q=80') center/cover;
    color: white;
    padding: 60px 0;
    text-align: center;
}

/* --- Cards & Features --- */
.card, .service-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: 0.3s;
    border-bottom: 3px solid transparent;
}

.card:hover, .service-card:hover {
    transform: translateY(-10px);
    border-bottom-color: var(--primary);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.card i, .service-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

/* --- Maps --- */
.map-container {
    width: 100%;
    height: 350px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    z-index: 1;
}
.big-map { height: 450px; margin-bottom: 20px; }

/* --- Forms --- */
.contact-form-wrapper {
    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 select, .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    outline: none;
    transition: 0.3s;
}
.form-group input:focus { border-color: var(--primary); }

/* --- Footer --- */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 50px 0 20px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}
.footer-col h3 { margin-bottom: 20px; color: var(--accent); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a:hover { color: var(--accent); padding-left: 5px; }

/* --- Responsive --- */
@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        right: 0;
        top: 60px;
        background: var(--white);
        flex-direction: column;
        width: 100%;
        text-align: center;
        padding: 20px 0;
        transform: translateY(-150%);
        transition: 0.4s ease;
        box-shadow: var(--shadow);
    }
    .nav-links.nav-active { transform: translateY(0); }
    .hamburger { display: block; }
    .hero-content h1 { font-size: 2.2rem; }
    .content-split { grid-template-columns: 1fr; }
}

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