/* --- VARIABLES (Change colors here easily) --- */
:root {
    --primary-color: #1e3a8a; /* Navy Blue */
    --accent-color: #d97706;  /* Warm Amber for buttons */
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --white: #ffffff;
    --bg-light: #f3f4f6;
    --bg-dark: #111827;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    line-height: 1.6;
}

/* --- UTILITIES --- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

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

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

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

/* --- BUTTONS --- */
.btn-primary {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    padding: 12px 24px;
    border-radius: 5px;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-primary:hover {
    background-color: #b45309;
}

.btn-large {
    font-size: 1.2rem;
    padding: 15px 30px;
    margin-top: 20px;
}

/* --- HEADER & NAV --- */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-links a {
    margin-left: 20px;
    font-weight: 500;
    color: var(--text-dark);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* --- HERO SECTION --- */
.hero {
    background-color: var(--primary-color);
    color: var(--white);
    height: 90vh; /* 90% of screen height */
    display: flex;
    align-items: center;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

/* --- SERVICES SECTION --- */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--primary-color);
}

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

.card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border-top: 4px solid var(--primary-color);
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-5px);
}

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

/* --- CONTACT & FOOTER --- */
.contact-content {
    text-align: center;
}

.social-links {
    margin-top: 40px;
}

.social-links a {
    color: var(--white);
    margin: 0 15px;
    opacity: 0.8;
}

.social-links a:hover { opacity: 1; }

footer {
    background: #000;
    color: #888;
    text-align: center;
    padding: 20px 0;
    font-size: 0.9rem;
}

/* --- MOBILE RESPONSIVENESS --- */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
        width: 30px;
    }
    
    .mobile-menu-btn span {
        display: block;
        width: 100%;
        height: 3px;
        background-color: var(--primary-color);
        margin-bottom: 5px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        text-align: center;
    }

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

    .nav-links a {
        margin: 10px 0;
    }

    .hero-content h1 { font-size: 2rem; }
    
    .about-grid { grid-template-columns: 1fr; }
    
    .about-image { order: 2; }
    .about-text { order: 1; }
}