:root {
    --primary-color: #0f172a;
    --secondary-color: #1e293b;
    --accent-color: #eab308;
    --text-light: #f8fafc;
    --text-dark: #334155;
    --transition: all 0.3s ease;
}

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

body {
    line-height: 1.6;
    color: var(--text-dark);
    scroll-behavior: smooth;
}

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

h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-subtitle {
    text-align: center;
    color: #64748b;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* --- HEADER --- */
header {
    background: var(--primary-color);
    color: var(--text-light);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

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

.logo {
    font-size: 1.3rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

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

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.cta-btn {
    background: var(--accent-color);
    color: var(--primary-color);
    padding: 0.6rem 1.1rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: var(--transition);
}

.cta-btn:hover {
    background: #ca8a04;
    transform: translateY(-2px);
}

.menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.8rem;
    color: var(--text-light);
}

/* --- HERO --- */
.hero {
    background: linear-gradient(rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.7)),
        url('https://images.unsplash.com/photo-1557597774-9d273605dfa9?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-light);
    padding: 1rem;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 700px;
}

/* --- SERVICES --- */
.services {
    padding: 5rem 0;
    background: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border-top: 4px solid var(--primary-color);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    border-top-color: var(--accent-color);
}

.service-icon {
    font-size: 2.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* --- INFO BANNER --- */
.info-banner {
    background: var(--secondary-color);
    color: var(--text-light);
    padding: 3rem 0;
    text-align: center;
}

.info-grid {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
}

.info-item h3 {
    font-size: 2.2rem;
    color: var(--accent-color);
}

/* --- FOOTER --- */
footer {
    background: var(--primary-color);
    color: #94a3b8;
    text-align: center;
    padding: 2rem 0;
    font-size: 0.9rem;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {

    /* Shrink logo */
    .logo {
        font-size: 1rem;
    }

    /* Mobile navigation menu */
    .nav-links {
        display: none;
        flex-direction: column;
        background: var(--primary-color);
        position: absolute;
        top: 70px;
        right: 20px;
        width: 220px;
        padding: 1rem;
        border-radius: 10px;
        box-shadow: 0 5px 15px rgba(0,0,0,0.25);
        gap: 1rem;
    }

    .nav-links li {
        text-align: center;
    }

    .nav-links a {
        font-size: 1rem;
        display: block;
        padding: 0.5rem 0;
    }

    .nav-links .cta-btn {
        margin-top: 0.5rem;
        font-size: 1rem;
    }

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

    .menu-toggle {
        display: block;
    }

    /* Hero adjustments */
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 0.95rem;
    }

    /* Stack services grid */
    .services-grid {
        grid-template-columns: 1fr;
    }
}