/* --- CLEAN RESET --- */
html, body, div, span, h1, h2, h3, p, a, i, ul, li, header, footer, nav, section, main {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: #333333;
    background-color: #f9fdf9;
    overflow-x: hidden;
}

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

/* --- HEADER & NAVIGATION --- */
header {
    background-color: #ffffff;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: #2e7d32;
    font-family: 'Montserrat', sans-serif;
}

.logo i { margin-right: 10px; }

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-links li { margin-left: 25px; }

.nav-links a {
    text-decoration: none;
    color: #333333;
    font-weight: 600;
    transition: 0.3s;
}

.nav-links a:hover { color: #4caf50; }

.btn-small {
    background-color: #2e7d32;
    color: #ffffff !important;
    padding: 8px 18px;
    border-radius: 5px;
}

.mobile-menu-icon {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #2e7d32;
}

/* --- HERO SECTION --- */
.hero {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('assets/images/tree.jpg');
    background-size: cover;
    background-position: center;
    height: 60vh;
    display: flex;
    align-items: center;
    color: #ffffff;
    text-align: center;
}

.hero-content { width: 100%; }

.hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 3rem;
    margin-bottom: 15px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 700;
    transition: 0.3s;
}

.btn-primary {
    background-color: #4caf50;
    color: #ffffff;
}

.btn-primary:hover { background-color: #2e7d32; }

/* --- SERVICES SECTION --- */
.services { padding: 80px 0; }

.section-title {
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #1b5e20;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border-bottom: 5px solid #4caf50;
    transition: transform 0.3s;
}

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

.service-card i {
    font-size: 2.5rem;
    color: #2e7d32;
    margin-bottom: 20px;
}

.service-card h3 { margin-bottom: 15px; font-family: 'Montserrat', sans-serif; }

/* --- FOOTER --- */
footer {
    background-color: #1b5e20;
    color: #ffffff;
    padding: 40px 0;
    text-align: center;
}

.footer-content p { margin-bottom: 10px; }

/* --- MOBILE RESPONSIVENESS --- */
@media (max-width: 768px) {
    .mobile-menu-icon { display: block; }
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background-color: #ffffff;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }
    .nav-links.active { display: flex; }
    .nav-links li { margin: 10px 0; }
    .hero h1 { font-size: 2rem; }
}