/* MODERN STATIC CSS BASE */
:root {
    --primary: #2d5a27;      /* BuildCo Green */
    --primary-dark: #1e3d1a;
    --white: #ffffff;
    --grey-light: #f9f9f9;
    --grey-dark: #333333;
    --text-main: #444444;
    --max-width: 1200px;
    --shadow: 0 10px 30px rgba(0,0,0,0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    line-height: 1.7;
    overflow-x: hidden;
}

/* NAVIGATION */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    max-width: var(--max-width);
    margin: 0 auto;
}

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

.nav__link {
    text-decoration: none;
    color: var(--grey-dark);
    font-weight: 600;
    transition: 0.3s;
}

.nav__link:hover, .nav__link.active {
    color: var(--primary);
}

.nav__logo img {
    height: 50px;
}

/* HERO SECTION */
.hero {
    display: flex;
    align-items: center;
    padding: 5rem 5%;
    max-width: var(--max-width);
    margin: 0 auto;
    gap: 4rem;
}

.hero__text { flex: 1; }
.hero__image { flex: 1; }
.hero__image img { width: 100%; border-radius: 8px; box-shadow: var(--shadow); }

.heading-primary--main {
    display: block;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--primary);
}

.heading-primary--sub {
    display: block;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--text-main);
    margin-bottom: 1rem;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
    border: 2px solid transparent;
}

.btn--green { background: var(--primary); color: var(--white); }
.btn--green:hover { background: var(--primary-dark); transform: translateY(-3px); }

.btn--white { border: 2px solid var(--primary); color: var(--primary); margin-left: 1rem; }

/* SERVICES GRID */
.section-services { padding: 5rem 5%; background: var(--grey-light); }

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: var(--max-width);
    margin: 3rem auto;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.service-card:hover { transform: translateY(-10px); box-shadow: var(--shadow); }
.service-card img { height: 60px; margin-bottom: 1.5rem; }

/* FOOTER */
.footer { background: var(--grey-dark); color: var(--white); padding: 5rem 5% 2rem; }
.footer__content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #444;
    padding-bottom: 3rem;
}

.footer__brand img { height: 40px; margin-bottom: 1rem; }
.footer__links ul { list-style: none; margin-top: 1rem; }
.footer__links a { color: #bbb; text-decoration: none; font-size: 0.9rem; }
.footer__links a:hover { color: var(--white); }

.footer__bottom { text-align: center; padding-top: 2rem; font-size: 0.8rem; color: #888; }

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero { flex-direction: column; text-align: center; }
    .nav__list { display: none; } /* Would usually add a burger menu here */
}