/* Global Styles for Quality Asphalt Paving */
:root {
    --brand-black: #111827;     /* Asphalt Black */
    --brand-grey: #374151;      /* Pavement Grey */
    --brand-yellow: #FACC15;    /* Safety Yellow */
    --brand-yellow-hover: #EAB308;
    --text-light: #F9FAFB;
    --text-dark: #1F2937;
    --text-muted: #6B7280;
    --bg-light: #F3F4F6;
    --bg-white: #FFFFFF;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; color: var(--text-dark); background-color: var(--bg-light); line-height: 1.6; }

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

/* Buttons */
.btn-primary {
    background-color: var(--brand-yellow);
    color: var(--brand-black);
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-block;
    transition: background-color 0.3s ease;
    border: none;
    cursor: pointer;
}
.btn-primary:hover { background-color: var(--brand-yellow-hover); }

.btn-outline {
    background-color: transparent;
    color: var(--brand-yellow);
    border: 2px solid var(--brand-yellow);
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
    display: inline-block;
    transition: all 0.3s ease;
}
.btn-outline:hover { background-color: var(--brand-yellow); color: var(--brand-black); }

/* Navigation */
header {
    background-color: var(--brand-black);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 2px;
}
.logo span { color: var(--brand-yellow); }

/* Responsive Logo Image */
.logo-img {
    height: 120px;
    max-height: 120px;
    width: auto;
    border-radius: 12px;
    border: 2px solid var(--brand-yellow);
    box-shadow: 0 15px 25px rgba(0,0,0,0.6);
    transition: height 0.3s ease;
}

@media (max-width: 768px) {
    header .container.navbar {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .logo-img {
        height: 80px;
        margin-bottom: 10px;
    }
    .nav-links {
        flex-direction: column;
        gap: 15px;
        margin-top: 10px;
    }
    .nav-links a {
        font-size: 1rem;
    }
    header {
        padding: 15px 0;
    }
}

.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}
.nav-links a:hover { color: var(--brand-yellow); }

/* Hero Section */
.hero {
    background-color: var(--brand-grey);
    background-image: linear-gradient(rgba(17, 24, 39, 0.8), rgba(17, 24, 39, 0.8)), url('hero_bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 150px 20px;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .hero {
        padding: 80px 20px;
    }
}
.hero h1 { font-size: 3.5rem; margin-bottom: 20px; font-weight: 900; line-height: 1.2; text-transform: uppercase; }
.hero p { font-size: 1.25rem; margin-bottom: 40px; color: #D1D5DB; max-width: 800px; }

/* Sections */
.section-padding { padding: 80px 0; }
.bg-white { background-color: var(--bg-white); }
.bg-dark { background-color: var(--brand-black); color: var(--text-light); }

.section-title { font-size: 2.5rem; font-weight: 800; text-transform: uppercase; margin-bottom: 20px; color: var(--brand-black); }
.section-title.light { color: var(--text-light); }

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.service-card {
    background-color: var(--bg-white);
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border-bottom: 4px solid var(--brand-yellow);
    transition: transform 0.3s ease;
}
.service-card:hover { transform: translateY(-5px); }
.service-card h3 { font-size: 1.5rem; margin-bottom: 15px; color: var(--brand-black); }
.service-card p { color: var(--text-muted); margin-bottom: 20px; }

/* Footer */
footer {
    background-color: var(--brand-black);
    color: var(--text-light);
    padding: 60px 0 20px;
    text-align: center;
}