/* Global Reset & Variables */
:root {
    --primary-color: #ffb400; /* Construction Yellow */
    --secondary-color: #2c3e50; /* Dark Blue/Slate */
    --text-color: #333;
    --light-bg: #f4f4f4;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

* {
    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-color);
    background-color: var(--white);
}

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

ul {
    list-style: none;
}

/* Header & Navigation */
header {
    background: var(--secondary-color);
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

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

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: var(--white);
    font-weight: 500;
    padding: 8px 15px;
    transition: var(--transition);
    border-radius: 4px;
}

.nav-links a:hover, .nav-links a.active {
    background: var(--primary-color);
    color: var(--secondary-color);
}

/* Mobile Menu Toggle (Simplified for CSS) */
@media(max-width: 768px) {
    .nav-flex {
        flex-direction: column;
        gap: 10px;
    }
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        font-size: 0.9rem;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://placehold.co/1920x1080/2c3e50/ffb400?text=Construction+Site+Image');
    background-size: cover;
    background-position: center;
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background: var(--primary-color);
    color: var(--secondary-color);
    padding: 12px 30px;
    font-weight: bold;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    background: #e09e00;
    transform: translateY(-2px);
}

/* Sections General */
.section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--secondary-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin: 10px auto 0;
}

/* About & Services Grid */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    align-items: center;
}

.card {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 5px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.card img {
    max-width: 100%;
    border-radius: 5px;
    margin-bottom: 15px;
}

/* Contact Form */
.contact-container {
    background: var(--light-bg);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    background: #fff;
    padding: 15px;
    border: 1px solid #ddd;
}

.checkbox-group input {
    margin-top: 5px;
    width: 20px;
    height: 20px;
}

.checkbox-group a {
    color: var(--secondary-color);
    text-decoration: underline;
    font-weight: bold;
}

button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    color: #666;
}

/* Legal Pages */
.legal-content {
    background: var(--white);
    padding: 40px;
    border: 1px solid #ddd;
}

.highlight-box {
    background: #eef2f5;
    border-left: 5px solid var(--secondary-color);
    padding: 20px;
    margin: 20px 0;
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 40px 0 20px;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 20px;
}

.footer-box h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.footer-box ul li {
    margin-bottom: 10px;
}

.copyright {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    font-size: 0.9rem;
}