:root {
    --safety-yellow: #f1c40f;
    --dark-bg: #1e1e1e;
    --black: #000000;
    --concrete: #f2f2f2;
    --white: #ffffff;
    --text-grey: #333333;
    
    --font-heading: 'Archivo Black', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--concrete);
    color: var(--text-grey);
    line-height: 1.6;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { width: 90%; max-width: 1200px; margin: 0 auto; }

/* Safety Strip */
.safety-strip { background: repeating-linear-gradient(45deg, var(--black), var(--black) 10px, var(--safety-yellow) 10px, var(--safety-yellow) 20px); padding: 5px 0; color: #fff; text-shadow: 1px 1px 2px #000; font-weight: bold; font-size: 0.8rem; }
.strip-content { display: flex; justify-content: space-between; background: rgba(0,0,0,0.8); padding: 5px 10px; }

/* Header */
.const-header { background-color: var(--dark-bg); padding: 20px 0; position: sticky; top: 0; z-index: 1000; border-bottom: 4px solid var(--safety-yellow); }
.header-flex { display: flex; justify-content: space-between; align-items: center; }

.logo { font-family: var(--font-heading); font-size: 2rem; color: var(--white); text-transform: uppercase; letter-spacing: 1px; }
.yellow-text { color: var(--safety-yellow); }
.icon { font-size: 1.5rem; margin-left: 10px; }

.main-nav ul { display: flex; gap: 25px; align-items: center; }
.main-nav a { color: #ccc; font-weight: 700; text-transform: uppercase; font-size: 0.9rem; }
.main-nav a:hover, .main-nav a.active { color: var(--safety-yellow); }

.btn-yellow { background-color: var(--safety-yellow); color: var(--black) !important; padding: 10px 25px; font-weight: bold; border-radius: 0; box-shadow: 3px 3px 0 #000; transition: 0.2s; }
.btn-yellow:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 #000; }

.mobile-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 6px; }
.mobile-toggle span { width: 35px; height: 4px; background-color: var(--safety-yellow); }

/* Mobile Menu */
.mobile-menu {
    position: fixed; top: 0; right: -100%; width: 250px; height: 100%;
    background-color: var(--dark-bg); z-index: 2000;
    display: flex; flex-direction: column; padding: 40px; gap: 20px;
    transition: 0.3s ease; border-left: 5px solid var(--safety-yellow);
}
.mobile-menu.active { right: 0; }
.close-menu { align-self: flex-end; font-size: 1.5rem; color: var(--white); background: none; border: none; cursor: pointer; }
.mobile-menu a { font-family: var(--font-heading); font-size: 1.2rem; color: var(--white); border-bottom: 1px solid #444; padding-bottom: 10px; text-transform: uppercase; }

/* Hero */
.hero-const {
    height: 600px;
    background-size: cover;
    background-position: center;
    position: relative;
}
.hero-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(90deg, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.2) 100%);
    display: flex; align-items: center;
}
.hero-content { width: 90%; max-width: 1200px; margin: 0 auto; color: var(--white); padding: 0 20px; }
.badge { background-color: var(--safety-yellow); color: var(--black); padding: 5px 10px; font-weight: bold; font-size: 0.9rem; display: inline-block; margin-bottom: 20px; }
.hero-content h1 { font-family: var(--font-heading); font-size: 4rem; line-height: 1.1; margin-bottom: 20px; text-transform: uppercase; }
.hero-content p { font-size: 1.2rem; max-width: 600px; margin-bottom: 40px; opacity: 0.9; }

.btn-group { display: flex; gap: 20px; }
.btn-outline { border: 2px solid var(--white); color: var(--white); padding: 15px 30px; font-weight: bold; text-transform: uppercase; }
.btn-solid { background-color: var(--safety-yellow); color: var(--black); padding: 15px 30px; font-weight: bold; text-transform: uppercase; border: 2px solid var(--safety-yellow); }
.btn-outline:hover { background-color: var(--white); color: var(--black); }
.btn-solid:hover { background-color: transparent; color: var(--white); border-color: var(--white); }

/* Projects Grid */
.section-padding { padding: 80px 0; }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-family: var(--font-heading); font-size: 2.5rem; color: var(--black); margin-bottom: 15px; }
.bar-yellow { width: 80px; height: 6px; background-color: var(--safety-yellow); margin: 0 auto; }

.project-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 30px; }
.project-card { background: var(--white); box-shadow: 0 5px 15px rgba(0,0,0,0.1); border-bottom: 5px solid var(--black); transition: 0.3s; }
.project-card:hover { transform: translateY(-10px); border-bottom-color: var(--safety-yellow); }
.p-img { position: relative; height: 250px; }
.p-img img { width: 100%; height: 100%; object-fit: cover; }
.p-tag { position: absolute; top: 10px; right: 10px; background: var(--black); color: var(--white); padding: 5px 10px; font-size: 0.7rem; font-weight: bold; }
.p-info { padding: 25px; }
.p-info h3 { font-family: var(--font-heading); margin-bottom: 10px; color: var(--dark-bg); }
.p-info a { color: var(--black); font-weight: bold; text-transform: uppercase; font-size: 0.9rem; border-bottom: 2px solid var(--safety-yellow); display: inline-block; margin-top: 15px; }

/* Stats */
.stats-banner { background-color: var(--safety-yellow); padding: 60px 0; color: var(--black); }
.stats-flex { display: flex; justify-content: space-around; text-align: center; }
.stat-box .num { display: block; font-family: var(--font-heading); font-size: 3.5rem; line-height: 1; }
.stat-box .label { font-weight: bold; text-transform: uppercase; font-size: 1.1rem; }

/* Services Page */
.page-head { margin-bottom: 60px; border-left: 10px solid var(--safety-yellow); padding-left: 20px; }
.page-head h1 { font-family: var(--font-heading); font-size: 3rem; color: var(--black); line-height: 1; }

.services-list { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.service-row { display: flex; align-items: flex-start; gap: 20px; background: var(--white); padding: 30px; border: 1px solid #ddd; }
.s-icon { font-size: 3rem; line-height: 1; }
.s-content h3 { font-family: var(--font-heading); margin-bottom: 10px; color: var(--dark-bg); }

/* Testimonials */
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.review-card { background: var(--dark-bg); color: #ccc; padding: 40px; position: relative; }
.review-card.highlight { background: var(--black); border: 2px solid var(--safety-yellow); }
.r-header { margin-bottom: 20px; border-bottom: 1px solid #444; padding-bottom: 10px; }
.r-header strong { display: block; color: var(--white); font-size: 1.2rem; }
.r-header .role { font-size: 0.9rem; color: var(--safety-yellow); }
.review-card p { font-style: italic; margin-bottom: 20px; }
.stars { color: var(--safety-yellow); }

/* Quote Form */
.quote-wrapper { display: flex; gap: 50px; background: var(--white); padding: 50px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.quote-info { flex: 1; background: var(--dark-bg); color: var(--white); padding: 40px; }
.quote-info h2 { font-family: var(--font-heading); color: var(--safety-yellow); margin-bottom: 20px; }
.info-list { margin-top: 40px; }
.i-item { margin-bottom: 20px; }
.i-item strong { display: block; color: var(--safety-yellow); }

.const-form { flex: 1.5; }
.const-form .form-row { display: flex; gap: 20px; margin-bottom: 20px; }
.const-form .col { flex: 1; }
.const-form .full { width: 100%; }
.const-form label { display: block; font-weight: bold; margin-bottom: 5px; font-family: var(--font-heading); font-size: 0.9rem; }
.const-form input, .const-form select, .const-form textarea { width: 100%; padding: 15px; border: 2px solid #eee; background: #f9f9f9; font-family: var(--font-body); font-size: 1rem; }
.const-form input:focus, .const-form select:focus, .const-form textarea:focus { border-color: var(--safety-yellow); outline: none; }
.submit-btn { width: 100%; background: var(--black); color: var(--white); padding: 15px; border: none; font-family: var(--font-heading); font-size: 1.2rem; cursor: pointer; transition: 0.3s; margin-top: 10px; }
.submit-btn:hover { background: var(--safety-yellow); color: var(--black); }

/* Legal */
.legal-content { max-width: 800px; margin: 0 auto; background: var(--white); padding: 60px; border: 1px solid #ddd; }
.legal-content h1 { font-family: var(--font-heading); color: var(--black); }
.legal-content h3 { font-family: var(--font-heading); color: var(--dark-bg); margin-top: 30px; margin-bottom: 10px; }

/* Footer */
.const-footer { background-color: var(--dark-bg); color: #888; padding: 60px 0; margin-top: auto; }
.footer-content { text-align: center; }
.f-brand { font-family: var(--font-heading); font-size: 2rem; color: var(--white); margin-bottom: 20px; }
.f-contact p { margin: 5px 0; color: var(--safety-yellow); font-weight: bold; }
.copyright { margin-top: 40px; font-size: 0.8rem; border-top: 1px solid #333; padding-top: 20px; }

@media (max-width: 900px) {
    .main-nav { display: none; }
    .mobile-toggle { display: flex; }
    .hero-content h1 { font-size: 2.5rem; }
    .project-grid { grid-template-columns: 1fr; }
    .stats-flex { flex-direction: column; gap: 30px; }
    .services-list { grid-template-columns: 1fr; }
    .quote-wrapper { flex-direction: column; }
    .const-form .form-row { flex-direction: column; }
}