/* Palette: Construction Orange, Concrete Grey, White */
:root {
    --orange: #FF6600;
    --orange-dark: #cc5200;
    --grey: #333333;
    --light-grey: #f4f4f4;
    --white: #FFFFFF;
    
    --font-head: 'Teko', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

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

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

.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.section-padding { padding: 80px 0; }
a { text-decoration: none; color: inherit; transition: 0.3s; }
img { max-width: 100%; height: auto; display: block; border-radius: 4px; }

/* Top Header */
.top-header { background: var(--grey); color: #ccc; font-size: 0.9rem; padding: 8px 0; }
.top-flex { display: flex; justify-content: space-between; }
.top-flex a { color: var(--orange); font-weight: 700; }

/* Main Header */
.header { background: var(--white); padding: 20px 0; box-shadow: 0 4px 15px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 1000; }
.header-grid { display: flex; justify-content: space-between; align-items: center; }

.logo { font-family: var(--font-head); font-size: 2.2rem; font-weight: 600; color: var(--grey); letter-spacing: 1px; line-height: 1; }
.orange-text { color: var(--orange); }

.nav a { margin-left: 25px; font-weight: 500; color: var(--grey); text-transform: uppercase; font-size: 0.9rem; }
.nav a:hover, .nav a.active { color: var(--orange); }

.mobile-toggle { display: none; background: var(--orange); color: var(--white); border: none; padding: 5px 12px; font-weight: 700; cursor: pointer; border-radius: 4px; }

/* Mobile Menu */
.mobile-menu { position: fixed; top: 0; right: -100%; width: 300px; height: 100%; background: var(--grey); z-index: 2000; padding: 50px; transition: 0.3s; border-left: 5px solid var(--orange); }
.mobile-menu.active { right: 0; }
.close-btn { background: none; border: none; font-size: 1.5rem; color: var(--white); margin-bottom: 30px; cursor: pointer; }
.mobile-menu a { display: block; font-family: var(--font-head); font-size: 1.8rem; color: var(--white); margin-bottom: 20px; }
.mobile-menu a:hover { color: var(--orange); }

@media (max-width: 900px) {
    .nav { display: none; }
    .mobile-toggle { display: block; }
}

/* Hero */
.hero { height: 80vh; position: relative; display: flex; align-items: center; justify-content: flex-start; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; z-index: 0; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(51,51,51,0.9) 0%, rgba(51,51,51,0.3) 100%); z-index: 1; }
.hero-content { position: relative; z-index: 2; color: var(--white); max-width: 600px; }

.badge { background: var(--orange); padding: 5px 15px; font-weight: 700; font-size: 0.8rem; display: inline-block; margin-bottom: 15px; border-radius: 2px; }
.hero h1 { font-family: var(--font-head); font-size: 4.5rem; line-height: 1; margin-bottom: 20px; text-transform: uppercase; }
.hero p { font-size: 1.3rem; margin-bottom: 40px; color: #ddd; }

.hero-btns { display: flex; gap: 20px; }
.btn-orange { background: var(--orange); color: var(--white); padding: 12px 30px; font-weight: 700; border-radius: 2px; border: none; cursor: pointer; transition: 0.3s; }
.btn-orange:hover { background: var(--orange-dark); }
.btn-white { background: var(--white); color: var(--grey); padding: 12px 30px; font-weight: 700; border-radius: 2px; transition: 0.3s; }
.btn-white:hover { background: #ddd; }

/* Features */
.section-head h2 { font-family: var(--font-head); font-size: 3rem; color: var(--grey); margin-bottom: 10px; line-height: 1; }
.orange-bar { width: 80px; height: 5px; background: var(--orange); margin-bottom: 40px; }
.center { text-align: center; }
.center .orange-bar { margin: 0 auto 40px; }
.left { margin-right: auto; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.feat-card { background: var(--white); padding: 40px 30px; border-bottom: 4px solid var(--orange); box-shadow: 0 5px 15px rgba(0,0,0,0.05); transition: 0.3s; }
.feat-card:hover { transform: translateY(-5px); }
.icon { font-size: 3rem; margin-bottom: 20px; }
.feat-card h3 { font-family: var(--font-head); font-size: 1.8rem; margin-bottom: 10px; }

/* Project Teaser */
.project-teaser { background: var(--grey); color: var(--white); padding: 80px 0; }
.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.pt-text h3 { font-family: var(--font-head); font-size: 3rem; color: var(--orange); margin-bottom: 20px; }
.specs { margin: 30px 0; list-style: none; border-left: 3px solid var(--orange); padding-left: 20px; }
.link-arrow { font-weight: 700; color: var(--orange); font-size: 1.1rem; }

/* Services List */
.services-list { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.service-item { display: flex; gap: 20px; background: var(--white); padding: 30px; border: 1px solid #ddd; }
.s-icon { font-size: 2.5rem; }
.s-content h3 { font-family: var(--font-head); font-size: 1.6rem; margin-bottom: 10px; }

/* Projects Grid */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.proj-card { background: var(--white); border: 1px solid #eee; overflow: hidden; transition: 0.3s; }
.proj-card:hover { box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.proj-card img { width: 100%; height: 250px; object-fit: cover; }
.proj-info { padding: 25px; }
.proj-info h3 { font-family: var(--font-head); font-size: 1.8rem; margin-bottom: 5px; color: var(--grey); }
.proj-info span { font-weight: 700; color: var(--orange); display: block; margin-bottom: 15px; font-size: 0.9rem; text-transform: uppercase; }
.btn-outline { border: 2px solid var(--grey); color: var(--grey); padding: 8px 20px; font-weight: 700; display: inline-block; margin-top: 15px; }
.btn-outline:hover { background: var(--grey); color: var(--white); }

/* Calculator */
.calc-wrapper { max-width: 700px; margin: 0 auto; background: var(--white); padding: 50px; border-top: 6px solid var(--orange); box-shadow: 0 10px 40px rgba(0,0,0,0.05); }
.calc-head { text-align: center; margin-bottom: 40px; }
.calc-head h1 { font-family: var(--font-head); font-size: 3rem; color: var(--grey); line-height: 1; }

.build-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.f-grp { margin-bottom: 25px; }
.f-grp label { display: block; font-weight: 700; margin-bottom: 8px; color: var(--grey); }
.f-grp input, .f-grp select, .f-grp textarea { width: 100%; padding: 12px; border: 1px solid #ccc; background: #f9f9f9; font-family: var(--font-body); font-size: 1rem; }
.full { width: 100%; font-size: 1.2rem; padding: 15px; }

.result-box { margin-top: 40px; padding: 30px; background: #f0f0f0; text-align: center; border-radius: 4px; border: 1px dashed var(--grey); }
.final-price { font-family: var(--font-head); font-size: 4rem; color: var(--orange); display: block; margin: 10px 0; }
.disclaimer { font-size: 0.8rem; color: #777; margin-bottom: 20px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 50px; background: var(--white); padding: 50px; }
.contact-info h2 { font-family: var(--font-head); font-size: 2.5rem; color: var(--orange); margin-bottom: 20px; }
.info-list { list-style: none; margin-top: 30px; font-size: 1.1rem; }
.info-list li { margin-bottom: 15px; }

/* Legal */
.legal-text { max-width: 800px; margin: 0 auto; background: var(--white); padding: 50px; }
.legal-text h1 { font-family: var(--font-head); font-size: 3rem; }

/* Footer */
.footer { background: var(--grey); color: #999; padding: 60px 0 20px; margin-top: 80px; }
.footer-content { display: flex; justify-content: space-between; align-items: center; margin-bottom: 40px; }
.f-brand h4 { font-family: var(--font-head); font-size: 2rem; color: var(--white); margin-bottom: 5px; }
.f-nav a { margin-left: 20px; color: #ccc; }
.f-nav a:hover { color: var(--orange); }
.copyright { text-align: center; font-size: 0.8rem; border-top: 1px solid #444; padding-top: 20px; }

@media (max-width: 900px) {
    .hero h1 { font-size: 3rem; }
    .hero-btns { flex-direction: column; }
    .grid-3, .split-layout, .services-list, .projects-grid, .contact-grid, .build-form .form-row { grid-template-columns: 1fr; }
    .pt-img { order: -1; }
    .footer-content { flex-direction: column; gap: 20px; text-align: center; }
}