/*
Theme Name: Rooftop Editorial Concept
Description: Geometric, bold, and high-performance design for roofing and construction experts.
Author: Senior Frontend Designer
Version: 1.0
*/

:root {
    --c-bg: #F9FAFB;
    --c-text: #111827;
    --c-accent: #E11D48; /* Crimson Red */
    --c-muted: #6B7280;
    --c-border: #E5E7EB;
    --f-main: 'Hanken Grotesk', sans-serif;
    --f-display: 'Fraunces', serif;
}

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

body {
    background-color: var(--c-bg);
    color: var(--c-text);
    font-family: var(--f-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: var(--f-display); line-height: 1.1; }

a { text-decoration: none; color: inherit; transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1); }

.container { max-width: 1440px; margin: 0 auto; padding: 0 40px; }

/* Navigation */
.site-header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: 90px;
    display: flex;
    align-items: center;
}

.header-wrap { display: flex; justify-content: space-between; align-items: center; width: 100%; }

.logo { font-family: var(--f-display); font-size: 1.5rem; font-weight: 700; color: var(--c-text); }
.logo span { color: var(--c-accent); font-style: italic; }

.main-nav ul { display: flex; list-style: none; gap: 40px; }
.main-nav a { font-weight: 700; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; color: var(--c-muted); }
.main-nav a:hover, .main-nav .current-menu-item a { color: var(--c-text); }

/* Hero Section */
.hero-roof {
    padding: 120px 0;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 80px;
    align-items: center;
    border-bottom: 1px solid var(--c-border);
    background: #fff;
}

.hero-text h1 { font-size: clamp(3.5rem, 7vw, 6.5rem); margin-bottom: 40px; letter-spacing: -2px; }
.hero-text p { font-size: 1.25rem; color: var(--c-muted); max-width: 500px; margin-bottom: 50px; }

.hero-visual {
    position: relative;
    clip-path: polygon(10% 0, 100% 0, 100% 100%, 0 100%);
    overflow: hidden;
    height: 600px;
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }

.rf-btn {
    display: inline-flex;
    align-items: center;
    padding: 20px 45px;
    background: var(--c-text);
    color: #fff;
    font-weight: 900;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 2px;
    border-radius: 4px;
}
.rf-btn:hover { background: var(--c-accent); transform: translateX(10px); }

/* Tech Strip */
.roof-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: var(--c-text);
    color: #fff;
}
.strip-item { padding: 60px 40px; border-right: 1px solid rgba(255,255,255,0.1); text-align: center; }
.strip-item:last-child { border: none; }
.s-num { font-family: var(--f-display); font-size: 2.5rem; display: block; color: var(--c-accent); }
.s-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 2px; opacity: 0.6; }

/* Editorial Grid */
.section-pad { padding: 150px 0; }
.section-title { font-size: 4rem; margin-bottom: 100px; text-align: left; }

.roof-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 40px;
}

.roof-card { grid-column: span 4; display: flex; flex-direction: column; }
.roof-card:nth-child(1), .roof-card:nth-child(6) { grid-column: span 8; }

.card-img-box { position: relative; overflow: hidden; margin-bottom: 30px; aspect-ratio: 16/10; background: #eee; }
.roof-card:nth-child(1) .card-img-box, .roof-card:nth-child(6) .card-img-box { aspect-ratio: 21/9; }
.card-img-box img { width: 100%; height: 100%; object-fit: cover; transition: 0.8s; }
.roof-card:hover img { transform: scale(1.05); }

.card-cat { font-weight: 900; font-size: 0.7rem; text-transform: uppercase; color: var(--c-accent); margin-bottom: 15px; display: block; }
.roof-card h3 { font-size: 1.8rem; margin-bottom: 20px; }
.roof-card:nth-child(1) h3, .roof-card:nth-child(6) h3 { font-size: 2.8rem; }
.card-excerpt { color: var(--c-muted); font-size: 1rem; margin-bottom: 30px; }

/* Geometry Block */
.geo-block {
    background: #fff;
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
}
.geo-text { padding: 120px 10%; display: flex; flex-direction: column; justify-content: center; }
.geo-text h2 { font-size: 3.5rem; margin-bottom: 40px; }
.geo-text p { font-size: 1.3rem; color: var(--c-muted); margin-bottom: 40px; }

.geo-visual { height: 700px; position: relative; overflow: hidden; }
.geo-visual img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1); }

/* Pagination */
.roof-pagination { display: flex; justify-content: center; gap: 15px; margin-top: 100px; }
.rf-link {
    padding: 15px 30px;
    border: 1px solid var(--c-border);
    font-weight: 900;
    font-size: 0.8rem;
    text-transform: uppercase;
}
.rf-link.current { background: var(--c-accent); color: #fff; border-color: var(--c-accent); }
.rf-link:hover:not(.current) { border-color: var(--c-text); background: var(--c-text); color: #fff; }

/* Footer */
.site-footer { padding: 150px 0 60px; background: #fff; border-top: 1px solid var(--c-border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.5fr; gap: 100px; margin-bottom: 100px; }
.f-label { font-size: 0.65rem; font-weight: 900; text-transform: uppercase; letter-spacing: 2px; color: var(--c-accent); margin-bottom: 20px; display: block; }
.f-val { font-size: 1.1rem; font-weight: 700; margin-bottom: 30px; display: block; font-family: var(--f-display); }

.footer-bottom { padding-top: 40px; border-top: 1px solid var(--c-border); display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--c-muted); }

/* Mobile Menu */
.burger { display: none; cursor: pointer; }

@media (max-width: 1200px) {
    .hero-roof { grid-template-columns: 1fr; text-align: center; }
    .hero-text p { margin: 0 auto 40px; }
    .hero-visual { height: 400px; clip-path: none; margin-top: 50px; }
    .roof-strip { grid-template-columns: repeat(2, 1fr); }
    .roof-grid { grid-template-columns: repeat(2, 1fr); }
    .roof-card, .roof-card:nth-child(1), .roof-card:nth-child(6) { grid-column: span 1; }
    .geo-block { grid-template-columns: 1fr; }
    .geo-visual { height: 400px; }
}

@media (max-width: 768px) {
    .container { padding: 0 25px; }
    .main-nav { display: none; }
    .burger { display: block; font-weight: 900; border: 1px solid var(--c-border); padding: 8px 15px; border-radius: 4px; }
    .roof-strip { grid-template-columns: 1fr; }
    .roof-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 60px; }
    .section-title { font-size: 2.5rem; }
}

body.menu-open .main-nav {
    display: flex; position: fixed; top: 90px; left: 0; right: 0; bottom: 0; background: #fff;
    flex-direction: column; align-items: center; justify-content: center; z-index: 2000;
}
body.menu-open .main-nav ul { flex-direction: column; align-items: center; }
body.menu-open .main-nav a { font-size: 1.5rem; }