/* BDA Design — main stylesheet
   Charcoal + gold corporate palette. Mobile-first. */

:root {
	--c-bg: #ffffff;
	--c-fg: #1a1a1a;
	--c-muted: #f5f4f1;
	--c-gray: #4a4a4a;
	--c-line: #e6e3dc;
	--c-gold: #C8A96A;
	--c-gold-dark: #a88a4c;
	--c-dark: #141414;
	--font-body: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	--font-display: 'Playfair Display', Georgia, "Times New Roman", serif;
	--radius: 2px;
	--maxw: 1200px;
	--shadow: 0 12px 40px rgba(0,0,0,.08);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-body); color: var(--c-fg); background: var(--c-bg); line-height: 1.65; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-fg); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--c-gold-dark); }
h1,h2,h3,h4 { font-family: var(--font-display); font-weight: 500; color: var(--c-fg); line-height: 1.2; margin: 0 0 .6em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.2vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }
.narrow { max-width: 820px; }
.screen-reader-text { position: absolute !important; clip: rect(1px,1px,1px,1px); width:1px; height:1px; overflow:hidden; }
.skip-link { position:absolute; left:-9999px; top:0; z-index:1000; background:#000; color:#fff; padding:.5rem 1rem; }
.skip-link:focus { left:0; }

/* Buttons */
.btn { display:inline-block; padding: .85rem 1.6rem; font-weight:500; font-size:.9rem; letter-spacing:.06em; text-transform:uppercase; border-radius: var(--radius); border:1px solid transparent; cursor:pointer; transition: all .25s ease; }
.btn-accent { background: var(--c-gold); color: #fff; border-color: var(--c-gold); }
.btn-accent:hover { background: var(--c-gold-dark); border-color: var(--c-gold-dark); color:#fff; }
.btn-ghost { background: transparent; color: var(--c-fg); border-color: var(--c-fg); }
.btn-ghost.light { color:#fff; border-color:#fff; }
.btn-ghost:hover { background: var(--c-fg); color:#fff; }
.btn-ghost.light:hover { background:#fff; color: var(--c-fg); }
.btn-outline { background: transparent; color: var(--c-fg); border-color: var(--c-line); }
.btn-outline:hover { border-color: var(--c-gold); color: var(--c-gold-dark); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--c-line); }
.header-inner { display: flex; align-items:center; gap: 1.5rem; padding: 1rem 1.25rem; }
.site-branding { flex: 0 0 auto; }
.site-title { display:inline-flex; align-items:baseline; gap:.4rem; font-family: var(--font-display); font-size: 1.4rem; letter-spacing:.05em; }
.brand-mark { color: var(--c-gold); font-weight:700; }
.custom-logo-link img { max-height: 48px; width:auto; }
.main-navigation { flex: 1 1 auto; }
.main-navigation ul { list-style:none; margin:0; padding:0; display:flex; gap: 1.75rem; justify-content:center; }
.main-navigation a { font-size:.9rem; letter-spacing:.05em; text-transform:uppercase; }
.main-navigation a:hover { color: var(--c-gold-dark); }
.header-cta { flex: 0 0 auto; }
.menu-toggle { display:none; background:none; border:0; padding:.5rem; cursor:pointer; }
.menu-toggle .bar { display:block; width:24px; height:2px; background: var(--c-fg); margin:5px 0; transition:.3s; }

@media (max-width: 900px) {
	.menu-toggle { display:block; margin-left:auto; order:2; }
	.header-cta { display:none; }
	.main-navigation { flex-basis: 100%; order: 3; display:none; }
	.main-navigation.is-open { display:block; }
	.main-navigation ul { flex-direction: column; gap: 0; padding: 1rem 0; }
	.main-navigation li { border-bottom: 1px solid var(--c-line); }
	.main-navigation a { display:block; padding: .75rem 0; }
}

/* Hero */
.hero { min-height: 78vh; display:flex; align-items:center; background-size:cover; background-position:center; color:#fff; }
.hero-inner { max-width: 880px; padding: 6rem 1.25rem; }
.hero-eyebrow { display:inline-block; font-size:.75rem; text-transform:uppercase; letter-spacing:.2em; color: var(--c-gold); margin-bottom:1rem; }
.hero-headline { color:#fff; font-size: clamp(2.2rem, 5vw, 4rem); margin-bottom: 1.25rem; }
.hero-intro { color: rgba(255,255,255,.85); font-size: 1.1rem; max-width: 640px; }
.hero-cta { display:flex; gap: 1rem; margin-top: 2rem; flex-wrap:wrap; }

/* Sections */
.section { padding: 5rem 0; }
.section-head { margin-bottom: 3rem; }
.section-head.center { text-align:center; max-width:720px; margin-left:auto; margin-right:auto; }
.section-head.between { display:flex; align-items:flex-end; justify-content:space-between; gap:1rem; flex-wrap:wrap; }
.eyebrow { display:inline-block; font-size:.75rem; text-transform:uppercase; letter-spacing:.2em; color: var(--c-gold-dark); margin-bottom:.75rem; }
.eyebrow.light { color: var(--c-gold); }
.bg-muted { background: var(--c-muted); }
.bg-dark { background: var(--c-dark); color:#fff; }
.bg-dark h2, .bg-dark h3 { color:#fff; }
.two-col { display:grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items:start; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }

/* Services grid */
.services-grid { display:grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service-card { background:#fff; padding: 2rem 1.75rem; border: 1px solid var(--c-line); border-radius: var(--radius); transition: transform .3s ease, box-shadow .3s ease; }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.service-card h3 { font-family: var(--font-display); }
.link-underline { display:inline-block; position:relative; padding-bottom:2px; color: var(--c-gold-dark); font-weight:500; font-size:.9rem; letter-spacing:.05em; }
.link-underline::after { content:''; position:absolute; left:0; bottom:0; width:100%; height:1px; background: var(--c-gold); transform: scaleX(.4); transform-origin: left; transition: transform .3s ease; }
.link-underline:hover::after { transform: scaleX(1); }

/* Why grid */
.why-grid { display:grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.why-grid > div h3 { border-top: 2px solid var(--c-gold); padding-top:1rem; }

/* Projects */
.projects-grid { display:grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.project-card { display:block; position:relative; overflow:hidden; background:#000; border-radius: var(--radius); aspect-ratio: 4/3; }
.project-card img { width:100%; height:100%; object-fit:cover; transition: transform .6s ease, opacity .4s ease; opacity:.85; }
.project-card:hover img { transform: scale(1.05); opacity:1; }
.project-card-body { position:absolute; left:0; right:0; bottom:0; padding: 1.25rem; color:#fff; background: linear-gradient(to top, rgba(0,0,0,.75), transparent); }
.project-card-body h3 { color:#fff; margin:0; font-size:1.15rem; }
.project-card-body .cat { font-size:.75rem; text-transform:uppercase; letter-spacing:.15em; color: var(--c-gold); }

/* Filter chips */
.filter-bar { display:flex; flex-wrap:wrap; gap:.5rem; margin: 1.5rem 0 2rem; }
.filter-chip { padding:.5rem 1rem; border:1px solid var(--c-line); border-radius:99px; font-size:.85rem; letter-spacing:.05em; }
.filter-chip.is-active, .filter-chip:hover { border-color: var(--c-gold); color: var(--c-gold-dark); background:#fff; }

/* Testimonials */
.testimonials-grid { display:grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.testimonial-card { background:#fff; border:1px solid var(--c-line); padding: 2rem; border-radius: var(--radius); }
.testimonial-card .stars { color: var(--c-gold); letter-spacing:.15em; margin-bottom:.75rem; }
.testimonial-card blockquote { margin:0 0 1rem; font-family: var(--font-display); font-size:1.05rem; line-height:1.55; }
.testimonial-card figcaption { color: var(--c-gray); font-size:.9rem; }

/* Process */
.process-list, .process-timeline { list-style:none; padding:0; margin:0; display:grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.process-timeline { grid-template-columns: 1fr; gap: 2rem; max-width: 820px; margin: 0 auto; }
.process-list li, .process-timeline li { background:#fff; padding: 2rem; border-left: 3px solid var(--c-gold); }
.process-timeline li { display:flex; gap: 1.5rem; }
.step { font-family: var(--font-display); font-size: 2rem; color: var(--c-gold); display:block; margin-bottom:.5rem; }

/* Posts grid */
.posts-grid { display:grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 1rem; }
.post-card { background:#fff; border:1px solid var(--c-line); border-radius: var(--radius); overflow:hidden; transition: transform .3s ease, box-shadow .3s ease; }
.post-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.post-card-thumb img { aspect-ratio: 4/3; object-fit: cover; width:100%; }
.post-card-body { padding: 1.5rem; }
.post-card-meta { font-size:.75rem; text-transform:uppercase; letter-spacing:.15em; color: var(--c-gold-dark); margin-bottom:.5rem; }
.post-card-title { font-size: 1.15rem; margin: 0 0 .5rem; }
.post-card-excerpt { font-size:.95rem; color: var(--c-gray); }
.post-card-link { font-size:.85rem; letter-spacing:.05em; color: var(--c-gold-dark); }

@media (max-width: 900px) {
	.services-grid, .projects-grid, .testimonials-grid, .posts-grid, .process-list { grid-template-columns: repeat(2, 1fr); }
	.why-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
	.services-grid, .projects-grid, .testimonials-grid, .posts-grid, .process-list, .why-grid { grid-template-columns: 1fr; }
}

/* Page hero */
.page-hero { background: var(--c-muted); padding: 5rem 0 3rem; text-align:center; border-bottom:1px solid var(--c-line); }
.page-hero p { color: var(--c-gray); max-width:640px; margin: 0 auto; }
.site-main { padding: 3rem 0 5rem; }

/* Prose */
.prose h2 { margin-top: 2.5rem; }
.prose ul { padding-left: 1.25rem; }

/* Service detail */
.services-detail { display:grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; margin-top: 2rem; }
.service-detail-card { border:1px solid var(--c-line); padding: 2rem; background:#fff; }
.service-detail-card ul { padding-left: 1.25rem; color: var(--c-gray); margin-bottom:1.5rem; }
@media (max-width:800px){ .services-detail{ grid-template-columns: 1fr; } }

/* Contact form */
.bda-contact-form { background:#fff; padding: 2rem; border-radius: var(--radius); color: var(--c-fg); }
.bg-dark .bda-contact-form { background:#fff; }
.form-row { display:grid; gap: 1rem; margin-bottom: 1rem; }
.form-row.two { grid-template-columns: 1fr 1fr; }
@media (max-width:600px){ .form-row.two{ grid-template-columns: 1fr; } }
.bda-contact-form label { display:block; }
.bda-contact-form label span { display:block; font-size:.8rem; text-transform:uppercase; letter-spacing:.1em; margin-bottom:.35rem; color: var(--c-gray); }
.bda-contact-form input, .bda-contact-form textarea, .bda-contact-form select { width:100%; padding: .8rem 1rem; border: 1px solid var(--c-line); background:#fff; font: inherit; color: var(--c-fg); border-radius: var(--radius); }
.bda-contact-form input:focus, .bda-contact-form textarea:focus { outline:none; border-color: var(--c-gold); box-shadow: 0 0 0 3px rgba(200,169,106,.15); }
.bda-contact-form .block { margin-bottom:1rem; }
.form-status { margin-top:1rem; font-size:.9rem; }
.form-status.success { color: #256029; }
.form-status.error { color: #b1301c; }

/* Contact list */
.contact-list { list-style:none; padding:0; margin: 1rem 0; }
.contact-list li { padding: .35rem 0; color: rgba(255,255,255,.85); }
.contact-list a { color:#fff; }
.bg-dark .contact-list a:hover { color: var(--c-gold); }

/* FAQ */
.faq-list { margin-top: 2rem; border-top: 1px solid var(--c-line); }
.faq-item { border-bottom: 1px solid var(--c-line); padding: 1rem 0; }
.faq-item summary { cursor:pointer; list-style:none; font-family: var(--font-display); font-size:1.15rem; padding: .5rem 0; position:relative; padding-right: 2rem; }
.faq-item summary::-webkit-details-marker { display:none; }
.faq-item summary::after { content:'+'; position:absolute; right:0; top:.5rem; color: var(--c-gold); font-size:1.5rem; line-height:1; transition: transform .2s ease; }
.faq-item[open] summary::after { content:'−'; }
.faq-answer { color: var(--c-gray); padding: .5rem 0 1rem; }

/* Breadcrumbs */
.bda-breadcrumbs { font-size:.8rem; color: var(--c-gray); margin-bottom: 1.5rem; }
.bda-breadcrumbs ol { list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; gap:.4rem; }
.bda-breadcrumbs li + li::before { content:'/'; margin-right:.4rem; color: var(--c-line); }

/* Pagination */
.pagination, .navigation.pagination { display:flex; justify-content:center; gap:.5rem; margin-top: 2rem; }
.page-numbers { padding: .5rem .9rem; border:1px solid var(--c-line); font-size:.9rem; }
.page-numbers.current { border-color: var(--c-gold); color: var(--c-gold-dark); }

/* Sidebar / widgets */
.widget-area { margin-top: 3rem; }
.widget { padding: 1.5rem; background: var(--c-muted); border-radius: var(--radius); margin-bottom: 1rem; }
.widget-title { margin-top:0; font-family: var(--font-display); font-size:1.1rem; }

/* Search */
.search-form { display:flex; gap:.5rem; max-width: 480px; margin: 1rem auto; }
.search-form .search-field { flex:1; padding: .75rem 1rem; border: 1px solid var(--c-line); border-radius: var(--radius); }

/* Comments */
.comments-area { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--c-line); }
.comment-list { list-style:none; padding:0; }
.comment { padding: 1rem 0; border-bottom: 1px solid var(--c-line); }

/* Map */
.section-map iframe { display:block; filter: grayscale(20%); }

/* Footer */
.site-footer { background: var(--c-dark); color: rgba(255,255,255,.75); padding-top: 4rem; margin-top: 0; }
.footer-grid { display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 3rem; }
.footer-col h4 { color:#fff; font-size:1rem; text-transform:uppercase; letter-spacing:.15em; font-family: var(--font-body); font-weight:500; margin-bottom:1rem; }
.footer-col a { color: rgba(255,255,255,.75); }
.footer-col a:hover { color: var(--c-gold); }
.footer-menu { list-style:none; margin:0; padding:0; }
.footer-menu li { padding: .3rem 0; }
.footer-col address { font-style: normal; line-height:1.8; font-size:.95rem; }
.bda-social { display:flex; gap: .75rem; list-style:none; padding:0; margin: 1rem 0 0; }
.bda-social a { display:inline-flex; align-items:center; justify-content:center; width:36px; height:36px; border:1px solid rgba(255,255,255,.2); border-radius:50%; color:#fff; }
.bda-social a:hover { border-color: var(--c-gold); color: var(--c-gold); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 1.5rem 0; }
.footer-bottom-inner { display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; font-size:.85rem; }
.footer-bottom .legal { list-style:none; display:flex; gap:1.25rem; margin:0; padding:0; }

@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

/* Back to top */
#back-to-top { position: fixed; right: 1.25rem; bottom: 1.25rem; width: 44px; height: 44px; border-radius: 50%; border:0; background: var(--c-fg); color:#fff; font-size:1.2rem; cursor:pointer; opacity:0; pointer-events:none; transition: opacity .3s ease, transform .3s ease; z-index: 90; }
#back-to-top.is-visible { opacity: 1; pointer-events: auto; }
#back-to-top:hover { background: var(--c-gold); }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* Utility */
.entry-thumb { margin: 0 0 2rem; }
.post-navigation { display:flex; justify-content:space-between; gap:1rem; margin: 3rem 0; }
.tags { margin-top: 1rem; font-size:.85rem; color: var(--c-gray); }

/* Print */
@media print { .site-header, .site-footer, #back-to-top { display:none; } }