/* Keystone Marble main styles extracted from provided HTML */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,400;1,500&family=Outfit:wght@300;400;500;600&display=swap');

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Outfit', sans-serif; color: #141414; background: #fff; margin:0; }
h1, h2, h3, h4 { font-family: 'Cormorant Garamond', serif; }
.gradient-gold { background: linear-gradient(135deg, #CC8F33, #E0BC85); }
.text-gold { color: #CC8F33; }
.bg-dark { background-color: #0f0f0f; }
.section-pad { padding: 80px 24px; }
@media (min-width: 768px) { .section-pad { padding: 96px 48px; } }
@media (min-width: 1280px) { .section-pad { padding: 112px 96px; } }

.km-navbar a { text-decoration:none; }

.svc-card { position: relative; overflow: hidden; border-radius: 4px; }
.svc-card img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.7s; }
.svc-card:hover img { transform: scale(1.06); }

/* responsive grid tweaks used on the front page */
@media (min-width: 900px) {
  .section-pad { padding-left: 48px; padding-right: 48px; }
}

/* Appended styles from provided index.html to improve visual parity */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Outfit', sans-serif; color: #141414; background: #fff; }
h1, h2, h3, h4 { font-family: 'Cormorant Garamond', serif; }
.gradient-gold { background: linear-gradient(135deg, #CC8F33, #E0BC85); }
.text-gold { color: #CC8F33; }
.bg-dark { background-color: #0f0f0f; }
.section-pad { padding: 80px 24px; }
@media (min-width: 768px)  { .section-pad { padding: 96px 48px; } }
@media (min-width: 1280px) { .section-pad { padding: 112px 96px; } }
/* Tabs */
.tab-content { display: none; }
.tab-content.active { display: block; }
.tab-btn { cursor: pointer; padding: 9px 20px; border-radius: 4px; font-family: 'Outfit', sans-serif; font-size: 14px; font-weight: 500; color: rgba(235,235,235,0.55); border: none; background: transparent; transition: all 0.2s; white-space: nowrap; }
.tab-btn.active-tab { background: #CC8F33; color: #fff; }
/* Stone swatches */
.swatch { position: relative; aspect-ratio: 1; overflow: hidden; border-radius: 4px; cursor: pointer; }
.swatch img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; display: block; }
.swatch:hover img { transform: scale(1.1); }
.swatch-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.78) 0%, rgba(0,0,0,0.05) 55%); }
.swatch-label { position: absolute; bottom: 0; left: 0; right: 0; padding: 8px 6px 6px; color: #fff; font-size: 10.5px; font-weight: 500; text-align: center; line-height: 1.25; font-family: 'Outfit', sans-serif; }
/* Service cards */
.svc-card { position: relative; overflow: hidden; border-radius: 4px; }
.svc-card img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.7s; }
.svc-card:hover img { transform: scale(1.06); }
.svc-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.85) 25%, rgba(0,0,0,0.12) 100%); }
.svc-text { position: absolute; bottom: 0; left: 0; right: 0; padding: 22px; }
.svc-desc { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; font-size: 13px; color: rgba(255,255,255,0.7); line-height: 1.6; }
.svc-card:hover .svc-desc { max-height: 80px; }
/* Gallery */
.gal-item { overflow: hidden; border-radius: 4px; }
.gal-item img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.7s; }
.gal-item:hover img { transform: scale(1.07); }
/* Form */
.form-step { display: none; }
.form-step.active { display: block; }
.sel-btn { padding: 13px 12px; border: 1px solid #e5e7eb; border-radius: 4px; font-size: 13px; font-family: 'Outfit', sans-serif; cursor: pointer; transition: all 0.2s; background: #fff; text-align: center; width: 100%; }
.sel-btn:hover, .sel-btn.selected { border-color: #CC8F33; background: rgba(204,143,51,0.07); color: #141414; }
.step-bar { height: 3px; border-radius: 999px; flex: 1; background: #e5e7eb; transition: background 0.3s; }
.step-bar.done { background: linear-gradient(135deg, #CC8F33, #E0BC85); }
input[type=text], input[type=email], input[type=tel], textarea { width:100%; padding:10px; border:1px solid #e5e7eb; border-radius:6px; }
input:focus, textarea:focus { border-color: #CC8F33; }
/* Responsive nav */
#desktop-links, #desktop-phone, #desktop-cta { display: none; }
@media (min-width: 900px) {
  #desktop-links { display:flex; }
  #desktop-phone { display:flex; }
  #desktop-cta { display:inline-block; }
  #hamburger { display:none; }
}
#mobile-menu { display: none; }
#mobile-menu.open { display: block; }
/* Collection info grid */
.col-inner { display: block; }
@media (min-width: 900px) { .col-inner { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; align-items: start; } }
/* Swatch grid */
.swatch-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-top: 20px; }
@media (min-width: 480px) { .swatch-grid { grid-template-columns: repeat(3, 1fr); gap: 9px; } }
@media (min-width: 900px) { .swatch-grid { grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 0; } }
/* Services masonry */
.svc-grid { display: grid; gap: 10px; }
@media (min-width: 700px) { .svc-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .svc-grid { grid-template-columns: 1fr 1fr 1fr; } }
/* Gallery grid */
.gal-grid { display: grid; gap: 10px; }
@media (min-width: 700px) { .gal-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .gal-grid { grid-template-columns: 1fr 1fr 1fr 1fr; } }
/* Process grid */
.proc-grid { display: grid; grid-template-columns: 1fr; gap: 28px; }
@media (min-width: 600px) { .proc-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .proc-grid { grid-template-columns: repeat(3, 1fr); } }
/* Why Us grid */
.why-grid { display: grid; gap: 14px; }
@media (min-width: 700px) { .why-grid { grid-template-columns: 1fr 1fr; } }
/* Stats grid */
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
@media (min-width: 700px) { .stats-grid { grid-template-columns: repeat(4, 1fr); gap: 40px; } }
/* Footer grid */
.footer-grid { display: grid; gap: 32px; }
@media (min-width: 600px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; } }
/* Whyus card icon */
.why-icon { flex-shrink: 0; width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 20px; }
/* Collection hero image */
.col-hero { position: relative; overflow: hidden; border-radius: 4px; }
.col-hero img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; transition: transform 0.7s; }
.col-hero:hover img { transform: scale(1.04); }
.col-hero-badge { position: absolute; bottom: 10px; left: 10px; font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase; color: #CC8F33; background: rgba(0,0,0,0.58); padding: 4px 9px; border-radius: 2px; font-family: 'Outfit', sans-serif; }
/* Nav link */
a.nav-link { font-family: 'Outfit', sans-serif; font-size: 14px; font-weight: 500; color: #6b7280; text-decoration: none; transition: color 0.2s; }
a.nav-link:hover { color: #141414; }
/* Svc card height desktop */
@media (min-width: 700px) and (max-width: 999px) { .svc-tall, .svc-tall-2 { height: 240px; } }
.svc-tall, .svc-tall-2 { height: 220px; }
/* Gal heights */
.gal-tall { height: 220px; }
@media (min-width: 700px) { .gal-tall { height: 250px; } }
@media (min-width: 1000px) { .gal-tall { height: 260px; } }
.gal-tall-2x { height: 220px; }
@media (min-width: 1000px) { .gal-tall-2x { grid-row: span 2; height: 530px; } }
/* Why us feature card */
.why-card { display: flex; gap: 18px; padding: 22px; border: 1px solid rgba(255,255,255,0.08); border-radius: 4px; }