/* Diamond Seal Systems: mobile-first, dependency-free site styles. */
:root {
  --color-blue-700: #0b63ce;
  --color-blue-600: #1572e8;
  --color-blue-100: #eaf4ff;
  --color-navy-900: #071a2f;
  --color-navy-800: #0b1f3a;
  --color-slate-700: #334e68;
  --color-slate-600: #486581;
  --color-slate-300: #bcccdc;
  --color-slate-200: #d9e2ec;
  --color-slate-100: #f5f8fb;
  --color-white: #ffffff;
  --color-success: #0f766e;
  --shadow-soft: 0 18px 45px rgba(7, 26, 47, 0.11);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --container: 1120px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--color-navy-800); background: var(--color-white); font-family: var(--font-sans); line-height: 1.6; text-rendering: optimizeLegibility; overflow-wrap: break-word; }
body.nav-open { overflow: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: var(--color-blue-700); text-decoration-thickness: 0.08em; text-underline-offset: 0.18em; }
a:hover, a:focus-visible { color: var(--color-blue-600); }
a:focus-visible { outline: 3px solid var(--color-navy-900); outline-offset: 3px; box-shadow: 0 0 0 6px var(--color-white); }
p, ul, ol { margin: 0 0 1rem; }
ul, ol { padding-left: 1.2rem; }
h1, h2, h3, h4 { color: var(--color-navy-900); line-height: 1.12; margin: 0 0 0.75rem; letter-spacing: -0.03em; }
h1 { font-size: clamp(2.1rem, 6.5vw, 4.05rem); max-width: 940px; }
h2 { font-size: clamp(1.55rem, 4vw, 2.45rem); }
h3 { font-size: clamp(1.18rem, 3vw, 1.45rem); }
blockquote { margin: 2rem 0 0; padding: 1.25rem; border-left: 4px solid var(--color-blue-700); background: var(--color-blue-100); border-radius: var(--radius-sm); font-weight: 800; }
.skip-link { position: absolute; left: 1rem; top: -4rem; z-index: 100; padding: 0.75rem 1rem; color: var(--color-white); background: var(--color-navy-900); border-radius: var(--radius-sm); }
.skip-link:focus { top: 1rem; }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.96); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(217,226,236,0.9); }
.header-inner, .container { width: min(var(--container), calc(100% - 32px)); margin-inline: auto; }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 74px; gap: 1rem; }
.logo-link { display: inline-flex; align-items: center; width: min(70vw, 330px); min-width: 0; }
.logo-link img { width: 100%; height: auto; }
.nav-toggle { display: inline-grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--color-slate-200); border-radius: 999px; background: var(--color-white); color: var(--color-navy-900); cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 20px; height: 2px; background: currentColor; border-radius: 999px; transition: transform 180ms ease, opacity 180ms ease; content: ""; }
.nav-toggle span::before { transform: translateY(-6px); }
.nav-toggle span::after { transform: translateY(4px); }
.nav-toggle[aria-expanded="true"] span { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::before { opacity: 0; }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-2px) rotate(-90deg); }
.primary-nav { position: fixed; inset: 74px 0 0; display: none; height: calc(100vh - 74px); height: calc(100dvh - 74px); min-height: 0; padding: 1.25rem 1rem 2rem; overflow-y: auto; overscroll-behavior: contain; background: var(--color-white); border-bottom: 1px solid var(--color-slate-200); }
.primary-nav.is-open { display: block; }
.no-js .nav-toggle { display: none; }
.no-js .primary-nav { position: static; display: block; height: auto; min-height: auto; padding: 0.5rem 0; overflow: visible; overscroll-behavior: auto; border: 0; }
.no-js .header-inner { align-items: flex-start; flex-direction: column; padding-block: 0.75rem; }
.primary-nav ul { display: grid; gap: 0.25rem; list-style: none; margin: 0; padding: 0; }
.primary-nav a { display: block; padding: 0.85rem 1rem; color: var(--color-navy-800); font-weight: 800; text-decoration: none; border-radius: 999px; }
.primary-nav a:hover, .primary-nav a:focus-visible, .primary-nav a[aria-current="page"] { background: var(--color-blue-100); color: var(--color-blue-700); }
.nav-shop a { color: var(--color-white); background: var(--color-blue-700); }
.nav-shop a:hover, .nav-shop a:focus-visible { color: var(--color-white); background: var(--color-blue-600); }
.hero { position: relative; display: grid; min-height: clamp(590px, 74vh, 740px); overflow: hidden; align-items: center; padding: clamp(3.5rem, 8vw, 6.5rem) 0; color: var(--color-white); background: var(--color-navy-900); }
.hero::after { position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(7,26,47,0.68) 0%, rgba(7,26,47,0.84) 100%); content: ""; }
.hero-background { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }
.hero-background img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-content { position: relative; z-index: 2; }
.hero-copy { max-width: 800px; }
.hero h1, .hero .lede, .hero .eyebrow { color: var(--color-white); }
.hero .lede { color: rgba(255,255,255,0.92); }
.hero .btn-primary { color: var(--color-blue-700); background: var(--color-white); box-shadow: 0 12px 28px rgba(0,0,0,0.24); }
.hero .btn-primary:hover, .hero .btn-primary:focus-visible { color: var(--color-blue-700); background: var(--color-blue-100); }
.hero .btn-secondary, .hero .btn-ghost { color: var(--color-white); background: rgba(7,26,47,0.52); border-color: rgba(255,255,255,0.5); backdrop-filter: blur(8px); }
.hero .btn-secondary:hover, .hero .btn-secondary:focus-visible, .hero .btn-ghost:hover, .hero .btn-ghost:focus-visible { color: var(--color-white); background: rgba(11,99,206,0.86); }
.eyebrow { display: inline-flex; align-items: center; gap: 0.5rem; margin: 0 0 1rem; color: var(--color-blue-700); font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.78rem; }
.lede { max-width: 720px; color: var(--color-slate-700); font-size: clamp(1.05rem, 2.2vw, 1.28rem); }
.hero-actions, .section-actions, .card-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 0.85rem; align-items: center; margin-top: 1.5rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0.78rem 1.15rem; border: 1px solid transparent; border-radius: 999px; font-weight: 900; line-height: 1; text-decoration: none; transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease, color 160ms ease; cursor: pointer; }
.btn:hover, .btn:focus-visible { transform: translateY(-1px); }
.btn-primary { color: var(--color-white); background: var(--color-blue-700); box-shadow: 0 12px 24px rgba(11,99,206,0.24); }
.btn-primary:hover, .btn-primary:focus-visible { color: var(--color-white); background: var(--color-blue-600); }
.btn-secondary { color: var(--color-blue-700); background: var(--color-white); border-color: var(--color-slate-200); }
.btn-secondary:hover, .btn-secondary:focus-visible { background: var(--color-blue-100); }
.btn-ghost { color: var(--color-navy-800); background: transparent; border-color: var(--color-slate-200); }
.section { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.section-muted { background: var(--color-slate-100); }
.section-blue { color: var(--color-white); background: linear-gradient(135deg, var(--color-navy-900), var(--color-blue-700)); }
.section-blue h2, .section-blue h3, .section-blue p, .section-blue .eyebrow { color: var(--color-white); }
.section-blue .btn-secondary { border-color: rgba(255,255,255,0.35); }
.section-heading { max-width: 760px; margin-bottom: 2rem; }
.section-heading p { color: var(--color-slate-700); font-size: 1.05rem; }
.grid { display: grid; gap: 1rem; }
.card, .product-card, .resource-card { display: flex; flex-direction: column; min-height: 100%; padding: 1.25rem; background: var(--color-white); border: 1px solid var(--color-slate-200); border-radius: var(--radius-md); box-shadow: 0 10px 30px rgba(7,26,47,0.05); }
.card > h2 { font-size: clamp(1.35rem, 2.5vw, 1.65rem); letter-spacing: -0.02em; }
.card p, .product-card p { color: var(--color-slate-700); }
.card-link { margin-top: auto; font-weight: 900; text-decoration: none; }
.icon-badge { display: inline-grid; place-items: center; width: 44px; height: 44px; margin-bottom: 1rem; color: var(--color-blue-700); background: var(--color-blue-100); border-radius: 14px; font-weight: 900; }
.split { display: grid; gap: 2rem; align-items: center; }
.align-start { align-items: start; }
.content-narrow { max-width: 860px; }
.content-narrow > h2:not(:first-child) { margin-top: clamp(2.25rem, 5vw, 3.25rem); }
.content-narrow p { color: var(--color-slate-700); font-size: 1.05rem; }
.check-list { display: grid; gap: 0.7rem; padding: 0; margin: 1.25rem 0 0; list-style: none; }
.check-list.compact { margin-top: 0; }
.check-list li { position: relative; padding-left: 1.8rem; color: var(--color-slate-700); }
.check-list li::before { position: absolute; left: 0; top: 0.1rem; color: var(--color-success); font-weight: 900; content: "✓"; }
.page-hero { padding: clamp(2.75rem, 6vw, 5rem) 0; background: radial-gradient(circle at top right, rgba(21,114,232,0.15), transparent 28rem), var(--color-slate-100); }
.banner-section { padding: clamp(1.5rem, 4vw, 2.75rem) 0 0; }
.wide-banner { width: 100%; height: auto; border: 1px solid var(--color-slate-200); border-radius: var(--radius-md); box-shadow: var(--shadow-soft); }
.breadcrumbs { margin-bottom: 1rem; color: var(--color-slate-600); font-size: 0.92rem; }
.breadcrumbs a { color: var(--color-slate-600); text-decoration: none; }
.product-list { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.resource-grid { display: grid; gap: 1rem; }
.resource-card { color: var(--color-navy-900); text-decoration: none; }
.resource-card span { color: var(--color-blue-700); font-size: 0.78rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
.resource-card strong { display: block; margin-top: 0.25rem; }
.product-image { width: 100%; height: 260px; margin-bottom: 1rem; padding: 0.75rem; object-fit: contain; background: var(--color-slate-100); border-radius: var(--radius-sm); }
.feature-image, .project-image { width: 100%; height: auto; border: 1px solid var(--color-slate-200); border-radius: var(--radius-md); box-shadow: var(--shadow-soft); }
.project-image { max-height: 680px; object-fit: cover; }
.media-figure { margin: 0; }
.media-figure figcaption { margin-top: 0.65rem; color: var(--color-slate-600); font-size: 0.9rem; }
.card .card-image { width: calc(100% + 2.5rem); max-width: none; aspect-ratio: 4 / 3; margin: -1.25rem -1.25rem 1.1rem; object-fit: cover; border-radius: var(--radius-md) var(--radius-md) 0 0; }
.card .card-image.card-image-contain { padding: 1rem; object-fit: contain; background: #f4ad00; }
.archive-grid { align-items: start; }
.archive-grid .card { min-height: auto; }
.archive-grid .card-image { aspect-ratio: auto; height: clamp(180px, 20vw, 220px); }
.residential-gallery { display: grid; gap: 1rem; }
.residential-gallery .feature-image { aspect-ratio: 4 / 3; height: 100%; object-fit: cover; }
.contact-email-card { justify-content: center; min-height: 100%; }
.contact-email-address { margin-top: 1rem; color: var(--color-slate-600); }
.btn:focus-visible, .nav-toggle:focus-visible { outline: 3px solid var(--color-navy-900); outline-offset: 3px; box-shadow: 0 0 0 6px var(--color-white); }
.footer { padding: 3rem 0 1.25rem; color: rgba(255,255,255,0.86); background: var(--color-navy-900); }
.footer h2 { font-size: 1.5rem; letter-spacing: -0.02em; }
.footer h2, .footer h3 { color: var(--color-white); }
.footer a { color: rgba(255,255,255,0.9); text-decoration: none; }
.footer a:hover, .footer a:focus-visible { color: var(--color-white); text-decoration: underline; }
.footer-grid { display: grid; gap: 1.75rem; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.45rem; }
.footer-contact { margin-top: 1rem; }
.footer-bottom { display: flex; flex-direction: column; gap: 0.35rem; padding-top: 1.5rem; margin-top: 2rem; border-top: 1px solid rgba(255,255,255,0.15); font-size: 0.9rem; }
.footer-bottom p { margin: 0; }
@media (min-width: 680px) { .grid-2, .residential-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); } .resource-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .footer-bottom { flex-direction: row; justify-content: space-between; } }
@media (min-width: 680px) { .hero::after { background: linear-gradient(90deg, rgba(7,26,47,0.9) 0%, rgba(7,26,47,0.72) 52%, rgba(7,26,47,0.28) 100%); } }
@media (min-width: 860px) { .split { grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr); } .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .footer-grid { grid-template-columns: 1.35fr repeat(3, 1fr); } }
@media (min-width: 1040px) { .logo-link { width: 300px; } .nav-toggle { display: none; } .primary-nav, .no-js .primary-nav { position: static; display: block; height: auto; min-height: auto; padding: 0; overflow: visible; overscroll-behavior: auto; border: 0; background: transparent; } .primary-nav ul { display: flex; align-items: center; gap: 0.12rem; } .primary-nav a { padding: 0.62rem 0.72rem; font-size: 0.9rem; } .no-js .header-inner { align-items: center; flex-direction: row; padding-block: 0; } .resource-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; } }