/* Premium enhancement layer: optional theme, tools, calculator and interactive states */
:root { color-scheme: light; }
html[data-theme="dark"] { color-scheme: dark; }
html[data-theme="dark"] body { background:#071b2d; color:#e9f5f8; }
html[data-theme="dark"] .soft-bg, html[data-theme="dark"] .contact { background:#0b2438; }
html[data-theme="dark"] .service-card, html[data-theme="dark"] .testimonial-grid figure, html[data-theme="dark"] .contact-form, html[data-theme="dark"] .quote-card { background:#0e3048; color:#e9f5f8; }
html[data-theme="dark"] .lead, html[data-theme="dark"] .section-heading>p, html[data-theme="dark"] .service-card p, html[data-theme="dark"] .testimonial-grid figcaption span { color:#b8d1db; }
html[data-theme="dark"] .accordion button, html[data-theme="dark"] .contact-form input, html[data-theme="dark"] .contact-form textarea { color:#e9f5f8; }
html[data-theme="dark"] .intro, html[data-theme="dark"] .section:not(.benefits):not(.contact):not(.soft-bg):not(.quote-section) { background:#071b2d; }
html[data-theme="dark"] .site-header.menu-open nav { background:#0e3048; color:#e9f5f8; }
.nav-tools { display:flex; align-items:center; gap:8px; }
.theme-toggle { width:36px; height:36px; padding:0; display:grid; place-items:center; color:#fff; background:transparent; border:1px solid rgba(255,255,255,.48); border-radius:50%; cursor:pointer; transition:transform .25s, background .25s; }
.theme-toggle:hover { transform:rotate(22deg) scale(1.07); background:rgba(255,255,255,.14); }
.stats-grid { display:grid; grid-template-columns:repeat(4, 1fr); gap:1px; margin-top:74px; background:var(--line); border:1px solid var(--line); }
.stats-grid article { min-height:132px; padding:25px; background:#fff; transition:transform .3s, box-shadow .3s; }
.stats-grid article:hover { transform:translateY(-5px); box-shadow:0 12px 30px rgba(6,42,76,.08); position:relative; z-index:1; }
.stats-grid strong { display:block; color:var(--blue); font:42px/1 var(--serif); letter-spacing:-1px; }
.stats-grid span { display:block; margin-top:9px; color:var(--muted); font-size:12px; }
html[data-theme="dark"] .stats-grid { background:#22475d; border-color:#22475d; }
html[data-theme="dark"] .stats-grid article { background:#0e3048; }
.service-card .service-icon { display:grid; place-items:center; width:42px; height:42px; border-radius:50%; background:#e5f5f4; color:var(--blue); font-size:22px; transition:transform .35s, background .35s; }
.service-card small { position:absolute; right:22px; top:25px; color:var(--aqua); font-size:11px; font-weight:bold; }
.service-card { position:relative; }
.service-card:hover .service-icon { transform:rotate(-10deg) scale(1.1); background:var(--aqua); color:var(--navy); }
.gallery-filters { display:flex; gap:8px; margin:-17px 0 25px; }
.gallery-filters button { border:1px solid var(--line); background:#fff; color:var(--muted); padding:8px 14px; border-radius:20px; cursor:pointer; font-size:12px; transition:.25s; }
.gallery-filters button:hover, .gallery-filters button.active { color:#fff; background:var(--navy); border-color:var(--navy); }
.gallery-item { transition:opacity .3s, transform .3s, filter .3s; }
.gallery-item.is-hidden { display:none; }
.quote-section { background:linear-gradient(115deg,#eaf7f7 0%,#fff 56%,#e6f1f7); }
.quote-layout { display:grid; grid-template-columns:1fr .85fr; gap:12%; align-items:center; }
.quote-section h2 { font-size:clamp(39px,4.5vw,61px); margin:0 0 25px; }
.quote-card { padding:32px; background:#fff; box-shadow:0 20px 50px rgba(6,42,76,.13); border-top:3px solid var(--aqua); }
.quote-card label { display:block; color:var(--ink); font-size:12px; font-weight:bold; margin-bottom:24px; }
.quote-card select, .quote-card input[type="range"] { display:block; width:100%; margin-top:9px; }
.quote-card select { padding:12px; border:1px solid var(--line); color:var(--ink); background:#fff; }
.pieces-value { float:right; color:var(--blue); font-size:16px; }
.quote-result { padding:19px 0; margin:2px 0 20px; border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.quote-result span, .quote-result small { display:block; color:var(--muted); font-size:11px; }
.quote-result strong { display:block; color:var(--navy); font:31px var(--serif); margin:4px 0; }
.quote-card .button { width:100%; }
html[data-theme="dark"] .quote-section { background:#082036; }
html[data-theme="dark"] .quote-card label, html[data-theme="dark"] .quote-result strong { color:#e9f5f8; }
html[data-theme="dark"] .quote-card select { background:#133850; color:#e9f5f8; border-color:#31556a; }
@media (max-width:800px) { .stats-grid { grid-template-columns:repeat(2,1fr); margin-top:42px; } .quote-layout { grid-template-columns:1fr; gap:36px; } }
@media (max-width:430px) { .stats-grid strong { font-size:34px; } .stats-grid article { min-height:112px; padding:20px 15px; } .theme-toggle { width:34px; height:34px; } }
@media (prefers-reduced-motion:reduce) { *, *::before, *::after { scroll-behavior:auto !important; transition-duration:.01ms !important; animation-duration:.01ms !important; } }