/* LDL Gas: shared styles (plain CSS so it works alongside the Tailwind Play CDN) */
:root { --brand: #3CABE6; --navy: #050657; --navy-950: #020225; --ink: #0B0B12; }

.font-display, .display-2xl, .display-xl, .display-lg { font-family: "Bricolage Grotesque", system-ui, sans-serif; }
.display-2xl { font-size: clamp(2.6rem, 6.4vw, 5.4rem); line-height: .98; font-weight: 800; letter-spacing: -0.035em; }
.display-xl  { font-size: clamp(2.3rem, 5vw, 4.25rem); line-height: 1.02; font-weight: 800; letter-spacing: -0.03em; }
.display-lg  { font-size: clamp(1.9rem, 3.4vw, 3rem); line-height: 1.08; font-weight: 800; letter-spacing: -0.025em; }
.eyebrow { font-size: .75rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; }

/* nav */
.nav-link { position: relative; padding: .55rem .9rem; border-radius: 999px; font-size: .925rem; font-weight: 600; color: #334155; transition: color .2s, background-color .2s; }
.nav-link:hover { color: var(--navy); background: #EEF8FE; }
.nav-link.is-active { color: var(--navy); }
.nav-link.is-active::after { content: ""; position: absolute; left: .9rem; right: .9rem; bottom: .25rem; height: 2px; border-radius: 2px; background: var(--brand); }
.site-header.is-scrolled { box-shadow: 0 8px 30px -12px rgba(5, 6, 87, .18); }

/* buttons */
.btn-primary, .btn-dark, .btn-outline, .btn-ghost-light, .btn-ghost-dark {
  display: inline-flex; align-items: center; gap: .55rem; border-radius: 999px; padding: .75rem 1.4rem;
  font-weight: 700; font-size: .95rem; transition: transform .2s ease, box-shadow .2s ease, background-color .2s, color .2s; }
.btn-primary { background: var(--brand); color: var(--navy-950); box-shadow: 0 10px 24px -10px rgba(60, 171, 230, .8); }
.btn-primary:hover { background: #5EC0F0; transform: translateY(-2px); box-shadow: 0 16px 30px -12px rgba(60, 171, 230, .9); }
.btn-primary:disabled { opacity: .6; cursor: wait; transform: none; }
.btn-dark { background: var(--navy); color: #fff; }
.btn-dark:hover { background: #0A0C6E; transform: translateY(-2px); }
.btn-outline { border: 2px solid var(--navy); color: var(--navy); }
.btn-ghost-light { border: 1.5px solid rgba(255,255,255,.35); color: #fff; backdrop-filter: blur(6px); background: rgba(255,255,255,.06); }
.btn-ghost-light:hover { background: rgba(255,255,255,.14); transform: translateY(-2px); }
.btn-ghost-dark { border: 1.5px solid rgba(5,6,87,.35); color: var(--navy-950); }
.btn-ghost-dark:hover { background: rgba(255,255,255,.3); transform: translateY(-2px); }
.link-arrow { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; color: var(--navy); }
.link-arrow svg { transition: transform .2s; color: var(--brand); }
.link-arrow:hover svg { transform: translateX(4px); }

/* hero entrance */
.hero-in { opacity: 0; transform: translateY(18px); animation: heroIn .8s cubic-bezier(.2,.7,.2,1) forwards; animation-delay: var(--d, 0ms); }
@keyframes heroIn { to { opacity: 1; transform: none; } }
.hero-img { animation: heroZoom 14s ease-out forwards; transform-origin: 70% 50%; }
@keyframes heroZoom { from { transform: scale(1.08); } to { transform: scale(1); } }

/* trust stats */
.stat { padding: 1.5rem 1.75rem; border-top: 1px solid #e2e8f0; }
@media (min-width: 768px) { .stat { border-top: 0; border-left: 1px solid #e2e8f0; } }
.stat-num { font-family: "Bricolage Grotesque", sans-serif; font-weight: 800; font-size: 2rem; letter-spacing: -.03em; color: var(--navy); line-height: 1; }
.stat-label { margin-top: .5rem; font-size: .85rem; line-height: 1.35; color: #64748b; }

.tick { display: flex; align-items: flex-start; gap: .6rem; font-weight: 600; color: #1e293b; }
.tick svg { margin-top: .15rem; flex-shrink: 0; }

/* feature cards */
.feature-card { position: relative; isolation: isolate; display: flex; min-height: 30rem; overflow: hidden; border-radius: 1.75rem; background: var(--navy-950); }
.feature-img { position: absolute; inset: 0; z-index: -2; height: 100%; width: 100%; object-fit: cover; transition: transform .9s cubic-bezier(.2,.7,.2,1); }
.feature-card:hover .feature-img { transform: scale(1.06); }
.feature-shade { position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(2,2,37,.05) 0%, rgba(2,2,37,.55) 45%, rgba(2,2,37,.95) 100%); }
.chip { display: inline-flex; align-items: center; gap: .4rem; border-radius: 999px; background: rgba(60,171,230,.18); border: 1px solid rgba(60,171,230,.4); padding: .35rem .8rem; font-size: .78rem; font-weight: 700; color: #BDE6FA; backdrop-filter: blur(6px); }

.svc-row { display: flex; align-items: center; gap: .85rem; padding: .95rem 0; border-bottom: 1px solid #e2e8f0; font-weight: 600; color: #1e293b; transition: color .2s; }
.svc-row:hover { color: #16719F; }

.svc-card { border-radius: 1.5rem; background: #fff; padding: 1.75rem; border: 1px solid #e2e8f0; transition: transform .25s, box-shadow .25s, border-color .25s; }
.svc-card:hover { transform: translateY(-4px); border-color: #7AD5F9; box-shadow: 0 24px 40px -24px rgba(5,6,87,.35); }
.svc-icon { display: inline-flex; height: 3rem; width: 3rem; align-items: center; justify-content: center; border-radius: 1rem; background: #EEF8FE; color: #16719F; }

/* meters */
.meter { height: .85rem; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; }
.meter span { display: block; height: 100%; width: 0; border-radius: inherit; transition: width 1.4s cubic-bezier(.2,.7,.2,1); }
.is-visible .meter span, .meter.is-visible span { width: var(--w); }

/* steps */
.step { background: #fff; padding: 2.25rem; }
.step p { margin-top: .75rem; line-height: 1.75; }
.step-num { font-family: "Bricolage Grotesque", sans-serif; font-weight: 800; font-size: 3.5rem; line-height: 1; color: #D5F4FF; -webkit-text-stroke: 1.5px var(--brand); }
.step-title { margin-top: 1.25rem; font-family: "Bricolage Grotesque", sans-serif; font-weight: 800; font-size: 1.4rem; letter-spacing: -.02em; color: var(--navy); }
.step-dot { display: inline-flex; height: 2rem; width: 2rem; flex-shrink: 0; align-items: center; justify-content: center; border-radius: 999px; background: var(--navy); color: #fff; font-weight: 700; font-size: .85rem; }

.plumb-row { display: flex; gap: 1.5rem; align-items: baseline; padding: 1.35rem 0; font-size: 1.1rem; line-height: 1.6; color: #e2e8f0; }
.plumb-num { font-family: "Bricolage Grotesque", sans-serif; font-weight: 800; color: var(--brand); min-width: 2rem; }

.about-fact { display: flex; align-items: center; gap: 1rem; border-radius: 1.25rem; background: #f8fafc; padding: 1.25rem 1.5rem; border: 1px solid #e2e8f0; }

/* FAQ accordion */
.faq { border-radius: 1.25rem; border: 1px solid #e2e8f0; background: #fff; transition: border-color .2s, box-shadow .2s; }
.faq[open] { border-color: #7AD5F9; box-shadow: 0 18px 36px -24px rgba(5,6,87,.35); }
.faq summary { display: flex; cursor: pointer; list-style: none; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.25rem 1.5rem; font-weight: 700; color: var(--navy); font-size: 1.05rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq-icon { display: inline-flex; height: 2.25rem; width: 2.25rem; flex-shrink: 0; align-items: center; justify-content: center; border-radius: 999px; background: #EEF8FE; color: #16719F; transition: transform .3s, background-color .2s; }
.faq[open] .faq-icon { transform: rotate(45deg); background: var(--brand); color: var(--navy-950); }
.faq-body { padding: 0 1.5rem 1.4rem; line-height: 1.75; }

/* forms */
.field-label { display: block; margin-bottom: .45rem; font-size: .875rem; font-weight: 700; color: #1e293b; }
.field { display: block; width: 100%; border-radius: .9rem; border: 1.5px solid #e2e8f0; background: #f8fafc; padding: .85rem 1rem; font-size: 1rem; color: #0f172a; transition: border-color .2s, box-shadow .2s, background-color .2s; }
.field:focus { outline: none; border-color: var(--brand); background: #fff; box-shadow: 0 0 0 4px rgba(60,171,230,.18); }
.field.is-invalid { border-color: #e11d48; }
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.form-status { display: flex; gap: .9rem; border-radius: 1rem; padding: 1.1rem 1.25rem; }
.form-status.hidden { display: none; }
.form-success { background: #EEF8FE; border: 1.5px solid var(--brand); color: var(--navy); }
.form-error { background: #fff1f2; border: 1.5px solid #fda4af; color: #9f1239; }
.grecaptcha-badge { visibility: hidden; }

/* mobile menu */
.mobile-menu.is-open { display: block; animation: fadeIn .2s ease-out; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.bg-navy-950\/98 { background-color: rgba(2,2,37,.98); }

/* scroll reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto !important; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal, .hero-in { opacity: 1 !important; transform: none !important; }
  .meter span { width: var(--w) !important; }
}

/* sample labels */
.sample-tag { display: inline-flex; align-items: center; gap: .35rem; border-radius: 999px; background: rgba(255,255,255,.92); color: #050657; padding: .3rem .7rem; font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; box-shadow: 0 4px 14px -6px rgba(0,0,0,.35); }

/* gallery bento */
.gallery-grid { grid-auto-rows: 9.5rem; grid-auto-flow: dense; }
@media (min-width: 640px) { .gallery-grid { grid-auto-rows: 12rem; } }
@media (min-width: 1024px) { .gallery-grid { grid-auto-rows: 14rem; } }
.gallery-grid > li { min-height: 0; }
.gallery-tile { position: relative; display: block; height: 100%; width: 100%; overflow: hidden; border-radius: 1.25rem; background: #e2e8f0; cursor: zoom-in; }
.gallery-tile:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; }
.gallery-shade { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(2,2,37,.55)); opacity: 0; transition: opacity .4s; }
.gallery-zoom { position: absolute; right: .9rem; bottom: .9rem; display: inline-flex; height: 2.5rem; width: 2.5rem; align-items: center; justify-content: center; border-radius: 999px; background: var(--brand); color: var(--navy-950); opacity: 0; transform: scale(.8); transition: opacity .3s, transform .3s; }
.gallery-tile:hover .gallery-shade, .gallery-tile:focus-visible .gallery-shade { opacity: 1; }
.gallery-tile:hover .gallery-zoom, .gallery-tile:focus-visible .gallery-zoom { opacity: 1; transform: none; }
@media (hover: none) { .gallery-zoom { opacity: .95; transform: none; } }

/* lightbox */
.lightbox { position: fixed; inset: 0; z-index: 80; display: flex; align-items: center; justify-content: center; padding: 4.5rem 1rem; background: rgba(2,2,37,.94); backdrop-filter: blur(6px); }
.lightbox.hidden { display: none; }
.lb-figure { margin: 0; display: flex; max-height: 100%; max-width: min(1200px, 100%); flex-direction: column; align-items: center; }
.lb-img { max-height: calc(100vh - 11rem); max-width: 100%; border-radius: 1rem; object-fit: contain; box-shadow: 0 30px 60px -20px rgba(0,0,0,.6); }
.lb-caption { margin-top: 1rem; text-align: center; font-size: .95rem; color: #cbd5e1; }
.lb-btn { position: absolute; display: inline-flex; height: 3rem; width: 3rem; align-items: center; justify-content: center; border-radius: 999px; border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.08); color: #fff; transition: background-color .2s; }
.lb-btn:hover { background: var(--brand); color: var(--navy-950); }
.lb-close { right: 1rem; top: 1rem; }
.lb-prev { left: 1rem; top: 50%; transform: translateY(-50%); }
.lb-next { right: 1rem; top: 50%; transform: translateY(-50%); }
@media (max-width: 639px) { .lb-prev, .lb-next { top: auto; bottom: 1rem; transform: none; } .lb-prev { left: calc(50% - 3.5rem); } .lb-next { right: calc(50% - 3.5rem); } }

/* reviews */
.review-card { position: relative; display: flex; min-width: 85%; flex-direction: column; scroll-snap-align: start; border-radius: 1.75rem; border: 1px solid rgba(255,255,255,.12); background: linear-gradient(160deg, rgba(255,255,255,.08), rgba(255,255,255,.02)); padding: 2rem; transition: transform .3s, border-color .3s; }
.review-card:hover { transform: translateY(-4px); border-color: rgba(60,171,230,.5); }
.review-card blockquote { flex: 1; }
.review-card .sample-tag { align-self: flex-start; }
@media (min-width: 640px) { .review-card { min-width: 60%; } }
@media (min-width: 1024px) { .review-card { min-width: 0; padding: 2.5rem; } }
.reviews-track { scrollbar-width: thin; scrollbar-color: rgba(60,171,230,.6) transparent; }
.tile-tag { position: absolute; left: .7rem; top: .7rem; padding: .2rem .55rem; font-size: .6rem; }