/* Layout concept: an engineering control room rendered with consumer-product polish. Large type, glass panels and one live 3D hero. */
:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --glass: rgba(255, 255, 255, .72);
  --fg: #111827;
  --muted: #4b5563;
  --line: #e2e7ef;
  --primary: #0066ff;
  --primary-2: #0047d6;
  --link: #0058dc;
  --shadow: 0 18px 50px rgba(17, 24, 39, .09);
  --ink: #0b1120;
  --on-ink: #ffffff;
  --on-ink-muted: #c3cede;
  --font-display: "Sora", "Segoe UI", Arial, sans-serif;
  --font-body: "Manrope", "Segoe UI", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120; --surface: #141c2e; --glass: rgba(20, 28, 46, .72); --fg: #f3f6fb; --muted: #b2bdcc;
    --line: #2a3448; --link: #79adff; --shadow: 0 18px 50px rgba(0, 0, 0, .4); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1120; --surface: #141c2e; --glass: rgba(20, 28, 46, .72); --fg: #f3f6fb; --muted: #b2bdcc;
  --line: #2a3448; --link: #79adff; --shadow: 0 18px 50px rgba(0, 0, 0, .4); color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 400 1.0625rem/1.65 var(--font-body); }
a { color: var(--link); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { margin: 0; font-family: var(--font-display); letter-spacing: -.025em; text-wrap: balance; }
h1 { font-size: clamp(2.6rem, 6.4vw, 5.1rem); line-height: 1.04; font-weight: 700; }
h2 { font-size: clamp(2rem, 4.2vw, 3.3rem); line-height: 1.1; font-weight: 700; }
h3 { font-size: 1.2rem; line-height: 1.25; font-weight: 600; }
p { margin: 0; max-width: 62ch; }
ul { margin: 0; padding-left: 1.15rem; display: grid; gap: .4rem; }
svg.icon { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; z-index: 100; background: var(--surface); padding: .5rem 1rem; }
.wrap { width: 100%; max-width: 1240px; margin-inline: auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
.stack { display: grid; gap: 1.1rem; min-width: 0; align-content: start; }
.section { padding-block: clamp(4rem, 9vw, 7.5rem); }
.section.tight { padding-top: 0; }
.head { display: grid; gap: .8rem; margin-bottom: 2.75rem; max-width: 760px; }
.eyebrow { font-size: .82rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--link); }
.lede { font-size: clamp(1.1rem, 1.7vw, 1.3rem); color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: .9rem; }

#progress { position: fixed; inset: 0 auto auto 0; z-index: 60; height: 3px; width: 100%; transform: scaleX(0); transform-origin: left; background: linear-gradient(90deg, var(--primary), #38a3ff); }

.topbar { background: linear-gradient(90deg, #0b1120, #102454 55%, #0b1120); color: var(--on-ink-muted); border-bottom: 1px solid rgba(121, 173, 255, .18); }
.topbar .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .3rem 1.5rem; padding-block: .5rem; }
.topbar svg.icon { width: 17px; height: 17px; flex: none; color: #79adff; stroke-width: 2; }
.top-tag { display: inline-flex; align-items: center; gap: .45rem; font-size: .88rem; font-weight: 500; letter-spacing: .01em; }
.top-phone { display: inline-flex; align-items: center; gap: .45rem; color: #fff; font: 800 1.02rem var(--font-display); letter-spacing: .01em; text-decoration: none; }
.top-phone span { color: #c3cede; font: 600 .86rem var(--font-body); }
.top-phone:hover { color: #9cd0ff; }
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: var(--glass); -webkit-backdrop-filter: blur(16px) saturate(170%); backdrop-filter: blur(16px) saturate(170%); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; gap: 1rem; padding-block: .7rem; }
.brand { margin-right: auto; color: var(--fg); text-decoration: none; font: 700 1.2rem var(--font-display); letter-spacing: -.02em; white-space: nowrap; }
.brand b { color: var(--link); font-weight: 700; }
.icon-btn { width: 42px; height: 42px; display: inline-grid; place-items: center; background: transparent; color: var(--fg); border: 1px solid var(--line); border-radius: 50%; cursor: pointer; }
.nav-toggle { display: none; }
.site-nav { border-top: 1px solid var(--line); }
.site-nav ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .1rem 1.25rem; padding-block: .5rem; }
.site-nav a { color: var(--fg); font-size: .9rem; font-weight: 600; text-decoration: none; white-space: nowrap; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--link); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 50px; padding: .7rem 1.5rem; border: 0; border-radius: 999px; background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; font: 700 1rem var(--font-body); text-decoration: none; cursor: pointer; box-shadow: 0 10px 26px rgba(0, 102, 255, .3); transition: transform .2s, box-shadow .2s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(0, 102, 255, .38); }
.btn.ghost { background: rgba(127, 140, 160, .12); color: inherit; box-shadow: inset 0 0 0 1.5px currentColor; }
.btn.small-btn { min-height: 42px; padding: .4rem 1.1rem; font-size: .92rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; }

.hero { position: relative; overflow: hidden; background: radial-gradient(800px 500px at 78% 30%, rgba(0, 102, 255, .55), transparent 70%), var(--ink); color: var(--on-ink); }
.hero .eyebrow { color: #8fbcff; }
.hero .lede { color: var(--on-ink-muted); }
.hero-inner { position: relative; z-index: 2; display: grid; gap: 1.4rem; padding-block: clamp(4rem, 9vw, 7.5rem); }
.hero-inner > * { max-width: 640px; }
.hero-home { min-height: 720px; display: flex; align-items: center; }
.hero-home .hero-inner { padding-bottom: 9rem; }
#scene { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; }

.glass { background: var(--glass); -webkit-backdrop-filter: blur(20px) saturate(170%); backdrop-filter: blur(20px) saturate(170%); border: 1px solid var(--line); border-radius: 26px; box-shadow: var(--shadow); }
.booking { position: relative; z-index: 3; margin-top: -6rem; padding: clamp(1.25rem, 3vw, 2.25rem); }
.booking h2 { font-size: 1.55rem; margin-bottom: 1rem; }
form .fields { display: grid; gap: .9rem; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
form label { display: grid; gap: .3rem; font-size: .88rem; font-weight: 600; min-width: 0; }
form .full { grid-column: 1 / -1; }
input, select, textarea { width: 100%; min-height: 48px; padding: .6rem .85rem; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--fg); font: inherit; }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 1rem; }
.form-status { font-weight: 600; }
.trap { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
button:disabled { opacity: .6; cursor: wait; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.25rem; }
.stat { display: grid; gap: .3rem; }
.stat strong { font: 700 clamp(2.4rem, 5vw, 3.8rem)/1 var(--font-display); letter-spacing: -.03em; color: var(--link); }
.why { list-style: none; padding: 0; margin-top: 2.5rem; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .9rem 1.5rem; font-weight: 600; }
.why li { display: flex; gap: .55rem; }
.why li::before { content: "\2713"; color: var(--link); font-weight: 800; }

.grid { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 255px), 1fr)); }
.grid-3 { display: grid; gap: 1.25rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { display: grid; gap: clamp(2rem, 5vw, 4rem); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 1.5rem; display: grid; gap: .7rem; align-content: start; min-width: 0; box-shadow: 0 2px 8px rgba(17, 24, 39, .04); transition: transform .18s ease-out, box-shadow .18s ease-out; }
.card:hover { box-shadow: var(--shadow); }
.card h3 a { color: inherit; text-decoration: none; }
.card .icon { color: var(--link); }
.price { font: 700 2.5rem/1 var(--font-display); letter-spacing: -.03em; }
.price small { display: block; margin-bottom: .35rem; font: 600 .82rem var(--font-body); letter-spacing: 0; color: var(--muted); }
.card.feature { background: linear-gradient(150deg, var(--primary), var(--primary-2)); color: #fff; border: 0; }
.card.feature .muted, .card.feature .price small { color: #dbe8ff; }
.card.feature .btn { background: #fff; color: #0047d6; }

.banner { background: linear-gradient(120deg, var(--primary), var(--primary-2)); color: #fff; }
.banner .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem; padding-block: clamp(2.5rem, 5vw, 4rem); }
.banner .btn { background: #fff; color: #0047d6; }
.banner .btn.ghost { background: transparent; color: #fff; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.25rem; }
.steps li { display: grid; gap: .5rem; align-content: start; padding-top: 1rem; border-top: 2px solid var(--primary); }

.map-wrap { display: grid; gap: 2rem; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); align-items: start; }
.map { width: 100%; max-width: 560px; height: auto; display: block; margin-inline: auto; }
.map .land { fill: rgba(0, 102, 255, .13); stroke: var(--primary); stroke-width: 2; stroke-linejoin: round; }
.map .pin { fill: var(--primary); stroke: var(--surface); stroke-width: 2; cursor: pointer; transition: r .15s; }
.map .pin.hub { fill: #111827; stroke: var(--primary); stroke-width: 4; }
.map .pin.on { fill: #38a3ff; r: 11; }
.map text { fill: var(--fg); font: 700 15px var(--font-body); }
.place-list { display: flex; flex-wrap: wrap; gap: .45rem; }
.chip { min-height: 38px; padding: .3rem .85rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--fg); font: 600 .88rem var(--font-body); cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: #fff; }
.badge-row { display: flex; flex-wrap: wrap; gap: .55rem; }
.badge { padding: .5rem 1rem; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-weight: 600; font-size: .92rem; }
.badge.cert { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; border: 0; }

.faq { display: grid; gap: .7rem; max-width: 860px; }
details { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 1rem 1.25rem; }
summary { font-weight: 700; cursor: pointer; }
details p { margin-top: .6rem; color: var(--muted); }

.quote-result { margin-top: 1rem; padding: 1rem 1.25rem; border-radius: 16px; background: rgba(0, 102, 255, .1); font-weight: 700; }
.table-wrap { overflow-x: auto; }
.legal { max-width: 780px; }
.legal h2 { font-size: 1.5rem; margin-top: 1rem; }
.article { padding-block: 1.5rem; border-top: 1px solid var(--line); }
.note { padding: .9rem 1.1rem; border-radius: 14px; background: rgba(0, 102, 255, .09); font-size: .94rem; }

.site-footer { background: var(--ink); color: var(--on-ink-muted); padding-block: 3.5rem 7rem; font-size: .93rem; }
.site-footer a { color: var(--on-ink); }
.site-footer strong { color: var(--on-ink); font-family: var(--font-display); font-size: 1.1rem; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr)); }
.site-footer ul { list-style: none; padding: 0; gap: .3rem; }

.floats { position: fixed; z-index: 55; right: max(16px, env(safe-area-inset-right, 0px)); bottom: calc(16px + env(safe-area-inset-bottom, 0px)); display: flex; flex-direction: column; align-items: flex-end; gap: .55rem; }
.float-btn { width: 54px; height: 54px; display: grid; place-items: center; border: 0; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; box-shadow: 0 10px 26px rgba(0, 72, 214, .4); cursor: pointer; text-decoration: none; }
.float-btn.wa { background: #128c4b; box-shadow: 0 10px 26px rgba(18, 140, 75, .35); }
.float-btn.top { width: 44px; height: 44px; background: #111827; }
.book-tab { position: fixed; z-index: 54; left: max(16px, env(safe-area-inset-left, 0px)); bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }

.chat { position: fixed; z-index: 70; right: max(16px, env(safe-area-inset-right, 0px)); bottom: calc(84px + env(safe-area-inset-bottom, 0px)); width: min(380px, calc(100vw - 32px)); max-height: min(560px, calc(100vh - 110px)); display: flex; flex-direction: column; overflow: hidden; background: var(--surface); }
.chat-head { display: flex; justify-content: space-between; align-items: center; padding: .85rem 1.1rem; background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; }
.chat-head button { background: none; border: 0; color: #fff; font-size: 1.5rem; line-height: 1; cursor: pointer; min-width: 36px; min-height: 36px; }
.chat-log { flex: 1; overflow-y: auto; padding: 1rem; display: grid; gap: .6rem; align-content: start; font-size: .95rem; }
.msg { padding: .55rem .85rem; border-radius: 14px; max-width: 88%; background: var(--bg); justify-self: start; white-space: pre-line; }
.msg.me { justify-self: end; background: var(--primary); color: #fff; }
.chat-quick { display: flex; flex-wrap: wrap; gap: .35rem; padding: 0 1rem .6rem; }
.chat-form { display: flex; gap: .5rem; padding: .7rem; border-top: 1px solid var(--line); }
.chat-form input { min-width: 0; flex: 1; }

.brand { display: inline-flex; align-items: center; margin-left: -6px; }
.brand img { width: auto; height: 50px; flex: none; }
.logo-on-dark { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-on-light { display: none; }
  :root:not([data-theme="light"]) .logo-on-dark { display: block; }
}
:root[data-theme="dark"] .logo-on-light { display: none; }
:root[data-theme="dark"] .logo-on-dark { display: block; }
.footer-logo { width: auto; height: 60px; margin-left: -6px; }
.work-section { background: var(--surface); border-block: 1px solid var(--line); }
.gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.1rem; }
.gallery .wide { grid-column: 1 / -1; }
.gallery .wide img { aspect-ratio: 21 / 8; }
.more-services { margin-top: 1.5rem; padding: 0; border: 0; background: none; }
.more-services > summary { display: inline-flex; align-items: center; min-height: 48px; padding: .6rem 1.4rem; border: 1.5px solid var(--primary); border-radius: 999px; color: var(--link); list-style: none; }
.more-services > summary::-webkit-details-marker { display: none; }
.more-services > summary::after { content: "+"; margin-left: .6rem; font-size: 1.2rem; }
.more-services[open] > summary::after { content: "\2212"; }
.more-services > .grid { margin-top: 1.25rem; }
.chat-note { margin: 0; padding: .55rem 1rem; max-width: none; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .8rem; line-height: 1.45; }
.msg.typing { color: var(--muted); font-style: italic; }
.work-photo { position: relative; margin: 0; overflow: hidden; border-radius: 22px; background: var(--ink); box-shadow: var(--shadow); }
.work-photo img { display: block; width: 100%; height: 100%; aspect-ratio: 4 / 5; object-fit: cover; transition: transform .6s cubic-bezier(.2, .7, .2, 1); }
.work-photo:hover img { transform: scale(1.03); }
.work-photo figcaption { position: absolute; inset: auto 0 0 0; display: grid; gap: .1rem; padding: 3rem 1.25rem 1.1rem; background: linear-gradient(to top, rgba(11, 17, 32, .92), transparent); color: #fff; }
.work-photo figcaption span { color: #d5deeb; font-size: .94rem; }
.promise-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem; }
.promise { display: grid; gap: .5rem; align-content: start; padding-top: 1.1rem; border-top: 2px solid var(--primary); }
.engineer-panel { position: relative; aspect-ratio: 3 / 2; max-width: 100%; overflow: hidden; border-radius: 26px; background: var(--ink); box-shadow: var(--shadow); }
.engineer-panel img, #engineer-scene { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
#engineer-scene { opacity: 0; transition: opacity .5s; }
#engineer-scene.ready { opacity: 1; }
.engineer-grid { align-items: center; }

/* 3D and motion layer */
.hero-3d { display: flex; align-items: center; min-height: 480px; }
.hero-3d .hero-inner > * { max-width: min(640px, 50%); }
.booking.glass { background: var(--surface); }
.hero-3d h1 { font-size: clamp(2.5rem, 4.6vw, 4rem); }
.hero-home { min-height: 760px; }
.hero::before { content: ""; position: absolute; left: -30%; right: -30%; bottom: -8%; height: 62%; z-index: 0; background-image: linear-gradient(rgba(121, 173, 255, .3) 1px, transparent 1px), linear-gradient(90deg, rgba(121, 173, 255, .3) 1px, transparent 1px); background-size: 70px 70px; transform: perspective(520px) rotateX(64deg); transform-origin: bottom; -webkit-mask-image: linear-gradient(to top, #000 15%, transparent 90%); mask-image: linear-gradient(to top, #000 15%, transparent 90%); animation: floor 7s linear infinite; }
@keyframes floor { to { background-position: 0 70px; } }
.grad-text { background: linear-gradient(95deg, #ffffff, #63b3ff 55%, #2d8cff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-chips { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.chip3d { position: absolute; padding: .55rem 1rem; border: 1px solid rgba(255, 255, 255, .28); border-radius: 999px; background: rgba(255, 255, 255, .13); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); color: #fff; font-weight: 700; font-size: .9rem; box-shadow: 0 14px 34px rgba(0, 0, 0, .35); animation: bob 5s ease-in-out infinite; }
.chip3d.c1 { top: 15%; right: 37%; }
.chip3d.c2 { top: 45%; right: 5%; animation-delay: -1.6s; }
.chip3d.c3 { bottom: 25%; right: 30%; animation-delay: -3.2s; }
@keyframes bob { 50% { transform: translateY(-14px); } }

.marquee { overflow: hidden; padding-block: 2.5rem .5rem; -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; width: max-content; gap: 3rem; animation: slide 38s linear infinite; }
.marquee-track span { font: 700 clamp(1.2rem, 2.4vw, 1.8rem) var(--font-display); color: var(--muted); white-space: nowrap; }
@keyframes slide { to { transform: translateX(-50%); } }

.card { position: relative; overflow: hidden; transform-style: preserve-3d; }
.card::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .2s; background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 50%), rgba(0, 102, 255, .16), transparent 70%); }
.card:hover::after { opacity: 1; }
.card:hover { border-color: var(--primary); }
.card > svg.icon { width: 50px; height: 50px; padding: 11px; border-radius: 15px; color: #fff; background: linear-gradient(145deg, #2d8cff, var(--primary-2)); box-shadow: 0 10px 20px rgba(0, 72, 214, .32), inset 0 2px 3px rgba(255, 255, 255, .4); }
.card > * { position: relative; z-index: 1; }

.stack-section { background: radial-gradient(760px 480px at 80% 50%, rgba(0, 102, 255, .13), transparent 72%); }
.stack-grid { align-items: center; }
.layer-list { list-style: none; padding: 0; gap: .35rem; margin-top: .4rem; }
.layer-btn { display: grid; gap: .1rem; width: 100%; padding: .75rem 1rem; border: 1px solid transparent; border-radius: 14px; background: transparent; color: var(--fg); font: inherit; text-align: left; cursor: pointer; transition: background .2s, border-color .2s; }
.layer-btn span { color: var(--muted); font-size: .94rem; }
.layer-btn.on { background: var(--surface); border-color: var(--primary); box-shadow: var(--shadow); }
.stack3d { display: grid; place-items: center; min-height: 540px; perspective: 1400px; overflow: hidden; }
.stack3d-inner { position: relative; margin-top: 130px; width: min(270px, 58vw); aspect-ratio: 1; transform-style: preserve-3d; transform: rotateX(58deg) rotateZ(-42deg); animation: stack-sway 11s ease-in-out infinite; }
@keyframes stack-sway { 50% { transform: rotateX(54deg) rotateZ(-32deg); } }
.plate { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10%; padding: 12%; border: 1px solid rgba(255, 255, 255, .55); border-radius: 22px; background: linear-gradient(135deg, rgba(45, 140, 255, .9), rgba(0, 71, 214, .92)); box-shadow: -12px 14px 26px rgba(4, 25, 80, .32); transform: translateZ(calc(var(--i) * 52px)); transition: transform .35s, background .35s; }
.plate i { border-radius: 8px; background: rgba(255, 255, 255, .24); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22); }
.plate.on { background: linear-gradient(135deg, #7cc3ff, #0a7bff); transform: translateZ(calc(var(--i) * 52px + 22px)); }
.plate.on i { background: rgba(255, 255, 255, .72); }

.steps { position: relative; }
.steps li { position: relative; padding-top: 1.6rem; }
.steps li::before { content: ""; position: absolute; top: -8px; left: 0; width: 14px; height: 14px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 5px rgba(0, 102, 255, .2); animation: ping 2.4s ease-in-out infinite; }
.steps li:nth-child(2)::before { animation-delay: .4s; }
.steps li:nth-child(3)::before { animation-delay: .8s; }
.steps li:nth-child(4)::before { animation-delay: 1.2s; }
@keyframes ping { 50% { box-shadow: 0 0 0 10px rgba(0, 102, 255, 0); } }

.banner { background-size: 220% 220%; background-image: linear-gradient(120deg, #0047d6, #0066ff, #2d8cff, #0047d6); animation: sheen 11s ease infinite; }
@keyframes sheen { 50% { background-position: 100% 50%; } }
.map-tilt { perspective: 1200px; }
.map { transform: rotateX(16deg) rotateZ(-3deg); filter: drop-shadow(0 26px 22px rgba(0, 71, 214, .28)); transition: transform .5s; }
.map:hover { transform: none; }
.reveal { transform: translateY(26px) scale(.985); opacity: .55; transition: transform .7s cubic-bezier(.2, .7, .2, 1), opacity .7s; }
.reveal.seen { transform: none; opacity: 1; }

@media (max-width: 1040px) {
  .nav-toggle { display: inline-grid; }
  .site-nav { display: none; }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; gap: .55rem; padding-block: 1rem; }
  .site-nav a { font-size: 1.05rem; }
  .header-cta { display: none; }
}
@media (max-width: 860px) {
  #scene { opacity: .2; }
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gallery .wide img { aspect-ratio: 16 / 9; }
  .hero-3d .hero-inner > * { max-width: none; }
  .hero-home { min-height: 620px; }
  .hero-chips { display: none; }
  .stack3d { min-height: 460px; }
  .grid-3, .grid-2, .map-wrap { grid-template-columns: minmax(0, 1fr); }
  .stats, .steps, .promise-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .why { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .why, .gallery, .promise-grid { grid-template-columns: minmax(0, 1fr); }
  .book-tab { display: none; }
  .brand img { height: 44px; }
  .top-tag { font-size: .8rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
  .reveal { transform: none; opacity: 1; }
}