/* ARGENT GLAZING SYSTEMS — "Dusk Glass" design system */
:root {
  --steel: #1B2A3A;
  --steel-2: #10202E;
  --steel-3: #0B1723;
  --glass: #C8D8D4;
  --glass-deep: #5E8C7F;
  --alum: #B9C2CC;
  --alum-2: #8B98A6;
  --amber: #E8842B;
  --amber-soft: rgba(232,132,43,.14);
  --fog: #F4F6F7;
  --ink: #22303D;
  --mute: #5D6B7A;
  --line: #E2E7EA;
  --serif: 'Fraunces', serif;
  --sans: 'Inter', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { background:var(--fog); color:var(--ink); font-family:var(--sans); font-size:16.5px; line-height:1.6; -webkit-font-smoothing:antialiased; }
img { max-width:100%; display:block; }
a { color:inherit; text-decoration:none; }
.container { max-width:1180px; margin:0 auto; padding:0 32px; }

/* ---------- header ---------- */
.site-header { position:fixed; top:0; left:0; right:0; z-index:100; background:rgba(16,32,46,.82); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px); border-bottom:1px solid rgba(185,194,204,.14); transition:background .3s; }
.site-header .container { display:flex; align-items:center; justify-content:space-between; height:74px; }
.brand { display:flex; align-items:center; gap:13px; }
.brand .mark { width:40px; height:40px; flex-shrink:0; }
.brand .word { color:#fff; }
.brand .word .n1 { font-family:var(--serif); font-weight:600; font-size:19px; letter-spacing:.02em; display:block; line-height:1.1; }
.brand .word .n2 { font-family:var(--sans); font-weight:600; font-size:9.5px; letter-spacing:.34em; text-transform:uppercase; color:var(--alum); display:block; }
.nav { display:flex; gap:30px; align-items:center; }
.nav a { color:rgba(244,246,247,.78); font-size:13.5px; font-weight:500; letter-spacing:.04em; padding:6px 0; border-bottom:2px solid transparent; transition:all .2s; }
.nav a:hover { color:#fff; }
.nav a.active { color:#fff; border-bottom-color:var(--amber); }
.nav .cta { background:var(--amber); color:#fff; padding:10px 20px; border-radius:6px; font-weight:600; border-bottom:none; transition:all .2s; }
.nav .cta:hover { background:#f5983f; transform:translateY(-1px); }
.nav-toggle { display:none; background:none; border:none; color:#fff; font-size:26px; cursor:pointer; }
@media (max-width:920px){
  .nav { position:fixed; top:74px; right:0; bottom:0; width:min(320px,80vw); background:var(--steel-2); flex-direction:column; align-items:flex-start; padding:36px 30px; gap:22px; transform:translateX(100%); transition:transform .3s; }
  .nav.open { transform:translateX(0); }
  .nav-toggle { display:block; }
}

/* ---------- page hero (interior pages) ---------- */
.page-hero { background:linear-gradient(160deg, var(--steel) 0%, var(--steel-3) 100%); color:#fff; padding:170px 0 90px; position:relative; overflow:hidden; }
.page-hero .grid-lines { position:absolute; inset:0; opacity:.35; pointer-events:none; }
.page-hero h1 { font-family:var(--serif); font-weight:600; font-size:clamp(38px,4.6vw,58px); line-height:1.1; letter-spacing:-0.01em; max-width:820px; }
.page-hero h1 em, h2 em { font-style:italic; color:var(--amber); }
.page-hero .lede { margin-top:20px; font-size:18.5px; line-height:1.6; color:rgba(244,246,247,.75); max-width:680px; }

/* ---------- shared type ---------- */
.eyebrow { font-family:var(--sans); font-weight:600; font-size:12px; letter-spacing:.3em; text-transform:uppercase; color:var(--amber); margin-bottom:14px; }
.page-hero .eyebrow { color:var(--amber); }
h2.sec { font-family:var(--serif); font-weight:600; font-size:clamp(28px,3.2vw,40px); line-height:1.15; color:var(--steel); max-width:760px; }
section.band { padding:96px 0; }
section.band.dark { background:linear-gradient(160deg, var(--steel) 0%, var(--steel-3) 100%); color:#fff; }
section.band.dark h2.sec { color:#fff; }
section.band.tint { background:#fff; }
.sub { color:var(--mute); font-size:17px; max-width:700px; margin-top:16px; }
.band.dark .sub { color:rgba(244,246,247,.72); }

/* ---------- reveal ---------- */
.reveal { opacity:0; transform:translateY(26px); transition:opacity .8s cubic-bezier(.22,.9,.32,1), transform .8s cubic-bezier(.22,.9,.32,1); }
.reveal.in { opacity:1; transform:none; }
.reveal.d1 { transition-delay:.12s; } .reveal.d2 { transition-delay:.24s; } .reveal.d3 { transition-delay:.36s; }

/* ---------- cards ---------- */
.cards3 { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:24px; margin-top:44px; }
.gcard { background:#fff; border:1px solid var(--line); border-radius:14px; overflow:hidden; transition:transform .3s, box-shadow .3s; box-shadow:0 1px 2px rgba(11,23,35,.05); }
.gcard:hover { transform:translateY(-5px); box-shadow:0 18px 44px -18px rgba(11,23,35,.28); }
.gcard .ph { aspect-ratio:4/3; overflow:hidden; position:relative; }
.gcard .ph img { width:100%; height:100%; object-fit:cover; transition:transform .6s; }
.gcard:hover .ph img { transform:scale(1.045); }
.gcard .bd { padding:24px 26px 28px; }
.gcard h3 { font-family:var(--serif); font-weight:600; font-size:21px; color:var(--steel); margin-bottom:8px; }
.gcard p { font-size:14.5px; color:var(--mute); line-height:1.6; }
.gcard .meta { font-family:var(--mono); font-size:11.5px; color:var(--alum-2); letter-spacing:.04em; margin-top:14px; display:flex; gap:14px; flex-wrap:wrap; }
.gcard .link { display:inline-block; margin-top:14px; color:var(--amber); font-weight:600; font-size:13.5px; letter-spacing:.03em; }

/* ---------- stat wall ---------- */
.stat-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:34px; margin-top:40px; }
.stat .num { font-family:var(--serif); font-weight:600; font-size:clamp(38px,4vw,54px); color:var(--amber); line-height:1; }
.stat .lab { font-size:12px; letter-spacing:.18em; text-transform:uppercase; color:rgba(244,246,247,.6); margin-top:10px; }
.stat .tick { height:2px; width:0; background:var(--amber); margin-top:12px; transition:width 1.1s cubic-bezier(.22,.9,.32,1); }
.stat.in .tick { width:44px; }
.band:not(.dark) .stat .lab { color:var(--mute); }

/* ---------- buttons ---------- */
.btn { display:inline-block; background:var(--amber); color:#fff; font-weight:600; font-size:15px; letter-spacing:.02em; padding:15px 32px; border-radius:8px; border:none; cursor:pointer; transition:all .2s; }
.btn:hover { background:#f5983f; transform:translateY(-2px); box-shadow:0 12px 26px -12px rgba(232,132,43,.6); }
.btn.ghost { background:transparent; border:1px solid rgba(244,246,247,.35); color:#fff; }
.btn.ghost:hover { border-color:var(--amber); color:var(--amber); box-shadow:none; }
.btn.steel { background:var(--steel); }
.btn.steel:hover { background:var(--steel-2); box-shadow:0 12px 26px -12px rgba(27,42,58,.5); }

/* ---------- footer ---------- */
.site-footer { background:var(--steel-3); color:rgba(244,246,247,.7); padding:70px 0 40px; font-size:14px; }
.site-footer .cols { display:grid; grid-template-columns:2fr 1fr 1fr 1.4fr; gap:40px; }
.site-footer h4 { color:#fff; font-size:12px; letter-spacing:.22em; text-transform:uppercase; margin-bottom:16px; }
.site-footer a { display:block; padding:4px 0; color:rgba(244,246,247,.62); transition:color .2s; }
.site-footer a:hover { color:var(--amber); }
.site-footer .emergency { font-family:var(--mono); color:var(--amber); font-size:15px; }
.disclaimer { margin-top:46px; padding-top:22px; border-top:1px solid rgba(185,194,204,.15); font-size:12px; color:rgba(244,246,247,.45); line-height:1.6; }
@media (max-width:820px){ .site-footer .cols { grid-template-columns:1fr 1fr; } }

/* ---------- home hero: sketch to reality ---------- */
.hero { position:relative; height:100vh; min-height:640px; background:var(--steel-3); overflow:hidden; }
.hero .blueprint { position:absolute; inset:0; background-size:cover; background-position:center; opacity:0; z-index:1; clip-path:inset(0 100% 0 0); }
.hero.sketch .blueprint { opacity:1; clip-path:inset(0 0 0 0); transition:opacity .4s ease, clip-path 1.1s cubic-bezier(.4,.1,.3,1); }
.hero.done .blueprint { opacity:0; transition:opacity 1.4s ease; }
.hero .wall { position:absolute; inset:0; display:grid; z-index:2; }
.hero .pane { position:relative; opacity:0; }
.hero .pane.set { opacity:1; transition:opacity .45s ease; }
.hero .pane::after { content:""; position:absolute; inset:0; background:linear-gradient(135deg, rgba(255,235,205,.5), rgba(232,132,43,.18)); opacity:var(--glint,0); transition:opacity .25s ease; pointer-events:none; }
.hero .scrim { position:absolute; inset:0; z-index:4; pointer-events:none; background:linear-gradient(90deg, rgba(11,23,35,.78) 0%, rgba(11,23,35,.42) 46%, rgba(11,23,35,.08) 75%), linear-gradient(0deg, rgba(11,23,35,.65) 0%, transparent 30%); }
.hero .mulls { z-index:4; }
.hero .mull-v, .hero .mull-h { position:absolute; background:rgba(185,194,204,.55); transition:transform .5s cubic-bezier(.22,.9,.32,1), opacity 1.2s ease; }
.hero .mull-v { top:0; bottom:0; width:1px; transform:scaleY(0); transform-origin:top; }
.hero .mull-h { left:0; right:0; height:1px; transform:scaleX(0); transform-origin:left; }
.hero .mull-v.on { transform:scaleY(1); }
.hero .mull-h.on { transform:scaleX(1); }
.hero.done .mull-v, .hero.done .mull-h { opacity:.32; }
.hero .sweep { position:absolute; z-index:5; top:-20%; bottom:-20%; width:34%; background:linear-gradient(100deg, transparent 0%, rgba(232,132,43,.24) 42%, rgba(255,214,150,.34) 50%, rgba(232,132,43,.24) 58%, transparent 100%); transform:translateX(-140%) skewX(-8deg); pointer-events:none; }
.hero .sweep.go { animation:sweep 1.5s cubic-bezier(.4,.1,.3,1) forwards; }
@keyframes sweep { to { transform:translateX(420%) skewX(-8deg); } }
.hero .hero-copy { position:absolute; inset:0; display:flex; flex-direction:column; justify-content:center; z-index:5; pointer-events:none; }
.hero .hero-copy .inner { max-width:1180px; margin:0 auto; padding:0 32px; width:100%; }
.hero .kick { font-size:12.5px; letter-spacing:.32em; text-transform:uppercase; color:var(--alum); opacity:0; transform:translateY(14px); transition:all .7s ease; }
.hero h1 { font-family:var(--serif); font-weight:600; font-size:clamp(42px,5.6vw,76px); line-height:1.06; color:#fff; letter-spacing:-0.015em; margin-top:18px; max-width:900px; opacity:0; transform:translateY(20px); transition:all .9s cubic-bezier(.22,.9,.32,1); }
.hero h1 em { font-style:italic; color:var(--amber); }
.hero .sub { color:rgba(244,246,247,.72); font-size:18px; max-width:560px; margin-top:22px; opacity:0; transform:translateY(16px); transition:all .9s ease .15s; }
.hero .hero-ctas { margin-top:34px; display:flex; gap:16px; flex-wrap:wrap; opacity:0; transform:translateY(16px); transition:all .9s ease .3s; pointer-events:auto; }
.hero.words .kick, .hero.words h1, .hero.words .sub, .hero.words .hero-ctas { opacity:1; transform:none; }
.hero .statbar { position:absolute; left:0; right:0; bottom:0; z-index:6; background:rgba(11,23,35,.78); backdrop-filter:blur(10px); border-top:1px solid rgba(185,194,204,.18); transform:translateY(100%); transition:transform .8s cubic-bezier(.22,.9,.32,1); }
.hero .statbar.up { transform:none; }
.hero .statbar .inner { max-width:1180px; margin:0 auto; padding:22px 32px; display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.hero .statbar .num { font-family:var(--serif); font-size:clamp(22px,2.4vw,32px); font-weight:600; color:#fff; }
.hero .statbar .num span.unit { color:var(--amber); }
.hero .statbar .lab { font-size:10.5px; letter-spacing:.16em; text-transform:uppercase; color:rgba(244,246,247,.55); margin-top:4px; }
@media (max-width:720px){ .hero .statbar .inner { grid-template-columns:repeat(2,1fr); padding:16px 24px; } }

/* ---------- before / after slider ---------- */
.ba { position:relative; border-radius:14px; overflow:hidden; aspect-ratio:16/10; user-select:none; box-shadow:0 24px 60px -24px rgba(11,23,35,.45); }
.ba img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; pointer-events:none; }
.ba .after-wrap { position:absolute; inset:0; overflow:hidden; }
.ba .handle { position:absolute; top:0; bottom:0; width:3px; background:var(--amber); cursor:ew-resize; z-index:4; box-shadow:0 0 22px rgba(232,132,43,.8); }
.ba .handle .grip { position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); width:46px; height:64px; background:var(--steel-2); border:1px solid var(--amber); border-radius:8px; display:flex; align-items:center; justify-content:center; gap:5px; }
.ba .handle .grip i { display:block; width:2px; height:26px; background:var(--alum); }
.ba .handle .grip i:nth-child(2) { background:var(--amber); }
.ba .tag-b, .ba .tag-a { position:absolute; top:18px; z-index:3; font-family:var(--mono); font-size:11.5px; letter-spacing:.14em; padding:6px 12px; border-radius:5px; background:rgba(11,23,35,.7); color:#fff; }
.ba .tag-b { left:18px; } .ba .tag-a { right:18px; }

/* ---------- service selector ---------- */
.selector { display:grid; grid-template-columns:1.1fr 1fr; gap:48px; align-items:center; margin-top:48px; }
.selector svg { width:100%; height:auto; }
.selector .zone { cursor:pointer; }
.selector .zone rect.fill { fill:rgba(200,216,212,.06); transition:fill .3s; }
.selector .zone.on rect.fill, .selector .zone:hover rect.fill { fill:rgba(232,132,43,.22); }
.selector .zone rect.frame { fill:none; stroke:rgba(185,194,204,.4); stroke-width:1; }
.selector .zone.on rect.frame { stroke:var(--amber); }
.sel-panel { background:rgba(244,246,247,.04); border:1px solid rgba(185,194,204,.18); border-radius:14px; padding:34px 36px; min-height:300px; }
.sel-panel h3 { font-family:var(--serif); font-size:26px; font-weight:600; color:#fff; margin-bottom:12px; }
.sel-panel p { color:rgba(244,246,247,.75); font-size:15.5px; }
.sel-panel .systems { font-family:var(--mono); font-size:12px; color:var(--glass); margin-top:16px; line-height:1.9; }
.sel-panel .link { display:inline-block; margin-top:18px; color:var(--amber); font-weight:600; font-size:14px; }
@media (max-width:860px){ .selector { grid-template-columns:1fr; } }

/* ---------- map ---------- */
.map-panel { position:relative; background:radial-gradient(ellipse at 60% 40%, rgba(59,86,110,.55) 0%, rgba(11,23,35,0) 65%), var(--steel-3); border:1px solid rgba(185,194,204,.16); border-radius:16px; padding:40px; overflow:hidden; }
.map-panel .gridbg { position:absolute; inset:0; background-image:linear-gradient(rgba(185,194,204,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(185,194,204,.06) 1px, transparent 1px); background-size:44px 44px; }
.pin { position:absolute; width:12px; height:12px; border-radius:50%; background:var(--amber); box-shadow:0 0 0 4px rgba(232,132,43,.22), 0 0 18px rgba(232,132,43,.65); opacity:0; transform:translateY(-14px); transition:all .45s cubic-bezier(.22,.9,.32,1); }
.pin.drop { opacity:1; transform:none; }
.pin .city { position:absolute; left:16px; top:-4px; font-family:var(--mono); font-size:11px; color:var(--alum); white-space:nowrap; }
.pin.hq { width:16px; height:16px; background:#fff; box-shadow:0 0 0 5px rgba(232,132,43,.4), 0 0 24px rgba(232,132,43,.9); }
.pin.hq .city { color:#fff; font-weight:600; }

/* ---------- tables (spec vault) ---------- */
table.spec { width:100%; border-collapse:collapse; margin-top:36px; font-size:14.5px; background:#fff; border-radius:12px; overflow:hidden; border:1px solid var(--line); }
table.spec th { background:var(--steel); color:var(--fog); text-align:left; font-size:11.5px; letter-spacing:.12em; text-transform:uppercase; padding:14px 18px; }
table.spec td { padding:14px 18px; border-top:1px solid var(--line); font-family:var(--mono); font-size:13px; color:var(--ink); transition:background .2s; }
table.spec tr:hover td { background:linear-gradient(90deg, rgba(200,216,212,.25), rgba(232,132,43,.07)); }
table.spec .dl { color:var(--amber); font-weight:600; font-family:var(--sans); cursor:pointer; }

/* ---------- misc ---------- */
.split { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
@media (max-width:860px){ .split { grid-template-columns:1fr; } }
.split .ph { border-radius:14px; overflow:hidden; box-shadow:0 24px 60px -26px rgba(11,23,35,.4); }
.checks { list-style:none; margin-top:22px; }
.checks li { padding:9px 0 9px 34px; position:relative; font-size:15.5px; color:var(--ink); border-bottom:1px solid var(--line); }
.band.dark .checks li { color:rgba(244,246,247,.82); border-bottom-color:rgba(185,194,204,.14); }
.checks li::before { content:""; position:absolute; left:0; top:14px; width:18px; height:18px; border-radius:4px; background:var(--amber-soft); border:1px solid var(--amber); }
.checks li::after { content:""; position:absolute; left:5px; top:18px; width:8px; height:5px; border-left:2px solid var(--amber); border-bottom:2px solid var(--amber); transform:rotate(-45deg); }
.timeline { position:relative; margin-top:46px; padding-left:34px; }
.timeline::before { content:""; position:absolute; left:8px; top:6px; bottom:6px; width:2px; background:linear-gradient(var(--amber), var(--glass-deep)); }
.timeline .tl { position:relative; padding-bottom:34px; }
.timeline .tl::before { content:""; position:absolute; left:-32px; top:6px; width:14px; height:14px; border-radius:50%; background:var(--steel); border:3px solid var(--amber); }
.timeline .tl .yr { font-family:var(--mono); font-size:13px; color:var(--amber); letter-spacing:.08em; }
.timeline .tl h3 { font-family:var(--serif); font-size:20px; font-weight:600; color:var(--steel); margin:4px 0 6px; }
.timeline .tl p { font-size:14.5px; color:var(--mute); max-width:640px; }
.quoteband { border-left:3px solid var(--amber); padding:8px 0 8px 28px; margin:40px 0; }
.quoteband p.q { font-family:var(--serif); font-style:italic; font-size:22px; line-height:1.45; color:var(--steel); }
.band.dark .quoteband p.q { color:#fff; }
.quoteband .who { margin-top:12px; font-family:var(--mono); font-size:12.5px; color:var(--mute); letter-spacing:.06em; }
.band.dark .quoteband .who { color:var(--alum); }
form .row { display:grid; grid-template-columns:1fr 1fr; gap:18px; }
@media (max-width:640px){ form .row { grid-template-columns:1fr; } }
form label { display:block; font-size:12px; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color:var(--alum); margin:18px 0 7px; }
form input, form select, form textarea { width:100%; background:rgba(244,246,247,.06); border:1px solid rgba(185,194,204,.3); border-radius:8px; padding:13px 15px; color:#fff; font-family:var(--sans); font-size:15px; transition:border-color .2s; }
form input:focus, form select:focus, form textarea:focus { outline:none; border-color:var(--amber); }
form select option { color:var(--ink); }
.divider-strip { height:220px; background-size:cover; background-position:center; background-attachment:fixed; }
@media (max-width:860px){ .divider-strip { background-attachment:scroll; height:160px; } }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity:1; transform:none; transition:none; }
  .hero .kick, .hero h1, .hero .sub, .hero .hero-ctas { opacity:1; transform:none; transition:none; }
  .hero .pane { opacity:1; transition:none; }
  .hero .blueprint { display:none; }
  .hero .mull-v, .hero .mull-h { transform:none; opacity:.32; }
  .hero .sweep { display:none; }
  .hero .statbar { transform:none; }
  html { scroll-behavior:auto; }
}