/* Island Oxygen Ltd. - Ironworks x Index Ledger
   Palette: their navy + rust bent to Ironworks gunmetal. Hard edges, thick
   borders, ruled ledger rows, one molten band. Motion: heavy, deliberate. */

:root{
  --gunmetal:#171C26;      /* page base */
  --panel:#1F2633;         /* raised surface */
  --panel-deep:#131822;    /* inset surface */
  --navy:#22315C;          /* their logo navy: footer + accents */
  --molten:#B5502F;        /* their island rust, tuned for dark bg */
  --molten-deep:#93401F;   /* hover / borders on molten */
  --steel:#9AA1A9;         /* muted text */
  --bone:#EEEDE8;          /* primary text */
  --hairline:#2A3240;      /* rules on gunmetal */
  --rule:#3A4453;          /* heavier rules / borders */
  --notch:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto} }
body{margin:0;background:var(--gunmetal);color:var(--bone);
  font-family:'Inter',system-ui,sans-serif;font-size:16.5px;line-height:1.65;
  -webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--bone)}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 22px}

h1,h2,h3{line-height:1.08;margin:0 0 18px}
h1,h2,.disp{font-family:'Anton',sans-serif;font-weight:400;text-transform:uppercase;letter-spacing:.015em}
h1{font-size:clamp(40px,7vw,76px)}
h2{font-size:clamp(30px,4.4vw,48px)}
h3{font-family:'Inter',sans-serif;font-weight:700;font-size:19px;letter-spacing:.01em}
p{margin:0 0 16px}
.muted{color:var(--steel)}
.lead{font-size:18.5px;line-height:1.6}

/* skip link */
.skip{position:absolute;left:-999px;top:0;background:var(--molten);color:#fff;
  padding:10px 16px;z-index:200;font-weight:600}
.skip:focus{left:12px;top:12px}

:focus-visible{outline:3px solid var(--molten);outline-offset:2px}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:100;background:var(--gunmetal);
  border-bottom:2px solid var(--rule)}
header .bar{display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;transition:padding .3s ease}
header.shrunk .bar{padding:9px 0}
.logo-plate{background:#fff;padding:7px 12px;display:flex;align-items:center;
  border:2px solid var(--rule)}
.logo-plate img{height:34px;width:auto;transition:height .3s ease}
header.shrunk .logo-plate img{height:24px}
nav.links{display:flex;align-items:center;gap:26px}
nav.links a{color:var(--bone);text-decoration:none;font-weight:600;font-size:15px;
  padding:4px 0;border-bottom:3px solid transparent}
nav.links a:hover{border-bottom-color:var(--steel)}
nav.links a[aria-current="page"]{border-bottom-color:var(--molten)}
nav.links a.order-btn{background:var(--molten);color:#fff;padding:11px 20px;
  border:none;border-bottom:none;font-weight:700}
nav.links a.order-btn:hover{background:var(--molten-deep)}
.menu-btn{display:none;background:none;border:2px solid var(--rule);color:var(--bone);
  padding:9px 12px;font-size:15px;font-weight:700;font-family:inherit;cursor:pointer}

/* ---------- buttons ---------- */
.btn{display:inline-block;font-weight:700;font-size:15.5px;text-decoration:none;
  padding:14px 26px;background:var(--molten);color:#fff;border:2px solid var(--molten);
  transition:background .25s ease,transform .25s ease}
.btn:hover{background:var(--molten-deep);border-color:var(--molten-deep);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--bone);border:2px solid var(--rule)}
.btn--ghost:hover{background:var(--panel);border-color:var(--steel);transform:translateY(-2px)}
.btn--onlight{background:var(--gunmetal);color:var(--bone);border-color:var(--gunmetal)}
.btn--onlight:hover{background:#000;border-color:#000}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- hero ---------- */
.hero{position:relative;min-height:76vh;display:flex;align-items:flex-end;overflow:hidden;
  border-bottom:2px solid var(--rule)}
.hero .bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
.hero .scrim{position:absolute;inset:0;z-index:1;
  background:linear-gradient(to top,rgba(13,16,23,.93) 0%,rgba(13,16,23,.55) 45%,rgba(13,16,23,.25) 100%)}
.hero .wrap{position:relative;z-index:2;width:100%;padding-top:70px;padding-bottom:64px}
.hero h1{margin:0 0 14px}
.hero .lead{max-width:56ch;margin-bottom:26px}
.js-anim .hero h1,.js-anim .hero .lead,.js-anim .hero .cta-row{opacity:0;transform:translateY(30px)}

/* inner-page poster band */
.page-hero{background:var(--panel-deep);border-bottom:2px solid var(--rule);
  padding:74px 0 46px;position:relative;overflow:hidden}
.page-hero h1{font-size:clamp(34px,5.4vw,58px);margin:0 0 10px}
.page-hero p{max-width:62ch;margin:0}
.grain,.hero .bg::after{background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.014) 0 2px,transparent 2px 6px)}
.grain{position:absolute;inset:0;pointer-events:none}

/* ---------- sections ---------- */
section{padding:74px 0}
.band-panel{background:var(--panel)}
.band-molten{background:var(--molten)}
.band-molten h2,.band-molten p{color:#fff}
.band-navy{background:var(--navy)}
.section-head{max-width:64ch;margin-bottom:36px}
.section-head p{color:var(--steel)}

/* notched statement panel (Ironworks corner motif) */
.notched{background:var(--panel);border:2px solid var(--rule);padding:26px 28px;
  clip-path:polygon(0 0,calc(100% - var(--notch)) 0,100% var(--notch),100% 100%,var(--notch) 100%,0 calc(100% - var(--notch)))}

/* ---------- the ledger (signature element) ---------- */
.ledger{border-top:3px solid var(--rule)}
.ledger-family{display:grid;grid-template-columns:minmax(200px,320px) 1fr;gap:10px 34px;
  padding:26px 0;border-bottom:2px solid var(--hairline);align-items:start}
.ledger-family .fam{font-family:'Anton',sans-serif;font-size:clamp(22px,2.6vw,32px);
  text-transform:uppercase;letter-spacing:.02em;color:var(--bone);margin:0}
.ledger-family .fam small{display:block;font-family:'Inter',sans-serif;font-size:13px;
  letter-spacing:.01em;text-transform:none;color:var(--steel);font-weight:500;margin-top:4px}
.ledger-rows{margin:0;padding:0;list-style:none;font-variant-numeric:tabular-nums}
.ledger-rows li{display:flex;align-items:baseline;gap:10px;padding:7px 0;font-size:15.5px}
.ledger-rows li .item{white-space:nowrap}
.ledger-rows li .dots{flex:1;border-bottom:2px dotted var(--rule);transform:translateY(-4px);min-width:24px}
.ledger-rows li .spec{color:var(--steel);white-space:nowrap}
.js-anim [data-reveal],.js-anim [data-reveal-group]>*{opacity:0;transform:translateY(30px)}

/* ---------- feature rows / cards ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.photo-frame{border:2px solid var(--rule)}
.photo-frame img{width:100%;height:100%;object-fit:cover}

/* photo placeholder plates (on-brand, labelled) */
.ph{border:2px dashed var(--rule);background:var(--panel-deep);min-height:260px;
  display:flex;align-items:center;justify-content:center;text-align:center;padding:28px;
  clip-path:polygon(0 0,calc(100% - var(--notch)) 0,100% var(--notch),100% 100%,var(--notch) 100%,0 calc(100% - var(--notch)))}
.ph p{color:var(--steel);font-weight:600;font-size:14.5px;letter-spacing:.02em;
  text-transform:uppercase;margin:0;max-width:34ch}

/* ---------- reviews (house style: top bar + stars, dateless) ---------- */
.reviews{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:860px}
.review{background:var(--panel);border:2px solid var(--rule);border-top:6px solid var(--molten);
  padding:22px 24px}
.review .stars{color:var(--molten);letter-spacing:3px;font-size:15px;margin-bottom:10px}
.review blockquote{margin:0 0 12px;font-size:17px;line-height:1.55}
.review cite{font-style:normal;color:var(--steel);font-size:14px}

/* ---------- depots ---------- */
.depots{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.depot{background:var(--panel);border:2px solid var(--rule);padding:20px 22px}
.depot h3{margin:0 0 4px}
.depot p{margin:0;color:var(--steel);font-size:15px}
.depot a.tel{display:inline-block;margin-top:12px;font-weight:700;color:var(--bone);
  text-decoration:none;border:2px solid var(--rule);padding:8px 14px}
.depot a.tel:hover{border-color:var(--molten);color:#fff;background:var(--molten)}

/* ---------- team ---------- */
.team{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.person{display:flex;align-items:center;gap:14px;background:var(--panel);
  border:2px solid var(--rule);padding:14px 16px}
.person img{width:64px;height:64px;border-radius:50%;object-fit:cover;border:2px solid var(--rule)}
.person .role{color:var(--steel);font-size:14px}
.person h3{margin:0 0 2px;font-size:16.5px}

/* ---------- contact / forms ---------- */
.contact-cards{display:flex;flex-wrap:wrap;gap:14px;margin:22px 0 8px}
.contact-cards a,.contact-cards span{display:inline-block;font-weight:700;font-size:15.5px;
  color:var(--bone);text-decoration:none;border:2px solid var(--rule);padding:12px 18px}
.contact-cards a:hover{border-color:var(--molten)}
form{max-width:640px}
form label{display:block;font-weight:700;font-size:14.5px;margin:18px 0 6px}
form input,form select,form textarea{width:100%;background:var(--panel-deep);
  border:2px solid var(--rule);color:var(--bone);padding:12px 14px;font-family:inherit;
  font-size:16px}
form input:focus,form select:focus,form textarea:focus{border-color:var(--molten);outline:none}
form textarea{min-height:120px;resize:vertical}
form button{margin-top:24px;cursor:pointer;font-family:inherit}
.hp{position:absolute;left:-9999px}
.gas-row{display:grid;grid-template-columns:1fr 120px;gap:14px}
.name-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:560px){ .name-row{grid-template-columns:1fr} }
fieldset{border:2px solid var(--hairline);padding:6px 18px 18px;margin:26px 0 0}
legend{font-weight:700;padding:0 8px}

/* map */
.map-embed{position:relative;width:100%;aspect-ratio:16/10;overflow:hidden;
  border:2px solid var(--rule)}
.map-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@media (max-width:640px){ .map-embed{aspect-ratio:4/3} }

/* ---------- curtain wipe (signature effect #19) ---------- */
.curtain{position:relative;overflow:hidden}
.js-anim .curtain__cover{position:absolute;inset:0;background:var(--molten);
  transform:scaleX(1);transform-origin:right;z-index:5}
.js-anim .curtain__in{opacity:0}
.js-anim .curtain.is-in .curtain__cover{transform:scaleX(0);
  transition:transform .6s cubic-bezier(.7,0,.2,1)}
.js-anim .curtain.is-in .curtain__in{opacity:1;transition:opacity .3s .35s ease}
@media (prefers-reduced-motion:reduce){
  .js-anim .curtain__cover{display:none}
  .js-anim .curtain__in{opacity:1}
}

/* full-bleed photo interlude */
.interlude{position:relative;min-height:46vh;background-size:cover;background-position:center;
  border-top:2px solid var(--rule);border-bottom:2px solid var(--rule);padding:0}

/* ---------- footer ---------- */
footer{background:var(--navy);border-top:3px solid var(--rule);padding:56px 0 90px}
footer h3{color:#fff}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:34px}
footer p,footer li{color:rgba(255,255,255,.82);font-size:15px}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:8px}
footer a{color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35)}
footer a:hover{border-bottom-color:#fff}
.social{display:flex;gap:16px;margin-top:16px}
.social a{width:46px;height:46px;border-radius:12px;background:rgba(255,255,255,.13);
  display:flex;align-items:center;justify-content:center;border-bottom:none;
  box-shadow:5px 6px 0 rgba(0,0,0,.20);
  transition:transform .2s ease,background .2s ease}
.social a:hover,.social a:focus-visible{transform:scale(1.08);background:rgba(255,255,255,.24)}
.social a:focus-visible{outline:2px solid #fff;outline-offset:3px}
.social svg{width:21px;height:21px;fill:#fff;fill-opacity:.85;display:block}
.social a:hover svg{fill-opacity:1}
.fineprint{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.18);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  color:rgba(255,255,255,.62);font-size:13.5px}
.fineprint a{color:rgba(255,255,255,.82);border-bottom:none}
.fineprint a:hover{color:#fff}

/* ---------- mobile call bar ---------- */
.callbar{display:none}

/* ---------- responsive ---------- */
@media (max-width:880px){
  .grid-2,.reviews,footer .cols{grid-template-columns:1fr}
  .grid-3,.depots{grid-template-columns:1fr 1fr}
  .ledger-family{grid-template-columns:1fr;gap:6px}
  .menu-btn{display:block}
  nav.links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--gunmetal);
    border-bottom:2px solid var(--rule);flex-direction:column;align-items:stretch;
    padding:10px 22px 20px;gap:2px}
  nav.links.open{display:flex}
  nav.links a{padding:13px 4px;border-bottom:1px solid var(--hairline)}
  nav.links a.order-btn{margin-top:12px;text-align:center}
  .hero{min-height:64vh}
}
@media (max-width:640px){
  section{padding:54px 0}
  .grid-3,.depots{grid-template-columns:1fr}
  .ledger-rows li .item{white-space:normal}
  .callbar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:110;
    background:var(--panel-deep);border-top:2px solid var(--rule)}
  .callbar a{flex:1;text-align:center;padding:15px 8px;font-weight:700;font-size:15px;
    color:var(--bone);text-decoration:none}
  .callbar a.solid{background:var(--molten);color:#fff}
  body{padding-bottom:52px}
}
@media (prefers-reduced-motion:reduce){
  .btn,.btn--ghost{transition:none}
}