/* Mineral Exposure — site styles. Palette from the subject: verdigris (oxidised copper) and native copper on mineral-grey paper. */
:root{
  --paper:#f4f6f5; --surface:#ffffff; --ink:#16201d; --body:#2a3531; --muted:#5d6a65; --line:#d3dcd8;
  --verdigris:#0f5c4c; --verdigris-2:#1f8a72; --copper:#b5582a; --deep:#0b2f28; --deep-fg:#e8f2ee;
  --tile:#e2e9e6; --fill:#0f5c4c;
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --w:1120px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#0f1513; --surface:#151d1a; --ink:#eef3f1; --body:#d3ddd9; --muted:#97a7a1; --line:#2b3733;
  --verdigris:#5fc6ad; --verdigris-2:#7fd3be; --copper:#e2895a; --deep:#08201b; --deep-fg:#e8f2ee;
  --tile:#1c2622; --fill:#2f8f79; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0f1513; --surface:#151d1a; --ink:#eef3f1; --body:#d3ddd9; --muted:#97a7a1; --line:#2b3733;
  --verdigris:#5fc6ad; --verdigris-2:#7fd3be; --copper:#e2895a; --deep:#08201b; --deep-fg:#e8f2ee;
  --tile:#1c2622; --fill:#2f8f79; color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--paper);color:var(--body);font:17px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--verdigris);text-underline-offset:3px}
a:hover{color:var(--verdigris-2)}
:focus-visible{outline:3px solid var(--copper);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface);padding:8px 12px;z-index:20}
.skip:focus{left:16px}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--serif);color:var(--ink);font-weight:600;letter-spacing:-.01em;line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2.2rem,4.6vw,3.6rem);font-weight:700;letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,2.6vw,2.15rem)}
.h-quiet{font-size:1.35rem}
p{margin:0 0 1em;max-width:68ch}
.note{font-size:.86rem;color:var(--muted)}
section{padding:88px 0}
.band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.two{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:start}
.intro{font-size:1.08rem;margin-bottom:2rem}

/* header */
.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px}
.mark{display:flex;align-items:center;gap:10px;font:600 1.05rem var(--serif);color:var(--ink);text-decoration:none}
.mark-tile{display:grid;place-items:center;width:30px;height:30px;border:1.5px solid var(--verdigris);border-radius:4px;font:600 .82rem var(--sans);color:var(--verdigris)}
nav{display:flex;gap:22px;align-items:center;font-size:.94rem}
nav a{color:var(--body);text-decoration:none}
nav a:hover{color:var(--verdigris)}
.nav-cta{border:1px solid var(--verdigris);color:var(--verdigris)!important;padding:6px 14px;border-radius:999px}

/* buttons */
.btn{display:inline-block;background:var(--verdigris);color:#fff;text-decoration:none;padding:12px 20px;border-radius:6px;font-weight:500;border:1px solid var(--verdigris)}
.btn:hover{background:var(--verdigris-2);color:#fff}
.btn.ghost{background:transparent;color:var(--verdigris)}
.btn.ghost:hover{background:var(--surface);color:var(--verdigris)}
.btn.light{background:#fff;color:var(--deep);border-color:#fff}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:1.6rem}

/* hero + element tiles — the one memorable device */
.hero{padding:72px 0 96px}
.hero-in{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.lede{font-size:1.14rem;color:var(--body)}
.tiles{margin:0}
.tile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.tile{position:relative;aspect-ratio:1/1;border:1.5px solid var(--ink);border-radius:3px;background:var(--surface);overflow:hidden;padding:10px 12px;display:flex;flex-direction:column}
.tile::before{content:"";position:absolute;left:0;right:0;bottom:0;height:calc(var(--share) * 1%);background:var(--fill);opacity:.16;transform-origin:bottom;animation:rise 1.4s cubic-bezier(.2,.7,.2,1) both}
.tile:nth-child(2)::before{animation-delay:.08s}.tile:nth-child(3)::before{animation-delay:.16s}.tile:nth-child(4)::before{animation-delay:.24s}.tile:nth-child(5)::before{animation-delay:.32s}.tile:nth-child(6)::before{animation-delay:.4s}
@keyframes rise{from{transform:scaleY(0)}to{transform:scaleY(1)}}
.tile::after{content:"";position:absolute;left:0;right:0;bottom:calc(var(--share) * 1%);border-top:2px solid var(--fill)}
.tile .z{position:relative;font-size:.8rem;color:var(--muted)}
.tile .sym{position:relative;font:700 clamp(2rem,4vw,3rem)/1 var(--serif);color:var(--ink);margin-top:auto}
.tile .nm{position:relative;font-size:.82rem;color:var(--body)}
.tile .pc{position:absolute;right:10px;top:8px;font-weight:600;font-size:.9rem;color:var(--verdigris)}
.tiles figcaption{font-size:.82rem;color:var(--muted);margin-top:12px;max-width:52ch}

/* timeline — a real sequence */
.timeline{list-style:none;margin:0 0 1.2rem;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:2px solid var(--ink)}
.timeline li{padding:16px 18px 0 0;position:relative}
.timeline li::before{content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;border-radius:50%;background:var(--paper);border:2px solid var(--ink)}
.timeline li:last-child::before{background:var(--copper);border-color:var(--copper)}
.timeline time{display:block;font:600 1.05rem var(--serif);color:var(--ink);margin:6px 0 4px}
.timeline p{font-size:.94rem;margin:0}

/* Q&A */
.qa{margin:1.6rem 0 0}
.qa dt{font:600 1.15rem var(--serif);color:var(--ink);margin-top:1.2rem}
.qa dd{margin:.3rem 0 0}

/* tables */
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;padding:12px 12px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{font-weight:500;color:var(--muted);font-size:.84rem;border-bottom:1.5px solid var(--ink)}
tbody th{font-weight:600;color:var(--ink)}
.n{text-align:right;white-space:nowrap}
.strong{color:var(--copper);font-weight:600}
.sample{margin:0;min-width:0;overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:4px;padding:22px 22px 10px}
.sample figcaption{font-size:.92rem;margin-bottom:10px}
.tbl{overflow-x:auto}
.price td:nth-child(3){white-space:nowrap;color:var(--muted)}
.sample tbody th{min-width:150px}

/* steps — a real sequence */
.steps{margin:0;padding-left:1.3em}
.steps li{margin:0 0 1rem;padding-left:.3em}
.steps li::marker{font:600 1rem var(--serif);color:var(--verdigris)}

/* insight banner */
.insight{background:var(--deep);color:var(--deep-fg);padding:72px 0}
.insight h2{color:#fff}
.insight-in{display:grid;grid-template-columns:2fr 1fr;gap:40px;align-items:end}
.kicker{font-size:.9rem;color:#9fd3c5;margin-bottom:.6rem}
.insight p{color:var(--deep-fg)}

/* contact */
.contact{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--verdigris);border-radius:4px;padding:28px}
.contact h2{font-size:1.5rem}
.contact-lines{font-size:1.1rem;line-height:1.9}

/* footer */
.foot{border-top:1px solid var(--line);padding:28px 0;font-size:.88rem;color:var(--muted)}
.foot-in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot p{margin:0}

/* legal page */
.legal{padding:56px 0 80px}
.legal h1{font-size:2.2rem}
.legal h2{font-size:1.3rem;margin-top:2rem}

@media (max-width:900px){
  .hero-in,.two,.insight-in{grid-template-columns:minmax(0,1fr);gap:40px}
  .timeline{grid-template-columns:1fr;border-top:0;border-left:2px solid var(--ink);padding-left:18px}
  .timeline li{padding:0 0 18px}
  .timeline li::before{left:-26px;top:10px}
  section{padding:64px 0}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  nav a:not(.nav-cta){display:none}
  .tile-grid{gap:8px}
  .sample{padding:16px 14px 6px}
  th,td{padding:10px 8px}
  .sample table{font-size:.86rem}
  .price{min-width:600px}.sample table{min-width:440px}
}
@media print{.top,.hero-actions,.skip{display:none}section{padding:28px 0}}