/* KeyContain marketing site: the landing page (index.html). Approved by the user 2026-10-09 from Study 19 (round 2, B refined).
   Vault theme tokens and component treatments are copied from design/app/app.css. */
@font-face{font-family:'IBM Plex Sans';font-weight:400 600;font-display:block;src:url(fonts/ibm-plex-sans.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-weight:400;font-display:block;src:url(fonts/ibm-plex-mono-400.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-weight:500;font-display:block;src:url(fonts/ibm-plex-mono-500.woff2) format('woff2')}

:root{
  --bg:#121417; --panel:#16191d; --raised:#1c2026;
  --line:#23262c; --line-2:#2c3037;
  --ink:#f2f3f5; --text:#d9dce1; --sub:#9aa0a9; --muted:#7d838d; --faint:#6c727c;
  --amber:#f2b544; --amber-hi:#ffc75c; --amber-ink:#1a1406; --amber-tint:#2a2414; --amber-line:#5a4a1e;
  --ok:#5fd39a; --no:#ff7a6b; --ok-bg:#16322a;
  --sans:'IBM Plex Sans',system-ui,sans-serif; --mono:'IBM Plex Mono',ui-monospace,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--amber);text-decoration:none}
a:hover{color:var(--amber-hi)}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{color:var(--ink);font-weight:600;letter-spacing:-.015em}
code{font-family:var(--mono)}
.nw{white-space:nowrap}
/* inline code chip, shaped like the API design's code (design/api/index.html), on the app's sunken code surface (app.css pre.code) */
code{font-size:.88em;background:#0f1114;border:1px solid var(--line);border-radius:4px;padding:1px 5px;color:var(--ink);overflow-wrap:anywhere}
/* Text uses the width of its column: no max-width on headings, intros or paragraphs ([_shared/ux-design.md §3]). */
.wrap{max-width:1120px;margin:0 auto;padding:0 40px}

/* buttons, as in the app (.btn and .ghost), at marketing size */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--amber);color:var(--amber-ink)!important;border:0;border-radius:7px;padding:11px 18px;font:600 15px var(--sans);cursor:pointer;white-space:nowrap;transition:background .12s}
.btn:hover{background:var(--amber-hi)}
.ghost{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--text)!important;border:1px solid var(--line-2);border-radius:7px;padding:10px 17px;font:500 15px var(--sans);cursor:pointer;white-space:nowrap;transition:background .12s}
.ghost:hover{background:#1a1d22}
.ctas{display:flex;gap:12px;flex-wrap:wrap}

/* nav */
.nav{display:flex;align-items:center;gap:28px;height:68px;position:relative}
.brand{display:flex;align-items:center;gap:9px;font-weight:600;font-size:17px;color:var(--ink)!important}
.nav .links{display:flex;gap:24px;margin-left:12px}
.nav .links a{color:var(--sub)}
.nav .links a:hover{color:var(--ink)}
.nav .right{margin-left:auto;display:flex;align-items:center;gap:18px}
.nav .right .signin{color:var(--sub)}
.nav .right .signin:hover{color:var(--ink)}
.nav .btn{padding:8px 14px;font-size:14px}
/* phone menu: a native disclosure, so it opens and closes without script */
.menu{display:none;margin-left:auto}
.menu summary{list-style:none;display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line-2);border-radius:7px;color:var(--text);cursor:pointer}
.menu summary::-webkit-details-marker{display:none}
.menu summary:hover{background:#1a1d22}
.menu[open] summary{background:var(--raised)}
.menu .panel{position:absolute;top:60px;left:0;right:0;z-index:10;background:var(--panel);border:1px solid var(--line-2);border-radius:12px;padding:8px;display:grid;box-shadow:0 20px 40px -20px #000}
.menu .panel a{color:var(--text);padding:10px 12px;border-radius:7px}
.menu .panel a:hover{background:var(--raised);color:var(--ink)}
.menu .panel .btn{margin-top:6px;justify-content:center}

/* sections */
.eyebrow{font:500 12.5px var(--mono);color:var(--amber);letter-spacing:.04em;text-transform:uppercase;margin-bottom:14px}
.sec{padding-block:88px 88px;border-top:1px solid var(--line);scroll-margin-top:0}
.sec h2{font-size:34px;line-height:1.2}
.sec h2 .accent{color:var(--amber)}
.sec .lede{color:var(--sub);font-size:17px;margin-top:14px}
.more{margin-top:24px}

/* hero */
.hero{text-align:center;padding-block:84px 0}
.hero h1{font-size:56px;line-height:1.06;letter-spacing:-.03em;margin:0 auto}
.hero p{font-size:18px;color:var(--sub);margin:20px auto 30px}
.hero .ctas{justify-content:center}
.gridshot{margin:56px auto 0;max-width:900px;text-align:left;background:var(--panel);border:1px solid var(--line-2);border-bottom:0;border-radius:14px 14px 0 0;padding:22px 24px 8px;box-shadow:0 -30px 80px -40px rgba(242,181,68,.25)}
.gridshot .gh{display:flex;align-items:baseline;gap:12px;margin-bottom:10px}
.gridshot .gh b{color:var(--ink);font-size:16px;font-weight:600}
.gridshot .gh span{color:var(--muted);font-size:13px}
.gridshot .gh em{margin-left:auto;font-style:normal;font:12px var(--mono);color:var(--faint)}
.gridwrap{overflow-x:auto}
.legend{display:flex;gap:18px;justify-content:center;margin:20px 0 0;padding-bottom:72px;color:var(--sub);font-size:14px;flex-wrap:wrap}
.legend .cell{min-width:0}
.legend > span{display:inline-flex;align-items:center;gap:8px}

/* access chips, as the app's .cell */
.cell{display:inline-block;min-width:78px;border-radius:5px;padding:3px 9px;font:500 12px var(--sans);border:1px solid var(--line-2);color:var(--muted);white-space:nowrap}
.cell.allow{background:var(--ok-bg);border-color:#245a43;color:var(--ok)}
.cell.ask{background:var(--amber-tint);border-color:var(--amber-line);color:var(--amber)}
.cell.inline{min-width:0;font-size:.82em;padding:1px 8px;vertical-align:.08em}

/* permission rows, copied from design/app/app.css (.rt, .pname, .pop, .cond, .waitl), shown read-only */
.rt{width:100%;border-collapse:collapse;table-layout:fixed;font-size:13px}
.rt col.c1{width:34%}.rt col.c2{width:160px}
.rt th{font-weight:500;color:var(--muted);text-align:left;font-size:11px;letter-spacing:.06em;text-transform:uppercase;padding:9px 8px 7px;border-bottom:1px solid var(--line)}
.rt td{padding:10px 8px;border-bottom:1px solid #1d2025;vertical-align:top}
.rt tbody tr:last-child td{border-bottom:0}
.rt td .cell{min-width:94px}
.pname{color:var(--ink);font-weight:500;overflow-wrap:anywhere}
.pop{display:block;font:11px var(--mono);color:var(--faint);margin-top:1px}
.rt .cond{font:12px var(--mono);color:var(--amber);overflow-wrap:anywhere}
.rt .any{color:var(--muted)}
.waitl{display:block;font-size:11.5px;margin-top:4px;color:var(--amber)}

/* Ask me section with the phone */
.phonesec{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.phonesec > *{min-width:0}
.phonesec .ph{display:flex;justify-content:center}
.phonesec ul{margin:22px 0 0;padding:0;list-style:none;display:grid;gap:12px}
.phonesec li{display:flex;gap:12px;align-items:baseline;color:var(--text)}
.phonesec li .cell{min-width:72px;text-align:center;flex:none}
.phone{width:300px;border-radius:40px;background:#000;border:1px solid #2c3037;padding:12px;box-shadow:0 40px 80px -40px #000}
.phone .scr{border-radius:30px;background:var(--bg);overflow:hidden;height:580px;position:relative}
.notif{margin:46px 12px 0;background:rgba(40,43,49,.95);border-radius:16px;padding:12px 14px;font-size:13px;color:var(--ink)}
.notif .t{display:flex;align-items:center;gap:8px;color:var(--sub);font-size:11.5px;margin-bottom:4px}
.notif .t b{color:var(--sub);font-weight:500}
.notif .t span:last-child{margin-left:auto}
.notif .t svg{width:16px;height:16px;display:block}
.notif strong{display:block;font-weight:600}
.notif p{color:var(--text)}
.conf{padding:18px;margin-top:16px;border-top:1px solid var(--line)}
.conf .acts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.conf .acts span{text-align:center;padding:10px;border-radius:6px;font-weight:600;font-size:14px}
.conf .acts .dec{border:1px solid #5a2a24;color:var(--no)}
.conf .acts .app{background:var(--amber);color:var(--amber-ink)}
/* confirm screen, copied from design/app/app.css (.cwho, .cop, .m, .kcp, .kcline, .kv, .kcf, .kaby) */
.cwho{display:flex;justify-content:space-between;gap:10px;color:var(--sub);font-size:12px}
.cwho b{color:var(--ink);font-weight:500}
.cop{display:flex;gap:8px;align-items:center;margin:10px 0 12px;color:var(--ink);font-size:15px;font-weight:600;flex-wrap:wrap}
.m{display:inline-block;font:600 10.5px var(--mono);padding:1px 0;border-radius:3px;width:62px;text-align:center;flex:none}
.m.POST{background:#3a2e12;color:var(--amber)}
.kcp{background:var(--panel);border:1px solid var(--line-2);border-radius:10px;padding:12px 14px;margin-bottom:12px}
.kcline{margin:0 0 10px;color:var(--ink);font-size:14px;font-weight:500;line-height:1.45}
.kv{display:grid;grid-template-columns:72px 1fr;gap:3px 12px}
.kv span:nth-child(odd){color:var(--muted);font-family:var(--sans)}
.kcf{font-size:12.5px;margin-bottom:9px;padding-top:9px;border-top:1px solid var(--line)}
.kcf span:nth-child(even){color:var(--ink)}
.kcf .muted{color:var(--muted);font-family:var(--mono);font-size:11px}
.kaby{display:flex;gap:6px;align-items:center;font-size:11.5px;color:var(--muted)}
.kaby svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:1.8;flex:none}

/* service by service */
.pairs{display:grid;margin-top:28px}
.pair{display:grid;grid-template-columns:200px 1fr 1fr;gap:24px;align-items:start;padding-block:24px 24px;border-top:1px solid var(--line)}
.pair h3{font-size:18px}
.pair .col h4{font:500 11.5px var(--mono);text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin-bottom:8px}
.pair .col p{color:var(--text);font-size:14.5px}
.pair .col.k h4{color:var(--amber)}

/* security */
.spec{margin:32px 0 0;border-top:1px solid var(--line)}
.spec div{display:grid;grid-template-columns:180px 1fr;gap:24px;padding-block:14px 14px;border-bottom:1px solid var(--line)}
.spec dt{font:500 13px/1.7 var(--mono);color:var(--sub)}
.spec dd{margin:0;color:var(--text);font-size:15px}

/* pricing */
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:24px}
.price{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:36px}
.price .card h3{font-size:16px;color:var(--sub);font-weight:500}
.price .amt{font-size:40px;font-weight:600;color:var(--ink);letter-spacing:-.02em;margin:10px 0 4px}
.price .amt small{font-size:16px;color:var(--sub);font-weight:400;letter-spacing:0}
.price ul{margin:16px 0 0;padding:0 0 0 18px;color:var(--text);display:grid;gap:6px}
/* capacity examples table (Study 20 variant C) */
.price table{margin-top:16px;border-collapse:collapse;width:100%;font-size:14px}
.price th{color:var(--muted);font-weight:500;font-size:12px;letter-spacing:.06em;text-transform:uppercase;text-align:left;padding:0 8px 6px 0;border-bottom:1px solid var(--line)}
.price td{padding:7px 8px 7px 0;border-bottom:1px solid #1d2025;color:var(--text)}
.price td:last-child,.price th:last-child{text-align:right;padding-right:0}

/* services */
.svcgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:36px}
.svcgrid a{display:flex;align-items:center;gap:12px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 20px;color:var(--ink);font-weight:500;transition:border-color .12s,background .12s}
/* Service logos, one tone, taking the brand's colour (--brand on the tile) under the pointer (Study 34 C, user decision 2026-10-21). Simple Icons (CC0) and Plaid's own mark, inline SVG. */
.svcgrid .lg{width:20px;height:20px;flex:none;fill:var(--sub);color:var(--sub);transition:fill .12s,color .12s}
.svcgrid a:hover .lg{fill:var(--brand);color:var(--brand)}
.svcgrid a:hover{border-color:var(--line-2);background:var(--raised);color:var(--ink)}
/* Generic HTTP stays last, on a row of its own and a little apart, however many services there are */
.svcgrid .generic{grid-column:1 / -1;justify-self:start;min-width:calc(25% - 12px);margin-top:12px}

/* closing call to action */
.final{padding-block:96px 96px;text-align:center;border-top:1px solid var(--line)}
.final h2{font-size:38px}
.final h2 + .ctas{margin-top:28px}
.final .ctas{justify-content:center}

/* footer */
.foot{border-top:1px solid var(--line);padding-block:48px 40px;color:var(--muted);font-size:14px}
.foot .cols{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:28px}
.foot h4{color:var(--sub);font-weight:500;font-size:13px;margin-bottom:12px}
.foot .cols a{display:block;color:var(--muted);margin-bottom:8px}
.foot .cols a:hover{color:var(--ink)}
/* the footer's block link rule must not undo the brand's flex layout (mark and name centred, 9px apart, as in the nav) */
.foot .cols a.brand{display:flex;margin-bottom:0}
.foot .tagline{margin-top:12px}
.foot .base{margin-top:36px;color:var(--faint);font-size:13px}

/* service pages (services/*.html, layout A of Study 22) */
.hero .eyebrow{margin-bottom:14px}
/* the scope column (Zones, Repositories, Accounts, Folders...) is third, Only when always last */
.rt.scoped col.c1{width:30%}.rt.scoped col.c2{width:150px}.rt.scoped col.c3{width:150px}
.rt .se+.se{margin-top:4px}
.plist{border-collapse:collapse;width:100%;margin-top:32px;font-size:14px}
.plist th{color:var(--muted);font-weight:500;font-size:12px;letter-spacing:.06em;text-transform:uppercase;text-align:left;padding:0 8px 8px 0;border-bottom:1px solid var(--line)}
.plist td{padding:9px 8px 9px 0;border-bottom:1px solid #1d2025;color:var(--ink);overflow-wrap:anywhere}
.plist .more-rows{color:var(--sub)}

/* phone */
@media (max-width:720px){
  .wrap{padding:0 20px}
  .nav{height:60px}
  .nav .links,.nav .right{display:none}
  .menu{display:block}
  .sec{padding-block:60px 60px}
  .sec h2{font-size:27px}
  .sec .lede{font-size:16px}
  .hero{padding-block:44px 0}
  .hero h1{font-size:38px}
  .hero p{font-size:16.5px}
  .gridshot{padding:16px 14px 4px}
  .gridshot .gh em{display:none}
  .rt col.c1{width:auto}.rt col.c2{width:110px}.rt col.c3{width:38%}
  .rt td .cell{min-width:0}
  .rt.scoped col.c1{width:auto}.rt.scoped col.c2{width:96px}.rt.scoped col.c3{width:80px}.rt.scoped col.c4{width:34%}
  .phonesec{grid-template-columns:1fr;gap:28px}
  .phone{transform:scale(.9);transform-origin:top center;margin-bottom:-58px}
  .pair{grid-template-columns:1fr;gap:10px}
  .price,.foot .cols,.spec div{grid-template-columns:1fr}
  .spec div{gap:4px}
  .svcgrid{grid-template-columns:1fr 1fr}
  /* every tile two lines tall, so a wrapped name doesn't make its row taller than the others (user decision 2026-10-21: "Even rows") */
  .svcgrid a{min-height:calc(3.2em + 38px)}
  .svcgrid .generic{min-width:calc(50% - 8px)}
  .final{padding-block:64px 64px}
  .final h2{font-size:29px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}html{scroll-behavior:auto}}