/* free3cardpoker.fun site shell: deep casino red-black and felt gold, built like freevideopoker.fun */
:root{--bg:#0e0708;--surface:#1a0c0e;--surface-2:#231114;--line:rgba(255,236,220,.1);--ink:#f6ece6;--muted:#c1a9a3;--acc:#e6c25c;--acc2:#f3d27a;--acc-ink:#1d1503;--max:1080px;--hdr:60px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--acc2)}
a:hover{color:#fff}
img,svg{display:block;max-width:100%;height:auto}
.wrap{max-width:var(--max);margin:0 auto;padding:0 max(20px,env(safe-area-inset-left,0px)) 0 max(20px,env(safe-area-inset-right,0px))}
/* header, same lockup as the machine */
.hdr{position:sticky;top:0;z-index:30;background:rgba(14,7,8,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
.hdr .wrap{display:flex;align-items:center;gap:12px;height:var(--hdr)}
.logo{display:flex;align-items:center;gap:9px;color:#fff;text-decoration:none;font:800 18px/1 Inter,sans-serif;letter-spacing:-.02em}
.logo i{font-style:normal;color:var(--acc)}
.mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;color:var(--acc-ink);font:700 17px/1 Georgia,serif;background:radial-gradient(circle at 50% 50%,#fff3c4 0 34%,var(--acc) 35% 64%,#b77a05 65%);box-shadow:0 0 0 2px rgba(255,182,39,.25);flex:none}
.nav{display:flex;gap:2px;margin-left:auto;list-style:none;padding:0;margin-block:0}
.nav a{display:block;padding:8px 10px;border-radius:999px;color:var(--muted);text-decoration:none;font:600 14px/1 Inter,sans-serif}
.nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
@media (max-width:640px){.nav .hide-s{display:none}.nav a{font-size:15px}}
/* doc */
.doc{max-width:760px;padding-top:28px;padding-bottom:60px}
.crumb{font-size:13px;color:var(--muted);margin:0 0 8px}
.crumb a{color:var(--muted);text-decoration:none}
h1{font-size:clamp(2rem,5vw,2.9rem);font-weight:800;letter-spacing:-.02em;line-height:1.1;margin:0 0 14px;text-wrap:balance}
h2{font-size:clamp(1.35rem,3vw,1.7rem);font-weight:800;letter-spacing:-.01em;margin:2.1em 0 .5em;text-wrap:balance}
h3{font-size:1.1rem;font-weight:800;margin:1.6em 0 .4em}
p{margin:0 0 1em}
.lead{font-size:1.15rem;color:var(--muted);max-width:62ch}
ul,ol{padding-left:22px}
li{margin-bottom:8px}
strong{color:#fff}
table.list{border-collapse:collapse;width:100%;font-size:.95rem;margin:10px 0 18px;background:var(--surface);border-radius:12px;overflow:hidden}
table.list th,table.list td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
table.list th{color:var(--muted);font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;background:var(--surface-2)}
table.list.num td:not(:first-child),table.list.num th:not(:first-child){text-align:right;font-variant-numeric:tabular-nums}
table.list tr:last-child td{border-bottom:0}
@media (max-width:560px){table.list{display:block;overflow-x:auto;white-space:nowrap}}
.doc-cta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:34px 0;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:16px}
.doc-cta span{color:var(--muted);font-size:.95rem}
.go{display:inline-block;background:var(--acc);color:var(--acc-ink);font-weight:800;text-decoration:none;padding:12px 20px;border-radius:12px;box-shadow:0 4px 0 #8a5a04}
.go:hover{background:var(--acc2);color:var(--acc-ink)}
details{border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:0 20px;margin-bottom:12px}
summary{cursor:pointer;padding:14px 0;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--acc);font-weight:800}
details[open] summary::after{content:"–"}
details p{color:var(--muted);padding-bottom:16px}
.more{font-size:.9rem;color:var(--muted);margin-top:36px;line-height:1.9}
/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:40px;padding:40px 0 30px;color:var(--muted);font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.site-footer h4{color:#fff;margin:0 0 10px;font-size:.95rem}
.site-footer ul{list-style:none;padding:0;margin:0 0 18px}
.site-footer li{margin-bottom:6px}
.site-footer a{color:var(--muted);text-decoration:none}
.site-footer a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:26px;padding-top:18px;border-top:1px solid var(--line);font-size:.85rem}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.footer-grid{grid-template-columns:1fr}}
/* home page: the machine in the page, then the boards and the rest */
.intro{padding-top:30px}
.intro h1{margin:0 0 6px;font-size:clamp(1.6rem,3.5vw,2.2rem)}
.intro .lead{margin:0;max-width:70ch}
.stagesec{padding-top:12px}
.stagesec .wrap{max-width:1440px}
.home{max-width:1080px;padding-top:34px}
.home h2{margin-top:0}
.home .sub{color:var(--muted);margin:-4px 0 18px}
.boards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.board{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 16px}
.board h3{margin:0 0 8px;font-size:1rem}
.board table{width:100%;border-collapse:collapse;font-size:.95rem}
.board td{padding:6px 4px;border-top:1px solid var(--line)}
.board td:first-child{color:var(--muted);width:30px}
.board td:last-child{text-align:right;font-family:"JetBrains Mono",monospace;font-weight:800;color:var(--acc2)}
.board tr:first-child td{border-top:0}
.steps li{margin-bottom:10px}
.steps b{color:#fff}
.gamecards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gamecard{position:relative;aspect-ratio:2.15;border-radius:16px;overflow:hidden;background:#0a1a5a center/cover no-repeat;border:2px solid rgba(255,255,255,.12);text-decoration:none;color:#fff;display:flex;align-items:flex-end}
.gamecard b,.gamecard span{position:relative}
.gamecard::before{content:"";position:absolute;inset:0;background:linear-gradient(transparent 35%,rgba(0,0,0,.88))}
.gamecard b{display:block;font-size:1.15rem;padding:0 14px}
.gamecard span{display:block;font-size:.85rem;color:#ddd;padding:4px 14px 12px}
.gamecard:hover{border-color:var(--acc)}
.gamecard > *{z-index:1}
.gamecard{flex-direction:column;align-items:stretch;justify-content:flex-end}
.learngrid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.learncard{display:block;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px;text-decoration:none;color:var(--ink)}
.learncard b{display:block;margin-bottom:4px}
.learncard span{color:var(--muted);font-size:.9rem}
.learncard:hover{border-color:var(--acc);color:var(--ink)}
@media (max-width:860px){.boards{grid-template-columns:1fr}.gamecards{grid-template-columns:1fr}}
@media (max-width:640px){.learngrid{grid-template-columns:1fr}.stagesec .wrap{padding:0}.stagewrap{border-radius:0}}
@media (max-width:640px){.stagesec{padding-top:0}.intro .lead{font-size:.98rem}.home{padding-top:26px}}
.learncard span{display:none}
/* share + embed: the row under the machine, the embed code section, the copy toast, and the /embed page */
.actions{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;padding-block:14px 0}
.pill{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:700 15px/1 Inter,sans-serif;text-decoration:none;cursor:pointer}
.pill:hover{border-color:var(--acc);color:#fff}
.pill svg{width:18px;height:18px;color:var(--acc)}
.embedsec{display:grid;gap:16px;align-items:center}
.embedsec h2{margin-top:0}
.embedsec .lead{margin-bottom:16px}
.code{margin:0;min-width:0;overflow-x:auto;background:#050507;border:1px solid var(--line);border-radius:14px;padding:14px;font:12.5px/1.6 "JetBrains Mono",ui-monospace,Menlo,monospace;color:var(--acc2);white-space:pre-wrap;word-break:break-all}
@media (min-width:860px){.embedsec{grid-template-columns:1fr 1fr}}
.toast{position:fixed;left:50%;bottom:calc(18px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);z-index:200;background:#fff;color:#111;padding:10px 16px;border-radius:12px;font:700 14px Inter,sans-serif;box-shadow:0 8px 30px rgba(0,0,0,.4)}
.toast[hidden]{display:none}
body.embed{background:#0b0b0f;margin:0;overflow:hidden}
body.embed .stagewrap{border-radius:0}
.embed-foot{text-align:center;margin:0;height:34px;line-height:34px;font:700 13px/34px Inter,sans-serif}
.embed-foot a{color:var(--acc2);text-decoration:none}
/* game pages + new learn pages: one board, two machine cards, inline card faces, chart figures */
.boards.one{grid-template-columns:1fr;max-width:460px}
.gamecards.two{grid-template-columns:repeat(2,1fr)}
@media (max-width:640px){.gamecards.two{grid-template-columns:1fr}}
.hand{display:inline-flex;gap:3px;white-space:nowrap}
.hand i{font-style:normal;display:inline-grid;place-items:center;min-width:34px;height:44px;padding:0 3px;border-radius:6px;background:#fff;color:#111;font:800 14px/1 Inter,sans-serif;box-shadow:0 1px 0 rgba(0,0,0,.4)}
.hand i.r{color:#c8102e}
table.list.hands td{vertical-align:middle}
figure.chart{margin:22px 0;max-width:100%}
figure.chart img{width:100%;height:auto;border-radius:14px;border:1px solid var(--line)}
figure.chart figcaption{color:var(--muted);font-size:.85rem;margin-top:6px}
.intro .crumb{margin-bottom:6px}
@media (max-width:560px){table.list.hands{white-space:normal}table.list.hands th:nth-child(4),table.list.hands td:nth-child(4){display:none}table.list.hands td,table.list.hands th{padding:8px 6px}.hand{gap:2px}.hand i{min-width:27px;height:36px;padding:0 2px;font-size:11.5px;border-radius:4px}}
figure.chart a{display:block}
/* free3cardpoker: the header mark is the felt logo's gold chip with a 3 */
.mark{background:radial-gradient(circle at 50% 50%,#4a0d12 0 52%,#e6c25c 53% 60%,#4a0d12 61% 66%,#e6c25c 67%);color:#f3d27a;font:900 17px/1 "Playfair Display",Georgia,serif;font-variant-numeric:lining-nums;box-shadow:0 0 0 2px rgba(230,194,92,.3)}
.logo i{color:var(--acc)}
h1,h2,.intro h1{font-family:"Playfair Display",Georgia,serif;letter-spacing:0}
.stagesec .wrap{max-width:1500px}
.tablewrap{max-width:100%}
@media (max-width:640px){.stagesec .wrap{padding:0}.tablewrap{border-radius:0}}
.board{max-width:520px}
.boards{display:block}
body.embed{background:#0e0708;margin:0;overflow:hidden}
body{font-variant-numeric:lining-nums}
/* plain facts under the intro: what the game is, in one glance, for people and for answer engines */
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0 0;padding:0;list-style:none}
.facts li{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 14px}
.facts b{display:block;color:var(--acc2);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:3px}
.facts span{color:var(--ink);font-size:.95rem}
@media (max-width:860px){.facts{grid-template-columns:1fr 1fr}}