/* e.casino — Casino Math Academy · design system
   Original styles © e.casino. Tokens first, then base, layout, components, labs. */

:root{
  --bg:#0a0f1c; --bg-2:#0d1426; --surface:#111a2e; --surface-2:#16223b; --surface-3:#1d2b49;
  --border:#24324f; --border-2:#2f4064;
  --text:#e9edf6; --muted:#9aa7c2; --faint:#6f7d9b;
  --brand:#1fd187; --brand-2:#11a86a; --brand-ink:#04140c;
  --gold:#f5c65b; --gold-2:#e0a92e; --gold-ink:#1d1402;
  --red:#ff5d5d; --blue:#6c9bff; --violet:#a78bfa;
  --felt:#0b3b2a;
  --shadow:0 10px 30px rgba(0,0,0,.35); --shadow-sm:0 2px 10px rgba(0,0,0,.25);
  --radius:16px; --radius-sm:10px; --radius-xs:7px;
  --wrap:1200px; --gutter:clamp(16px,4vw,32px);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --display:'Sora','Inter',system-ui,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:dark;
}
:root[data-theme="light"]{
  --bg:#f6f8fc; --bg-2:#eef2f9; --surface:#ffffff; --surface-2:#f2f5fb; --surface-3:#e7edf7;
  --border:#dde4f0; --border-2:#c9d3e5;
  --text:#0d1630; --muted:#4f5d7a; --faint:#7a87a3;
  --brand:#0b9b5e; --brand-2:#08804d; --brand-ink:#ffffff;
  --gold:#b98510; --gold-2:#9a6d08; --gold-ink:#ffffff;
  --red:#d93636; --blue:#2f63e0; --violet:#6d4fd8; --felt:#0f5a3f;
  --shadow:0 10px 30px rgba(16,30,60,.10); --shadow-sm:0 2px 10px rgba(16,30,60,.08);
  color-scheme:light;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--text);font:400 17px/1.65 var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg,canvas,video{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{font-family:var(--display);line-height:1.18;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2rem,4.6vw,3.35rem);font-weight:800}
h2{font-size:clamp(1.45rem,2.8vw,2.05rem);font-weight:700}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1.05em}
small{font-size:.85em}
hr{border:0;border-top:1px solid var(--border);margin:2rem 0}
code,kbd{font-family:var(--mono);font-size:.9em;background:var(--surface-2);border:1px solid var(--border);border-radius:6px;padding:.1em .4em}
::selection{background:var(--brand);color:var(--brand-ink)}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--gold);color:var(--gold-ink);padding:8px 14px;border-radius:8px;font-weight:700}
.skip:focus{left:8px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.narrow{max-width:780px}
.section{padding:clamp(48px,7vw,88px) 0}
.section-tight{padding:clamp(32px,5vw,56px) 0}
.section-alt{background:var(--bg-2);border-block:1px solid var(--border)}
.center{text-align:center}
.muted{color:var(--muted)}
.faint{color:var(--faint)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font:700 .78rem/1 var(--font);letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:2px;background:currentColor;border-radius:2px}
.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--muted);max-width:720px}
.center .lead{margin-inline:auto}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr))}
.stack>*+*{margin-top:14px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.between{justify-content:space-between}
.mt0{margin-top:0}.mt1{margin-top:12px}.mt2{margin-top:24px}.mt3{margin-top:40px}
.mb0{margin-bottom:0}

/* Top contact bar (every page) */
.topbar{background:linear-gradient(90deg,var(--gold-2),var(--gold));color:var(--gold-ink);font:600 .86rem/1.35 var(--font);text-align:center}
.topbar a{display:block;color:inherit;padding:8px var(--gutter)}
.topbar a:hover{text-decoration:underline}
:root[data-theme="light"] .topbar{color:#fff}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid var(--border)}
.nav-row{display:flex;align-items:center;gap:18px;min-height:66px}
.logo{display:flex;align-items:baseline;gap:10px;color:var(--text);font:800 1.45rem/1 var(--display);letter-spacing:-.03em;white-space:nowrap}
.logo:hover{text-decoration:none}
.logo b{color:var(--brand)}
.logo small{font:600 .7rem/1 var(--font);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.primary{margin-left:auto}
.primary ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.primary a{display:block;padding:8px 12px;border-radius:999px;color:var(--muted);font-weight:600;font-size:.95rem}
.primary a:hover,.primary a[aria-current="page"]{color:var(--text);background:var(--surface-2);text-decoration:none}
.nav-actions{display:flex;gap:8px;align-items:center}
.icon-btn{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer}
.icon-btn:hover{border-color:var(--border-2);background:var(--surface-2)}
.icon-btn svg{width:19px;height:19px}
.menu-btn{display:none}
.mobile-nav{display:none;border-top:1px solid var(--border);padding:12px var(--gutter) 20px;background:var(--bg)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:12px 4px;border-bottom:1px solid var(--border);color:var(--text);font-weight:600}
@media (max-width:1020px){.primary{display:none}.menu-btn{display:inline-grid}.nav-actions{margin-left:auto}.logo small{display:none}}
@media (max-width:420px){.nav-actions .btn{display:none}}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 22px;border-radius:999px;border:1px solid transparent;font:700 .98rem/1 var(--font);cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,background .2s;text-decoration:none!important;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand);color:var(--brand-ink);box-shadow:0 8px 24px color-mix(in srgb,var(--brand) 35%,transparent)}
.btn-primary:hover{background:color-mix(in srgb,var(--brand) 88%,#fff)}
.btn-gold{background:var(--gold);color:var(--gold-ink);box-shadow:0 8px 24px color-mix(in srgb,var(--gold) 30%,transparent)}
.btn-ghost{background:transparent;border-color:var(--border-2);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2)}
.btn-sm{padding:9px 16px;font-size:.88rem}
.btn-lg{padding:16px 28px;font-size:1.05rem}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* Hero */
.hero{position:relative;overflow:hidden;padding:clamp(56px,8vw,104px) 0 clamp(48px,7vw,88px)}
.hero::before{content:"";position:absolute;inset:-30% -10% auto;height:120%;background:radial-gradient(60% 50% at 20% 20%,color-mix(in srgb,var(--brand) 22%,transparent),transparent 70%),radial-gradient(45% 45% at 85% 10%,color-mix(in srgb,var(--gold) 18%,transparent),transparent 70%);pointer-events:none;z-index:-1}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
@media (max-width:920px){.hero-grid{grid-template-columns:1fr}}
.hero h1 .hl{background:linear-gradient(92deg,var(--brand),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 22px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 18px;color:var(--muted);font-size:.9rem;font-weight:600}
.trust-row span{display:inline-flex;gap:7px;align-items:center}
.trust-row span::before{content:"✓";color:var(--brand);font-weight:800}
.page-hero{padding:clamp(40px,6vw,72px) 0 clamp(28px,4vw,44px);border-bottom:1px solid var(--border);background:radial-gradient(70% 120% at 0% 0%,color-mix(in srgb,var(--brand) 12%,transparent),transparent 60%)}
.page-hero .lead{margin-bottom:0}

/* Cards */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);position:relative}
.card h3{margin-bottom:.35em}
.card p:last-child{margin-bottom:0}
.card-link{display:flex;flex-direction:column;color:var(--text);transition:transform .2s,border-color .2s,box-shadow .2s}
.card-link:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--brand) 55%,var(--border));box-shadow:var(--shadow);text-decoration:none}
.card-link .go{margin-top:auto;padding-top:14px;color:var(--brand);font-weight:700;font-size:.92rem}
.card-icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:1.5rem;background:var(--surface-2);border:1px solid var(--border);margin-bottom:16px}
.card-feature{background:linear-gradient(160deg,color-mix(in srgb,var(--brand) 14%,var(--surface)),var(--surface) 55%)}
.card-gold{background:linear-gradient(160deg,color-mix(in srgb,var(--gold) 16%,var(--surface)),var(--surface) 55%);border-color:color-mix(in srgb,var(--gold) 35%,var(--border))}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font:700 .72rem/1.2 var(--font);letter-spacing:.06em;text-transform:uppercase;background:var(--surface-2);border:1px solid var(--border);color:var(--muted)}
.badge-brand{background:color-mix(in srgb,var(--brand) 16%,transparent);border-color:color-mix(in srgb,var(--brand) 40%,transparent);color:var(--brand)}
.badge-gold{background:color-mix(in srgb,var(--gold) 16%,transparent);border-color:color-mix(in srgb,var(--gold) 40%,transparent);color:var(--gold)}
.badge-red{background:color-mix(in srgb,var(--red) 14%,transparent);border-color:color-mix(in srgb,var(--red) 40%,transparent);color:var(--red)}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.stat{font:800 2.1rem/1 var(--display);letter-spacing:-.03em}
.stat-label{color:var(--muted);font-size:.88rem;margin-top:6px}

/* Edge meter (hero visual) */
.edge-meter{background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:24px;box-shadow:var(--shadow)}
.edge-meter header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:10px}
.edge-meter h2{font-size:1.05rem;margin:0}
.meter-row{display:grid;grid-template-columns:minmax(120px,160px) 1fr 64px;gap:12px;align-items:center;margin:12px 0;font-size:.92rem}
.meter-bar{height:12px;border-radius:999px;background:var(--surface-3);overflow:hidden}
.meter-bar i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--brand),var(--gold));width:0;transition:width 1s cubic-bezier(.2,.8,.2,1)}
.meter-row b{text-align:right;font-variant-numeric:tabular-nums}
.edge-meter .controls{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;padding-top:16px;border-top:1px dashed var(--border)}
.edge-meter label{font-size:.82rem;color:var(--muted);display:flex;flex-direction:column;gap:4px;flex:1;min-width:120px}

/* Playing cards (CSS only) */
.pcard{width:64px;height:90px;border-radius:9px;background:#fdfdfb;color:#111;display:inline-flex;flex-direction:column;justify-content:space-between;padding:6px 7px;font:800 1.15rem/1 var(--display);box-shadow:0 6px 16px rgba(0,0,0,.35);border:1px solid #d9d9d2;position:relative;user-select:none}
.pcard .s{font-size:1.5rem;align-self:center;line-height:1}
.pcard .r2{align-self:flex-end;transform:rotate(180deg)}
.pcard.red{color:#c8102e}
.pcard.back{background:repeating-linear-gradient(45deg,var(--brand-2) 0 6px,var(--felt) 6px 12px);border:3px solid #fff}
.pcard.deal{animation:deal .35s ease both}
@keyframes deal{from{opacity:0;transform:translateY(-18px) rotate(-6deg)}to{opacity:1;transform:none}}
.hand{display:flex;gap:8px;flex-wrap:wrap;min-height:92px}
.felt{background:radial-gradient(120% 90% at 50% 0%,color-mix(in srgb,var(--felt) 85%,#1fd18733),var(--felt));border:1px solid color-mix(in srgb,var(--brand) 25%,#000);border-radius:22px;padding:22px;color:#eafff4;box-shadow:inset 0 0 60px rgba(0,0,0,.35)}
.felt .muted{color:#b6dcc8}

/* Article layout */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
@media (max-width:1020px){.article-layout{grid-template-columns:1fr}.sidebar{display:none}}
.breadcrumb{display:flex;flex-wrap:wrap;gap:6px;font-size:.86rem;color:var(--muted);margin-bottom:18px;list-style:none;padding:0}
.breadcrumb li+li::before{content:"/";margin-right:6px;color:var(--faint)}
.breadcrumb a{color:var(--muted)}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 16px;color:var(--muted);font-size:.9rem;margin-top:16px}
.prose{font-size:1.06rem}
.prose h2{margin-top:2.1em;padding-top:.2em}
.prose h3{margin-top:1.6em}
.prose ul,.prose ol{padding-left:1.3em;margin:0 0 1.1em}
.prose li{margin:.35em 0}
.prose .lede{font-size:1.2rem;color:var(--text);border-left:4px solid var(--brand);padding-left:16px}
.prose blockquote{margin:1.4em 0;padding:14px 20px;border-left:4px solid var(--gold);background:var(--surface);border-radius:0 12px 12px 0;color:var(--muted)}
.prose a{text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--brand) 45%,transparent);text-underline-offset:3px}
.callout{border:1px solid var(--border);background:var(--surface);border-left:4px solid var(--blue);border-radius:12px;padding:16px 18px;margin:1.5em 0}
.callout.tip{border-left-color:var(--brand)}
.callout.warn{border-left-color:var(--red)}
.callout.math{border-left-color:var(--gold)}
.callout p:last-child{margin:0}
.formula{font:600 1.02rem/1.5 var(--mono);background:var(--surface-2);border:1px dashed var(--border-2);border-radius:12px;padding:16px 18px;margin:1.4em 0;overflow-x:auto;white-space:pre-wrap}
.takeaways{background:linear-gradient(160deg,color-mix(in srgb,var(--brand) 12%,var(--surface)),var(--surface));border:1px solid color-mix(in srgb,var(--brand) 35%,var(--border));border-radius:var(--radius);padding:20px 22px;margin:26px 0}
.takeaways h2{font-size:1.05rem;margin:0 0 10px;padding:0}
.takeaways ul{margin:0;padding-left:1.2em}
.toc{font-size:.92rem}
.toc ol{list-style:none;padding:0;margin:0;border-left:2px solid var(--border)}
.toc a{display:block;padding:6px 0 6px 14px;margin-left:-2px;border-left:2px solid transparent;color:var(--muted)}
.toc a.active,.toc a:hover{color:var(--text);border-left-color:var(--brand);text-decoration:none}
.toc-inline{display:none}
@media (max-width:1020px){.toc-inline{display:block}}
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.sidebar .card{padding:20px}
.share{display:flex;gap:8px;flex-wrap:wrap}
.author-box{display:flex;gap:16px;align-items:flex-start}
.author-avatar{flex:0 0 52px;height:52px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--gold));color:#05130c;font:800 1.3rem/1 var(--display)}

/* Tables */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:14px;margin:1.4em 0;background:var(--surface)}
table.data{width:100%;border-collapse:collapse;font-size:.95rem;font-variant-numeric:tabular-nums}
table.data caption{caption-side:top;text-align:left;padding:12px 14px;font-weight:700;color:var(--muted);font-size:.86rem;letter-spacing:.04em;text-transform:uppercase}
table.data th,table.data td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}
table.data thead th{background:var(--surface-2);font-weight:700;font-size:.85rem;white-space:nowrap}
table.data tbody tr:hover{background:color-mix(in srgb,var(--surface-2) 70%,transparent)}
table.data tr:last-child td{border-bottom:0}
.strat-table td,.strat-table th{text-align:center!important;padding:7px 4px!important;font-weight:700;min-width:34px}
.strat-table td.H{background:color-mix(in srgb,var(--red) 22%,transparent)}
.strat-table td.S{background:color-mix(in srgb,var(--brand) 24%,transparent)}
.strat-table td.D{background:color-mix(in srgb,var(--blue) 26%,transparent)}
.strat-table td.P{background:color-mix(in srgb,var(--gold) 30%,transparent)}
.strat-table td.hit-cell{outline:3px solid var(--gold);outline-offset:-3px}

/* FAQ / accordion */
.faq details{border:1px solid var(--border);border-radius:14px;background:var(--surface);margin:10px 0;overflow:hidden}
.faq summary{cursor:pointer;padding:16px 50px 16px 18px;font-weight:700;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--brand);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details>div{padding:0 18px 16px;color:var(--muted)}

/* Forms */
.form{display:grid;gap:14px}
.form-row{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr))}
.field{display:flex;flex-direction:column;gap:6px}
.field label,.label{font-weight:600;font-size:.9rem}
.field .hint{font-size:.8rem;color:var(--faint)}
input,select,textarea{font:inherit;font-size:1rem;color:var(--text);background:var(--surface-2);border:1px solid var(--border-2);border-radius:var(--radius-sm);padding:12px 14px;width:100%;transition:border-color .15s,box-shadow .15s}
textarea{min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 18%,transparent)}
input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--brand)}
input[type=range]{padding:0;background:transparent;border:0;accent-color:var(--brand)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:var(--muted)}
.check input{margin-top:4px}
.hp{position:absolute!important;left:-5000px!important;opacity:0}
.form-status{border-radius:12px;padding:14px 16px;font-weight:600;display:none}
.form-status.ok{display:block;background:color-mix(in srgb,var(--brand) 14%,transparent);border:1px solid color-mix(in srgb,var(--brand) 40%,transparent);color:var(--text)}
.form-status.err{display:block;background:color-mix(in srgb,var(--red) 12%,transparent);border:1px solid color-mix(in srgb,var(--red) 40%,transparent)}
.invalid{border-color:var(--red)!important}
.inline-form{display:flex;gap:10px;flex-wrap:wrap}
.inline-form input{flex:1 1 220px}
.choice-grid{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(min(100%,190px),1fr))}
.choice{position:relative}
.choice input{position:absolute;opacity:0;inset:0}
.choice span{display:flex;flex-direction:column;gap:4px;height:100%;padding:14px 16px;border:1px solid var(--border-2);border-radius:14px;background:var(--surface-2);cursor:pointer;font-weight:700;transition:border-color .15s,background .15s}
.choice span small{font-weight:500;color:var(--muted)}
.choice input:checked+span{border-color:var(--brand);background:color-mix(in srgb,var(--brand) 14%,var(--surface-2));box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 18%,transparent)}
.choice input:focus-visible+span{outline:3px solid var(--gold)}
.steps{display:flex;gap:8px;margin-bottom:18px}
.steps i{flex:1;height:6px;border-radius:99px;background:var(--surface-3)}
.steps i.on{background:linear-gradient(90deg,var(--brand),var(--gold))}
.step{display:none}
.step.active{display:grid;gap:14px;animation:fade .3s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* Bands & CTAs */
.band{border-radius:24px;padding:clamp(28px,5vw,48px);border:1px solid var(--border);background:linear-gradient(135deg,color-mix(in srgb,var(--brand) 16%,var(--surface)),var(--surface) 60%);display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center}
.band.gold{background:linear-gradient(135deg,color-mix(in srgb,var(--gold) 18%,var(--surface)),var(--surface) 60%);border-color:color-mix(in srgb,var(--gold) 30%,var(--border))}
@media (max-width:860px){.band{grid-template-columns:1fr}}
.rg-strip{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px 18px;display:flex;gap:14px;align-items:center;flex-wrap:wrap;font-size:.92rem;color:var(--muted)}
.rg-strip strong{color:var(--text)}
.notice{border:1px dashed var(--border-2);border-radius:12px;padding:12px 14px;font-size:.88rem;color:var(--muted);background:var(--surface)}
.sticky-cta{position:fixed;left:12px;right:12px;bottom:12px;z-index:40;display:none;gap:10px;padding:10px;border-radius:16px;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(12px);border:1px solid var(--border);box-shadow:var(--shadow)}
.sticky-cta .btn{flex:1}
@media (max-width:760px){.sticky-cta.show{display:flex}}

/* Slide-in & modal */
.slidein{position:fixed;right:18px;bottom:18px;z-index:60;width:min(380px,calc(100vw - 36px));background:var(--surface);border:1px solid var(--border-2);border-radius:18px;padding:20px;box-shadow:var(--shadow);transform:translateY(140%);transition:transform .45s cubic-bezier(.2,.8,.2,1)}
.slidein.show{transform:none}
.slidein .x{position:absolute;right:10px;top:10px}
.modal{position:fixed;inset:0;z-index:80;display:none;align-items:flex-start;justify-content:center;padding:10vh 16px 16px;background:rgba(3,6,14,.6);backdrop-filter:blur(6px)}
.modal.open{display:flex}
.modal-box{width:min(680px,100%);background:var(--surface);border:1px solid var(--border-2);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.search-input{border:0;border-bottom:1px solid var(--border);border-radius:0;font-size:1.15rem;padding:18px 20px;background:var(--surface)}
.search-input:focus{box-shadow:none}
.search-results{max-height:55vh;overflow:auto;padding:8px}
.search-results a{display:block;padding:12px 14px;border-radius:12px;color:var(--text)}
.search-results a:hover,.search-results a.sel{background:var(--surface-2);text-decoration:none}
.search-results small{display:block;color:var(--muted)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(150%);background:var(--text);color:var(--bg);padding:12px 18px;border-radius:12px;font-weight:600;z-index:90;transition:transform .3s}
.toast.show{transform:translateX(-50%)}

/* Video facade */
.video-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.yt{position:relative;aspect-ratio:16/9;background:#000 center/cover no-repeat;cursor:pointer;border:0;width:100%;padding:0;display:block}
.yt::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.55))}
.yt .play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:68px;height:48px;border-radius:14px;background:rgba(220,0,0,.92);display:grid;place-items:center;z-index:2;transition:transform .2s}
.yt:hover .play{transform:translate(-50%,-50%) scale(1.08)}
.yt .play::before{content:"";border-style:solid;border-width:10px 0 10px 17px;border-color:transparent transparent transparent #fff;margin-left:4px}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-card .body{padding:16px 18px 18px}
.video-card h3{font-size:1rem;margin-bottom:6px}

/* Filters / tabs */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}
.chip{padding:8px 14px;border-radius:999px;border:1px solid var(--border-2);background:var(--surface);color:var(--muted);font-weight:600;font-size:.88rem;cursor:pointer}
.chip.on,.chip:hover{color:var(--text);border-color:var(--brand);background:color-mix(in srgb,var(--brand) 12%,var(--surface))}
.az{display:flex;flex-wrap:wrap;gap:6px;margin:16px 0}
.az a{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--surface);border:1px solid var(--border);color:var(--text);font-weight:700}
.glossary dl{margin:0}
.glossary dt{font:700 1.08rem/1.3 var(--display);margin-top:18px;scroll-margin-top:100px}
.glossary dd{margin:6px 0 0;color:var(--muted)}
.glossary .letter{font:800 2rem/1 var(--display);color:var(--brand);margin:36px 0 4px;border-bottom:1px solid var(--border);padding-bottom:8px}

/* Ad slots (render only when configured) */
.ad-slot{margin:28px auto;text-align:center;min-height:0}
.ad-slot:empty{display:none}
.ad-slot .ad-label{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:6px}

/* Labs & tools */
.lab{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:24px;align-items:start}
@media (max-width:960px){.lab{grid-template-columns:1fr}}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.panel h2{font-size:1.15rem;margin-bottom:14px}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px}
.kpi{background:var(--surface-2);border:1px solid var(--border);border-radius:14px;padding:14px}
.kpi b{display:block;font:800 1.45rem/1.1 var(--display);font-variant-numeric:tabular-nums}
.kpi span{font-size:.8rem;color:var(--muted)}
.kpi.good b{color:var(--brand)}.kpi.bad b{color:var(--red)}.kpi.gold b{color:var(--gold)}
.chart{width:100%;height:260px;background:var(--surface-2);border:1px solid var(--border);border-radius:14px}
.chart-sm{height:180px}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.action-btn{flex:1 1 100px;padding:14px 10px;border-radius:14px;border:1px solid var(--border-2);background:var(--surface-2);color:var(--text);font:800 1rem/1 var(--font);cursor:pointer;transition:transform .12s,background .15s}
.action-btn:hover{transform:translateY(-2px);border-color:var(--brand)}
.action-btn kbd{display:block;margin:6px auto 0;width:max-content;font-size:.7rem;opacity:.7}
.action-btn.right{background:color-mix(in srgb,var(--brand) 30%,var(--surface-2));border-color:var(--brand)}
.action-btn.wrong{background:color-mix(in srgb,var(--red) 28%,var(--surface-2));border-color:var(--red)}
.feedback{min-height:64px;border-radius:14px;padding:14px 16px;background:var(--surface-2);border:1px solid var(--border);font-size:.95rem}
.feedback.ok{border-color:var(--brand)}.feedback.no{border-color:var(--red)}
.leak{display:grid;grid-template-columns:90px 1fr 54px;gap:10px;align-items:center;font-size:.88rem;margin:8px 0}
.leak .meter-bar i{background:var(--brand)}
.history-strip{display:flex;gap:5px;flex-wrap:wrap}
.history-strip span{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font:700 .78rem/1 var(--font);color:#fff}
.n-red{background:#c62828}.n-black{background:#1b1f2a;border:1px solid #444}.n-green{background:#138a4a}
.wheel-num{width:110px;height:110px;border-radius:50%;display:grid;place-items:center;font:800 2.6rem/1 var(--display);color:#fff;margin:0 auto;box-shadow:0 0 0 8px var(--surface-3),0 0 0 9px var(--border-2)}
.wheel-num.spin{animation:spin .7s cubic-bezier(.2,.8,.2,1)}
@keyframes spin{from{transform:rotate(-540deg) scale(.6);opacity:.2}to{transform:none;opacity:1}}
.reels{display:flex;gap:10px;justify-content:center}
.reel{width:88px;height:96px;border-radius:14px;background:#fff;color:#111;display:grid;place-items:center;font-size:2.6rem;box-shadow:inset 0 -10px 20px rgba(0,0,0,.12),0 6px 14px rgba(0,0,0,.3)}
.reel.spin{animation:reel .5s ease}
@keyframes reel{0%{transform:translateY(-12px);filter:blur(3px)}100%{transform:none;filter:none}}
.die{width:70px;height:70px;border-radius:14px;background:#fff;display:grid;grid-template:repeat(3,1fr)/repeat(3,1fr);padding:9px;box-shadow:0 6px 14px rgba(0,0,0,.3)}
.die i{width:13px;height:13px;border-radius:50%;background:#111;place-self:center;visibility:hidden}
.die i.on{visibility:visible}
.die.roll{animation:roll .45s ease}
@keyframes roll{0%{transform:rotate(-200deg) scale(.7)}100%{transform:none}}
.coin{width:110px;height:110px;border-radius:50%;display:grid;place-items:center;font:800 2.4rem/1 var(--display);background:radial-gradient(circle at 35% 30%,#ffe7a3,var(--gold) 55%,var(--gold-2));color:#3a2600;margin:0 auto;box-shadow:0 8px 20px rgba(0,0,0,.35)}
.coin.flip{animation:flip .55s ease}
@keyframes flip{0%{transform:rotateY(0) scale(.9)}50%{transform:rotateY(540deg) scale(1.1)}100%{transform:rotateY(1080deg)}}
.card-picker{display:grid;grid-template-columns:repeat(13,1fr);gap:4px}
.card-picker button{padding:6px 0;border-radius:6px;border:1px solid var(--border-2);background:#fdfdfb;color:#111;font:800 .78rem/1.1 var(--font);cursor:pointer}
.card-picker button.red{color:#c8102e}
.card-picker button.used{opacity:.25;cursor:not-allowed}
.card-picker button.sel{outline:3px solid var(--gold)}
@media (max-width:560px){.card-picker{grid-template-columns:repeat(13,minmax(22px,1fr));overflow-x:auto}.card-picker button{font-size:.66rem}}
.slot-row{display:flex;gap:8px;min-height:70px;align-items:center;flex-wrap:wrap}
.slot-card{width:50px;height:70px;border-radius:8px;border:2px dashed var(--border-2);display:grid;place-items:center;cursor:pointer;background:var(--surface-2);color:var(--faint);font-weight:800}
.slot-card.filled{border:1px solid #d9d9d2;background:#fdfdfb;color:#111;font-size:1rem}
.slot-card.filled.red{color:#c8102e}
.slot-card.active{border-color:var(--gold);border-style:solid}
.quiz-q{border:1px solid var(--border);border-radius:14px;padding:18px;background:var(--surface);margin:12px 0}
.quiz-q legend{font-weight:700;padding:0 4px;margin-bottom:10px}
.quiz-q .opts{display:flex;flex-wrap:wrap;gap:8px}
.quiz-q label{display:flex;gap:8px;align-items:center;padding:9px 14px;border:1px solid var(--border-2);border-radius:999px;cursor:pointer;font-size:.92rem;background:var(--surface-2)}
.quiz-q label:has(input:checked){border-color:var(--brand);background:color-mix(in srgb,var(--brand) 14%,var(--surface-2))}
.result-box{border-radius:18px;padding:24px;border:1px solid var(--border);background:var(--surface)}
.puzzle{border:1px solid color-mix(in srgb,var(--gold) 35%,var(--border));background:linear-gradient(160deg,color-mix(in srgb,var(--gold) 12%,var(--surface)),var(--surface));border-radius:var(--radius);padding:24px}
.puzzle .answer{display:none;margin-top:14px;padding-top:14px;border-top:1px dashed var(--border-2)}
.puzzle.revealed .answer{display:block}
.countdown{display:flex;gap:10px}
.countdown div{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:10px 12px;text-align:center;min-width:64px}
.countdown b{display:block;font:800 1.5rem/1 var(--display);font-variant-numeric:tabular-nums}
.countdown span{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.tier{display:flex;flex-direction:column}
.tier .price{font:800 2.2rem/1 var(--display);margin:8px 0}
.tier ul{padding-left:1.1em;color:var(--muted);font-size:.93rem}
.tier.popular{border-color:var(--gold);box-shadow:0 0 0 3px color-mix(in srgb,var(--gold) 25%,transparent),var(--shadow)}
.alloc{display:grid;grid-template-columns:150px 1fr 48px;gap:12px;align-items:center;margin:10px 0;font-size:.92rem}
.timeline{list-style:none;padding:0;margin:0;counter-reset:s}
.timeline li{position:relative;padding:0 0 22px 52px;counter-increment:s}
.timeline li::before{content:counter(s);position:absolute;left:0;top:0;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--brand);color:var(--brand-ink);font-weight:800}
.timeline li::after{content:"";position:absolute;left:17px;top:40px;bottom:4px;width:2px;background:var(--border)}
.timeline li:last-child::after{display:none}
.embed-code{font:500 .82rem/1.5 var(--mono);background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:12px;width:100%;min-height:96px;color:var(--text)}
.news-list{list-style:none;padding:0;margin:0}
.news-list li{padding:14px 0;border-bottom:1px solid var(--border)}
.news-list a{color:var(--text);font-weight:600}
.news-list small{display:block;color:var(--muted);margin-top:4px}

/* Footer */
.site-footer{margin-top:80px;border-top:1px solid var(--border);background:var(--bg-2);padding:56px 0 28px;font-size:.93rem}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:32px}
@media (max-width:980px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr}}
.site-footer h3{font:700 .8rem/1 var(--font);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:9px 0}
.site-footer a{color:var(--text);opacity:.86}
.site-footer a:hover{opacity:1}
.footer-legal{margin-top:40px;padding-top:22px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;color:var(--faint);font-size:.84rem}
.age-badge{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;border:2px solid var(--red);color:var(--red);font:800 .85rem/1 var(--font);flex:0 0 auto}

/* Embed mode & print */
body.embed .topbar,body.embed .site-header,body.embed .site-footer,body.embed .slidein,body.embed .page-hero{display:none!important}
@media print{
  .topbar,.site-header,.site-footer,.sidebar,.ad-slot,.slidein,.sticky-cta,.no-print,.share{display:none!important}
  body{background:#fff;color:#000;font-size:12pt}
  .card,.panel,.table-wrap{box-shadow:none;border-color:#bbb}
  a{color:#000}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
/* grid children may shrink below their content width so wide tables scroll inside .table-wrap */
.grid>*,.lab>*,.article-layout>*,.hero-grid>*,.band>*,.footer-grid>*,.stack>*{min-width:0}
.prose,.prose *{overflow-wrap:anywhere}
.prose table.data,.prose .formula{overflow-wrap:normal}
.tier .badge{align-self:flex-start}
@media (max-width:600px){.stats{grid-template-columns:1fr 1fr}.stats .card{padding:16px}.stats .stat{font-size:1.6rem}}
.footer-links{display:flex;flex-wrap:wrap;gap:6px 4px;margin-top:32px;font-size:.88rem;color:var(--faint)}
.footer-links a{color:var(--muted)}
#footer-rich:empty{display:none}