/* Shared styles for the case pages (episodes). The site header and footer come from site.css, loaded after this file. */
:root{--bg:#050709;--pan:#0b1218;--pan2:#0d151d;--line:#1d2a34;--ink:#eef3f6;--mut:#8894a0;--acc:#2de2c5;--bad:#ff5a5f;--warn:#ffb547;--blue:#6ea8ff;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#050709}}
:root[data-theme="dark"]{--bg:#050709}
*{box-sizing:border-box}[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:calc(130px + env(safe-area-inset-top,0px))}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.7 Manrope,system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3{font-family:"Instrument Serif",Georgia,serif;font-weight:400;margin:0;line-height:1.08}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--mut)}
button{font:inherit;cursor:pointer;color:inherit}a{color:var(--acc)}:focus-visible{outline:2px solid var(--acc);outline-offset:3px}
.w{max-width:960px;margin:auto;padding:0 20px}.narrow{max-width:700px;margin:auto;padding:0 20px}
header.b{padding:clamp(36px,6vw,64px) 0 0}
section.b{padding:clamp(48px,7vw,86px) 0}
h1.hero{font-size:clamp(34px,7vw,62px);margin-bottom:18px}
.lede{font-size:19px;color:#c3cdd6}
h2.h{font-size:clamp(26px,4.2vw,40px);margin-bottom:12px}
p{color:#b9c6d2}
p.sub{color:var(--mut)}

/* case bar: sits under the site nav and carries the chapter paging */
.case-bar{position:fixed;left:0;right:0;top:calc(68px + env(safe-area-inset-top,0px));z-index:19;background:#050709e8;backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.case-bar-in{max-width:1180px;margin:auto;height:48px;display:flex;align-items:center;gap:14px;padding:0 20px;font-size:14px}
.case-bar-in a{color:var(--mut);text-decoration:none;white-space:nowrap;flex:none}.case-bar-in a:hover{color:var(--ink)}
.case-bar-in .context{margin:0;flex:none}
.case-bar .ct{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--acc);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.case-bar .rgt{margin-left:auto;display:flex;align-items:center;gap:14px;flex:none}
.case-bar .chn{margin:0}
.case-bar .t{color:var(--mut);font-size:13px;white-space:nowrap}
.dots{display:flex;gap:5px}
.dots button{width:16px;height:20px;padding:0;border:0;background:none;display:grid;align-items:center}
.dots button::before{content:"";display:block;height:3px;background:#1d2a34;transition:.3s}
.dots button.done::before{background:#2de2c566}.dots button.now::before{background:var(--acc);box-shadow:0 0 8px var(--acc)}
.dots button:hover::before{background:#2de2c599}
body:not(.ch) .case-bar .ct,body:not(.ch) .case-bar .chn,body:not(.ch) .dots{display:none}
.case-bar .prog{position:absolute;left:0;right:0;bottom:-1px;height:2px}
.case-bar .prog i{display:block;height:2px;width:0;background:var(--acc);box-shadow:0 0 10px var(--acc);transition:width .3s}
@media(max-width:860px){.case-bar{top:calc(64px + env(safe-area-inset-top,0px))}.case-bar-in{height:44px;padding:0 16px;gap:10px;font-size:13px}.case-bar .rgt{gap:10px}}
@media(max-width:600px){.case-bar-in .context,.case-bar .t,.case-bar .back span{display:none}.dots{gap:3px}.dots button{width:10px}}
@media(max-width:360px){.case-bar .chn{display:none}}

/* chapter mode */
html.cjs:not(.cready) .case-body>[data-ch]:not(:first-child),html.cjs:not(.cready) .case-body>[data-ch]:not(:first-child)~*{display:none}
body.ch .case-body>section.b{padding-top:26px}
body.ch .case-body>header.b{padding-top:26px}
.chnav{display:none;max-width:700px;margin:0 auto;padding:0 20px 70px}
body.ch .chnav{display:block}
.chnav .in2{border-top:1px solid var(--line);padding-top:22px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.chnav .nx{background:var(--acc);color:#04211d;border:0;padding:14px 22px;font-weight:600;font-size:15px;transition:.25s;display:flex;gap:10px;align-items:center;text-decoration:none}
.chnav .nx:hover{transform:translateX(3px)}
.chnav .nx small{font-weight:400;opacity:.65;font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.1em;text-transform:uppercase}
.chnav .bk{background:transparent;border:1px solid var(--line);color:var(--mut);padding:14px 16px;font-size:14px}
.chnav .bk:hover{border-color:var(--acc);color:var(--acc)}
.chnav .all{margin-left:auto;background:none;border:0;color:var(--mut);font-size:13px;text-decoration:underline;text-underline-offset:3px;padding:6px}
.chnav .all:hover{color:var(--acc)}

/* widget frames */
.viz{border:1px solid var(--line);background:#070d12;margin-top:24px}
.vh{padding:12px 16px;border-bottom:1px solid var(--line);background:#0a131a;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.vh .mono{margin:0}
.vb{padding:16px}
.vf{padding:12px 16px;border-top:1px solid var(--line);display:flex;gap:9px;flex-wrap:wrap}
.vf button{border:1px solid var(--line);background:var(--pan);padding:10px 15px;font-size:14px;transition:.2s}
.vf button:hover{border-color:var(--acc);color:var(--acc)}
.vf .go{background:var(--acc);color:#04211d;border-color:var(--acc);font-weight:600}
.zip{border:1px solid var(--line);background:#070d12;margin-top:20px}
.zh{padding:10px 14px;border-bottom:1px solid var(--line);background:#0a131a;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.zb{padding:14px;display:grid;gap:12px}
.seg{display:flex;border:1px solid var(--line)}
.seg button{background:transparent;padding:7px 13px;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.06em;border:0;border-right:1px solid var(--line);transition:.2s}
.seg button:last-child{border-right:0}
.seg button.on{background:var(--acc);color:#04211d;font-weight:600}
.seg button:hover:not(.on){color:var(--acc)}
.qline{font-family:"IBM Plex Mono",monospace;font-size:13px;color:#9fb0bc;background:#040a0e;border:1px solid var(--line);padding:9px 12px;margin-bottom:14px}
.qline .k{color:var(--acc)}
.verd{border-left:2px solid var(--acc);background:#2de2c50a;padding:11px 14px;margin-top:14px;font-size:14.5px;color:#c6d1da;min-height:44px}
.verd.bad{border-color:var(--bad);background:#ff5a5f0a}
.verd b{color:var(--ink);font-weight:600}
.bytes{display:flex;gap:14px;font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut)}
.bytes b{font-family:"Instrument Serif",serif;font-weight:400;font-size:20px;letter-spacing:0;text-transform:none;color:var(--ink);display:block}
.bytes b.ok{color:var(--acc)}
.out{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
@media(max-width:700px){.out{grid-template-columns:1fr}}
.out>div{border:1px solid var(--line);background:#0a1117;padding:14px}
.out .ttl{font-family:"IBM Plex Mono",monospace;font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:#4d5862;margin-bottom:9px}
.pill{display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;padding:4px 9px;border:1px solid}
.pill.ok{color:var(--acc);border-color:var(--acc);background:#2de2c514}
.pill.no{color:var(--bad);border-color:var(--bad);background:#ff5a5f14}
.big{font-family:"Instrument Serif",serif;font-size:31px;line-height:1.1;margin:10px 0 2px;color:var(--ink)}
.big.bad{color:var(--bad)}.big.ok{color:var(--acc)}
.sm{font-size:13px;color:var(--mut);margin:0}

/* text blocks */
.chain{display:grid;gap:8px;margin-top:22px}
.chain div{border-left:2px solid var(--acc);background:var(--pan);padding:11px 15px;font-size:15px;color:var(--mut)}
.chain div b{color:var(--ink);font-weight:600}
.sbys{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
@media(max-width:700px){.sbys{grid-template-columns:1fr}}
.sbys>div{border:1px solid var(--line);background:var(--pan);padding:16px}
.sbys h4{font-family:"Instrument Serif",serif;font-weight:400;font-size:19px;margin:0 0 4px}
.sbys .mono{margin-bottom:9px}
.sbys pre{margin:0;font-family:"IBM Plex Mono",monospace;font-size:11px;line-height:1.7;color:#9fb0bc;white-space:pre-wrap}
.sbys p{margin:10px 0 0;font-size:14px;color:var(--mut)}
.tri{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}
@media(max-width:700px){.tri{grid-template-columns:1fr}}
.tri>div{border:1px solid var(--line);background:var(--pan);padding:15px}
.tri h4{font-family:"Instrument Serif",serif;font-weight:400;font-size:19px;margin:0 0 6px;color:var(--ink)}
.tri p{margin:0;font-size:14.5px;color:var(--mut)}
.pull{font-family:"Instrument Serif",serif;font-size:clamp(24px,4vw,38px);line-height:1.15;margin:30px 0;padding-left:20px;border-left:2px solid var(--acc);color:var(--ink)}
.warnbox{border:1px solid #ff5a5f55;background:#ff5a5f09;padding:18px 20px;margin-top:24px}
.warnbox b{color:var(--ink)}
.flowd{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:22px;justify-content:center}
.flowd .n{border:1px solid var(--line);background:var(--pan);padding:12px 14px;text-align:center;min-width:112px}
.flowd .n.you{border-color:var(--acc);box-shadow:0 0 0 1px var(--acc)}
.flowd .n b{display:block;font-family:"Instrument Serif",serif;font-weight:400;font-size:17px}
.flowd .n span{font-family:"IBM Plex Mono",monospace;font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut)}
.flowd .ar{color:var(--acc)}
table.cmp{width:100%;border-collapse:collapse;margin-top:22px;font-size:15px}
table.cmp th,table.cmp td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}
table.cmp th{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--mut);font-weight:500}
table.cmp td:first-child{color:var(--mut);width:118px}
table.cmp .a{color:var(--blue)}table.cmp .b{color:var(--acc)}
.gl{width:100%;border-collapse:collapse;margin-top:20px;font-size:15px}
.gl td{padding:12px 12px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--mut)}
.gl td:first-child{width:200px;font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.06em;color:var(--acc);text-transform:uppercase;line-height:1.6}
@media(max-width:640px){.gl td{display:block;border:0;padding:4px 0}.gl td:first-child{width:auto;padding-top:14px}.gl tr{display:block;border-bottom:1px solid var(--line);padding-bottom:12px}}

/* end of a case: quiz, playbook, review, next */
.q{border:1px solid var(--line);background:var(--pan);padding:20px;margin-top:14px}
.q h3{font-size:20px;margin-bottom:12px}
.q button{display:block;width:100%;text-align:left;background:transparent;border:1px solid var(--line);color:var(--ink);padding:12px 14px;margin-bottom:8px;transition:.22s;font-size:15px}
.q button:hover{border-color:var(--acc)}.q button.good{border-color:var(--acc);color:var(--acc)}.q button.bad{border-color:var(--bad);color:var(--bad)}
.q .fb{color:var(--mut);font-size:14.5px;margin:8px 0 0;display:none}
.play{border:1px solid var(--acc);background:var(--pan);padding:clamp(22px,4vw,34px);margin-top:24px}
.play ol{margin:16px 0 0;padding-left:18px;display:grid;gap:13px}
.play li::marker{color:var(--acc);font-family:"IBM Plex Mono",monospace;font-size:12px}
.play li b{display:block;font-family:"Instrument Serif",serif;font-weight:400;font-size:20px;margin-bottom:2px}
.play li span{color:var(--mut);font-size:15px}
.review{border:1px solid var(--line);background:var(--pan);padding:clamp(22px,4vw,34px)}
.review h2{font-size:clamp(26px,4vw,38px);margin:6px 0 10px}
.review .avg{color:var(--mut);font-size:14.5px;margin:0 0 18px;min-height:1.4em}
.stars{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.stars button{width:48px;height:48px;border:1px solid var(--line);background:transparent;color:var(--mut);font-size:22px;line-height:1;padding:0;transition:.2s}
.stars button:hover,.stars button.on{border-color:var(--warn);color:var(--warn)}
.stars button:disabled{cursor:default}
.review textarea{width:100%;min-height:90px;background:#ffffff0d;border:1px solid var(--line);color:var(--ink);padding:12px 14px;font:15px Manrope,sans-serif;resize:vertical;margin-bottom:14px}
.review .ok{margin-top:12px}
.cta{background:var(--pan2);border:1px solid var(--line);padding:clamp(24px,5vw,48px);text-align:center;margin-top:26px}
.cta .acts{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:22px 0 0}
.form{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:22px}
.form input{flex:1 1 250px;max-width:340px;background:#ffffff0d;border:1px solid var(--line);color:var(--ink);padding:14px 16px;font:16px Manrope,sans-serif}
.ok{color:var(--acc);font-size:14px;min-height:20px;margin-top:10px}.form .ok{flex:1 0 100%}.ok[data-state="error"]{color:#ff7b7f}.ok[data-state="pending"]{color:var(--mut)}

/* "Try it" prompts on interactive demos (case.js adds the tab, the nudge and the quiz hint) */
.try{display:flex;align-items:stretch;margin:26px 0 0;border:1px solid #2de2c55c;border-bottom:0;background:#2de2c50d}
.try+[data-try]{margin-top:0}
.try.loose{border-bottom:1px solid #2de2c55c;margin-bottom:14px}
.try-tag{display:flex;align-items:center;gap:8px;flex:none;padding:9px 12px;background:var(--acc);color:#04211d;font:600 10.5px/1 "IBM Plex Mono",ui-monospace,monospace;letter-spacing:.16em;text-transform:uppercase;white-space:nowrap}
.try-tag i{width:6px;height:6px;border-radius:50%;background:#04211d;animation:trydot 1.3s ease-in-out infinite}
@keyframes trydot{50%{opacity:.2}}
.try-tx{display:flex;align-items:center;padding:8px 12px;font-size:14px;line-height:1.45;color:#d5dee5}
.try.done{border-color:var(--line);background:transparent}
.try.done .try-tag{background:transparent;color:var(--acc);border-right:1px solid var(--line)}
.try.done .try-tx{color:var(--mut)}
.try-pulse{animation:trypulse 1.5s ease-out 3}
@keyframes trypulse{0%{box-shadow:0 0 0 0 #2de2c5aa}75%{box-shadow:0 0 0 14px #2de2c500}100%{box-shadow:0 0 0 0 #2de2c500}}
.try-nudge{display:flex;align-items:center;gap:10px 12px;flex-wrap:wrap;margin:0 0 14px;padding:12px 14px;border:1px solid #2de2c540;background:#2de2c50a;font-size:14.5px;line-height:1.5;color:#c6d1da}
.try-nudge>i{width:7px;height:7px;border-radius:50%;background:var(--acc);box-shadow:0 0 8px var(--acc);flex:none}
.try-nudge>span{flex:1 1 220px}
.try-nudge .try-nw{color:var(--mut)}
.try-nudge button{background:transparent;border:1px solid var(--acc);color:var(--acc);padding:9px 13px;font-size:13.5px;font-weight:600;transition:.2s}
.try-nudge button:hover{background:var(--acc);color:#04211d}
.q-hint{display:flex;align-items:center;gap:8px;margin:-4px 0 12px;font:500 10.5px/1 "IBM Plex Mono",ui-monospace,monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--acc)}
.q-hint::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--acc)}
@media(max-width:520px){.try-tag{padding:9px 10px}.try-tx{font-size:13.5px;padding:8px 10px}}
@media(prefers-reduced-motion:reduce){.try-tag i{animation:none}.try-pulse{animation:none;outline:2px solid var(--acc);outline-offset:3px}}

@media(max-width:520px){.w,.narrow{padding-left:16px;padding-right:16px}.form{display:grid;grid-template-columns:1fr}.form input,.form button{width:100%;max-width:none;min-height:50px}.play,.review{padding:20px}.q{padding:18px}.cta .acts{flex-direction:column}.cta .acts .btn{width:100%}}
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{transition:none!important}.rv{opacity:1;transform:none}html{scroll-behavior:auto}}