/* For Geeks: shared by forgeeks.html, forgeeks-guide.html and forgeeks-roadmap.html. Its own design: guideline Part D, Coders (guideline/coders.html), not Part B. */
@import url("textures.css");
/* ---------- themes: every text pair is 4.5:1 or better on its background. --veil: how solid a panel is at its centre, --veil-edge at its edges; --soft is the fill that fades between them ---------- */
:root{color-scheme:dark;--bg:#0a0a0a;--panel:#111;--well:#0d0d0d;--ink:#f2f2f2;--dim:#b8b8b8;--faint:#4a4a4a;--line:rgba(255,255,255,.12);--line-strong:rgba(255,255,255,.28);--accent:#fff;--accent2:#9aa0a6;--btn:#fff;--btn-ink:#0a0a0a;--particle:242,242,242;--glow:255,255,255;
  --veil:94%;--veil-edge:30%;--soft:radial-gradient(farthest-corner at 50% 50%,color-mix(in srgb,var(--bg) var(--veil),transparent) 40%,color-mix(in srgb,var(--bg) var(--veil-edge),transparent));--mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--sans:Inter,system-ui,-apple-system,"Segoe UI",sans-serif}
:root[data-theme="phosphor"]{--bg:#040a06;--panel:#08130c;--well:#061009;--ink:#d8ffe4;--dim:#a8d6b6;--faint:#284a33;--line:rgba(57,255,136,.14);--line-strong:rgba(57,255,136,.34);--accent:#39ff88;--accent2:#b6ff5c;--btn:#39ff88;--btn-ink:#04140a;--particle:120,255,170;--glow:57,255,136}
:root[data-theme="amber"]{--bg:#0c0803;--panel:#150e05;--well:#100a04;--ink:#ffe7c2;--dim:#dcb98a;--faint:#4d3a1f;--line:rgba(255,176,0,.15);--line-strong:rgba(255,176,0,.36);--accent:#ffb000;--accent2:#ff7a3d;--btn:#ffb000;--btn-ink:#1a1003;--particle:255,196,110;--glow:255,176,0}
:root[data-theme="nile"]{--bg:#070b16;--panel:#0c1222;--well:#090e1b;--ink:#e9edf7;--dim:#b7c0d8;--faint:#28324d;--line:rgba(230,180,80,.15);--line-strong:rgba(230,180,80,.36);--accent:#e6b450;--accent2:#4fb3c9;--btn:#e6b450;--btn-ink:#120d02;--particle:214,224,245;--glow:230,180,80}
:root[data-theme="tokyo"]{--bg:#13141c;--panel:#1a1b26;--well:#16161e;--ink:#c0caf5;--dim:#aab2d8;--faint:#33374f;--line:rgba(122,162,247,.16);--line-strong:rgba(122,162,247,.38);--accent:#7aa2f7;--accent2:#bb9af7;--btn:#7aa2f7;--btn-ink:#11131c;--particle:192,202,245;--glow:122,162,247}
:root[data-theme="dracula"]{--bg:#191a21;--panel:#21222c;--well:#1d1e26;--ink:#f8f8f2;--dim:#c6cae4;--faint:#3c3f52;--line:rgba(189,147,249,.16);--line-strong:rgba(189,147,249,.4);--accent:#bd93f9;--accent2:#ff79c6;--btn:#bd93f9;--btn-ink:#191a21;--particle:248,248,242;--glow:189,147,249}
:root[data-theme="rose"]{--bg:#140a10;--panel:#1d0f17;--well:#170c12;--ink:#ffe4ee;--dim:#dcaabe;--faint:#4d2a3a;--line:rgba(255,111,160,.15);--line-strong:rgba(255,111,160,.36);--accent:#ff6fa0;--accent2:#ffb38a;--btn:#ff6fa0;--btn-ink:#1a0810;--particle:255,190,214;--glow:255,111,160}
:root[data-theme="ocean"]{--bg:#04121a;--panel:#082030;--well:#061823;--ink:#dff6ff;--dim:#9fc9d9;--faint:#1d4152;--line:rgba(56,201,240,.15);--line-strong:rgba(56,201,240,.36);--accent:#38c9f0;--accent2:#7ef0c8;--btn:#38c9f0;--btn-ink:#03141c;--particle:170,225,245;--glow:56,201,240}
:root[data-theme="solarized"]{--bg:#002b36;--panel:#073642;--well:#01313d;--ink:#eee8d5;--dim:#aab9b8;--faint:#1f4a55;--line:rgba(181,137,0,.15);--line-strong:rgba(181,137,0,.36);--accent:#d4a017;--accent2:#3cc4b6;--btn:#d4a017;--btn-ink:#002b36;--particle:238,232,213;--glow:181,137,0}
:root[data-theme="synthwave"]{--bg:#12061f;--panel:#1b0b2e;--well:#160826;--ink:#f6e9ff;--dim:#c6a9df;--faint:#3d2357;--line:rgba(255,62,165,.15);--line-strong:rgba(255,62,165,.36);--accent:#ff3ea5;--accent2:#36f9f6;--btn:#ff3ea5;--btn-ink:#14051f;--particle:230,200,255;--glow:255,62,165}
:root[data-theme="meadow"]{--bg:#08192A;--panel:#0F2233;--well:#0b1d2e;--ink:#EAF4F1;--dim:#B8CAD2;--faint:#243A4C;--line:rgba(63,203,147,.16);--line-strong:rgba(63,203,147,.38);--accent:#3FCB93;--accent2:#5AA9FF;--btn:#3FCB93;--btn-ink:#0A2442;--particle:200,232,222;--glow:63,203,147}
:root[data-theme="paper"]{color-scheme:only light;--bg:#f4f1ea;--panel:#fbf9f4;--well:#ece8de;--ink:#161616;--dim:#45413a;--faint:#cbc5b8;--line:rgba(22,22,22,.13);--line-strong:rgba(22,22,22,.32);--accent:#a8401c;--accent2:#2f6f62;--btn:#161616;--btn-ink:#f4f1ea;--particle:30,28,24;--glow:168,64,28}
/* paid themes (the market, forgeeks-market.html): the same fourteen tokens, same contrast rules (tools/theme_contrast.py) */
:root[data-theme="moss"]{--bg:#0b0e08;--panel:#12170d;--well:#0e120a;--ink:#eef3dc;--dim:#bcc7a0;--faint:#2f3a20;--line:rgba(185,217,74,.15);--line-strong:rgba(185,217,74,.36);--accent:#b9d94a;--accent2:#e0a84a;--btn:#b9d94a;--btn-ink:#10160a;--particle:222,236,170;--glow:185,217,74}
:root[data-theme="garnet"]{--bg:#1a0608;--panel:#250a0f;--well:#1e070b;--ink:#fbeee4;--dim:#e0b9ab;--faint:#4f2428;--line:rgba(255,107,87,.16);--line-strong:rgba(255,107,87,.38);--accent:#ff6b57;--accent2:#f2c27a;--btn:#ff6b57;--btn-ink:#1c0505;--particle:255,205,190;--glow:255,107,87}
:root[data-theme="frost"]{color-scheme:only light;--bg:#eef2f7;--panel:#f8fafc;--well:#e4eaf2;--ink:#0f1722;--dim:#3b475a;--faint:#c3cddb;--line:rgba(15,23,34,.13);--line-strong:rgba(15,23,34,.32);--accent:#3340c4;--accent2:#0b7a75;--btn:#3340c4;--btn-ink:#f4f7ff;--particle:30,40,70;--glow:51,64,196}
/* textured tier: Papyrus wears Nile's tokens, Cotton wears Paper's; the texture itself is css/textures.css */
:root[data-theme="papyrus"]{--bg:#070b16;--panel:#0c1222;--well:#090e1b;--ink:#e9edf7;--dim:#b7c0d8;--faint:#28324d;--line:rgba(230,180,80,.15);--line-strong:rgba(230,180,80,.36);--accent:#e6b450;--accent2:#4fb3c9;--btn:#e6b450;--btn-ink:#120d02;--particle:214,224,245;--glow:230,180,80}
:root[data-theme="dendera"]{color-scheme:only light;--bg:#f1e6cc;--panel:#faf3e2;--well:#ecdfc3;--ink:#1e1a14;--dim:#54483a;--faint:#cdbd97;--line:rgba(30,26,20,.13);--line-strong:rgba(30,26,20,.32);--accent:#1f3f8c;--accent2:#0f6e6a;--btn:#1f3f8c;--btn-ink:#fffbf1;--particle:30,26,20;--glow:31,63,140}
:root[data-theme="cotton"]{color-scheme:only light;--bg:#f4f1ea;--panel:#fbf9f4;--well:#ece8de;--ink:#161616;--dim:#45413a;--faint:#cbc5b8;--line:rgba(22,22,22,.13);--line-strong:rgba(22,22,22,.32);--accent:#a8401c;--accent2:#2f6f62;--btn:#161616;--btn-ink:#f4f1ea;--particle:30,28,24;--glow:168,64,28}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px;-webkit-text-size-adjust:100%}
html,body{overflow-x:clip}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;transition:background-color .5s,color .5s}
a{color:inherit}button,input{font:inherit;color:inherit}
b,strong{font-weight:500}
::selection{background:rgba(var(--glow),.3)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:16px;top:-60px;z-index:60;background:var(--btn);color:var(--btn-ink);padding:8px 14px;font:500 13px var(--mono)}
.skip:focus{top:12px}

/* ---------- the field: canvas, pixel grid, vignette ---------- */
#field{position:fixed;left:0;top:0;width:100%;height:100vh;height:100lvh;z-index:0;pointer-events:none}
.grid{position:fixed;inset:0;z-index:0;pointer-events:none;background-image:radial-gradient(rgba(var(--particle),.09) 1px,transparent 1.2px);background-size:24px 24px;mask-image:radial-gradient(ellipse at 50% 40%,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at 50% 40%,#000 20%,transparent 75%)}
.scan{position:fixed;inset:0;z-index:1;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(0,0,0,.06) 0 1px,transparent 1px 3px);opacity:.5}
:root[data-theme="paper"] .scan,:root[data-theme="frost"] .scan,:root[data-theme="cotton"] .scan,:root[data-theme="dendera"] .scan{opacity:.15}
main,header,footer{position:relative;z-index:2}

.wrap{width:min(1180px,100% - 32px);margin-inline:auto}
.mono{font-family:var(--mono)}
.label{font:500 11px/1.4 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.accent{color:var(--accent)}

/* ---------- top bar ---------- */
.bar{position:fixed;inset:0 0 auto;z-index:40;border-bottom:1px solid transparent;transition:background-color .3s,border-color .3s}
.bar.solid{background:color-mix(in srgb,var(--bg) 94%,transparent);border-color:var(--line);}
.bar .wrap{display:flex;align-items:center;gap:20px;height:60px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font:500 14px var(--mono);white-space:nowrap}
.brand img{width:15px;height:21px;display:block}
/* Match the mark to the palette, including its saved state and live preview. */
:root .geeks-mark-light{display:none}
:root[data-theme="paper"] .geeks-mark-dark,:root[data-theme="frost"] .geeks-mark-dark,:root[data-theme="cotton"] .geeks-mark-dark,:root[data-theme="dendera"] .geeks-mark-dark{display:none}
:root[data-theme="paper"] .geeks-mark-light,:root[data-theme="frost"] .geeks-mark-light,:root[data-theme="cotton"] .geeks-mark-light,:root[data-theme="dendera"] .geeks-mark-light{display:inline}
.crumb{color:var(--dim);font:400 13px var(--mono);white-space:nowrap}
.crumb b{color:var(--ink);font-weight:500}
.caret{display:inline-block;width:.55em;height:1.05em;margin-left:2px;vertical-align:-.15em;background:var(--accent);animation:blink 1.06s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
/* top bar: the pages of this section; the sections of a page are in the rail on the left */
.links{display:flex;gap:4px;margin-left:auto}
.links a{white-space:nowrap;font:400 13px var(--mono);color:var(--dim);text-decoration:none;padding:6px 11px;border-radius:4px;transition:color .2s,background-color .2s}
.links a:hover{color:var(--ink);background:rgba(var(--particle),.06)}
.links a[aria-current="page"]{color:var(--ink)}
.links a[aria-current="page"]::before{content:"› ";color:var(--accent)}
.tools{display:flex;align-items:center;gap:8px}
.chip{display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 12px;border:1px solid var(--line);border-radius:6px;background:transparent;font:400 12.5px var(--mono);color:var(--ink);text-decoration:none;cursor:pointer;transition:border-color .2s,background-color .2s}
.chip:hover{border-color:var(--line-strong);background:rgba(var(--particle),.05)}
.dots{display:inline-flex}
.dots i{width:10px;height:10px;border-radius:50%;border:1px solid var(--line-strong);margin-left:-3px}
.dots i:first-child{margin-left:0;border-color:var(--dim)}
.progress{position:absolute;left:0;bottom:-1px;height:1px;width:100%;background:var(--accent);transform-origin:0 50%;transform:scaleX(0)}
/* account chip and menu (js/forgeeks-auth.js); signed out it is a plain "sign in" link */
.me-wrap{position:relative}
.chip.me.in{padding:0 12px 0 4px}
.me-av{width:26px;height:26px;flex:none;display:inline-grid;place-items:center;overflow:hidden;border-radius:50%;background:var(--well);border:1px solid var(--line-strong);font:500 12px var(--mono);color:var(--ink)}
.me-av img{width:100%;height:100%;object-fit:cover;display:block}
.me-name{max-width:14ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.me-menu{position:absolute;right:0;top:calc(100% + 8px);z-index:60;min-width:228px;max-width:calc(100vw - 32px);padding:6px;background:var(--panel);border:1px solid var(--line-strong);border-radius:8px;box-shadow:0 24px 60px rgba(0,0,0,.45)}
.me-menu[hidden]{display:none}
.me-head{display:grid;gap:2px;padding:10px 12px 10px;margin:0 0 6px;border-bottom:1px solid var(--line);font:400 12px var(--mono);color:var(--dim);overflow-wrap:anywhere}
.me-head b{color:var(--ink);font-weight:500;font-size:13px}
.me-menu [role=menuitem]{display:flex;align-items:center;width:100%;min-height:38px;padding:0 12px;border:0;border-radius:4px;background:none;font:400 13px var(--mono);color:var(--dim);text-align:left;text-decoration:none;cursor:pointer}
.me-menu [role=menuitem]:hover,.me-menu [role=menuitem]:focus-visible{color:var(--ink);background:rgba(var(--particle),.06)}
.me-menu .me-out{margin-top:6px;border-top:1px solid var(--line);border-radius:0 0 4px 4px}
.me-menu .me-group{justify-content:space-between;color:var(--ink)}
.me-menu .me-group::after{content:'';width:6px;height:6px;border:solid currentColor;border-width:0 1.5px 1.5px 0;transform:rotate(45deg) translateY(-2px);transition:transform .15s}
.me-menu .me-group[aria-expanded=true]::after{transform:rotate(-135deg)}
.me-sub{margin:0 0 4px 12px;padding-left:4px;border-left:1px solid var(--line)}
.me-sub[hidden]{display:none}
@media (prefers-reduced-motion:reduce){.me-menu .me-group::after{transition:none}}
@media (max-width:760px){.me-name{display:none}.chip.me.in{padding:0 4px}}
@media (max-width:640px){.links{margin-left:auto}.links a{padding:6px 7px}.links a.opt,.src{display:none}}
@media (max-width:1040px){.crumb{display:none}}
@media (max-width:760px){.chip .t-name{display:none}}
@media (max-width:420px){.bar .wrap{gap:8px}.brand{gap:0;font-size:0}.links a{padding:6px 5px;font-size:12px}.tools .chip{padding:0 8px}.tools .chip.me.in{padding:0 3px}}

/* ---------- hero ---------- */
.hero{position:relative;isolation:isolate;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;padding:120px 0 48px}
/* a soft floor under the hero text, so the terrain never runs behind a word */
.hero::before{content:"";position:absolute;inset:auto 0 0;height:70%;z-index:-1;pointer-events:none;background:linear-gradient(to bottom,transparent,color-mix(in srgb,var(--bg) 88%,transparent) 38%)}
.hero-grid{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end;margin-top:26px}
/* Home's greeting above the H1 (D07 .hello), and the hero arriving once on load (D08) */
.hello{margin:0 0 22px;font:400 14px/1.4 var(--mono);color:var(--dim)}
.hello .k{color:var(--accent)}
@keyframes arrive{from{opacity:0;transform:translateY(12px)}}
.js .arrive .hello{animation:arrive .8s cubic-bezier(.2,.8,.2,1) both}
.js .arrive h1{animation:arrive .8s cubic-bezier(.2,.8,.2,1) .2s both}
.js .arrive .hero-grid{animation:arrive .8s cubic-bezier(.2,.8,.2,1) .3s both}
.js .arrive .meta{animation:arrive .8s cubic-bezier(.2,.8,.2,1) .4s both}
h1{font:400 clamp(34px,5.1vw,70px)/1.1 var(--mono);letter-spacing:-.035em;margin:0;color:var(--dim);transition:text-shadow .5s}
h1.flash .hi,h1.flash .word{text-shadow:0 0 4px var(--bg),0 0 28px rgba(var(--glow),.55);transition:text-shadow .04s}
h1 .hi{color:var(--ink);font-weight:500}
.word{display:inline-block;color:var(--ink);font-weight:500;white-space:nowrap;text-align:left;vertical-align:bottom}
.lede{max-width:560px;margin:0;color:var(--dim);font-size:17px}
.hint{font:400 12px var(--mono);color:var(--dim)}
@media (hover:none),(prefers-reduced-motion:reduce){.hint{display:none}}
.lede b{color:var(--ink);font-weight:500}
.cta{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;gap:10px;height:46px;padding:0 20px;background:var(--btn);color:var(--btn-ink);border:0;border-radius:2px;font:500 14px var(--sans);text-decoration:none;cursor:pointer;white-space:nowrap;transition:transform .2s,box-shadow .3s}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 40px rgba(var(--glow),.25)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line-strong);font-family:var(--mono);font-size:13px}
.btn.ghost:hover{border-color:var(--accent)}
.btn .k{color:var(--accent)}
.meta{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:56px;padding-top:18px;border-top:1px solid var(--line)}
.meta span{font:400 12px var(--mono);color:var(--dim)}
.meta span:not(.hint)::before{content:"";display:inline-block;width:6px;height:6px;margin-right:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(var(--glow),.8);vertical-align:1px}
.scroll{font:400 11px var(--mono);color:var(--dim);letter-spacing:.14em;text-transform:uppercase;text-decoration:none;margin-left:auto}
.scroll::after{content:" ↓";display:inline-block;animation:nudge 1.8s ease-in-out infinite}
@keyframes nudge{50%{transform:translateY(3px)}}
@media (max-width:820px){.hero-grid{grid-template-columns:1fr;gap:24px}.cta{flex-wrap:wrap}}

/* ---------- sections ---------- */
section.s{padding:140px 0}
.s-head{display:grid;grid-template-columns:220px 1fr;gap:32px;margin-bottom:56px}
.s-num{font:400 12.5px var(--mono);color:var(--dim)}
.s-num b{color:var(--accent);font-weight:500}
h2{font:400 clamp(30px,4.2vw,54px)/1.12 var(--mono);letter-spacing:-.03em;margin:0;color:var(--dim)}
h2 .hi{color:var(--ink);font-weight:500}
.s-sub{max-width:640px;margin:18px 0 0;color:var(--dim)}
@media (max-width:820px){section.s{padding:96px 0}.s-head{grid-template-columns:1fr;gap:12px;margin-bottom:36px}}
@media (max-width:640px){section.s{padding:72px 0}.s-head{margin-bottom:28px}}

/* grid children may shrink below their content, so a long code line scrolls inside its box instead of widening the page */
.hero-grid>*,.mission>*,.proof-grid>*,.stack-grid>*,.closing-grid>*,.tracks>*{min-width:0}
/* a soft halo in the page colour behind every line of text, so the dots never cut through a letter */
h1,h2,.hello,.lede,.s-sub,.mission p,.meta,.s-num,.gaps p,.rule,.stats-note,.closing h2{text-shadow:0 0 4px var(--bg),0 0 12px var(--bg),0 0 22px var(--bg)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* mission */
.mission{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start}
.mission p{margin:0 0 18px;font-size:18px;color:var(--dim);max-width:520px}
.mission p b{color:var(--ink);font-weight:500}
.pillars{list-style:none;margin:6px 0 0;padding:0;border-top:1px solid var(--line)}
.pillars li{display:grid;grid-template-columns:96px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font:400 14px var(--mono)}
.pillars li span:first-child{color:var(--accent)}
.pillars li span:last-child{color:var(--ink)}
.pillars small{display:block;color:var(--dim);font-size:12.5px;margin-top:2px}
@media (max-width:820px){.mission{grid-template-columns:1fr;gap:28px}}

/* principles */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:0;overflow:hidden;border:1px solid var(--line)}
.card,.stat,.step{background:var(--soft);box-shadow:1px 0 0 var(--line),0 1px 0 var(--line)}
.card{position:relative;padding:32px 28px 28px;overflow:hidden;isolation:isolate}
.card::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(var(--glow),.11),transparent 45%);opacity:0;transition:opacity .4s}
.card:hover::before{opacity:1}
.card h3{font:500 13px var(--mono);margin:0 0 40px;color:var(--ink);display:flex;justify-content:space-between}
.card h3 span{color:var(--dim);font-weight:400}
.big{font:400 clamp(48px,6vw,76px)/1 var(--mono);letter-spacing:-.04em;color:var(--ink)}
.big small{font-size:.32em;letter-spacing:0;color:var(--dim);margin-left:6px}
.card p{margin:14px 0 26px;color:var(--dim);font-size:15px;min-height:4.9em}
.card p b{color:var(--ink);font-weight:500}
.proof{font:400 12px/1.7 var(--mono);color:var(--dim);border-top:1px dashed var(--line-strong);padding-top:14px}
.proof a{color:var(--accent);text-decoration:none}
.proof a:hover{text-decoration:underline}
.bar-cmp{display:grid;gap:6px;margin:0 0 22px}
.bar-cmp div{display:grid;grid-template-columns:54px 1fr 64px;align-items:center;gap:10px;font:400 11.5px var(--mono);color:var(--dim)}
.bar-cmp i{height:4px;background:var(--faint);transform-origin:0 50%;transform:scaleX(0);transition:transform 1.4s cubic-bezier(.2,.8,.2,1)}
.bar-cmp .now i{background:var(--accent);box-shadow:0 0 12px rgba(var(--glow),.6)}
.in .bar-cmp i{transform:scaleX(var(--w))}
@media (max-width:900px){.cards{grid-template-columns:1fr}.card p{min-height:0}}
@media (max-width:560px){.card{padding:24px 18px 20px}.card h3{margin-bottom:24px}.card p{margin-bottom:20px}}

/* terminal */
.proof-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:start}
.term{background:color-mix(in srgb,var(--well) var(--veil),transparent);border:1px solid var(--line-strong);border-radius:10px;overflow:hidden;box-shadow:0 30px 90px rgba(0,0,0,.35),0 0 0 1px rgba(0,0,0,.2),0 0 60px rgba(var(--glow),.05)}
.term-top{display:flex;align-items:center;gap:8px;padding:11px 14px;border-bottom:1px solid var(--line);font:400 12px var(--mono);color:var(--dim)}
.term-top i{width:11px;height:11px;border-radius:50%;background:var(--faint)}
.term-top span{margin-left:10px}
.term-top button{margin-left:auto;background:none;border:1px solid var(--line);border-radius:4px;padding:2px 8px;font:400 11px var(--mono);color:var(--dim);cursor:pointer}
.term-top button:hover{color:var(--ink);border-color:var(--line-strong)}
.term-body{height:440px;overflow-y:auto;padding:16px 18px 18px;font:400 13px/1.7 var(--mono);color:var(--ink);cursor:text;scrollbar-width:thin;scrollbar-color:var(--faint) transparent}
.term-body .ln{white-space:pre-wrap;word-break:break-word}
.term-body .p{color:var(--accent)}
.term-body .d{color:var(--dim)}
.term-body .a2{color:var(--accent2)}
.term-body .ok{color:var(--accent)}
.term-in{display:flex;gap:8px;align-items:baseline}
.term-in input{flex:1;min-width:0;background:none;border:0;outline:0;padding:0;font:inherit;color:var(--ink);caret-color:var(--accent)}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:0;overflow:hidden;border:1px solid var(--line)}
.stat{padding:20px 18px}
.stat b{display:block;font:400 34px/1.1 var(--mono);letter-spacing:-.03em;color:var(--ink)}
.stat span{font:400 12px var(--mono);color:var(--dim)}
.stats-note{margin:14px 0 0;font:400 12px/1.7 var(--mono);color:var(--dim)}
@media (max-width:900px){.proof-grid{grid-template-columns:1fr}.term-body{height:380px;font-size:12.5px}}

/* stack */
.stack-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:start}
.layers{list-style:none;margin:0;padding:0 0 0 34px;position:relative}
.layers::before{content:"";position:absolute;left:10px;top:8px;bottom:8px;width:1px;background:linear-gradient(var(--line-strong),var(--line))}
.layers::after{content:"";position:absolute;left:7px;top:8px;width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 14px 3px rgba(var(--glow),.6);animation:pulse 3.6s cubic-bezier(.6,0,.4,1) infinite}
/* top, not transform: the line is as tall as the list, whatever the fonts or the width */
@keyframes pulse{0%{top:8px;opacity:0}10%{opacity:1}90%{opacity:1}100%{top:calc(100% - 15px);opacity:0}}
.layers li{position:relative;display:grid;grid-template-columns:128px 1fr;gap:12px;padding:13px 14px;margin-bottom:6px;border:1px solid var(--line);border-radius:6px;background:var(--soft);font:400 13px var(--mono);transition:border-color .25s,transform .25s,background-color .25s}
.layers li::before{content:"";position:absolute;left:-28px;top:50%;width:18px;height:1px;background:var(--line-strong)}
.layers li:hover{border-color:var(--accent);transform:translateX(4px);background:rgba(var(--particle),.04)}
.layers li b{font-weight:500;color:var(--ink)}
.layers li span{color:var(--dim)}
.rule{margin:18px 0 0 34px;font:400 12px var(--mono);color:var(--dim)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 28px}
.tags span{font:400 12.5px var(--mono);padding:6px 11px;border:1px solid var(--line);border-radius:999px;color:var(--ink)}
.code{margin:0;padding:18px;border:1px solid var(--line);border-radius:8px;background:color-mix(in srgb,var(--well) var(--veil),transparent);font:400 12.5px/1.75 var(--mono);color:var(--ink);overflow-x:auto;white-space:pre}
.code .c{color:var(--dim)}.code .k{color:var(--accent)}.code .s2{color:var(--accent2)}
@media (max-width:900px){.stack-grid{grid-template-columns:1fr}.layers li{grid-template-columns:1fr;gap:2px}}

/* gaps */
.secret{margin-top:22px;font-size:15px}
.secret summary{cursor:pointer;list-style:none;display:inline-flex;gap:10px;font:400 12.5px var(--mono);color:var(--dim);opacity:.8;transition:opacity .2s}
.secret summary::-webkit-details-marker{display:none}
.secret summary:hover,.secret summary:focus-visible,.secret[open] summary{opacity:1}
.secret summary span{color:var(--accent2)}
.secret>div{margin-top:14px;padding-left:16px;border-left:1px solid var(--line)}
.mission .secret p{font-size:15px;margin:0 0 10px;color:var(--dim);line-height:1.6}
.secret small{font:400 12px var(--mono);color:var(--dim)}
.gaps{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.gaps li{display:grid;grid-template-columns:110px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
.gaps .tag{font:500 12px var(--mono);color:var(--accent2)}
.gaps .tag.b{color:var(--accent)}
.gaps p{margin:0;color:var(--dim);font-size:16px}
.gaps p b{color:var(--ink);font-weight:500}
@media (max-width:640px){.gaps li{grid-template-columns:1fr;gap:4px}}

/* build */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;overflow:hidden;border:1px solid var(--line);margin-bottom:28px}
.step{padding:24px 22px}
.step>b{display:block;font:400 12px var(--mono);color:var(--accent);margin-bottom:28px}
.step h3{font:500 15px var(--mono);margin:0 0 8px;color:var(--ink)}
.step p{margin:0;color:var(--dim);font-size:14.5px}
.step p b{color:var(--ink);font-weight:500}
.clone{display:flex;align-items:center;gap:14px;padding:16px 18px;border:1px solid var(--line-strong);border-radius:8px;background:color-mix(in srgb,var(--well) var(--veil),transparent);font:400 14px var(--mono);overflow-x:auto}
.clone code{flex:1;white-space:nowrap}
.clone .p{color:var(--accent)}
.clone button{flex:none;background:none;border:1px solid var(--line);border-radius:4px;padding:6px 10px;font:400 12px var(--mono);color:var(--dim);cursor:pointer}
.clone button:hover{color:var(--ink);border-color:var(--line-strong)}
.steps.three{grid-template-columns:repeat(3,1fr)}
.gaps+.steps{margin-top:56px}
@media (max-width:640px){.gaps+.steps{margin-top:40px}}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}.steps.three{grid-template-columns:1fr}}
@media (max-width:560px){.steps{grid-template-columns:1fr}.step{padding:20px 18px}.step>b{margin-bottom:12px}}
/* pick it, change it, send it: when the three are seen, each cell's top edge fills in turn, in the order you do them (D08: bars fill when seen, 1.4s); drawn full without script or with reduced motion */
.steps.three .step{position:relative}
.steps.three .step::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--accent);box-shadow:0 0 10px rgba(var(--glow),.7);transform-origin:0 50%;transform:scaleX(0);transition:transform 1.4s cubic-bezier(.2,.8,.2,1)}
.steps.three .step:nth-child(2)::before{transition-delay:.6s}
.steps.three .step:nth-child(3)::before{transition-delay:1.2s}
.steps.three.in .step::before,.no-js .steps.three .step::before{transform:scaleX(1)}
@media (prefers-reduced-motion:reduce){.steps.three .step::before{transition:none;transform:scaleX(1)}}

/* closing + footer, after the reference */
.closing{padding:52vh 0 90px}
.closing-grid{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:start}
.closing h2{font-size:clamp(34px,4.6vw,58px)}
footer{padding:0 0 40px}
.cols{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding:64px 0 72px}
.cols h4{margin:0 0 18px;font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.cols ul{list-style:none;margin:0;padding:0}
.cols li{margin:0 0 11px}
.cols a{font-size:13.5px;color:var(--ink);text-decoration:none;opacity:.9;transition:opacity .2s,color .2s}
.cols a:hover{opacity:1;color:var(--accent)}
.legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:22px;border-top:1px solid var(--line);font:500 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--dim)}
.legal a{text-decoration:none}.legal a:hover{color:var(--ink)}
@media (max-width:820px){.closing{padding-top:40vh}.closing-grid{grid-template-columns:1fr}.cols{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.closing{padding-top:30vh}.cols{padding:48px 0 56px}}

.toast{position:fixed;left:50%;bottom:24px;z-index:60;transform:translate(-50%,20px);opacity:0;padding:10px 16px;border:1px solid var(--line-strong);border-radius:6px;background:var(--panel);font:400 12.5px var(--mono);color:var(--ink);transition:opacity .25s,transform .25s;pointer-events:none}
.toast.on{opacity:1;transform:translate(-50%,0)}
.toast.link{pointer-events:auto}
.toast a{color:var(--accent);margin-left:2px}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .caret,.scroll::after,.layers::after,.js .arrive .hello,.js .arrive h1,.js .arrive .hero-grid,.js .arrive .meta{animation:none}
  .bar-cmp i{transition:none}
}

/* ---------- the rail: this page's sections, down the left edge ---------- */
.rail{position:fixed;left:22px;top:50%;z-index:30;display:flex;flex-direction:column;gap:4px;transform:translate(-8px,-50%);opacity:0;pointer-events:none;transition:opacity .4s,transform .4s}
.rail.show{opacity:1;transform:translate(0,-50%);pointer-events:auto}
.rail a{display:flex;align-items:center;gap:10px;padding:5px 0;font:400 12px var(--mono);color:var(--dim);text-decoration:none;text-shadow:0 0 6px var(--bg),0 0 14px var(--bg)}
.rail a i{display:block;width:12px;height:1px;background:var(--line-strong);transition:width .3s,background-color .3s}
.rail a em{font-style:normal;opacity:0;padding:2px 6px;margin-left:-6px;border-radius:3px;background:color-mix(in srgb,var(--bg) 92%,transparent);transform:translateX(-4px);transition:opacity .25s,transform .25s;white-space:nowrap}
.rail:hover a em,.rail a:focus-visible em{opacity:1;transform:none}
.rail a:hover,.rail a.on{color:var(--ink)}
.rail a.on i{width:28px;background:var(--accent);box-shadow:0 0 8px rgba(var(--glow),.6)}
.rail a.on em{color:var(--ink)}
@media (min-width:1640px){.rail a.on em{opacity:1;transform:none}}
.rail::before{content:"// on this page";font:400 10.5px var(--mono);letter-spacing:.08em;color:var(--dim);margin-bottom:8px;opacity:.8}
@media (max-width:1299px){
  html{scroll-padding-top:112px}
  .rail{left:0;right:0;top:60px;flex-direction:row;gap:2px;padding:6px max(16px,calc((100% - 1180px)/2));overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:none;transform:translateY(-6px);background:color-mix(in srgb,var(--bg) 94%,transparent);border-bottom:1px solid var(--line)}
  .rail.show{transform:none}
  .rail::-webkit-scrollbar{display:none}
  .rail::before,.rail a i,.rail a span{display:none}
  .rail a{flex:none;padding:6px 10px;border-radius:4px;text-shadow:none}
  .rail a em{opacity:1;transform:none;padding:0;margin:0;background:none}
  .rail a.on{background:rgba(var(--particle),.07);box-shadow:inset 0 -1px 0 var(--accent)}
}

/* ---------- theme picker: a window in the middle of the screen ---------- */
.tm{position:fixed;inset:0;z-index:70;display:grid;place-items:center;padding:16px}
.tm[hidden]{display:none}
.tm-back{position:absolute;inset:0;background:rgba(0,0,0,.55);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);animation:tmfade .2s ease}
.tm-win{position:relative;width:min(780px,100%);max-height:calc(100svh - 32px);display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line-strong);border-radius:12px;box-shadow:0 40px 120px rgba(0,0,0,.6),0 0 0 1px rgba(0,0,0,.25),0 0 80px rgba(var(--glow),.08);overflow:hidden;animation:tmpop .24s cubic-bezier(.2,.8,.2,1)}
@keyframes tmfade{from{opacity:0}}
@keyframes tmpop{from{opacity:0;transform:translateY(10px) scale(.97)}}
.tm-head{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line);font:400 13px var(--mono);color:var(--dim)}
.tm-head .d{display:flex;gap:6px}
.tm-head .d i{width:10px;height:10px;border-radius:50%;background:var(--faint)}
.tm-head b{color:var(--accent);font-weight:500}
.tm-head span{flex:1;margin-left:6px}
.tm-x{background:none;border:1px solid var(--line);border-radius:4px;padding:3px 9px;font:400 11.5px var(--mono);color:var(--dim);cursor:pointer}
.tm-x:hover{color:var(--ink);border-color:var(--line-strong)}
.tm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:14px;overflow-y:auto;outline:0;scrollbar-width:thin;scrollbar-color:var(--faint) transparent}
.tm-card{position:relative;border:1px solid var(--line);border-radius:8px;padding:8px;cursor:pointer;transition:border-color .2s,transform .2s,background-color .2s}
.tm-card:hover,.tm-card.cur{border-color:var(--accent);background:rgba(var(--particle),.04)}
.tm-card.cur{transform:translateY(-1px);box-shadow:0 0 0 1px var(--accent),0 8px 30px rgba(var(--glow),.12)}
.tm-pv{position:relative;height:74px;border-radius:5px;padding:10px 11px;overflow:hidden;box-shadow:inset 0 0 0 1px rgba(128,128,128,.25)}
.tm-pv::after{content:"";position:absolute;inset:0;background-image:radial-gradient(currentColor .7px,transparent 1px);background-size:9px 9px;opacity:.12;pointer-events:none}
.tm-pv i{display:block;height:5px;border-radius:3px;margin-bottom:7px}
.tm-pv b{position:absolute;right:10px;bottom:10px;width:30px;height:12px;border-radius:2px}
.tm-name{display:flex;justify-content:space-between;align-items:baseline;margin:9px 3px 2px;font:500 13px var(--mono);color:var(--ink)}
.tm-name span{color:var(--accent);visibility:hidden}
.tm-card[aria-selected="true"] .tm-name span{visibility:visible}
.tm-note{margin:0 3px 3px;font:400 11.5px/1.4 var(--mono);color:var(--dim)}
/* paid themes: a small lock and the price while locked ("owned" once bought); nothing else about the card changes */
.tm-name .tm-price{display:inline-flex;align-items:center;gap:5px;margin-left:auto;padding-left:8px;visibility:visible;color:var(--dim);font:400 11px var(--mono);white-space:nowrap}
.tm-name .tm-price span{visibility:visible;color:inherit}
.tm-name .tm-price svg{flex:none}
.tm-card.lk:not([aria-selected="true"]) .tm-name span:not(.tm-price){display:none}
.tm-card[aria-selected="true"] .tm-name .tm-price{display:none}
.tm-foot{display:flex;flex-wrap:wrap;gap:8px 16px;padding:10px 14px;border-top:1px solid var(--line);font:400 11px var(--mono);color:var(--dim)}
@media (max-width:420px){.tm-head .d{display:none}.tm-head span{margin-left:0}}
@media (max-width:640px){.tm-grid{grid-template-columns:1fr 1fr;gap:8px;padding:10px}.tm-pv{height:56px}.tm-foot{display:none}}
@media (prefers-reduced-motion:reduce){.tm-back,.tm-win{animation:none}}

/* ---------- roadmap ---------- */
.track{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:64px;padding-top:30px}
.track::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:linear-gradient(90deg,var(--accent) 0%,var(--accent) 18%,var(--line-strong) 18%)}
.track::after{content:"";position:absolute;top:6px;left:0;width:60px;height:7px;border-radius:4px;background:linear-gradient(90deg,transparent,rgba(var(--glow),.9));filter:drop-shadow(0 0 6px rgba(var(--glow),.9));animation:runline 1.2s cubic-bezier(.2,.8,.2,1) .3s both}
/* once, on load: the glow runs the lit part of the line and goes out where we are (D08: nothing loops) */
@keyframes runline{0%{transform:translateX(-60px);opacity:0}30%{opacity:1}75%{opacity:1}100%{transform:translateX(calc(min(1180px,100vw - 32px)*.18 - 60px));opacity:0}}
.track a{position:relative;display:block;padding-right:24px;text-decoration:none}
.track a::before{content:"";position:absolute;left:0;top:-26px;width:11px;height:11px;border-radius:50%;background:var(--bg);border:1px solid var(--line-strong)}
.track a.now::before{background:var(--accent);border-color:var(--accent);box-shadow:0 0 0 5px rgba(var(--glow),.15),0 0 16px rgba(var(--glow),.8)}
.track b{display:block;font:500 12px var(--mono);color:var(--accent);margin-bottom:6px}
.track span{display:block;font:500 17px/1.35 var(--mono);color:var(--ink)}
.track small{display:block;margin-top:6px;font:400 12.5px var(--mono);color:var(--dim)}
.track a:hover span{color:var(--accent)}
@media (max-width:760px){.track{grid-template-columns:1fr;gap:26px;padding:0 0 0 26px;margin-top:44px}.track::before{left:5px;right:auto;top:0;bottom:0;width:1px;height:auto;background:linear-gradient(var(--accent) 0%,var(--accent) 18%,var(--line-strong) 18%)}.track::after{display:none}.track a::before{left:-26px;top:5px}}

.ms-meter{display:flex;align-items:center;gap:14px;margin:22px 0 0;font:400 12.5px var(--mono);color:var(--dim)}
.ms-meter i{flex:0 0 220px;height:4px;background:var(--faint);border-radius:2px;overflow:hidden}
.ms-meter i::before{content:"";display:block;height:100%;width:calc(var(--p,0)*100%);background:var(--accent);box-shadow:0 0 10px rgba(var(--glow),.7);transform-origin:0 50%;transform:scaleX(0);transition:transform 1.4s cubic-bezier(.2,.8,.2,1)}
.in .ms-meter i::before,.ms-meter.in i::before{transform:scaleX(1)}
.tracks{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.tracks.three{grid-template-columns:repeat(3,1fr)}
.lane h3{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--line-strong);font:500 15px var(--mono);color:var(--ink)}
.lane h3 span{font-weight:400;font-size:12px;color:var(--dim)}
.items{list-style:none;margin:0;padding:0}
.items li{display:grid;grid-template-columns:76px 1fr;gap:14px;padding:13px 0;border-bottom:1px solid var(--line)}
.items .st{font:500 11.5px var(--mono);padding-top:3px;color:var(--dim)}
.items .st.done{color:var(--accent)}
.items .st.now{color:var(--accent2)}
.items .st.now::after{content:"";display:inline-block;width:6px;height:6px;margin-left:6px;border-radius:50%;background:var(--accent2);box-shadow:0 0 8px var(--accent2);animation:blink 1.4s steps(1) infinite;vertical-align:1px}
.items p{margin:0;color:var(--dim);font-size:15px;text-shadow:0 0 4px var(--bg),0 0 12px var(--bg)}
.items p>b:first-child{display:block;color:var(--ink);font:500 14.5px var(--mono);margin-bottom:3px}
.items p b{color:var(--ink);font-weight:500}
.items li.is-done p>b:first-child{color:var(--dim);text-decoration:line-through;text-decoration-color:var(--line-strong)}
.legend{display:flex;flex-wrap:wrap;gap:8px 22px;margin:0 0 30px;font:400 12px var(--mono);color:var(--dim)}
.legend span b{font-weight:500}
@media (max-width:1100px){.tracks.three{grid-template-columns:1fr 1fr}}
@media (max-width:900px){.tracks,.tracks.three{grid-template-columns:1fr}}
@media (max-width:520px){.items li{grid-template-columns:1fr;gap:4px}.ms-meter i{flex-basis:140px}.lane h3{flex-direction:column;align-items:flex-start;gap:2px}}
@media (prefers-reduced-motion:reduce){.track::after{display:none}.ms-meter i::before{transition:none;transform:none}.items .st.now::after{animation:none}}

/* the build section: start contributing, under the four steps */
.build-cta{margin:0 0 20px;flex-wrap:wrap}
@media (max-width:360px){.links{gap:0}.links a{padding:6px 4px}}
.stack-filter{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 22px;font:400 12.5px var(--mono);color:var(--dim)}
.stack-filter button{background:none;border:1px solid var(--line);border-radius:999px;padding:5px 12px;font:inherit;color:var(--dim);cursor:pointer}
.stack-filter button:hover{color:var(--ink);border-color:var(--line-strong)}
.stack-filter button[aria-pressed="true"]{color:var(--bg);background:var(--accent);border-color:var(--accent)}
.items li[hidden]{display:none}
.items .meta{display:block;margin-top:6px;font:400 12px var(--mono);color:var(--dim)}
.items .meta .code{margin-right:10px;padding:1px 7px;border:1px solid var(--line);border-radius:4px}