/* Overcite — stylesheet
   Identity: the citation. Ink-navy editorial ground, cobalt links,
   citation-amber highlight. Bracketed [n] markers as the signature. */

:root{
  --ink:#111a2b;          /* deep blue-ink text */
  --ink-soft:#3a4658;     /* secondary text */
  --muted:#6b7688;        /* captions */
  --paper:#f4f5f2;        /* cool off-white ground (not cream) */
  --paper-2:#ffffff;      /* cards */
  --line:#d7dae0;         /* hairlines */
  --line-soft:#e6e8ec;
  --cobalt:#1f45c4;       /* links / primary structure */
  --cobalt-ink:#16309a;
  --amber:#e7a233;        /* citation highlight — "you got cited" */
  --amber-wash:#fbeecb;
  --burn:#b23b2e;         /* things that get you burned */
  --burn-wash:#f6e4e1;
  --ok:#1f7a53;
  --ok-wash:#e0efe7;
  --shadow:0 1px 2px rgba(17,26,43,.05), 0 8px 30px rgba(17,26,43,.06);
  --radius:10px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:19px;line-height:1.62;
  font-variation-settings:"opsz" 20;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--cobalt);text-underline-offset:2px;text-decoration-thickness:1px}
a:hover{color:var(--cobalt-ink)}

/* ---------- type ---------- */
h1,h2,h3,.brand,.eyebrow,.chip,.nav a,.btn,th,.mark,.tag{
  font-family:"Space Grotesk",system-ui,sans-serif;
}
h1{font-size:clamp(2.1rem,5.2vw,3.4rem);line-height:1.04;font-weight:700;letter-spacing:-.02em;margin:.2em 0 .3em}
h2{font-size:clamp(1.5rem,3.4vw,2.05rem);line-height:1.12;font-weight:700;letter-spacing:-.015em;margin:2.4em 0 .5em}
h3{font-size:1.2rem;font-weight:600;letter-spacing:-.01em;margin:1.8em 0 .3em}
p{margin:.75em 0}
.lede{font-size:1.22rem;color:var(--ink-soft);line-height:1.5}
.eyebrow{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:600}
strong{font-weight:600}
code,kbd,.mono{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.86em}
:not(pre)>code{background:#eceef1;border:1px solid var(--line-soft);border-radius:5px;padding:.06em .35em}

/* ---------- citation marker signature ---------- */
.cite{
  font-family:"IBM Plex Mono",monospace;font-weight:500;font-size:.78em;
  color:var(--cobalt);white-space:nowrap;
}
.cite::before{content:"["}
.cite::after{content:"]"}
.phase-n{
  font-family:"IBM Plex Mono",monospace;font-weight:500;
  color:var(--amber);background:#20304d;border-radius:6px;
  padding:.12em .5em;font-size:.8rem;display:inline-block;letter-spacing:.02em;
}
.phase-n::before{content:"["}
.phase-n::after{content:"]"}

/* ---------- layout ---------- */
.wrap{max-width:760px;margin:0 auto;padding:0 22px}
.wide{max-width:1080px;margin:0 auto;padding:0 22px}
section{margin:0}
hr{border:none;border-top:1px solid var(--line);margin:2.4em 0}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;background:rgba(244,245,242,.85);
  backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--line);
}
.nav-in{display:flex;align-items:center;gap:20px;max-width:1080px;margin:0 auto;padding:11px 22px}
.brand{font-weight:700;font-size:1.12rem;letter-spacing:-.02em;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:.42em}
.brand .b-mark{color:var(--cobalt);font-family:"IBM Plex Mono",monospace;font-weight:500}
.nav-links{display:flex;gap:16px;margin-left:auto;flex-wrap:wrap}
.nav a{font-size:.83rem;font-weight:500;color:var(--ink-soft);text-decoration:none}
.nav a:hover,.nav a[aria-current]{color:var(--cobalt)}

/* ---------- hero ---------- */
.hero{padding:56px 0 22px}
.hero .eyebrow{margin-bottom:.6em}
.answercard{
  background:#0e1728;color:#e7ecf4;border-radius:14px;padding:22px 22px 18px;
  box-shadow:0 18px 50px rgba(14,23,40,.22);margin:26px 0 6px;
  border:1px solid #22314f;
}
.answercard .q{font-family:"IBM Plex Mono",monospace;font-size:.82rem;color:#8fa3c4;margin:0 0 12px}
.answercard .q::before{content:"⌕  ";color:#5f75a0}
.answercard .a{font-family:"Source Serif 4",serif;font-size:1.02rem;line-height:1.5;color:#eaf0f8;margin:0}
.answercard .a b{color:#fff;font-weight:600}
.srcchip{
  display:inline-flex;align-items:center;gap:.4em;vertical-align:baseline;
  font-family:"IBM Plex Mono",monospace;font-size:.72em;font-weight:500;
  color:#0e1728;background:var(--amber);border-radius:5px;padding:.05em .45em;margin-left:.15em;
  transform:translateY(-1px);
}
.srccard{
  margin-top:14px;border-top:1px dashed #2d3d5e;padding-top:12px;
  display:flex;align-items:center;gap:10px;font-size:.82rem;color:#aebdd6;
}
.srccard .dot{width:26px;height:26px;border-radius:6px;background:var(--amber);color:#0e1728;
  font-family:"IBM Plex Mono",monospace;font-weight:600;display:grid;place-items:center;font-size:.8rem;flex:none}
.srccard b{color:#eaf0f8;font-weight:600}

/* ---------- front-loaded answer box ---------- */
.tldr{
  background:var(--paper-2);border:1px solid var(--line);border-left:4px solid var(--cobalt);
  border-radius:var(--radius);padding:16px 20px;margin:20px 0;box-shadow:var(--shadow);
}
.tldr .tag{font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--cobalt);font-weight:600}
.tldr p{margin:.35em 0 0;font-size:1.02rem}

/* ---------- callouts ---------- */
.callout{border-radius:var(--radius);padding:14px 18px;margin:20px 0;border:1px solid var(--line);background:var(--paper-2)}
.callout .tag{font-family:"Space Grotesk",sans-serif;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;font-weight:600;display:block;margin-bottom:.2em}
.callout p{margin:.25em 0;font-size:.96rem}
.callout.burn{background:var(--burn-wash);border-color:#e6c3bd}
.callout.burn .tag{color:var(--burn)}
.callout.win{background:var(--ok-wash);border-color:#c2ddce}
.callout.win .tag{color:var(--ok)}
.callout.note{background:var(--amber-wash);border-color:#ecd6a4}
.callout.note .tag{color:#9a6a13}

/* ---------- prompt block ---------- */
.prompt{position:relative;background:#0e1728;border-radius:var(--radius);margin:18px 0;overflow:hidden;border:1px solid #22314f}
.prompt .p-head{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 14px;background:#0b1220;border-bottom:1px solid #1c2b48}
.prompt .p-title{font-family:"IBM Plex Mono",monospace;font-size:.74rem;color:#8fa3c4;letter-spacing:.02em}
.prompt .p-title b{color:#e7a233;font-weight:500}
.prompt pre{margin:0;padding:15px 16px;overflow-x:auto;color:#dbe4f2;
  font-family:"IBM Plex Mono",monospace;font-size:.8rem;line-height:1.55;white-space:pre-wrap}
.copy{font-family:"Space Grotesk",sans-serif;font-size:.72rem;font-weight:600;color:#0e1728;
  background:#e7a233;border:none;border-radius:6px;padding:.32em .7em;cursor:pointer;flex:none}
.copy:hover{background:#f2b441}
.copy.done{background:#7fb79b;color:#06210f}

/* ---------- tables ---------- */
.tbl{width:100%;border-collapse:collapse;margin:20px 0;font-size:.92rem;
  font-family:"Source Serif 4",serif;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.tbl th{font-family:"Space Grotesk",sans-serif;font-size:.74rem;letter-spacing:.04em;text-transform:uppercase;
  text-align:left;background:#eef0f3;color:var(--ink-soft);padding:10px 13px;border-bottom:1px solid var(--line)}
.tbl td{padding:11px 13px;border-bottom:1px solid var(--line-soft);vertical-align:top}
.tbl tr:last-child td{border-bottom:none}
.tbl td code{font-size:.82em}

/* ---------- phase cards (pillar) ---------- */
.phases{display:grid;gap:14px;margin:22px 0}
.pcard{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;
  text-decoration:none;color:inherit;transition:border-color .15s,transform .15s,box-shadow .15s}
.pcard:hover{border-color:var(--cobalt);transform:translateY(-1px);box-shadow:var(--shadow)}
.pcard h3{margin:.05em 0 .15em}
.pcard p{margin:0;font-size:.94rem;color:var(--ink-soft)}
.pcard .go{font-family:"Space Grotesk",sans-serif;font-size:.8rem;color:var(--cobalt);font-weight:600;margin-top:.5em;display:inline-block}

/* ---------- disciplines mini-grid ---------- */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0}
.trio .t{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);padding:15px 16px}
.trio .t h3{margin:0 0 .2em;font-size:1rem}
.trio .t p{margin:0;font-size:.88rem;color:var(--ink-soft)}
.trio .t .mono{display:block;color:var(--muted);font-size:.72rem;margin-top:.5em}

/* ---------- toc ---------- */
.toc{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;margin:22px 0}
.toc .tag{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600;font-family:"Space Grotesk",sans-serif}
.toc ol{margin:.4em 0 0;padding-left:1.2em}
.toc li{margin:.2em 0;font-size:.94rem}

/* ---------- faq ---------- */
.faq details{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper-2);margin:10px 0;padding:0 18px}
.faq summary{cursor:pointer;padding:14px 0;font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:1rem;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";color:var(--cobalt);font-weight:700;margin-right:.5em}
.faq details[open] summary::before{content:"–"}
.faq details[open] summary{border-bottom:1px solid var(--line-soft)}
.faq details p{font-size:.96rem;padding-bottom:14px;margin:.6em 0 0}

/* ---------- steps ---------- */
.steps{counter-reset:s;margin:20px 0;padding:0;list-style:none}
.steps li{position:relative;padding:2px 0 16px 44px;margin:0}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:0;
  width:29px;height:29px;border-radius:8px;background:#20304d;color:var(--amber);
  font-family:"IBM Plex Mono",monospace;font-size:.82rem;display:grid;place-items:center}
.steps li::after{content:"";position:absolute;left:14px;top:32px;bottom:2px;width:1px;background:var(--line)}
.steps li:last-child::after{display:none}
.steps li b{font-family:"Space Grotesk",sans-serif}

/* ---------- meta / breadcrumb / author ---------- */
.crumb{font-size:.8rem;color:var(--muted);font-family:"Space Grotesk",sans-serif;margin:26px 0 0}
.crumb a{color:var(--muted)}
.updated{font-family:"Space Grotesk",sans-serif;font-size:.76rem;color:var(--muted);display:inline-flex;align-items:center;gap:.5em;
  border:1px solid var(--line);border-radius:20px;padding:.2em .8em;background:var(--paper-2)}
.updated .dotlive{width:7px;height:7px;border-radius:50%;background:var(--ok)}
.byline{display:flex;align-items:center;gap:12px;margin:22px 0;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.byline .av{width:40px;height:40px;border-radius:9px;background:linear-gradient(135deg,#1f45c4,#0e1728);color:#fff;
  display:grid;place-items:center;font-family:"Space Grotesk",sans-serif;font-weight:700;flex:none}
.byline .n{font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:.92rem}
.byline .r{font-size:.8rem;color:var(--muted)}

/* ---------- next / prev nav ---------- */
.pager{display:flex;gap:12px;margin:34px 0 0;flex-wrap:wrap}
.pager a{flex:1 1 220px;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;text-decoration:none;color:inherit}
.pager a:hover{border-color:var(--cobalt)}
.pager .k{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-family:"Space Grotesk",sans-serif}
.pager .t{font-family:"Space Grotesk",sans-serif;font-weight:600;margin-top:.15em;display:block}

/* ---------- buttons ---------- */
.btn{display:inline-block;background:var(--cobalt);color:#fff;text-decoration:none;font-weight:600;font-size:.9rem;
  padding:.6em 1.15em;border-radius:8px;border:1px solid var(--cobalt)}
.btn:hover{background:var(--cobalt-ink);color:#fff}
.btn.ghost{background:transparent;color:var(--cobalt)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}

/* ---------- footer ---------- */
.foot{margin-top:64px;border-top:1px solid var(--line);background:#0e1728;color:#aebdd6}
.foot-in{max-width:1080px;margin:0 auto;padding:34px 22px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:26px}
.foot a{color:#cdd8ea;text-decoration:none;font-size:.86rem;display:block;margin:.32em 0}
.foot a:hover{color:#fff}
.foot .brand{color:#fff;margin-bottom:.4em}
.foot .b-mark{color:var(--amber)}
.foot h4{font-family:"Space Grotesk",sans-serif;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:#7f92b3;margin:0 0 .3em}
.foot .fine{grid-column:1/-1;border-top:1px solid #1c2b48;margin-top:8px;padding-top:16px;font-size:.78rem;color:#7f92b3}
.foot .fine b{color:#aebdd6;font-weight:500}

/* ---------- misc ---------- */
.kicker-list{list-style:none;padding:0;margin:18px 0}
.kicker-list li{padding:10px 0;border-bottom:1px solid var(--line-soft);display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:baseline}
.kicker-list li:last-child{border:none}
.kicker-list .num{font-family:"IBM Plex Mono",monospace;color:var(--amber);background:#20304d;border-radius:6px;padding:.1em .5em;font-size:.78rem}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px;border-radius:4px}

@media (max-width:720px){
  body{font-size:17.5px}
  .trio{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr 1fr}
  .pcard{grid-template-columns:1fr}
  .nav-links{display:none}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ================= 2026 refresh: calm-mode enhancements ================= */
/* Modern type wrapping */
h1,h2,h3{text-wrap:balance}
p,li,.lede{text-wrap:pretty}

/* Purposeful micro-interactions */
a{transition:color .15s ease}
.btn{transition:transform .16s ease, box-shadow .16s ease, background .16s ease}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}

/* Accessible focus */
:focus-visible{outline:2px solid var(--cobalt);outline-offset:2px;border-radius:3px}

/* Reading progress (motion that explains; pure CSS, progressive) */
@media (prefers-reduced-motion: no-preference){
  @supports (animation-timeline: scroll()){
    body::before{content:"";position:fixed;top:0;left:0;height:3px;width:100%;
      background:var(--amber);transform-origin:0 50%;transform:scaleX(0);z-index:999;
      animation:beprog linear both;animation-timeline:scroll(root)}
    @keyframes beprog{to{transform:scaleX(1)}}
  }
}
/* Smooth cross-page transitions (progressive) */
@view-transition{navigation:auto}
@media (prefers-reduced-motion: no-preference){
  ::view-transition-old(root),::view-transition-new(root){animation-duration:.18s}
}
/* Respect reduced motion globally */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* ---------------- Dark mode (system preference) ---------------- */
:root{color-scheme:light dark}
@media (prefers-color-scheme: dark){
  :root{
    --ink:#e8ecf5; --ink-soft:#bac3d6; --muted:#8c96ab;
    --paper:#0d1322; --paper-2:#151c30;
    --line:#2a3450; --line-soft:#202a42;
    --cobalt:#8aa3f2; --cobalt-ink:#b1c1f7;
    --amber:#f2b441; --amber-wash:#33290f;
    --burn:#e4796a; --burn-wash:#391d17;
    --ok:#54c893; --ok-wash:#123120;
    --shadow:0 1px 2px rgba(0,0,0,.35), 0 10px 34px rgba(0,0,0,.4);
  }
  :not(pre)>code{background:#1b2440;border-color:var(--line-soft)}
  th{background:var(--paper-2)}
  .btn{background:#2c55d8}
  .btn:hover{background:#3a63e6}
  .btn.ghost{background:transparent;color:var(--cobalt);border-color:var(--cobalt)}
}