/* ===========================================================
   Agile Requirements
   Design system ported from "The Story Desk", extended with the
   PennyWise running-example component and a few extra patterns.
   =========================================================== */
:root{
  /* planning room: whiteboard white, marker red, a hint of kraft */
  --bg:#F3F1EB; --surface:#FFFFFF; --surface2:#F7F5F0;
  --ink:#26231E; --ink-soft:#6A6458; --ink-faint:#9C968A;
  --line:#E4E0D6; --line-strong:#CEC8B9;
  --accent:#C7351E; --accent-soft:#F9E4DE; --on-accent:#FFF9F4;
  --sticky:#FFD84D; --sticky-ink:#403100;
  --green:#2E7D4F; --green-soft:#E0EFE3;
  --red:#B33A24; --red-soft:#F7E1DA;
  --marker-blue:#2563A8; --marker-blue-soft:#E1EBF5;
  /* PennyWise — the running example (fintech cyan, threaded throughout) */
  --pw:#0E7490; --pw-ink:#06384A; --pw-soft:#E2F4F8; --pw-line:#B6E0EA;
  --shadow:0 1px 2px rgba(58,50,34,.06), 0 6px 18px rgba(58,50,34,.08);
  --shadow-lift:0 2px 4px rgba(58,50,34,.08), 0 14px 34px rgba(58,50,34,.14);
}
[data-theme="dark"]{
  /* charcoal: neutral grays, no navy, no brown */
  --bg:#18191A; --surface:#222324; --surface2:#2A2B2D;
  --ink:#ECECE9; --ink-soft:#A7A7A1; --ink-faint:#777771;
  --line:#38393B; --line-strong:#4A4B4E;
  --accent:#F2654B; --accent-soft:#3F241E; --on-accent:#1C0F0B;
  --sticky:#FFD84D; --sticky-ink:#403100;
  --green:#6CC08E; --green-soft:#223A2C;
  --red:#E5755C; --red-soft:#3C211B;
  --marker-blue:#79ABD9; --marker-blue-soft:#253340;
  --pw:#3FC7E0; --pw-ink:#CFF3FA; --pw-soft:#11323B; --pw-line:#1E5A68;
  --shadow:0 1px 2px rgba(0,0,0,.35), 0 8px 22px rgba(0,0,0,.4);
  --shadow-lift:0 2px 6px rgba(0,0,0,.4), 0 16px 40px rgba(0,0,0,.5);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  font-family:'Source Sans 3',system-ui,sans-serif;
  background:var(--bg); color:var(--ink);
  line-height:1.65; font-size:16.5px;
  transition:background .25s ease,color .25s ease;
}
::selection{background:var(--sticky);color:var(--sticky-ink)}
a{color:var(--accent)}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px;border-radius:4px}

/* ---------- layout ---------- */
.shell{display:grid;grid-template-columns:264px 1fr;min-height:100vh}
.sidebar{
  position:sticky;top:0;height:100vh;overflow-y:auto;
  border-right:1px solid var(--line);background:var(--surface);
  padding:26px 20px 28px;
  display:flex;flex-direction:column;
}
.sidebar-foot{margin-top:auto;padding-top:24px;display:flex;justify-content:center}
.main{min-width:0}
.content{max-width:1200px;margin:0 auto;padding:0 clamp(24px,4.5vw,64px) 110px}

/* ---------- sidebar ---------- */
.brand{display:flex;align-items:center;gap:10px;margin-bottom:26px;text-decoration:none;color:var(--ink)}
.brand-card{
  width:34px;height:26px;background:var(--sticky);border-radius:3px 3px 4px 4px;
  position:relative;flex-shrink:0;box-shadow:0 1px 0 rgba(0,0,0,.18);transform:rotate(-4deg);
}
.brand-card::before{content:"";position:absolute;left:5px;right:5px;top:7px;height:2px;background:var(--sticky-ink);opacity:.55;border-radius:2px}
.brand-card::after{content:"";position:absolute;left:5px;right:11px;top:12px;height:2px;background:var(--sticky-ink);opacity:.35;border-radius:2px}
.brand b{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:1.05rem;letter-spacing:-.01em;line-height:1.1}
.brand small{display:block;font-size:.68rem;color:var(--ink-faint);font-weight:600;letter-spacing:.09em;text-transform:uppercase}
.nav-group{margin-bottom:18px}
.nav-label{font-size:.66rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-faint);margin:0 10px 6px}
.nav a{
  display:flex;align-items:baseline;gap:8px;padding:6px 10px;border-radius:8px;
  color:var(--ink-soft);text-decoration:none;font-size:.92rem;font-weight:500;
  transition:background .15s,color .15s;
}
.nav a .pno{font-family:'Spline Sans Mono',monospace;font-size:.7rem;color:var(--ink-faint);min-width:18px}
.nav a:hover{background:var(--surface2);color:var(--ink)}
.nav a.active{background:var(--accent-soft);color:var(--accent);font-weight:600}
.nav a.active .pno{color:var(--accent)}
[data-theme="dark"] .nav a.active{background:var(--surface2)}

/* ---------- topbar ---------- */
.topbar{
  position:sticky;top:0;z-index:40;display:none;justify-content:space-between;align-items:center;gap:12px;
  padding:14px 20px;background:color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.menu-btn{display:none}
.theme-toggle{
  display:flex;align-items:center;gap:9px;border:1px solid var(--line-strong);
  background:var(--surface);color:var(--ink);border-radius:999px;
  padding:7px 14px 7px 10px;font:600 .82rem 'Source Sans 3',sans-serif;cursor:pointer;
  box-shadow:var(--shadow);transition:transform .15s, box-shadow .15s;
}
.theme-toggle:hover{transform:translateY(-1px);box-shadow:var(--shadow-lift)}
.theme-toggle svg{width:17px;height:17px}
.theme-toggle .sun{display:none}
[data-theme="dark"] .theme-toggle .sun{display:block}
[data-theme="dark"] .theme-toggle .moon{display:none}

/* ---------- hero ---------- */
.hero{padding:44px 0 80px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:'Spline Sans Mono',monospace;
  font-size:.74rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);
  background:var(--accent-soft);padding:5px 12px;border-radius:999px;margin-bottom:22px;
}
h1{
  font-family:'Bricolage Grotesque',sans-serif;font-weight:800;
  font-size:clamp(2.3rem,4.6vw,3.5rem);line-height:1.06;letter-spacing:-.025em;margin-bottom:20px;
}
.hero-lede{font-size:1.16rem;color:var(--ink-soft);margin-bottom:36px}

/* signature: the fill-in-the-blank story card */
.hero-card{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-lift);padding:30px 34px 26px;position:relative;
}
.hero-card::before{
  content:"";position:absolute;top:-26px;right:36px;width:62px;height:62px;
  background:
    linear-gradient(315deg, rgba(0,0,0,.16) 0 12px, transparent 12.5px),
    linear-gradient(135deg, #FFE680, var(--sticky) 65%);
  transform:rotate(4deg);border-radius:2px 2px 12px 2px;
  box-shadow:0 4px 8px rgba(0,0,0,.18);
}
.hero-card-label{font-family:'Spline Sans Mono',monospace;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:14px}
.story-line{font-family:'Spline Sans Mono',monospace;font-size:clamp(1rem,2vw,1.28rem);line-height:2.15;font-weight:500}
.slot{
  display:inline-block;background:var(--sticky);color:var(--sticky-ink);
  border-radius:6px;padding:1px 10px;font-weight:600;white-space:nowrap;
  box-shadow:inset 0 -2px 0 rgba(0,0,0,.14);cursor:default;
  transition:transform .15s;
}
.slot:hover{transform:rotate(-1.5deg) scale(1.04)}
.hero-card-foot{margin-top:14px;font-size:.86rem;color:var(--ink-soft)}
.hero-card-foot b{color:var(--ink)}

/* ---------- sections ---------- */
section{padding-top:64px;margin-top:64px;border-top:1px solid var(--line)}
section:first-of-type{border-top:none;margin-top:0}
.part-tag{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;
  font-family:'Spline Sans Mono',monospace;font-size:.74rem;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);
}
.part-tag::after{content:"";width:46px;height:1px;background:var(--line-strong)}
h2{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:clamp(1.6rem,3vw,2.15rem);letter-spacing:-.02em;line-height:1.12;margin-bottom:12px}
h2::after{content:"";display:block;width:64px;height:5px;margin-top:10px;background:var(--accent);border-radius:3px 6px 4px 7px / 6px 3px 7px 4px;transform:rotate(-.5deg)}
.section-lede{color:var(--ink-soft);font-size:1.06rem;margin-bottom:44px}
h3{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:1.28rem;letter-spacing:-.01em;margin:54px 0 14px;scroll-margin-top:24px}
h4{font-weight:700;font-size:1rem;margin:28px 0 8px}
p{margin-bottom:14px}
p:last-child{margin-bottom:0}
ul.plain{list-style:none;margin-bottom:14px}
ul.plain li{padding:5px 0 5px 24px;position:relative;color:var(--ink-soft)}
ul.plain li::before{content:"";position:absolute;left:4px;top:.85em;width:8px;height:8px;background:var(--sticky);border-radius:2px;transform:rotate(45deg)}
ul.plain li b{color:var(--ink)}

/* generic panel */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px 24px;box-shadow:var(--shadow);margin-bottom:16px}
.panel h4{margin-top:0}
.panel .soft{font-size:.92rem;color:var(--ink-soft)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}

/* three C's */
.threec{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:26px 0 10px}
.cee{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px;
  box-shadow:var(--shadow);position:relative;
}
.cee .big{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:2rem;color:var(--accent);line-height:1;margin-bottom:8px}
.cee p{font-size:.92rem;color:var(--ink-soft);margin:0}
.cee h4{margin:0 0 6px}

/* callout */
.callout{
  border-left:4px solid var(--sticky);background:var(--surface2);
  border-radius:0 10px 10px 0;padding:16px 20px;margin:28px 0;color:var(--ink-soft);font-size:.98rem;
}
.callout b{color:var(--ink)}

/* ===========================================================
   PennyWise — the running example component
   =========================================================== */
.pw{
  position:relative;background:var(--pw-soft);border:1px solid var(--pw-line);
  border-left:4px solid var(--pw);border-radius:0 12px 12px 0;
  padding:16px 22px 18px;margin:26px 0;color:var(--ink-soft);font-size:.97rem;
}
.pw > :last-child{margin-bottom:0}
.pw-tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:8px;
  font-family:'Spline Sans Mono',monospace;font-size:.66rem;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;color:var(--pw);
}
.pw-tag .pw-chip{
  display:inline-flex;align-items:center;justify-content:center;
  width:18px;height:13px;border-radius:2px;background:var(--pw);
  position:relative;box-shadow:0 1px 0 rgba(0,0,0,.2);
}
.pw-tag .pw-chip::before{content:"";position:absolute;left:3px;top:3px;width:6px;height:4px;border-radius:1px;background:var(--pw-soft);opacity:.85}
.pw b{color:var(--ink)}
.pw code{font-family:'Spline Sans Mono',monospace;font-size:.9em;background:color-mix(in srgb,var(--pw) 14%, transparent);color:var(--ink);padding:.05em .4em;border-radius:4px}
[data-theme="dark"] .pw code{color:var(--pw-ink)}

/* cost of delay */
.cod{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:26px 0;align-items:stretch}
.cod .panel{margin:0;display:flex;flex-direction:column;justify-content:center}
.cod .big-num{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:2.4rem;line-height:1;color:var(--accent)}
.cod .big-num.save{color:var(--green)}
.cod .lab{font-family:'Spline Sans Mono',monospace;font-size:.64rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:8px}
.cod .sub{font-size:.9rem;color:var(--ink-soft);margin-top:8px}

/* planning horizons */
.horizons{display:flex;flex-direction:column;gap:0;margin:26px 0}
.horizon{
  display:grid;grid-template-columns:130px 1fr;gap:18px;align-items:baseline;
  padding:14px 0;border-bottom:1px dashed var(--line-strong);
}
.horizon:last-child{border-bottom:none}
.horizon .lvl{font-family:'Spline Sans Mono',monospace;font-size:.82rem;font-weight:600;color:var(--accent)}
.horizon .lvl span{display:block;font-size:.66rem;color:var(--ink-faint);font-weight:500;margin-top:2px}
.horizon .desc{font-size:.95rem;color:var(--ink-soft)}
.horizon .desc b{color:var(--ink)}

/* SPIDR */
.spidr{display:flex;flex-direction:column;gap:14px;margin:26px 0}
.spidr-row{
  display:grid;grid-template-columns:56px 130px 1fr;gap:18px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px;box-shadow:var(--shadow);
}
.spidr-letter{
  font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:1.9rem;
  color:var(--on-accent);background:var(--accent);border-radius:10px;width:52px;height:52px;
  display:flex;align-items:center;justify-content:center;
}
.spidr-row h4{margin:2px 0 2px}
.spidr-row .what{font-size:.88rem;color:var(--ink-soft)}
.slice-example{font-size:.9rem}
.slice-example .from,.slice-example .to{display:block;padding:3px 0}
.slice-example .tag{
  font-family:'Spline Sans Mono',monospace;font-size:.66rem;font-weight:600;letter-spacing:.08em;
  text-transform:uppercase;border-radius:4px;padding:1px 7px;margin-right:8px;
}
.slice-example .from .tag{background:var(--red-soft);color:var(--red)}
.slice-example .to .tag{background:var(--green-soft);color:var(--green)}
.slice-example .from{color:var(--ink-soft)}

/* vertical vs horizontal */
.vh{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:26px 0}
.vh .panel{margin:0}
.vh .verdict{
  display:inline-block;font-family:'Spline Sans Mono',monospace;font-size:.68rem;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;padding:3px 10px;border-radius:999px;margin-bottom:10px;
}
.vh .good .verdict{background:var(--green-soft);color:var(--green)}
.vh .bad .verdict{background:var(--red-soft);color:var(--red)}
.layers{display:flex;flex-direction:column;gap:4px;margin:12px 0 10px}
.layer{display:flex;gap:4px}
.cell{flex:1;height:18px;border-radius:3px;background:var(--surface2);border:1px solid var(--line)}
.cell.on{background:var(--accent);border-color:var(--accent)}
.layer-name{font-family:'Spline Sans Mono',monospace;font-size:.62rem;color:var(--ink-faint);width:48px;line-height:18px}

/* INVEST */
.invest{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin:26px 0}
.invest-card{
  background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 12px;
  text-align:center;box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s;
}
.invest-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.invest-card .ltr{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:1.6rem;color:var(--accent)}
.invest-card .wd{font-weight:700;font-size:.84rem;margin:2px 0 4px}
.invest-card .ds{font-size:.74rem;color:var(--ink-soft);line-height:1.4}

/* before / after */
.beforeafter{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:24px 0}
.ba{border-radius:10px;padding:16px 18px;font-size:.94rem}
.ba .tag{font-family:'Spline Sans Mono',monospace;font-size:.64rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;display:block;margin-bottom:6px}
.ba.before{background:var(--red-soft);color:var(--red)}
.ba.before .tag{color:var(--red)}
.ba.after{background:var(--green-soft);color:var(--green)}
.ba.after .tag{color:var(--green)}
.ba q{color:var(--ink);font-style:italic}

/* WSJF formula + prioritisation table */
.wsjf-formula{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:18px 22px;margin:22px 0;box-shadow:var(--shadow);
  font-family:'Spline Sans Mono',monospace;font-size:.88rem;color:var(--ink);
}
.wsjf-formula .eq{font-size:1.2rem;color:var(--ink-faint)}
.wsjf-formula .frac{display:inline-flex;flex-direction:column;text-align:center}
.wsjf-formula .num{padding:0 10px 6px;border-bottom:2px solid var(--ink-soft)}
.wsjf-formula .den{padding:6px 10px 0}
.wsjf-formula .plus{color:var(--accent);margin:0 4px}
.wsjf-formula .lead{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:1.05rem}
.wsjf-wrap{overflow-x:auto;margin:24px 0}
.wsjf{
  width:100%;min-width:600px;border-collapse:collapse;background:var(--surface);
  border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);font-size:.92rem;
}
.wsjf thead th{
  background:var(--surface2);font-family:'Spline Sans Mono',monospace;font-size:.64rem;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint);padding:12px 14px;text-align:right;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.wsjf thead th:first-child{text-align:left}
.wsjf tbody td{padding:12px 14px;text-align:right;border-bottom:1px dashed var(--line);color:var(--ink-soft);white-space:nowrap}
.wsjf tbody td:first-child{text-align:left;color:var(--ink);font-weight:600}
.wsjf tbody tr:last-child td{border-bottom:none}
.wsjf .wsjf-score{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:1.05rem;color:var(--ink)}
.wsjf tbody tr.top td{background:var(--pw-soft)}
.wsjf tbody tr.top td:first-child{color:var(--pw-ink)}
.wsjf tbody tr.top .wsjf-score{color:var(--pw)}
.wsjf .rank{
  display:inline-block;margin-left:8px;font-family:'Spline Sans Mono',monospace;font-size:.58rem;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;background:var(--pw);color:var(--on-accent);border-radius:4px;padding:2px 7px;vertical-align:middle;
}

/* breakdown ladder */
.ladder{display:flex;flex-direction:column;gap:0;margin:26px 0}
.rung{
  display:grid;grid-template-columns:110px 1fr;gap:16px;align-items:start;
  padding:14px 0;border-bottom:1px dashed var(--line-strong);
}
.rung:last-child{border-bottom:none}
.rung .lvl{
  font-family:'Spline Sans Mono',monospace;font-size:.78rem;font-weight:600;color:var(--accent);
  padding-top:2px;
}
.rung .desc{font-size:.95rem;color:var(--ink-soft)}
.rung .desc b{color:var(--ink)}
.rung .eg{font-family:'Spline Sans Mono',monospace;font-size:.8rem;color:var(--ink-faint);display:block;margin-top:3px}
.rung .eg.pw{font-family:'Spline Sans Mono',monospace;color:var(--pw);background:none;border:none;border-left:none;padding:0;margin:3px 0 0}

/* example mapping cards */
.emap{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:26px 0}
.ecard{border-radius:8px;padding:14px;font-size:.85rem;box-shadow:var(--shadow);transform:rotate(-.6deg)}
.ecard:nth-child(2){transform:rotate(.8deg)}
.ecard:nth-child(3){transform:rotate(-1deg)}
.ecard:nth-child(4){transform:rotate(.5deg)}
.ecard b{display:block;margin-bottom:4px;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase}
.ecard.y{background:#FFE98A;color:#403100}
.ecard.b{background:#BBD7F7;color:#102A47}
.ecard.g{background:#BCE8CC;color:#103823}
.ecard.r{background:#F6C4BB;color:#4A160D}

/* ---------- format library ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 44px}
.chip-btn{
  border:1px solid var(--line-strong);background:var(--surface);color:var(--ink-soft);
  font:600 .82rem 'Source Sans 3',sans-serif;border-radius:999px;padding:7px 15px;cursor:pointer;
  transition:all .15s;
}
.chip-btn:hover{border-color:var(--accent);color:var(--accent)}
.chip-btn.on{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.fmt-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:26px}
.fmt{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow);position:relative;padding:26px 26px 22px;
  transition:transform .18s, box-shadow .18s, opacity .25s;
  display:flex;flex-direction:column;gap:14px;
}
.fmt:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.fmt::before{ /* category label */
  content:attr(data-tab);
  font-family:'Spline Sans Mono',monospace;font-size:.64rem;font-weight:600;
  letter-spacing:.15em;text-transform:uppercase;color:var(--ink-faint);
}
.fmt[data-cat="user"]::before{color:var(--accent)}
.fmt[data-cat="tech"]::before{color:var(--green)}
.fmt[data-cat="test"]::before{color:#B26224}
[data-theme="dark"] .fmt[data-cat="test"]::before{color:#E0A86A}
.fmt[data-cat="research"]::before{color:#8A4FB5}
[data-theme="dark"] .fmt[data-cat="research"]::before{color:#C49BE2}
.fmt[data-cat="process"]::before{color:var(--marker-blue)}
.fmt h3{margin:0;font-size:1.18rem}
.fmt .what{font-size:.92rem;color:var(--ink-soft)}
.fmt-format{
  font-family:'Spline Sans Mono',monospace;font-size:.86rem;line-height:2;
  background:var(--surface2);border:1px dashed var(--line-strong);border-radius:8px;padding:12px 14px;
}
.fmt-format .slot{font-size:.78rem;padding:0 8px}
.fmt details{border-top:1px solid var(--line);padding-top:10px}
.fmt summary{
  cursor:pointer;font-weight:600;font-size:.84rem;color:var(--accent);list-style:none;
  display:flex;align-items:center;gap:6px;user-select:none;
}
.fmt summary::-webkit-details-marker{display:none}
.fmt summary::before{content:"+";font-family:'Spline Sans Mono',monospace;font-weight:600}
.fmt details[open] summary::before{content:"–"}
.fmt details div{padding-top:10px;font-size:.9rem}
.fmt details ul.plain li{padding:3px 0 3px 22px;font-size:.88rem}
.fmt .eg-label{font-family:'Spline Sans Mono',monospace;font-size:.64rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);display:block;margin:10px 0 4px}
.fmt .eg{font-size:.9rem;font-style:italic;color:var(--ink-soft);border-left:3px solid var(--sticky);padding-left:12px}
.fmt .eg.pw-eg{border-left-color:var(--pw)}
.fmt.hide{display:none}

/* DoR / DoD */
.dod{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:26px 0}
.dod .panel{margin:0}
.check{list-style:none}
.check li{padding:6px 0 6px 30px;position:relative;color:var(--ink-soft);font-size:.94rem;border-bottom:1px dashed var(--line);}
.check li:last-child{border-bottom:none}
.check li::before{
  content:"✓";position:absolute;left:2px;top:5px;color:var(--green);
  font-weight:700;background:var(--green-soft);width:20px;height:20px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;font-size:.74rem;
}

/* anti-patterns */
.anti{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin:26px 0}
.anti .item{
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--red);
  border-radius:8px;padding:16px 18px;font-size:.94rem;color:var(--ink-soft);
}
.anti .item b{color:var(--ink);display:block;margin-bottom:2px}

/* gherkin block */
.gherkin{
  font-family:'Spline Sans Mono',monospace;font-size:.88rem;line-height:1.9;
  background:var(--surface2);border:1px dashed var(--line-strong);border-radius:8px;padding:14px 16px;
}
.gherkin .kw{color:var(--accent);font-weight:600}
.gherkin .rule{color:var(--pw);font-weight:600}
/* inside a PennyWise callout, match the white inset used by .panel */
.pw .gherkin{background:var(--surface);border-color:var(--pw-line)}

/* figure captions */
.fig-cap{font-size:.82rem;color:var(--ink-faint);margin-top:14px;font-style:italic}

/* journey map */
.jmap{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px 22px;box-shadow:var(--shadow);margin:28px 0;overflow-x:auto}
.jmap-grid{display:grid;grid-template-columns:108px repeat(5,minmax(140px,1fr));min-width:820px}
.jmap-grid > div{padding:11px 12px;border-bottom:1px dashed var(--line);font-size:.86rem;color:var(--ink-soft)}
.jmap-grid > div:nth-last-child(-n+6){border-bottom:none}
.jmap .rowlab{font-family:'Spline Sans Mono',monospace;font-size:.64rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);padding-top:14px}
.jmap .phase{font-weight:700;color:var(--ink);background:var(--surface2);border-bottom:3px solid var(--accent);font-size:.9rem}
.jmap .emoline{grid-column:2 / -1;padding:4px 0}
.jmap .emoline svg{width:100%;height:72px;display:block}
.jmap .chip{display:inline-block;background:var(--surface2);border:1px solid var(--line-strong);border-radius:999px;padding:2px 10px;font-size:.76rem;margin:2px 3px 2px 0;color:var(--ink-soft);white-space:nowrap}
.jmap .chip.opp{background:var(--sticky);color:var(--sticky-ink);border-color:transparent;font-weight:600}

/* story map */
.smap{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px;box-shadow:var(--shadow);margin:28px 0;overflow-x:auto}
.smap-inner{min-width:680px}
.s-activity{background:var(--accent);color:var(--on-accent);font-weight:700;border-radius:8px;padding:9px 16px;text-align:center;margin-bottom:12px;font-size:.92rem;letter-spacing:.01em}
.s-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.s-task{background:var(--marker-blue-soft);color:var(--marker-blue);font-weight:700;border-radius:8px;padding:8px 12px;text-align:center;font-size:.86rem}
.s-band{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:18px 0 8px;border-top:2px dashed var(--line-strong);margin-top:16px;position:relative}
.s-band::before{content:attr(data-rel);position:absolute;top:-9px;left:0;font-family:'Spline Sans Mono',monospace;font-size:.62rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;background:var(--surface);padding:0 10px 0 0;color:var(--ink-faint)}
.s-story{background:var(--sticky);color:var(--sticky-ink);border-radius:4px;padding:9px 12px;font-size:.82rem;font-weight:600;box-shadow:0 1px 2px rgba(0,0,0,.18);transform:rotate(-.5deg)}
.s-story:nth-child(2){transform:rotate(.6deg)}
.s-story:nth-child(3){transform:rotate(-.8deg)}
.s-band[data-rel="Future"] .s-story{opacity:.65}

/* impact map tree */
.imap{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px 26px;box-shadow:var(--shadow);margin:28px 0;overflow-x:auto}
.tree, .tree ul{list-style:none;margin:0}
.tree{min-width:560px}
.tree ul{padding-left:38px;position:relative}
.tree li{position:relative;padding:7px 0}
.tree ul li::before{content:"";position:absolute;left:-24px;top:-8px;height:calc(50% + 8px);width:20px;border-left:2px solid var(--line-strong);border-bottom:2px solid var(--line-strong);border-radius:0 0 0 9px}
.tree ul li:not(:last-child)::after{content:"";position:absolute;left:-24px;top:50%;bottom:-8px;border-left:2px solid var(--line-strong)}
.tree .node{display:inline-flex;align-items:center;gap:9px;background:var(--surface2);border:1px solid var(--line);border-radius:8px;padding:6px 13px 6px 7px;font-size:.88rem;font-weight:600}
.tree .tag{font-family:'Spline Sans Mono',monospace;font-size:.6rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;border-radius:5px;padding:3px 8px}
.tree .t-goal{background:var(--accent);color:var(--on-accent)}
.tree .t-actor{background:var(--marker-blue-soft);color:var(--marker-blue)}
.tree .t-impact{background:var(--green-soft);color:var(--green)}
.tree .t-what{background:var(--sticky);color:var(--sticky-ink)}

/* closing statement */
.closing{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-lift);padding:clamp(30px,5vw,56px);margin-top:48px;position:relative;
}
.closing::before{
  content:"";position:absolute;top:-28px;left:50%;transform:translateX(-50%) rotate(3deg);
  width:58px;height:58px;
  background:
    linear-gradient(315deg, rgba(0,0,0,.16) 0 11px, transparent 11.5px),
    linear-gradient(135deg, #FFE680, var(--sticky) 65%);
  border-radius:2px 2px 12px 2px;box-shadow:0 4px 8px rgba(0,0,0,.18);
}
.closing-quote{
  font-family:'Bricolage Grotesque',sans-serif;font-weight:800;letter-spacing:-.02em;
  font-size:clamp(1.7rem,3.6vw,2.7rem);line-height:1.15;margin-bottom:16px;
}
.closing-quote em{font-style:normal;color:var(--accent)}
.closing-lede{font-size:1.08rem;color:var(--ink-soft);margin-bottom:30px}
.principles{display:grid;grid-template-columns:repeat(auto-fit,minmax(195px,1fr));gap:20px}
.principle{border-top:4px solid var(--accent);padding-top:12px}
.principle b{display:block;font-size:1rem;margin-bottom:3px}
.principle span{font-size:.88rem;color:var(--ink-soft);line-height:1.5}

/* citations */
footer{border-top:1px solid var(--line);margin-top:88px;padding:44px 0 0;color:var(--ink-soft);font-size:.95rem}
footer h3{margin-top:0}
.cites{list-style:none;margin-top:18px;line-height:1.75}
.cites li{padding:5px 0 5px 1.6em;text-indent:-1.6em}
.cites b{color:var(--ink)}
.cites a{font-weight:600;text-decoration-thickness:1px;text-underline-offset:3px}
.cites i{color:var(--ink-soft)}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .shell{grid-template-columns:1fr}
  .sidebar{
    position:fixed;left:0;top:0;bottom:0;width:280px;z-index:60;height:100dvh;
    transform:translateX(-102%);transition:transform .25s ease;box-shadow:var(--shadow-lift);
  }
  .sidebar.open{transform:translateX(0)}
  .scrim{position:fixed;inset:0;background:rgba(10,15,20,.45);z-index:55;opacity:0;pointer-events:none;transition:opacity .25s}
  .scrim.show{opacity:1;pointer-events:auto}
  .topbar{display:flex}
  .menu-btn{
    display:flex;align-items:center;gap:8px;border:1px solid var(--line-strong);background:var(--surface);
    color:var(--ink);border-radius:10px;padding:8px 13px;font:600 .82rem 'Source Sans 3',sans-serif;cursor:pointer;box-shadow:var(--shadow);
  }
  .grid-2,.grid-3,.threec,.vh,.dod,.cod,.beforeafter{grid-template-columns:1fr}
  .invest{grid-template-columns:repeat(3,1fr)}
  .emap{grid-template-columns:repeat(2,1fr)}
  .spidr-row{grid-template-columns:46px 1fr;grid-template-rows:auto auto}
  .spidr-row .slice-example{grid-column:1 / -1}
}
@media (max-width:520px){
  .invest{grid-template-columns:repeat(2,1fr)}
  .horizon{grid-template-columns:1fr}
}