/* Decision OS — site tokens. Cool ledger paper, deep green ink; red means a criterion tripped, green means it holds,
   blue marks anything you can verify (hashes, links). One family (Schibsted Grotesk); Plex Mono only for hashes/code. */
:root {
  --paper: #f2f4f1; --card: #ffffff; --ink: #17221d; --mute: #5b6660; --rule: #d5dbd6;
  --ok: #2f6b4f; --trip: #b3261e; --verify: #3446b8; --wash: #e6ebe7;
  --measure: 68ch;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #0f1513; --card: #151d1a; --ink: #e7ece8; --mute: #93a09a; --rule: #26302c;
          --ok: #6fc49b; --trip: #f2877e; --verify: #9aa8ff; --wash: #1a2420; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink);
       font: 17px/1.6 "Schibsted Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--verify); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--verify); outline-offset: 2px; }
code, .hash { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: .86em; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
header.top { display: flex; justify-content: space-between; align-items: center; padding: 22px 0; }
.mark { font-weight: 800; letter-spacing: -.01em; font-size: 19px; color: var(--ink); text-decoration: none; }
.mark span { color: var(--trip); }
nav a { color: var(--ink); margin-left: 22px; text-decoration: none; font-size: 15px; }
nav a:hover { text-decoration: underline; }
h1 { font-size: clamp(38px, 6vw, 64px); line-height: 1.02; letter-spacing: -.025em; font-weight: 800; margin: 0 0 22px; max-width: 14ch; }
h2 { font-size: clamp(26px, 3.4vw, 36px); line-height: 1.1; letter-spacing: -.015em; font-weight: 800; margin: 0 0 14px; max-width: 24ch; }
h3 { font-size: 19px; line-height: 1.3; margin: 0 0 6px; font-weight: 700; }
p { max-width: var(--measure); margin: 0 0 14px; }
.lede { font-size: 20px; color: var(--mute); max-width: 46ch; }
.mute { color: var(--mute); }
.small { font-size: 14px; }
section { padding: 72px 0; border-top: 1px solid var(--rule); }

/* hero */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; padding: 40px 0 88px; }
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; gap: 36px; } nav a.hide-sm { display: none; } }

/* the tripwire card — the one memorable thing */
.wire { background: var(--card); border: 1px solid var(--rule); border-radius: 14px; padding: 22px 22px 18px; position: relative; }
.wire .who { font-size: 13px; color: var(--mute); margin-bottom: 4px; }
.wire .title { font-weight: 700; font-size: 17px; line-height: 1.3; margin-bottom: 16px; }
.wire .crit { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; padding: 12px 0;
              border-top: 1px solid var(--rule); }
.wire .crit p { margin: 0; font-size: 15px; }
.wire .q { font-size: 15px; }
.state { font-size: 13px; font-weight: 700; padding: 3px 10px; border-radius: 99px; border: 1.5px solid currentColor; white-space: nowrap; }
.state.ok { color: var(--ok); } .state.trip { color: var(--trip); } .state.manual { color: var(--mute); }
.line { position: relative; height: 18px; margin: 4px 0 14px; }
.line svg { width: 100%; height: 18px; display: block; overflow: visible; }
.line .l, .line .r { stroke: var(--ok); stroke-width: 2; transform-box: fill-box;
                     transition: transform .6s cubic-bezier(.3,1.6,.5,1), stroke .2s; }
.line .l { transform-origin: left center; } .line .r { transform-origin: right center; }
.snapped .line .l { transform: rotate(1.6deg) translateX(-8px); stroke: var(--trip); }
.snapped .line .r { transform: rotate(-1.6deg) translateX(8px); stroke: var(--trip); }
.evidence { font-size: 14px; background: var(--wash); border-radius: 10px; padding: 12px 14px; margin-top: 4px;
            opacity: 0; transform: translateY(4px); transition: opacity .4s .35s, transform .4s .35s; }
.snapped .evidence { opacity: 1; transform: none; }
.evidence b { font-weight: 700; }
.evidence .hash { color: var(--verify); }
@media (prefers-reduced-motion: reduce) { .line .l, .line .r, .evidence { transition: none; } }

/* forms */
form.join { display: grid; grid-template-columns: 1fr auto; gap: 10px; max-width: 480px; margin-top: 26px; }
form.join select { grid-column: 1 / -1; }
input, select, textarea { font: inherit; color: var(--ink); background: var(--card); border: 1.5px solid var(--rule);
                          border-radius: 10px; padding: 12px 14px; width: 100%; }
button { font: inherit; font-weight: 700; background: var(--ink); color: var(--paper); border: 0; border-radius: 10px;
         padding: 12px 20px; cursor: pointer; }
button:hover { opacity: .9; }
.msg { min-height: 1.5em; font-size: 15px; margin-top: 8px; }
.msg.err { color: var(--trip); } .msg.good { color: var(--ok); }
.hp { position: absolute; left: -9999px; }

/* how it works — a real sequence, so it is numbered */
ol.steps { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px;
           counter-reset: s; }
ol.steps li { counter-increment: s; border-top: 3px solid var(--ink); padding-top: 12px; }
ol.steps li::before { content: counter(s); font-weight: 800; font-size: 28px; line-height: 1; display: block; margin-bottom: 8px; }
ol.steps li p { font-size: 15px; color: var(--mute); margin: 0; }
@media (max-width: 860px) { ol.steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { ol.steps { grid-template-columns: 1fr; } }

/* criteria library */
.lib { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 36px; margin-top: 26px; }
.lib div { padding: 14px 0; border-top: 1px solid var(--rule); }
.lib h3 { font-size: 16px; } .lib p { font-size: 14px; color: var(--mute); margin: 0; }
@media (max-width: 860px) { .lib { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .lib { grid-template-columns: 1fr; } }

/* two-column prose + aside */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
pre { background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 16px; overflow-x: auto;
      font-size: 13.5px; line-height: 1.55; margin: 0; }

/* plans */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 26px; }
.plan { background: var(--card); border: 1px solid var(--rule); border-radius: 14px; padding: 24px; }
.plan .price { font-size: 30px; font-weight: 800; letter-spacing: -.01em; margin: 6px 0 2px; }
.plan ul { padding-left: 18px; margin: 14px 0 0; font-size: 15px; }
.plan li { margin: 4px 0; }
@media (max-width: 760px) { .plans { grid-template-columns: 1fr; } }

ul.never { list-style: none; padding: 0; margin: 20px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 40px; }
ul.never li { padding-left: 26px; position: relative; max-width: 44ch; }
ul.never li::before { content: ""; position: absolute; left: 0; top: .55em; width: 14px; height: 2px; background: var(--trip); }
@media (max-width: 760px) { ul.never { grid-template-columns: 1fr; } }

/* case-study timeline (a real sequence of dates) */
.tl { list-style: none; padding: 0; margin: 28px 0 0; border-left: 2px solid var(--rule); }
.tl li { position: relative; padding: 0 0 26px 26px; max-width: 72ch; }
.tl li::before { content: ""; position: absolute; left: -7px; top: 6px; width: 12px; height: 12px; border-radius: 50%;
                 background: var(--paper); border: 2px solid var(--ink); }
.tl li.trip::before { border-color: var(--trip); background: var(--trip); }
.tl li.fix::before { border-color: var(--verify); }
.tl .when { font-weight: 700; }
table.runway { border-collapse: collapse; width: 100%; max-width: 640px; margin: 14px 0; font-size: 15px; }
table.runway th, table.runway td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--rule); }
table.runway td.n { text-align: right; font-variant-numeric: tabular-nums; }
table.runway th { font-weight: 700; }
.verifybox { background: var(--card); border: 1.5px solid var(--verify); border-radius: 14px; padding: 20px; margin-top: 20px; }
.verifybox ol { margin: 10px 0 0; padding-left: 20px; font-size: 14px; }
.verifybox .ok { color: var(--ok); font-weight: 700; } .verifybox .bad { color: var(--trip); font-weight: 700; }

footer { padding: 40px 0 60px; border-top: 1px solid var(--rule); font-size: 14px; color: var(--mute); }
footer p { max-width: 90ch; }