/* Sieve, in the NEAR Hackathon's visual language: parchment, ink, a blue band, and dot-matrix numbers. */
:root {
  --paper: #E7DFCA; --card: #EEE7D6; --ink: #322E25; --soft: #655D4F; --line: #B7AC94; --grid: #DCD2BA;
  --blue: #0091FD; --deep: #005FB0; --sky: #83DCFF; --fail: #B53124; --on-blue: #FFF7E9;
  --mono: "IBM Plex Mono", ui-monospace, monospace; --pixel: "Pixelify Sans", var(--mono);
  --head: "Arial Black", "Helvetica Neue", Arial, sans-serif;
  --gutter: clamp(20px, 6vw, 88px); --wrap: 1200px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #161A15; --card: #1C211A; --ink: #E9E1CD; --soft: #B0B29D; --line: #4A5241; --grid: #2C3327;
    --deep: #83DCFF; --fail: #FF8B84; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #161A15; --card: #1C211A; --ink: #E9E1CD; --soft: #B0B29D; --line: #4A5241; --grid: #2C3327;
  --deep: #83DCFF; --fail: #FF8B84; color-scheme: dark;
}
* { box-sizing: border-box; }
html { background: var(--paper); }
body { margin: 0; color: var(--ink); background: var(--paper); font: 400 15px/1.65 var(--mono); }
a { color: inherit; text-decoration-color: var(--line); text-underline-offset: 3px; }
a:hover { color: var(--deep); text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
code { font-family: var(--mono); font-size: .92em; }

/* Header */
.top { position: sticky; top: 0; z-index: 5; background: var(--paper); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 28px; max-width: var(--wrap); margin: 0 auto; padding: 14px var(--gutter); flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 500 22px/1 var(--pixel); letter-spacing: .02em; }
.brand svg { display: block; }
.top nav { display: flex; gap: 22px; flex: 1; font-size: 13px; font-weight: 500; }
.top nav a { text-decoration: none; white-space: nowrap; }
@media (max-width: 640px) {
  .top-in { gap: 10px 14px; padding: 12px var(--gutter); }
  .top nav { order: 3; flex-basis: 100%; gap: 18px; }
  .brand { flex: 1; }
}
.top nav a[aria-current] { text-decoration: underline; text-decoration-color: var(--blue); text-decoration-thickness: 2px; }
.wallet, button, .button { font: 500 13px var(--mono); color: var(--ink); background: transparent; border: 1px solid var(--ink);
  border-radius: 0; padding: 9px 16px; cursor: pointer; text-decoration: none; display: inline-block; }
.wallet[data-on] { border-color: var(--deep); color: var(--deep); }
button.primary, .button.primary { background: var(--deep); border-color: var(--deep); color: var(--on-blue); }
:root[data-theme="dark"] button.primary { color: #161A15; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) button.primary { color: #161A15; } }
button:disabled { opacity: .5; cursor: progress; }
.theme { width: 38px; height: 38px; padding: 0; background: var(--ink); color: var(--paper); border-color: var(--ink); font-size: 16px; }

/* Layout */
main { max-width: var(--wrap); margin: 0 auto; padding: 8px var(--gutter) 72px; }
.section { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.wide { max-width: none; padding: 0; }
.idx { font-size: 12px; color: var(--deep); font-weight: 500; margin: 0 0 14px; }
h1 { font: 900 clamp(38px, 7vw, 84px)/.95 var(--head); letter-spacing: -.045em; text-transform: uppercase; margin: 48px 0 18px; max-width: 14ch; }
h1.page { font-size: clamp(30px, 4.6vw, 52px); max-width: 22ch; margin-top: 36px; }
h2 { font: 900 clamp(24px, 3.2vw, 34px)/1 var(--head); letter-spacing: -.035em; text-transform: uppercase; margin: 56px 0 14px; }
h2.sub { font: 600 17px/1.4 var(--mono); letter-spacing: 0; text-transform: none; margin: 44px 0 6px; padding-top: 14px; border-top: 2px solid var(--ink); }
h3 { font: 600 16px/1.35 var(--mono); margin: 0; }
.lede { font-size: 16px; color: var(--soft); max-width: 62ch; margin: 0 0 10px; }
.lede strong { color: var(--ink); font-weight: 600; }
.muted { color: var(--soft); }
.small { font-size: 13px; }
.back { font-size: 13px; margin: 28px 0 0; }

/* Hero: grid paper behind the sieve */
.hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: end; padding-bottom: 40px; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.mesh { position: relative; aspect-ratio: 1; max-width: 420px; justify-self: end; width: 100%;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px; border: 1px solid var(--line); }
.mesh canvas { position: absolute; inset: 0; width: 100%; height: 100%; image-rendering: pixelated; }
@media (max-width: 760px) { .hero { grid-template-columns: 1fr; } .mesh { justify-self: start; max-width: 320px; } }

/* Ticker rule between hero and band */
.ticker { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 12px; font-weight: 500;
  white-space: nowrap; overflow: hidden; padding: 10px 0; }
.ticker span { display: inline-block; padding: 0 28px; }
.ticker span::before { content: "■"; color: var(--blue); margin-right: 28px; font-size: 9px; vertical-align: 2px; }

/* The blue band */
.band { background: var(--deep); color: var(--on-blue); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .band { background: #0E3E6B; } }
:root[data-theme="dark"] .band { background: #0E3E6B; }
.demo { display: block; width: 100%; aspect-ratio: 16 / 9; background: #161A15; border: 2px solid var(--ink); }
.band-in { max-width: var(--wrap); margin: 0 auto; padding: 64px var(--gutter); display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.band .idx { color: var(--sky); }
.band .stat p { margin: 10px 0 0; font-size: 13px; color: #CFE9FF; max-width: 30ch; }
@media (max-width: 760px) { .band-in { grid-template-columns: 1fr; } }

/* Dot-matrix numbers: 5 by 7 cells per digit */
.dm { display: inline-flex; gap: var(--dg, 6px); vertical-align: middle; }
.dm .d { display: grid; grid-template-columns: repeat(5, var(--c, 7px)); gap: var(--g, 2px); }
.dm .d i { width: var(--c, 7px); height: var(--c, 7px); background: currentColor; opacity: .14; }
.dm .d i.on { opacity: 1; }
.dm.big { --c: 9px; --g: 3px; --dg: 9px; }
.dm.small { --c: 4px; --g: 1px; --dg: 4px; }

/* Rounds */
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); border: 1px solid var(--line); }
.cell { padding: 22px 22px 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: -1px -1px 0 0; background: var(--card); }
.cell .tag { font-size: 12px; color: var(--soft); margin: 0 0 18px; }
.cell .kind { font-size: 12px; color: var(--deep); font-weight: 600; margin: 16px 0 4px; }
.cell h3 { font: 900 22px/1.05 var(--head); letter-spacing: -.03em; margin: 0 0 10px; }
.cell p { font-size: 13px; color: var(--soft); margin: 0 0 16px; }

/* Proposal list */
.list { list-style: none; padding: 0; margin: 14px 0; border-top: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 1fr 300px; gap: 10px 32px; padding: 18px 0; border-bottom: 1px solid var(--line); align-items: center; }
.row .meta { font-size: 13px; color: var(--soft); margin-top: 4px; }
@media (max-width: 700px) { .row { grid-template-columns: 1fr; } }
.status-pass { color: var(--deep); font-weight: 600; }
.status-fail { color: var(--fail); font-weight: 600; }

/* The pixel score strip: eleven columns, 0 to 10. Each model fills its score's column one cell higher;
   the threshold columns sit on a tinted ground, and the median column is outlined. */
.strip { display: grid; grid-template-columns: repeat(11, 1fr); gap: 4px; align-items: end; max-width: 300px; width: 100%; }
.strip .col { display: grid; gap: 3px; position: relative; }
.strip .col i { aspect-ratio: 1; background: var(--ink); opacity: .1; }
.strip .col.gate i { background: var(--blue); opacity: .22; }
.strip .col i.on { opacity: 1; background: var(--ink); }
.strip .col.gate i.on { background: var(--deep); }
.strip .col.med { outline: 2px solid var(--ink); outline-offset: 1px; }
.strip .col.med.pass { outline-color: var(--deep); }
.strip .col.med.fail { outline-color: var(--fail); }
.strip .axis { grid-column: 1 / -1; display: flex; justify-content: space-between; font-size: 11px; color: var(--soft); margin-top: 4px; }
.strip.empty .col i { opacity: .07; }

/* Proposal page */
.verdict { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; padding: 22px; border: 1px solid var(--line); background: var(--card); margin: 18px 0; }
.verdict .num { color: var(--ink); }
.verdict.pass .num { color: var(--deep); } .verdict.fail .num { color: var(--fail); }
.verdict .strip { min-width: 240px; max-width: 360px; }
.verdict .label { font-size: 12px; color: var(--soft); margin: 0 0 8px; }
.proposal-body { white-space: pre-wrap; max-width: 76ch; margin: 18px 0 10px; padding: 18px 20px; background: var(--card); border: 1px solid var(--line); font-size: 14px; }
.review { padding: 20px 0; border-bottom: 1px solid var(--line); }
.review .head { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: center; }
.review .head .dm { color: var(--ink); }
.proof { color: var(--deep); font-weight: 600; font-size: 13px; display: flex; gap: 8px; align-items: center; }
.proof::before { content: ""; width: 9px; height: 9px; background: currentColor; flex: none; }
.proof.bad { color: var(--fail); }
details { margin-top: 8px; font-size: 13px; color: var(--soft); }
summary { cursor: pointer; }
details code, .hash { font-size: 12px; word-break: break-all; }
.flag { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border: 1px solid var(--fail); color: var(--fail); margin-right: 6px; }

/* Honeypot */
.honey { display: grid; grid-template-columns: auto 1fr; gap: 28px; align-items: center; border: 1px solid var(--line); padding: 26px; margin: 22px 0; }
.honey .dm { color: var(--deep); }
@media (max-width: 640px) { .honey { grid-template-columns: 1fr; } }

/* Forms */
form label { display: block; font-weight: 600; font-size: 13px; margin: 16px 0 6px; }
input, textarea { width: 100%; font: 400 14px var(--mono); color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 0; padding: 11px 12px; }
textarea { min-height: 220px; line-height: 1.6; }
input:focus, textarea:focus { border-color: var(--blue); outline: none; }

/* Tables (red-team) */
table { border-collapse: collapse; width: 100%; font-size: 13px; margin: 14px 0; display: block; overflow-x: auto; }
th, td { text-align: left; padding: 8px 14px 8px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; font-size: 12px; color: var(--soft); }

/* Steps on the about page are a real sequence */
.steps { list-style: none; counter-reset: s; padding: 0; margin: 20px 0; border-top: 1px solid var(--line); max-width: 80ch; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 64px 1fr; padding: 16px 0; border-bottom: 1px solid var(--line); }
.steps li::before { content: counter(s, decimal-leading-zero); font: 500 22px/1 var(--pixel); color: var(--deep); }

.foot { border-top: 1px solid var(--line); }
.foot-in { max-width: var(--wrap); margin: 0 auto; padding: 20px var(--gutter) 40px; font-size: 12px; color: var(--soft); display: flex; gap: 20px; flex-wrap: wrap; justify-content: space-between; }

@media (prefers-reduced-motion: reduce) { .mesh canvas { display: none; } }