/* Homepage system: neutral black/white, shared rhythm, one ASCII identity.
   Calibration pages retain their existing styles.css unchanged. */
:root {
  color-scheme: dark;
  --bg: #000;
  --surface: #000;
  --text: #f5f5f5;
  --muted: #b0b0b0;
  --dim: #929292;
  --line: #303030;
  --line-strong: #555;
  --radius: 18px;
  --control-radius: 8px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.7 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
a:hover { color: #fff; text-decoration: underline; text-underline-offset: 5px; }
button { font: inherit; cursor: pointer; }
button:disabled { cursor: default; }
p, h1, h2, h3, h4 { margin: 0; }
p { color: var(--muted); }
code, pre { font-family: var(--mono); }
::selection { background: #fff; color: #000; }
:focus-visible { outline: 2px solid #fff; outline-offset: 5px; }
[hidden] { display: none !important; }
.cold-scan-form, .cold-scan-result { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.cold-scan-form label { display: block; font: 12px/1.6 var(--mono); margin-bottom: 12px; }
.cold-scan-inputs { display: flex; gap: 12px; flex-wrap: wrap; }
.cold-scan-inputs input { flex: 1 1 300px; min-width: 0; border: 1px solid var(--line-strong); border-radius: var(--control-radius); padding: 14px; background: var(--surface); color: var(--text); font: 13px/1.6 var(--mono); }
.cold-scan-form p { margin-top: 16px; font-size: 12px; }
.cold-scan-limits { color: var(--dim); }
.cold-scan-examples { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 18px; font: 12px/1.6 var(--mono); }
.cold-scan-examples span { color: var(--muted); margin-right: 4px; }
.cold-scan-examples button { appearance: none; padding: 6px 12px; border: 1px solid var(--line-strong); border-radius: var(--control-radius); background: var(--surface); color: var(--text); font: inherit; cursor: pointer; }
.cold-scan-examples button:hover { border-color: var(--text); }
.cold-scan-examples button:focus-visible { outline: 2px solid var(--text); outline-offset: 3px; }
.cold-scan-examples button:disabled { opacity: .5; cursor: wait; }
.cold-scan-form .cold-scan-example-help { margin-top: 10px; color: var(--dim); }
.cold-scan-status { padding: 18px 0; min-height: 64px; font: 12px/1.7 var(--mono); }
.cold-scan-result h3 { font: 14px/1.6 var(--mono); overflow-wrap: anywhere; margin: 10px 0; }
.cold-verdict { font: 30px/1.3 var(--mono); color: var(--text); }
.cold-scan-meta { font: 11px/1.6 var(--mono); margin-top: 14px; }
.cold-scan-result h4 { font: 13px/1.6 var(--mono); margin: 28px 0 12px; }
.cold-scan-result p, .cold-scan-result li { font-size: 13px; overflow-wrap: anywhere; }
.cold-scan-checks { margin: 20px 0; font: 11px/1.7 var(--mono); }
.cold-scan-checks div { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.cold-scan-checks dd { margin: 0; }
.cold-finding { padding: 14px 0; border-bottom: 1px solid var(--line); }
.cold-finding summary { cursor: pointer; font: 12px/1.8 var(--mono); overflow-wrap: anywhere; }
.cold-finding p { margin-top: 12px; }
.cold-finding pre { overflow: auto; max-height: 240px; white-space: pre-wrap; overflow-wrap: anywhere; padding: 14px; border: 1px solid var(--line); margin-top: 12px; font-size: 11px; }
#cold-scan-download { margin-top: 18px; }
@media (max-width: 600px) { .cold-scan-form, .cold-scan-result { padding: 18px; } .cold-scan-inputs input { flex-basis: 100%; } .site-header nav { flex-wrap: wrap; gap: 8px 20px; } }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.wrap { width: min(1040px, calc(100% - 80px)); margin-inline: auto; }
.site-header { min-height: 88px; display: flex; justify-content: flex-end; align-items: center; }
.site-header nav, .site-footer nav { display: flex; gap: 32px; font: 12px/1.5 var(--mono); }
.site-header nav a, .site-footer nav a { min-height: 44px; display: inline-flex; align-items: center; gap: 7px; }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 10; padding: 12px 20px; color: #000; background: #fff; }
.skip-link:focus { top: 12px; }
.intro { padding-top: 12px; }
.hero-viewport { position: relative; height: 310px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; container-type: inline-size; background: #000; }
.hero-viewport .pkgx-ascii-hero { width: 100%; height: 100%; min-height: 0; max-height: none; aspect-ratio: auto; border: 0; border-radius: 0; box-shadow: none; background: #000; }
/* Neutralize the prototype's near-black RGB tint, without editing its renderer.
   The continuous field remains visible around and between the static letters. */
.pkgx-ascii-hero__field, .hero-still { filter: grayscale(1) contrast(1.08); }
.hero-viewport .pkgx-ascii-hero__shade { background: radial-gradient(ellipse, transparent 40%, #0008 100%); }
.hero-still { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-fallback { position: absolute; inset: 0; display: grid; place-items: center; font: clamp(28px,7vw,80px)/1 var(--mono); }
.hero-ready .hero-fallback { display: none; }
.motion-controls { display: flex; justify-content: flex-end; min-height: 44px; }
.motion-button { min-height: 44px; padding: 8px 0 8px 16px; color: var(--dim); background: none; border: 0; font: 10px/1.6 var(--mono); }
.motion-button:hover { color: #fff; }
.intro-heading { max-width: 760px; margin: 22px auto 0; text-align: center; }
.eyebrow { font: 10px/1.6 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--dim); }
h2 { font: 400 clamp(26px,3.4vw,36px)/1.25 var(--mono); letter-spacing: -1.4px; }
.intro-heading h2 { font-size: clamp(28px,4vw,42px); margin-top: 16px; }
.intro-description { margin-top: 20px; font-size: 15px; line-height: 1.8; }
.actions { display: flex; justify-content: center; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 24px; min-height: 46px; padding: 12px 18px; border-radius: var(--control-radius); border: 1px solid var(--line-strong); font: 11px/1.6 var(--mono); white-space: nowrap; }
.button:hover { text-decoration: none; border-color: #fff; }
.primary { color: #000; background: #fff; border-color: #fff; }
.primary:hover { color: #000; background: #ddd; }
.secondary { background: #000; color: #fff; }
.text-link { font: 11px/1.7 var(--mono); }
.text-link span { margin-left: 6px; }
.section { margin-top: 88px; }
.section-heading { display: flex; justify-content: space-between; gap: 40px; align-items: end; margin-bottom: 28px; }
.section-heading .eyebrow { margin-bottom: 16px; }
.section-heading > p { font-size: 13px; line-height: 1.8; }
.scan-card, .command-box { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.scan-header { display: flex; justify-content: space-between; align-items: center; gap: 16px; border-bottom: 1px solid var(--line); padding: 20px 28px; }
.scan-header h3 { font: 14px/1.6 var(--mono); }
.scan-header h3 span { color: var(--muted); }
.recorded { font: 10px/1.6 var(--mono); color: var(--dim); }
.scan-body { display: grid; grid-template-columns: .8fr 1.2fr; }
.scan-summary, .scan-evidence { padding: 28px; }
.scan-summary { border-right: 1px solid var(--line); }
.verdict { font: 40px/1.2 var(--mono); color: #fff; letter-spacing: -1px; margin-top: 12px; }
.verdict-description { font-size: 13px; margin-top: 16px; max-width: 280px; }
.scan-meta { margin: 24px 0; font: 11px/1.8 var(--mono); }
.scan-meta > div { display: flex; justify-content: space-between; gap: 16px; padding: 7px 0; border-bottom: 1px solid #202020; }
.scan-meta dt { color: var(--dim); }
.scan-meta dd { margin: 0; text-align: right; }
.finding-heading { display: flex; gap: 12px; align-items: center; }
.finding-heading h4 { font: 12px/1.6 var(--mono); }
.info-tag { border: 1px solid var(--line-strong); border-radius: 4px; padding: 2px 6px; font: 10px/1.6 var(--mono); }
.finding-description { margin-top: 12px; font-size: 13px; }
.source-block { margin-top: 20px; border: 1px solid var(--line); border-radius: var(--control-radius); overflow: hidden; }
.source-label { display: flex; justify-content: space-between; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line); color: var(--dim); font: 10px/1.6 var(--mono); }
pre { margin: 0; padding: 18px 14px; overflow-x: auto; font-size: 12px; line-height: 1.9; }
.code-comment { color: var(--dim); }
.code-keyword { color: #fff; }
.rationale { margin-top: 20px; font-size: 12px; line-height: 1.8; }
.checks { margin-top: 20px; font: 10px/1.7 var(--mono); }
.checks > div { display: flex; justify-content: space-between; gap: 16px; padding: 8px 0; border-top: 1px solid var(--line); }
.checks > div > span:last-child { color: var(--muted); text-align: right; }
.scan-foot { display: flex; justify-content: space-between; gap: 16px; padding: 14px 28px; border-top: 1px solid var(--line); color: var(--dim); font: 10px/1.6 var(--mono); }
.scan-context { display: grid; grid-template-columns: 18px 1fr; gap: 12px; margin-top: 20px; font-size: 12px; line-height: 1.8; }
.context-mark { color: var(--dim); font-family: var(--mono); }
.scan-context strong { color: #ddd; font-weight: 500; }
.scan-context details { grid-column: 2; color: var(--muted); }
summary { cursor: pointer; width: fit-content; padding: 4px 0; font: 11px/1.7 var(--mono); }
details p { margin-top: 12px; }
.artifact-hash { display: block; overflow-wrap: anywhere; font-size: 11px; margin-top: 5px; }
.scope-grid { border-top: 1px solid var(--line); }
.scope-row { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.scope-row h3 { font: 12px/1.8 var(--mono); }
.scope-row p { font-size: 13px; line-height: 1.8; }
.scope-links { display: flex; flex-wrap: wrap; gap: 16px 28px; margin-top: 20px; font: 10px/1.8 var(--mono); }
.command-heading { display: flex; justify-content: space-between; gap: 20px; padding: 14px 24px; border-bottom: 1px solid var(--line); color: var(--dim); font: 10px/1.8 var(--mono); }
.command-line { display: flex; align-items: center; gap: 16px; padding: 24px; }
.prompt { color: var(--dim); font: 16px var(--mono); }
.command-line code { font-size: 13px; line-height: 1.8; overflow-wrap: anywhere; user-select: all; }
.copy-button { display: flex; gap: 14px; align-items: center; margin-left: auto; padding: 9px 14px; min-height: 44px; color: #fff; background: #000; border: 1px solid var(--line-strong); border-radius: var(--control-radius); font: 11px var(--mono); }
.copy-button:hover { border-color: #fff; }
.start-notes { display: flex; justify-content: space-between; gap: 40px; align-items: center; margin-top: 24px; }
.start-notes p { max-width: 580px; font-size: 12px; line-height: 1.8; }
.integration-links { display: flex; gap: 24px; align-items: center; margin-top: 28px; font: 11px/1.8 var(--mono); }
.integration-links > span { color: var(--dim); }
.site-footer { margin-top: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 24px 0 36px; border-top: 1px solid var(--line); }
.site-footer > span { font: 10px var(--mono); color: var(--dim); }
.site-footer nav { font-size: 11px; gap: 24px; }
.copy-status { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 5; background: #fff; color: #000; border-radius: var(--control-radius); padding: 12px 20px; max-width: calc(100% - 32px); font: 12px/1.7 var(--mono); }
.copy-status:empty { display: none; }
@media (max-width: 800px) {
  .wrap { width: calc(100% - 48px); }
  .section-heading { display: block; }
  .section-heading > p, .section-heading > .text-link { margin-top: 18px; display: block; }
  .scan-summary, .scan-evidence { padding: 22px; }
  .command-line code { font-size: 12px; }
  .start-notes { gap: 24px; }
}
@media (max-width: 600px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { min-height: 72px; justify-content: center; }
  .site-header nav { width: 100%; justify-content: space-between; gap: 12px; font-size: 11px; }
  .intro { padding-top: 8px; }
  .hero-viewport { height: 220px; }
  /* Keep the original glyph grid above its minimum useful resolution, then
     fit its canvas to the viewport. This preserves every letter on 320px
     screens without rebuilding or modifying HeyClicky's source. */
  .hero-viewport .pkgx-ascii-hero { width: 560px; height: 340px; }
  .hero-viewport .pkgx-ascii-hero__field,
  .hero-viewport .hero-still,
  .hero-viewport .pkgx-ascii-hero__shade,
  .hero-viewport .hero-fallback { width: 100cqw; height: 218px; }
  .intro-heading { margin-top: 20px; }
  .intro-heading h2 { font-size: clamp(25px,6.8vw,34px); letter-spacing: -1.1px; }
  .intro-heading h2 span { display: block; }
  .intro-description { font-size: 13px; margin-top: 18px; }
  .desktop-break { display: none; }
  .actions { flex-wrap: wrap; gap: 10px; margin-top: 24px; }
  .button { font-size: 10px; padding: 12px 14px; gap: 14px; }
  .section { margin-top: 64px; }
  .section-heading { margin-bottom: 24px; }
  h2 { font-size: 27px; letter-spacing: -1px; }
  .section-heading > p { font-size: 12px; }
  .scan-header { padding: 18px 20px; align-items: start; flex-wrap: wrap; gap: 8px; }
  .scan-header h3 { font-size: 13px; }
  .recorded { font-size: 9px; }
  .scan-body { grid-template-columns: 1fr; }
  .scan-summary { border-right: 0; border-bottom: 1px solid var(--line); }
  .scan-summary, .scan-evidence { padding: 24px 20px; }
  .verdict-description { max-width: none; }
  .source-label { font-size: 9px; padding-inline: 10px; }
  pre { font-size: 11px; padding-inline: 10px; }
  .checks { font-size: 9px; }
  .scan-foot { flex-wrap: wrap; padding: 14px 20px; gap: 3px 20px; font-size: 9px; }
  .scan-context { grid-template-columns: 12px 1fr; gap: 8px; font-size: 11px; }
  .scope-row { grid-template-columns: 1fr; gap: 10px; padding: 22px 0; }
  .scope-row p { font-size: 12px; }
  .scope-links { gap: 14px 20px; }
  .command-heading { padding: 14px 18px; font-size: 9px; }
  .command-heading span:last-child { display: none; }
  .command-line { display: grid; grid-template-columns: 12px minmax(0, 1fr); align-items: start; padding: 20px 18px; gap: 16px 12px; }
  .command-line code { flex: 1; min-width: 0; font-size: 12px; }
  .copy-button { grid-column: 2; justify-self: start; margin-left: 0; }
  .start-notes { display: block; margin-top: 20px; }
  .start-notes .button { margin-top: 22px; }
  .integration-links { flex-wrap: wrap; gap: 14px 20px; font-size: 10px; }
  .integration-links > span { flex-basis: 100%; }
  .site-footer { margin-top: 56px; flex-wrap: wrap; gap: 12px; }
  .site-footer nav { font-size: 10px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }