/* Project showcases — typography, palette and section rhythm shared with HydroCore. */
:root {
  color-scheme: light;
  --bg: #fff; --bg-subtle: #f2f5f8; --surface: #fff; --surface2: #f2f5f8;
  --text: #142333; --text-muted: #46596b; --text-faint: #5b6d7d; --muted: #46596b;
  --border: #d9e1e8; --accent: #175bcc; --accent-dim: #edf3ff;
  --green: #146b52; --green-dim: #e8f5ef; --green-border: #b1d7c8;
  --amber: #8b570b; --amber-dim: #fff4dd; --amber-border: #e3c793;
  --hud-cyan-border: #bccfeb; --hud-purple: #6341a5; --hud-red: #b6293b;
  --hud-orange: #8b570b; --hud-text: var(--text); --hud-text-dim: var(--text-muted);
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --display: 'Space Grotesk', system-ui, sans-serif;
  --body: 'Inter', system-ui, sans-serif; --r-md: 4px;
  --header-offset: 115px;
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 1rem/1.7 var(--body); -webkit-font-smoothing: antialiased; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-offset); }
html:has(.has-full-index) { --header-offset: 155px; }
h1,h2,h3,h4,p,figure { margin: 0; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-underline-offset: .25em; }
img { max-width: 100%; height: auto; }
svg { width: 20px; height: 20px; flex-shrink: 0; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
::selection { background: #c9ddff; color: var(--text); }
[hidden] { display: none !important; }
.wrap { width: min(1320px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: absolute; top: -100px; left: 20px; z-index: 100; padding: 10px 20px; background: var(--text); color: #fff; }
.skip-link:focus { top: 12px; }
.topbar { position: sticky; top: 0; z-index: 60; background: #fffffff5; border-bottom: 1px solid var(--border); }
.topbar-in { min-height: 86px; display: flex; align-items: center; gap: 26px; position: relative; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; flex-shrink: 0; }
.mark { width: 42px; height: 42px; border-radius: 50%; background: #dceaff; color: var(--accent); display: grid; place-items: center; }
.brand-txt b { display: block; font: 700 1.1rem/1.3 var(--display); letter-spacing: -.04em; }
.brand-txt b span { color: var(--accent); }
.brand-txt small { display: block; color: var(--text-faint); font-size: .75rem; }
.project-nav { display: flex; gap: 22px; margin-left: auto; }
.project-nav a { color: var(--text-muted); font-size: .875rem; text-decoration: none; padding-block: 12px; }
.project-nav a:hover, .project-nav a[aria-current] { color: var(--accent); }
.project-nav > a { white-space: nowrap; }
.has-full-index .topbar-in { flex-wrap: wrap; gap: 0 20px; padding-top: 14px; }
.has-full-index .project-home { margin-left: auto; }
.has-full-index .project-nav { order: 3; flex: 1 0 100%; flex-wrap: wrap; align-items: center; margin: 14px 0 0; padding-block: 4px; border-top: 1px solid var(--border); }
.nav-index { margin-left: auto; }
.nav-index summary { cursor: pointer; padding: 12px 0; font-size: .875rem; color: var(--accent); }
.nav-index .index-list { position: absolute; top: 100%; left: 0; right: 0; display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px 28px; list-style: none; margin: 0; padding: 24px; background: #fff; border: 1px solid var(--border); box-shadow: 0 15px 25px #14233312; max-height: calc(100dvh - var(--header-offset)); overflow-y: auto; }
.nav-index:not([open]) .index-list { display: none; }
.nav-index li { min-width: 0; }
.nav-index a { display: block; padding: 7px 0; line-height: 1.5; }
.nav-index .index-group > a { font-weight: 600; }
.nav-index .index-group > ul { list-style: none; margin: 0; padding: 0; }
.nav-index .toc-sub a { padding-left: 14px; font-size: .8125rem; }
.project-home { display: inline-flex; align-items: center; gap: 7px; padding: 7px 14px; border: 1px solid #b9cce9; border-radius: 999px; color: var(--accent); font: 600 .875rem/1.4 var(--body); white-space: nowrap; text-decoration: none; }
.project-home:hover { background: var(--accent-dim); }
.menu-btn { display: none; border: 1px solid var(--border); border-radius: 4px; padding: 8px 12px; background: #fff; color: var(--text); }
.eyebrow { display: block; font: 500 .75rem/1.6 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.hero { padding: 74px 0 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.65fr) minmax(260px,.75fr); gap: 8%; align-items: stretch; }
.hero h1 { font: 600 clamp(3.5rem,7.7vw,7.2rem)/.98 var(--display); letter-spacing: -.07em; margin: 25px 0 22px; }
.hero h1 span { color: var(--accent); }
.hero-subtitle { font: 500 clamp(1.4rem,2.7vw,2.4rem)/1.2 var(--display); letter-spacing: -.035em; margin-bottom: 24px; max-width: 680px; }
.lede { max-width: 680px; color: var(--text-muted); font-size: 1.0625rem; }
.hero-result { background: #144fb1; color: #fff; padding: clamp(24px,3vw,42px); display: flex; flex-direction: column; justify-content: space-between; gap: 30px; }
.hero-result .eyebrow { color: #e2edff; }
.result-value { font: 500 clamp(4rem,7vw,7rem)/1 var(--display); letter-spacing: -.07em; }
.result-value small { font-size: .35em; letter-spacing: -.035em; }
.result-caption { font-size: 1.125rem; margin-top: 12px; }
.result-meta { padding-top: 24px; border-top: 1px solid #ffffff50; font-size: .875rem; }
.result-meta b { display: block; font-weight: 500; font-size: 1rem; margin-bottom: 6px; }
.hero-result.is-draft .result-value { font-size: clamp(2.25rem,4vw,3.5rem); letter-spacing: -.04em; }
.hero-aset h1 { font-size: clamp(2.8rem,5.5vw,5.3rem); letter-spacing: -.06em; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.btn { display: inline-flex; justify-content: center; align-items: center; gap: 10px; padding: 12px 18px; border: 1px solid #bccbd7; border-radius: 4px; background: #fff; color: var(--text); font-size: .875rem; text-decoration: none; }
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--text); border-color: var(--text); color: #fff; }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); }
.chips { display: flex; flex-wrap: wrap; gap: 8px 24px; padding: 23px 0; margin-top: 32px; border-block: 1px solid var(--border); color: var(--text-muted); font-size: .875rem; }
.chips b { color: var(--text); font-weight: 600; }
.project-flow { background: var(--bg-subtle); border: 1px solid var(--border); margin-top: 40px; }
.flow-heading { display: flex; gap: 16px; justify-content: space-between; align-items: center; flex-wrap: wrap; padding: 18px 24px; border-bottom: 1px solid var(--border); font: .75rem/1.6 var(--mono); }
.flow-heading span { color: var(--text-faint); }
.flow-stages { list-style: none; margin: 0; padding: 28px 24px; display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 26px; }
.flow-stages li { position: relative; min-width: 0; }
.flow-stages li + li::before { content: '→'; position: absolute; left: -22px; top: 20px; color: var(--accent); }
.flow-stages .flow-number { display: block; font: .75rem var(--mono); color: var(--accent); margin-bottom: 12px; }
.flow-stages b { display: block; font: 500 1.2rem/1.3 var(--display); }
.flow-stages small { display: block; color: var(--text-faint); font-size: .8125rem; margin-top: 8px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit,minmax(130px,1fr)); gap: 20px; padding: 34px 0; border-bottom: 1px solid var(--border); }
.stat { padding-left: 20px; border-left: 1px solid var(--border); min-width: 0; }
.stat:first-child { padding-left: 0; border: 0; }
.stat-value { font: 500 2rem/1.25 var(--display); letter-spacing: -.04em; }
.stat-value .unit { font: .8125rem var(--body); letter-spacing: 0; }
.stat-label { font-size: .75rem; color: var(--text-faint); margin-top: 9px; }
.project-section { padding: 72px 0; border-bottom: 1px solid var(--border); }
.section-layout { display: grid; grid-template-columns: 260px minmax(0,1fr); gap: 64px; }
.section-heading h2 { font: 500 clamp(1.65rem,2.7vw,2.4rem)/1.15 var(--display); letter-spacing: -.045em; margin-top: 18px; }
.section-body { min-width: 0; }
.section-body > :first-child { margin-top: 0; }
.section-body h3 { font: 500 1.35rem/1.3 var(--display); letter-spacing: -.025em; margin: 32px 0 14px; color: var(--text); }
.section-body p, .section-body li { color: var(--text-muted); line-height: 1.8; }
.section-body p { margin-bottom: 16px; }
.section-body ul,.section-body ol { padding-left: 22px; }
.section-body li { margin-bottom: 8px; }
.section-body a:not(.download-btn):not(.btn) { color: var(--accent); }
.section-body strong { color: var(--text); }
.section-anchor { scroll-margin-top: 115px; }
.technical-scroll { overflow-x: auto; margin: 20px 0; }
.technical-scroll:focus-visible { outline-offset: 2px; }
.cmp-table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.cmp-table th { font: 500 .75rem/1.6 var(--mono); text-align: left; color: var(--accent); padding: 12px 14px; background: var(--accent-dim); border-bottom: 1px solid var(--border); }
.cmp-table td { color: var(--text-muted); padding: 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.cmp-table td:first-child { font-weight: 500; color: var(--text); }
.td-hl { color: var(--accent) !important; }.td-g { color: var(--green) !important; }.td-w { color: var(--amber) !important; }
.param-grid,.proto-grid,.download-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; margin: 24px 0; }
.param-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
.param-item { padding: 18px 0; border-top: 1px solid var(--border); }
.param-name { font-size: .75rem; color: var(--text-faint); margin-bottom: 8px; }
.param-val { font: 500 1.15rem/1.4 var(--display); color: var(--accent); }
.proto-card,.download-card { border-top: 1px solid var(--border); padding: 24px 0; min-width: 0; }
.download-card { display: flex; flex-direction: column; gap: 12px; }
.download-name,.proto-name { font: 500 1.15rem/1.4 var(--display); color: var(--text); }
.download-icon { color: var(--accent); font-size: 1.3rem; }
.download-desc,.proto-use { font-size: .875rem; color: var(--text-muted); }
.download-note { font: .75rem/1.7 var(--mono); color: var(--text-faint); overflow-wrap: anywhere; }
.download-btn { display: inline-flex; align-items: center; gap: 8px; align-self: flex-start; margin-top: auto; padding: 10px 16px; border: 1px solid #bccbd7; border-radius: 4px; color: var(--accent); text-decoration: none; font-size: .875rem; }
.download-btn:hover { border-color: var(--accent); background: var(--accent-dim); }
.two-col { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; margin: 24px 0; }
.algo-box,.arch-box,.result-card { background: var(--bg-subtle); padding: 24px; margin: 24px 0; overflow-x: auto; }
.algo-box { border-left: 2px solid var(--accent); }
.algo-label,.arch-label,.result-label { font: 500 .75rem/1.6 var(--mono); color: var(--accent); letter-spacing: .05em; margin-bottom: 14px; text-transform: uppercase; }
.algo-box .note,.arch-note,.blk-sub { font-size: .75rem; color: var(--text-faint); }
.arch-row { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.arch-block { flex-shrink: 0; min-width: 78px; background: #fff; border: 1px solid var(--border); padding: 12px; text-align: center; border-radius: 3px; }
.arch-block.hl,.arch-block.hl2,.arch-block.hl3 { border-color: #b9cce9; background: var(--accent-dim); }
.blk-name { font-size: .8125rem; font-weight: 600; }
.arch-arrow { color: var(--accent); flex-shrink: 0; }
.callout { display: flex; gap: 14px; padding: 24px; background: var(--bg-subtle); margin: 24px 0; }
.callout i { margin-top: 4px; color: var(--accent); flex-shrink: 0; }
.callout p { margin: 0; font-size: .875rem; }
.code-block { background: #142333; color: #ebf3ff; padding: 24px; border-radius: 4px; margin: 24px 0; overflow: auto; }
.code-block pre { margin: 0; font: .8125rem/1.8 var(--mono); }
code { font-family: var(--mono); font-size: .875em; overflow-wrap: anywhere; }
span.c { color: #a0b4c7; }span.k { color: #c6b6ff; }span.v { color: #8ec6ff; }span.f { color: #92e3d9; }span.s { color: #e2daa5; }
.process-flow { display: flex; align-items: center; overflow: auto; gap: 8px; margin: 24px 0; padding-bottom: 8px; }
.pf-stage { padding: 16px; min-width: 118px; text-align: center; background: var(--bg-subtle); border: 1px solid var(--border); flex-shrink: 0; }
.pf-icon { color: var(--accent); }.pf-name { font-size: .875rem; }.pf-sub { font-size: .75rem; color: var(--text-faint); }.pf-arrow { color: var(--accent); flex-shrink: 0; }
.draft-visual { background: var(--bg-subtle); margin-top: 40px; }
.draft-visual img { display: block; width: 100%; max-height: 380px; object-fit: contain; }
.draft-visual figcaption { border-top: 1px solid var(--border); padding: 14px 24px; font: .75rem/1.7 var(--mono); color: var(--text-faint); }
.draft-steps { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px; }
.draft-step { padding-top: 18px; border-top: 1px solid var(--border); }
.draft-step h3 { margin-top: 0; }.draft-step p { font-size: .9375rem; }
.project-footer { padding: 32px 0; }
.project-footer .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; color: var(--text-faint); font-size: .8125rem; }
.project-footer a { color: var(--accent); }
mjx-container[display='true'] { overflow-x: auto; overflow-y: hidden; padding-block: 8px; max-width: 100%; }
@media (max-width: 1180px) {
  .topbar-in { gap: 18px; }.project-nav { gap: 16px; }
  .nav-index .index-list { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .section-layout { grid-template-columns: 220px minmax(0,1fr); gap: 36px; }
  .param-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 960px) {
  .wrap { width: calc(100% - 48px); }.topbar-in { min-height: 72px; }
  .menu-btn { display: block; margin-left: auto; }.project-home { margin-left: auto; }
  .js .project-nav { display: none; position: absolute; top: 100%; left: -24px; right: -24px; background: #fff; border-bottom: 1px solid var(--border); padding: 16px 24px; flex-direction: column; gap: 2px; box-shadow: 0 15px 25px #14233312; }
  .js .project-nav.is-open { display: flex; }
  .has-full-index .topbar-in { padding-block: 12px; gap: 10px; }
  .has-full-index .project-nav { align-items: stretch; margin: 0; padding: 16px 24px; }
  .js .has-full-index .project-nav { flex-wrap: nowrap; max-height: calc(100dvh - var(--header-offset)); overflow-y: auto; }
  .nav-index { margin-left: 0; }
  .nav-index .index-list { position: static; grid-template-columns: 1fr; padding: 12px 16px; gap: 2px; box-shadow: none; max-height: none; overflow: visible; }
  html:not(.js) .topbar { position: relative; }
  html:not(.js) .topbar-in { flex-wrap: wrap; padding-block: 16px; }
  html:not(.js) .project-nav { order: 3; width: 100%; flex-wrap: wrap; }
  .hero { padding-top: 48px; }.hero-grid { grid-template-columns: 1.3fr 1fr; gap: 32px; }
  .hero h1 { font-size: clamp(3rem,7.8vw,5rem); }.hero-aset h1 { font-size: clamp(2.5rem,5vw,4rem); }
  .section-layout { grid-template-columns: 1fr; gap: 32px; }.section-heading { max-width: 640px; }
  .stats { grid-template-columns: repeat(3,minmax(0,1fr)); }.stat:nth-child(4) { border: 0; padding-left: 0; }
}
@media (max-width: 640px) {
  .wrap { width: calc(100% - 36px); }
  .js .project-nav { left: -18px; right: -18px; }
  .topbar-in { gap: 10px; }.brand { gap: 8px; }.brand-txt b { font-size: 1rem; }.brand-txt small { font-size: .6875rem; }
  .mark { width: 34px; height: 34px; }.project-home { padding: 6px 10px; font-size: .8125rem; }.project-home svg { display: none; }.menu-btn { padding: 7px 9px; font-size: .8125rem; margin-left: 0; }
  .hero-grid { grid-template-columns: 1fr; }.hero h1 { font-size: clamp(3rem,12vw,4.5rem); }.hero-aset h1 { font-size: clamp(2.4rem,10vw,3.5rem); }
  .hero-subtitle { font-size: 1.7rem; }.hero-result { min-height: 300px; }.result-value { font-size: 5rem; }
  .cta { flex-direction: column; }.btn { justify-content: space-between; }
  .flow-stages { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px 26px; padding: 24px 20px; }.flow-stages li:nth-child(3)::before { display: none; }
  .flow-heading { padding: 16px 20px; }.stats { gap: 24px 12px; }.stat { padding-left: 12px; }.stat-value { font-size: 1.55rem; }.stat-value .unit { font-size: .6875rem; }
  .project-section { padding: 48px 0; }
  .download-grid,.proto-grid,.two-col,.draft-steps { grid-template-columns: 1fr; gap: 12px; }
  .algo-box,.arch-box,.result-card,.callout { padding: 20px 16px; }.code-block { padding: 20px 16px; }
  .technical-scroll .cmp-table { min-width: 500px; }.project-footer .wrap { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 380px) {
  .mark { display: none; }.brand-txt b { font-size: .875rem; max-width: 120px; }
  .brand-txt small { display: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }