/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:       #0E1117;
  --navy-mid:   #12171F;
  --navy-card:  #171D27;
  --navy-light: #1C2531;
  --gold:       #3D8BFF;
  --gold-light: #7DAEFF;
  --teal:       #3D8BFF;
  --text:       #E9EDF3;
  --text-muted: #8B95A3;
  --border:     rgba(255,255,255,0.09);
  --radius:     10px;
  --radius-lg:  18px;
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Sora', sans-serif;
  background: var(--navy);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
}
a { text-decoration: none; color: inherit; }

h1, h2 { font-family: 'Fraunces', serif; font-weight: 700; line-height: 1.15; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); }
h3 { font-size: 1.1rem; font-weight: 600; }

/* NAV */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2.5rem;
  background: rgba(14,17,23,0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { font-family: 'Fraunces', serif; font-size: 1.4rem; color: var(--gold); font-weight: 700; }
.nav-links { display: flex; gap: 1.5rem; list-style: none; align-items: center; }
.nav-links a { font-size: 0.87rem; font-weight: 500; color: var(--text-muted); transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a.nav-notes {
  display: inline-flex; align-items: center; position: relative;
  color: var(--text); font-family: 'Sora', sans-serif; font-size: 0.76rem;
  font-weight: 600; letter-spacing: 0.08em; line-height: 1.2; text-transform: uppercase;
  padding: 0.28rem 0.48rem 0.26rem; border: 1px solid rgba(125,174,255,0.5);
}
.nav-links a.nav-notes:hover, .nav-links a.nav-notes.active {
  color: #fff; border-color: var(--gold-light);
}
.nav-links a.nav-notes:focus-visible { outline: 1px solid var(--gold-light); outline-offset: 4px; }
.nav-links a.nav-cta {
  background: var(--gold); color: var(--navy);
  padding: 0.4rem 1rem; border-radius: 6px; font-weight: 600;
}
.nav-links a.nav-cta:hover { background: var(--gold-light); }
.nav-links a.nav-cta-outline {
  border: 1.5px solid var(--gold); color: var(--gold);
  padding: 0.35rem 1rem; border-radius: 6px; font-weight: 600;
}
.nav-links a.nav-cta-outline:hover { background: rgba(61,139,255,0.1); }
.nav-burger { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* BUTTONS */
.btn { display: inline-block; padding: 0.72rem 1.6rem; border-radius: 8px; font-weight: 600; font-size: 0.9rem; transition: all 0.2s; cursor: pointer; }
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-primary:hover { background: var(--gold-light); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid rgba(255,255,255,0.2); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-outline { background: transparent; color: var(--gold); border: 1px solid var(--gold); }
.btn-outline:hover { background: var(--gold); color: var(--navy); }

/* HERO */
.hero {
  min-height: 100vh;
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 2rem;
  padding: 8rem 2.5rem 5rem;
  max-width: 1200px; margin: 0 auto;
}
.hero-eyebrow { font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold); margin-bottom: 1rem; }
.hero-title { color: #fff; margin-bottom: 1.2rem; }
.hero-title em { font-style: italic; color: var(--gold-light); }
.hero-sub { font-size: 1.02rem; color: var(--text-muted); max-width: 480px; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* HERO PROOF CARD */
.hero-proof-card {
  background: rgba(23,29,39,.92); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 2rem; box-shadow: 0 20px 50px rgba(0,0,0,.16);
}
.hero-proof-kicker { font-family: 'JetBrains Mono', monospace; font-size: .72rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--gold); margin-bottom: .65rem; }
.hero-proof-card h2 { font-family: 'Fraunces', serif; font-size: clamp(1.5rem,2.4vw,2rem); color: #fff; margin-bottom: .75rem; }
.hero-proof-card h2 em { color: var(--gold-light); }
.hero-proof-intro { color: var(--text-muted); font-size: .86rem; line-height: 1.65; max-width: 32rem; }
.hero-proof-steps { list-style: none; margin: 1.4rem 0 0; }
.hero-proof-steps li { display: grid; grid-template-columns: 2.2rem 1fr; gap: .8rem; padding: .95rem 0; border-top: 1px solid var(--border); }
.hero-proof-number { font-family: 'JetBrains Mono', monospace; color: var(--gold); font-size: .72rem; font-weight: 600; padding-top: .16rem; }
.hero-proof-steps strong { display: block; color: #fff; font-size: .9rem; margin-bottom: .18rem; }
.hero-proof-steps p { color: var(--text-muted); font-size: .8rem; line-height: 1.55; }
.hero-proof-footer { margin-top: .35rem; padding-top: .8rem; border-top: 1px solid var(--border); color: var(--gold); font-family: 'JetBrains Mono', monospace; font-size: .68rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }

/* SECTIONS */
.section-eyebrow { font-family: 'JetBrains Mono', monospace; font-size: 0.76rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.18em; color: var(--gold); margin-bottom: 0.5rem; }
.section-header { margin-bottom: 2.5rem; }
.featured { max-width: 1200px; margin: 0 auto; padding: 5rem 2.5rem; }
.project-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 1.25rem; }
.project-card {
  background: var(--navy-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
}
.project-card:hover { border-color: rgba(61,139,255,0.4); transform: translateY(-3px); }
.featured-card { background: var(--navy-light); }
.project-tag {
  display: inline-block; white-space: nowrap; font-size: 0.7rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--text-muted); background: rgba(255,255,255,0.05);
  padding: 0.25rem 0.7rem; border-radius: 4px; margin-bottom: 0.9rem;
}
.project-card h3 { margin-bottom: 0.6rem; color: #fff; }
.project-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 1.1rem; }
.project-meta { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.project-meta span { font-size: 0.72rem; font-weight: 600; color: var(--text-muted); background: rgba(255,255,255,0.06); padding: 0.2rem 0.6rem; border-radius: 4px; }
.see-all { text-align: center; margin-top: 2.5rem; }

/* CTA */
.cta-strip { background: var(--navy-mid); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 4rem 2.5rem; text-align: center; }
.cta-strip h2 { color: #fff; margin-bottom: 1.5rem; }

/* FOOTER */
.footer { position: relative; overflow: hidden; display: flex; justify-content: space-between; align-items: center; padding: 1.5rem 2.5rem; border-top: 1px solid var(--border); font-size: 0.85rem; color: var(--text-muted); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a:hover { color: var(--gold); }

/* PAGE HERO */
.page-hero { padding: 8rem 2.5rem 3rem; max-width: 1200px; margin: 0 auto; }
.page-hero h1 { color: #fff; margin-bottom: 0.75rem; }
.page-hero p { font-size: 1.02rem; color: var(--text-muted); max-width: 600px; }

/* WORKING NOTES */
.notes-section { max-width: 960px; margin: 0 auto; padding: 0.75rem 2.5rem 4rem; }
.notes-progress { color: var(--text-muted); font-weight: 500; letter-spacing: 0.08em; }
.notes-practice {
  max-width: 360px; margin-left: auto; padding: 0.85rem 0 0.85rem 1rem;
  border-left: 1px solid rgba(125,174,255,0.35); color: var(--text-muted);
}
.notes-practice span {
  display: block; font-family: 'JetBrains Mono', monospace; font-size: 0.68rem;
  font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-light);
  margin-bottom: 0.35rem;
}
.notes-practice p { font-size: 0.82rem; line-height: 1.65; }
.notes-footnote {
  max-width: 640px; margin: 1.75rem 0 0; padding: 0.85rem 0 0;
  border-left: 0; border-top: 1px solid rgba(125,174,255,0.28);
}
.notes-index { margin-top: -0.75rem; }
.notes-index > .section-eyebrow { margin-bottom: 0.85rem; }
.notes-pinned-label {
  font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; font-weight: 600;
  display: flex; align-items: center; height: 0.85rem; color: var(--gold-light); margin-bottom: 0.55rem;
}
.notes-pin-icon { width: 0.85rem; height: 0.85rem; fill: none; stroke: currentColor; stroke-linecap: square; stroke-linejoin: miter; stroke-width: 1.15; }
.notes-pinned-visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.notes-post-card {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1.5rem;
  align-items: start; padding: 1.35rem 1.5rem; background: var(--navy-card);
  border: 1px solid var(--border); border-left-color: rgba(125,174,255,0.45); border-radius: var(--radius);
}
.notes-entry-link { transition: border-color 0.2s, background 0.2s; }
.notes-entry-link:hover { border-color: rgba(125,174,255,0.62); background: var(--navy-light); }
.notes-post-status {
  font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.08em; line-height: 1.5; text-transform: uppercase; color: var(--gold-light);
}
.notes-post-card h2 { font-family: 'Sora', sans-serif; font-size: 1.04rem; line-height: 1.4; color: #fff; margin-bottom: 0.4rem; }
.notes-post-card div > p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.65; }
.notes-entry-link-label { align-self: center; color: var(--gold); font-size: 0.82rem; font-weight: 600; white-space: nowrap; }
.notes-pinned .notes-post-card { padding: 1.9rem 2rem; border-left-width: 2px; }
.notes-pinned .notes-post-card h2 { font-family: 'Fraunces', serif; font-size: clamp(1.35rem, 2.4vw, 1.75rem); line-height: 1.22; }
.notes-pinned .notes-post-card div > p { font-size: 0.96rem; }
.notes-robotics { margin-top: 1.1rem; }
.notes-robotics .notes-post-status { color: #2f69ad; }
.notes-robotics .notes-post-card {
  background-color: #e9edf2;
  background-image: linear-gradient(rgba(77, 127, 189, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(77, 127, 189, .045) 1px, transparent 1px);
  background-size: 28px 28px;
  border-color: rgba(77, 127, 189, .28);
}
.notes-robotics .notes-post-card:hover { background-color: #e3e8ee; border-color: #2f69ad; }
.notes-robotics .notes-post-card h2 { color: #214b78; font-family: 'JetBrains Mono', monospace; font-weight: 600; letter-spacing: -.035em; }
.notes-robotics .notes-post-card div > p { color: #4d6884; }
.notes-robotics .notes-entry-link-label { color: #2f69ad; }
.notes-chronological { margin-top: 1.5rem; padding-top: 1.1rem; border-top: 1px solid var(--border); }
.notes-chronological h2 {
  font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 0.7rem;
}
.notes-chronological-list { list-style: none; }
.notes-empty { color: var(--text-muted); font-size: 0.84rem; }
.notes-principles { max-width: 620px; margin-top: 0.9rem; }
.notes-principles summary {
  display: inline-flex; align-items: center; gap: 0.45rem; cursor: pointer;
  font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold-light);
  padding-bottom: 0.3rem; border-bottom: 1px solid rgba(125,174,255,0.45);
}
.notes-principles summary::-webkit-details-marker { display: none; }
.notes-principles summary::after { content: '+'; font-size: 0.9rem; line-height: 1; }
.notes-principles[open] summary::after { content: '−'; }
.notes-principles summary:hover { color: #fff; border-bottom-color: var(--gold-light); }
.notes-principles summary:focus-visible { outline: 1px solid var(--gold-light); outline-offset: 4px; }
.notes-principles-panel { margin-top: 1rem; padding-left: 1rem; border-left: 1px solid rgba(125,174,255,0.38); }

/* WORKING NOTES ARTICLES */
.article-hero { max-width: 860px; }
.article-status {
  font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--gold); margin-bottom: 1rem;
}
.article-hero h1 { max-width: 800px; }
.article-subtitle { max-width: 700px !important; font-family: 'Fraunces', serif; font-size: clamp(1.15rem, 2.2vw, 1.45rem) !important; line-height: 1.45; color: var(--gold-light) !important; }
.article-layout { max-width: 760px; margin: 0 auto; padding: 1.5rem 2.5rem 5rem; }
.article-prose {
  padding: clamp(1.5rem, 4vw, 2.75rem); background: rgba(23,29,39,0.72);
  border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-lg);
  box-shadow: 0 16px 42px rgba(0,0,0,0.16);
}
.article-prose section + section { margin-top: 2.75rem; padding-top: 2.75rem; border-top: 1px solid var(--border); }
.article-prose p { font-size: 1rem; font-weight: 300; line-height: 1.9; color: var(--text); margin-bottom: 1.45rem; }
.article-prose p:last-child { margin-bottom: 0; }
.article-back { display: inline-block; margin-top: 3rem; font-size: 0.84rem; font-weight: 600; color: var(--gold); }
.article-back:hover { color: var(--gold-light); }
.notes-principles-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; list-style: none; }
.notes-principles-list li { padding-top: 1rem; border-top: 1px solid rgba(125,174,255,0.24); }
.notes-principle-num {
  display: block; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem;
  font-weight: 600; letter-spacing: 0.12em; color: var(--gold); margin-bottom: 0.75rem;
}
.notes-principles-list h2 { font-family: 'Sora', sans-serif; font-size: 0.94rem; line-height: 1.4; color: #fff; margin-bottom: 0.45rem; }
.notes-principles-list p { font-size: 0.82rem; line-height: 1.65; color: var(--text-muted); }

/* ROBOTICS TEST BENCH */
.robotics-hero, .experiment-hero { max-width: 960px; margin: 0 auto; padding: 8rem 2.5rem 3.5rem; }
.robotics-hero { background-image: linear-gradient(rgba(125,174,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(125,174,255,.07) 1px, transparent 1px); background-size: 32px 32px; }
.robotics-hero h1, .experiment-hero h1 { color: #fff; margin-bottom: .85rem; }
.robotics-hero > p:not(.section-eyebrow), .experiment-hero > p:not(.section-eyebrow) { max-width: 680px; color: var(--text-muted); font-size: 1.05rem; }
.bench-loop { display: flex; flex-wrap: wrap; list-style: none; margin-top: 2.25rem; border-top: 1px solid rgba(125,174,255,.35); border-bottom: 1px solid rgba(125,174,255,.35); }
.bench-loop li { flex: 1 1 135px; padding: .75rem .8rem; color: var(--gold-light); font-family: 'JetBrains Mono', monospace; font-size: .68rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.bench-loop li:not(:last-child)::after { content: '→'; float: right; color: var(--text-muted); }
.robotics-index { max-width: 960px; margin: 0 auto; padding: 1rem 2.5rem 5rem; }
.experiment-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.experiment-card { display: flex; flex-direction: column; padding: 1.6rem; background: var(--navy-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.experiment-card:hover { border-color: rgba(125,174,255,.55); }
.experiment-card-meta { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 1.2rem; color: var(--gold); font-family: 'JetBrains Mono', monospace; font-size: .7rem; font-weight: 600; letter-spacing: .1em; }
.status-resolved { color: #9ed7b0; }
.experiment-card h3 { color: #fff; font-family: 'Fraunces', serif; font-size: 1.5rem; line-height: 1.2; margin-bottom: .8rem; }
.experiment-card p { color: var(--text-muted); font-size: .88rem; line-height: 1.7; margin-bottom: .85rem; }
.experiment-card .experiment-question { color: var(--text); }
.experiment-card a, .robotics-source a, .source-section a { color: var(--gold); font-size: .84rem; font-weight: 600; margin-top: auto; }
.experiment-card a:hover, .robotics-source a:hover, .source-section a:hover { color: var(--gold-light); }
.robotics-source { display: grid; gap: .2rem; margin-top: 2.5rem; padding: 1rem 0 0 1rem; border-left: 1px solid rgba(125,174,255,.45); }
.robotics-source span { color: var(--text-muted); font-size: .8rem; }
.experiment-back { display: inline-block; margin-bottom: 1.75rem; color: var(--gold); font-size: .84rem; font-weight: 600; }
.experiment-back:hover { color: var(--gold-light); }
.experiment-layout { max-width: 760px; margin: 0 auto; padding: .5rem 2.5rem 5rem; }
.experiment-layout > section { padding: 2rem 0; border-top: 1px solid var(--border); }
.experiment-layout h2 { color: #fff; font-size: clamp(1.45rem, 3vw, 2rem); margin-bottom: .75rem; }
.experiment-layout p { color: var(--text-muted); font-size: .98rem; line-height: 1.85; }
.step-label { color: var(--gold) !important; font-family: 'JetBrains Mono', monospace; font-size: .7rem !important; font-weight: 600; letter-spacing: .11em; line-height: 1.5 !important; text-transform: uppercase; margin-bottom: .55rem; }
.experiment-layout code { color: var(--gold-light); font-family: 'JetBrains Mono', monospace; font-size: .86em; }
.source-section ul { list-style: none; display: grid; gap: .45rem; }
.evidence-callout { margin-top: 1.5rem; padding: 1.15rem 1.25rem; background: rgba(61,139,255,.07); border-left: 2px solid var(--gold); }
.model-control-figure { margin: 1.5rem 0 0; padding: 1rem; border: 1px solid rgba(125,174,255,.35); border-radius: var(--radius); background: rgba(16,23,34,.04); overflow: hidden; }
.model-control-figure-head h3 { color: var(--text); font-family: 'JetBrains Mono', monospace; font-size: 1.05rem; line-height: 1.35; margin: .15rem 0 .5rem; }
.model-control-figure-head p:not(.step-label) { font-size: .82rem; line-height: 1.65; }
.model-control-figure svg { display: block; width: 100%; height: auto; margin-top: .75rem; }
.model-control-figure figcaption { margin-top: .65rem; color: var(--text-muted); font-size: .72rem; line-height: 1.55; }
.feedback-schematic-svg { overflow: visible; }
.feedback-schematic .feedback-lane { fill: rgba(255,255,255,.35); stroke: var(--bench-line); stroke-width: 1; }
.feedback-schematic .feedback-lane-pd { fill: rgba(47,105,173,.06); }
.feedback-schematic .feedback-lane-label { fill: var(--bench-ink); font-family: 'JetBrains Mono', monospace; font-size: 15px; font-weight: 600; }
.feedback-schematic .feedback-note, .feedback-schematic .feedback-velocity-label { fill: var(--bench-muted); font-family: 'JetBrains Mono', monospace; font-size: 11px; }
.feedback-schematic .feedback-box, .feedback-schematic .feedback-plant { fill: rgba(255,255,255,.72); stroke: var(--bench-blue); stroke-width: 1.5; }
.feedback-schematic .feedback-law { fill: rgba(47,105,173,.12); }
.feedback-schematic .feedback-plant { fill: rgba(33,75,120,.1); }
.feedback-schematic .feedback-plant-pd { fill: rgba(47,105,173,.16); }
.feedback-schematic .feedback-box-title { fill: var(--bench-ink); font-family: 'JetBrains Mono', monospace; font-size: 13px; font-weight: 600; }
.feedback-schematic .feedback-box-detail { fill: var(--bench-muted); font-family: 'JetBrains Mono', monospace; font-size: 10px; }
.feedback-schematic .feedback-arrow, .feedback-schematic .feedback-velocity { fill: none; stroke: var(--bench-blue); stroke-width: 1.8; }
.feedback-schematic .feedback-velocity { stroke-dasharray: 4 4; stroke: rgba(47,105,173,.72); }
.model-control-controls { display: grid; grid-template-columns: auto 1fr; column-gap: 1rem; align-items: center; margin-top: 1rem; padding-top: .85rem; border-top: 1px solid rgba(125,174,255,.25); }
.model-control-controls label { color: var(--text-muted); font-family: 'JetBrains Mono', monospace; font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; }
.model-control-controls output { color: var(--text); }
.model-control-controls input { grid-column: 1 / -1; width: 100%; accent-color: var(--gold); cursor: pointer; }
.model-control-controls p { grid-column: 1 / -1; color: var(--text-muted); font-size: .72rem; line-height: 1.5; }
.coupling-visual { margin-top: 1.5rem; border: 1px solid rgba(125,174,255,.35); border-radius: var(--radius); overflow: hidden; background: #101722; }
.visual-toolbar { display: flex; flex-wrap: wrap; gap: .45rem; padding: .7rem; border-bottom: 1px solid var(--border); }
.visual-toggle { border: 1px solid transparent; padding: .42rem .6rem; background: transparent; color: var(--text-muted); cursor: pointer; font-family: 'JetBrains Mono', monospace; font-size: .68rem; }
.visual-toggle:hover, .visual-toggle:focus-visible, .visual-toggle.is-active { border-color: rgba(125,174,255,.65); color: #fff; outline: none; }
.arm-stage svg { display: block; width: 100%; height: auto; }
.arm-stage text { fill: var(--text-muted); font-family: 'JetBrains Mono', monospace; font-size: 12px; }
.arm-link { stroke: var(--gold-light); stroke-linecap: round; stroke-width: 16; transition: all .45s ease; }
.arm-joint { fill: var(--navy); stroke: #fff; stroke-width: 3; transition: all .45s ease; }
.arm-tip { fill: var(--gold); transition: all .45s ease; }
.arm-trace { fill: none; stroke: rgba(125,174,255,.45); stroke-dasharray: 5 7; stroke-width: 2; }
.visual-caption { display: grid; gap: .2rem; padding: .8rem 1rem; background: rgba(0,0,0,.18); font-size: .8rem !important; line-height: 1.55 !important; }
.visual-caption strong { color: #fff; font-family: 'JetBrains Mono', monospace; font-size: .7rem; letter-spacing: .05em; text-transform: uppercase; }
.coupling-visual[data-state="hold"] .arm-link-two { transform: rotate(-12deg); transform-origin: 300px 130px; }
.coupling-visual[data-state="hold"] .arm-trace { stroke-dasharray: none; stroke: rgba(125,174,255,.7); }
.coupling-visual[data-state="gravity"] .arm-link { stroke: #9ed7b0; }
.coupling-visual[data-state="gravity"] .arm-tip { fill: #9ed7b0; }
.trajectory-explorer { margin-top: 1.5rem; border: 1px solid rgba(125,174,255,.35); border-radius: var(--radius); overflow: hidden; background: #101722; }
.explorer-stage svg { display: block; width: 100%; height: auto; }
.explorer-stage text { fill: var(--text-muted); font-family: 'JetBrains Mono', monospace; font-size: 12px; }
.timeline-controls { display: grid; grid-template-columns: auto 1fr; column-gap: 1rem; align-items: center; padding: 1rem; border-top: 1px solid var(--border); }
.timeline-controls label { color: var(--text-muted); font-family: 'JetBrains Mono', monospace; font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; }
.timeline-controls output { color: #fff; }
.timeline-controls input { grid-column: 1 / -1; width: 100%; accent-color: var(--gold); cursor: pointer; }
.timeline-controls p { grid-column: 1 / -1; color: var(--text-muted); font-size: .72rem; line-height: 1.5; }
.play-toggle { padding: .42rem .7rem; border: 1px solid rgba(125,174,255,.65); background: transparent; color: #fff; cursor: pointer; font-family: 'JetBrains Mono', monospace; font-size: .68rem; }
.play-toggle:hover, .play-toggle:focus-visible { border-color: #fff; outline: none; }
.state-readout { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--border); }
.state-readout div { padding: .75rem 1rem; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.state-readout dt { color: var(--gold-light); font-family: 'JetBrains Mono', monospace; font-size: .68rem; font-weight: 600; letter-spacing: .1em; }
.state-readout dd { color: #fff; font-family: 'JetBrains Mono', monospace; font-size: .72rem; margin: .18rem 0 0; }
.data-provenance { padding: .85rem 1rem; color: var(--text-muted); font-size: .74rem !important; line-height: 1.6 !important; }
.data-provenance a { color: var(--gold); }
.explorer-error { padding: 1rem; color: var(--text-muted); }
@media (prefers-reduced-motion: reduce) { .arm-link, .arm-joint, .arm-tip { transition: none; } }

/* ABOUT */
.about-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 4rem; max-width: 1200px; margin: 0 auto; padding: 0 2.5rem 5rem; align-items: start; }
.about-avatar { background: var(--navy-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2.5rem; text-align: center; position: sticky; top: 100px; }
.avatar-initials {
  width: 88px; height: 88px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--teal));
  display: flex; align-items: center; justify-content: center;
  font-family: 'Fraunces', serif; font-size: 1.9rem; font-weight: 700;
  color: var(--navy); margin: 0 auto 1.25rem;
}
.about-avatar h3 { color: #fff; margin-bottom: 0.25rem; }
.about-avatar .title { font-size: 0.88rem; color: var(--teal); margin-bottom: 1.25rem; }
.about-contact-info { text-align: left; margin-top: 1.5rem; border-top: 1px solid var(--border); padding-top: 1.25rem; }
.contact-row { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.contact-row a { color: var(--gold); }
.about-body p { color: var(--text-muted); margin-bottom: 1.2rem; }
.about-body .subsection-title { font-size: 0.76rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.15em; color: var(--gold); font-family: 'Sora', sans-serif; margin: 2rem 0 1rem; }
.timeline { position: relative; padding-left: 1.5rem; }
.timeline::before { content: ''; position: absolute; left: 0; top: 6px; bottom: 6px; width: 1px; background: var(--border); }
.timeline-item { position: relative; margin-bottom: 2rem; }
.timeline-item::before { content: ''; position: absolute; left: -1.54rem; top: 6px; width: 8px; height: 8px; border-radius: 50%; background: var(--gold); }
.timeline-item h4 { font-weight: 600; color: #fff; font-size: 1rem; }
.timeline-item .org { color: var(--teal); font-size: 0.88rem; font-weight: 600; }
.timeline-item .dates { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.4rem; }
.timeline-item p { font-size: 0.9rem; color: var(--text-muted); }
.timeline-bullets { list-style: none; margin: .7rem 0 0; }
.timeline-bullets li { position: relative; padding: .18rem 0 .18rem 1.15rem; color: var(--text-muted); font-size: .88rem; line-height: 1.65; }
.timeline-bullets li::before { content: '▸'; position: absolute; left: 0; top: .24rem; color: var(--gold); font-size: .7rem; }

/* PROJECTS */
.projects-section { max-width: 1200px; margin: 0 auto; padding: 0 2.5rem 5rem; }
.projects-full-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.project-card-full {
  background: var(--navy-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2rem;
  transition: border-color 0.2s, transform 0.2s;
}
.project-card-full:hover { border-color: rgba(61,139,255,0.35); transform: translateY(-2px); }
.project-card-full h3 { color: #fff; margin: 0.75rem 0 0.6rem; }
.project-card-full p { font-size: 0.92rem; color: var(--text-muted); margin-bottom: 1.2rem; }
.project-link { display: inline-block; margin-top: 1.25rem; color: var(--gold); font-size: .85rem; font-weight: 600; }
.project-link:hover { color: var(--gold-light); }
.project-bullets { list-style: none; margin-bottom: 1.2rem; }
.project-bullets li { font-size: 0.88rem; color: var(--text-muted); padding: 0.2rem 0 0.2rem 1.2rem; position: relative; }
.project-bullets li::before { content: '→'; position: absolute; left: 0; color: var(--teal); }

/* SKILLS */
.skills-section { max-width: 1200px; margin: 0 auto; padding: 0 2.5rem 5rem; }
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.skill-card { background: var(--navy-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.75rem; }
.skill-card-icon { font-size: 1.4rem; margin-bottom: 0.75rem; }
.skill-card h3 { color: #fff; margin-bottom: 1rem; font-size: 0.95rem; font-weight: 600; }
.skill-pills { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.pill { font-size: 0.73rem; font-weight: 600; padding: 0.28rem 0.7rem; border-radius: 100px; background: rgba(255,255,255,0.05); color: var(--text-muted); border: 1px solid var(--border); }
.pill.gold { background: rgba(61,139,255,0.12); color: var(--gold); border-color: rgba(61,139,255,0.25); }
.pill.teal { background: rgba(61,139,255,0.1); color: var(--teal); border-color: rgba(61,139,255,0.2); }

/* RESUME */
.resume-section { max-width: 860px; margin: 0 auto; padding: 0 2.5rem 5rem; }
.download-bar { text-align: right; margin-bottom: 1.75rem; }
.resume-downloads { margin-bottom: 1.5rem; }
.resume-download-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.resume-download-card { display: flex; flex-direction: column; min-height: 150px; padding: 1.25rem 1.4rem; background: var(--navy-card); border: 1px solid var(--border); border-radius: var(--radius); transition: border-color .2s, transform .2s; }
.resume-download-card:hover { border-color: rgba(61,139,255,.55); transform: translateY(-2px); }
.resume-download-card strong { color: #fff; font-size: .96rem; margin-bottom: .35rem; }
.resume-download-card span { color: var(--text-muted); font-size: .82rem; line-height: 1.55; }
.resume-download-card em { color: var(--gold); font-size: .76rem; font-style: normal; font-weight: 600; margin-top: auto; padding-top: .8rem; }
.resume-summary { font-size: .95rem; color: var(--text); line-height: 1.7; }
.resume-skills { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.skills-category-label { font-size: .78rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .1em; margin-bottom: .4rem; }
.skills-category-value { font-size: .9rem; color: var(--text); }
.resume-block { background: var(--navy-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2rem 2.5rem; margin-bottom: 1.5rem; }
.resume-block-title { font-size: 0.73rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.18em; color: var(--gold); font-family: 'Sora', sans-serif; margin-bottom: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.75rem; }
.resume-entry { margin-bottom: 1.75rem; }
.resume-entry:last-child { margin-bottom: 0; }
.resume-entry-header { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.15rem; }
.resume-entry h4 { color: #fff; font-weight: 600; font-size: 1rem; }
.resume-entry .co { color: var(--teal); font-size: 0.88rem; font-weight: 600; }
.resume-dates { font-size: 0.8rem; color: var(--text-muted); }
.resume-bullets { list-style: none; margin-top: 0.6rem; }
.resume-bullets li { font-size: 0.9rem; color: var(--text-muted); padding: 0.22rem 0 0.22rem 1.2rem; position: relative; }
.resume-bullets li::before { content: '▸'; position: absolute; left: 0; color: var(--gold); top: 0.35rem; font-size: 0.7rem; }

/* CONTACT */
.contact-layout { max-width: 900px; margin: 0 auto; padding: 0 2.5rem 5rem; display: grid; grid-template-columns: 1fr 1.5fr; gap: 3rem; align-items: start; }
.contact-info-block h3 { font-size: 0.76rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.15em; color: var(--gold); font-family: 'Sora', sans-serif; margin-bottom: 1.25rem; }
.contact-detail { margin-bottom: 1.4rem; }
.contact-detail span { display: block; font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.2rem; }
.contact-detail a { color: var(--text); font-weight: 500; }
.contact-detail a:hover { color: var(--gold); }
.contact-form-card { background: var(--navy-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2rem; }
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--text-muted); margin-bottom: 0.4rem; }
.form-group input, .form-group textarea {
  width: 100%; background: rgba(255,255,255,0.04);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0.68rem 1rem; color: var(--text);
  font-family: 'Sora', sans-serif; font-size: 0.92rem;
  transition: border-color 0.2s; outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--gold); }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-submit { width: 100%; padding: 0.85rem; border: none; font-family: 'Sora', sans-serif; }
.form-note { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.75rem; text-align: center; }

/* HERO AVAILABILITY */
.hero-availability {
  font-size: 0.88rem; font-weight: 500; color: var(--teal);
  margin-top: -1rem; margin-bottom: 2rem;
  letter-spacing: 0.02em;
}

/* PROFESSIONAL RECORD */
.professional-record {
  background: var(--navy-mid);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 5rem 0;
}
.professional-record-inner { max-width: 1200px; margin: 0 auto; padding: 0 2.5rem; }
.professional-record-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.professional-record-card {
  background: var(--navy-card);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg); padding: 2rem;
  transition: border-color 0.2s, transform 0.2s;
}
.professional-record-card:hover { border-color: rgba(61,139,255,.45); transform: translateY(-3px); }
.professional-record-meta { font-family: 'JetBrains Mono', monospace; font-size: .68rem; font-weight: 600; line-height: 1.55; letter-spacing: .08em; text-transform: uppercase; color: var(--gold); margin-bottom: 1rem; }
.professional-record-card h3 { color: #fff; font-family: 'Fraunces', serif; font-size: 1.4rem; margin-bottom: .7rem; }
.professional-record-card > p { font-size: .9rem; color: var(--text-muted); line-height: 1.7; }
.professional-record-evidence { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; list-style: none; margin-top: 1.4rem; padding-top: 1.1rem; border-top: 1px solid var(--border); }
.professional-record-evidence li { display: flex; flex-direction: column; gap: .12rem; }
.professional-record-evidence strong { color: var(--gold-light); font-family: 'JetBrains Mono', monospace; font-size: 1.3rem; line-height: 1.15; }
.professional-record-evidence span { color: var(--text-muted); font-size: .74rem; line-height: 1.45; }

/* PROJECT DATE */
.project-date { font-size: 0.75rem; color: var(--text-muted); margin: 0.3rem 0 0.5rem; letter-spacing: 0.02em; }

/* ENGINEERING NOTE */
.engineering-note {
  margin-top: 1rem; padding: 0.85rem 1rem;
  background: rgba(61,139,255,0.06); border-left: 3px solid var(--gold);
  border-radius: 0 6px 6px 0;
  font-size: 0.86rem; color: var(--text-muted); line-height: 1.6;
}
.engineering-note strong { color: var(--gold-light); }

/* ANIM */
@keyframes fadeUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }
.fade-in { animation: fadeUp 0.7s both; }
.fade-in:nth-child(2) { animation-delay: 0.12s; }

/* SCROLL REVEAL — active only when JS sets .reveal-on (no-JS / reduced-motion = fully visible, no flash) */
.reveal-on .section-header,
.reveal-on .professional-record-card,
.reveal-on .project-card,
.reveal-on .project-card-full,
.reveal-on .skill-card,
.reveal-on .resume-block,
.reveal-on .timeline-item,
.reveal-on .cta-strip,
.reveal-on .see-all {
  opacity: 0; transform: translateY(18px);
  transition: opacity 0.6s cubic-bezier(0.22,0.61,0.36,1), transform 0.6s cubic-bezier(0.22,0.61,0.36,1);
}
.reveal-on .is-in { opacity: 1 !important; transform: none !important; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 6rem; }
  .hero-visual { display: none; }
  .project-grid { grid-template-columns: 1fr; }
  .about-grid, .contact-layout { grid-template-columns: 1fr; }
  .about-avatar { position: static; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .resume-download-grid { grid-template-columns: 1fr; }
  .projects-full-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: rgba(14,17,23,0.97); backdrop-filter: blur(16px); padding: 1rem 1.5rem 1.5rem; gap: 1rem; border-bottom: 1px solid var(--border); }
  .nav-burger { display: block; }
  .professional-record-grid { grid-template-columns: 1fr; }
  .notes-post-card { grid-template-columns: 1fr; gap: 0.65rem; }
  .notes-entry-link-label { justify-self: start; }
  .notes-principles-list { grid-template-columns: 1fr; gap: 1rem; }
}
@media (max-width: 600px) {
  .skills-grid { grid-template-columns: 1fr; }
  .nav { padding: 1rem 1.25rem; }
  .article-layout { padding-left: 1.25rem; padding-right: 1.25rem; }
  .robotics-hero, .experiment-hero { padding: 6.5rem 1.25rem 2.5rem; }
  .robotics-index, .experiment-layout { padding-left: 1.25rem; padding-right: 1.25rem; }
  .experiment-grid { grid-template-columns: 1fr; }
  .bench-loop li { flex-basis: 100%; }
  .bench-loop li:not(:last-child)::after { content: '↓'; }
}

/* === GALAXY HERO BACKGROUND === */
.hero-stage { position: relative; }
#galaxy-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  display: block; z-index: 0; pointer-events: none;
  /* fallback if WebGL2 is unavailable */
  background:
    radial-gradient(120% 90% at 66% 46%, rgba(61,139,255,0.16), transparent 55%),
    var(--navy);
}
.hero-scrim {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(14,17,23,0.82) 0%, rgba(14,17,23,0.42) 36%, rgba(14,17,23,0) 66%),
    linear-gradient(0deg, rgba(14,17,23,0.55) 0%, rgba(14,17,23,0) 34%);
}
.hero { position: relative; z-index: 2; }

/* AVAILABILITY PAGE */
.avail-wrap { max-width: 680px; margin: 0 auto; padding: 6.5rem 2rem 6rem; }
.avail-eyebrow { font-size: .75rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--gold); margin-bottom: 1.25rem; }
.avail-headline { font-family: 'Fraunces', serif; font-size: clamp(2rem,5vw,3rem); line-height: 1.15; color: var(--text); margin-bottom: 1.5rem; }
.avail-headline em { color: var(--gold); font-style: italic; }
.avail-lede { font-size: 1.05rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 3rem; border-bottom: 1px solid var(--border); padding-bottom: 2.5rem; }
.avail-section { margin-bottom: 2.75rem; }
.avail-section-label { font-size: .7rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 1.1rem; }
.avail-items { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 1.1rem; }
.avail-items li { display: flex; gap: .85rem; align-items: flex-start; font-size: .97rem; color: var(--text-muted); line-height: 1.5; }
.avail-items li::before { content: '—'; color: var(--gold); flex-shrink: 0; font-weight: 600; margin-top: .05rem; }
.avail-item-body { display: flex; flex-direction: column; gap: .2rem; }
.avail-item-body strong { color: var(--text); font-weight: 500; font-size: .97rem; line-height: 1.4; }
.avail-item-body strong a { color: var(--gold); border-bottom: 1px solid currentColor; }
.avail-item-body span { color: var(--text-muted); font-size: .92rem; line-height: 1.55; }
.avail-item-body .avail-detail { padding-left: .85rem; border-left: 1px solid rgba(125,174,255,.3); font-size: .82rem; line-height: 1.6; }
.avail-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .35rem; }
.avail-tag { font-size: .78rem; background: rgba(255,255,255,.04); border: 1px solid var(--border); border-radius: 4px; padding: .2rem .6rem; color: var(--text-muted); }
.avail-divider { border: none; border-top: 1px solid var(--border); margin: 2.5rem 0; }
.avail-ask { background: #0E1C32; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2rem 2.25rem; margin-bottom: 2.75rem; }
.avail-ask p { font-size: .97rem; color: var(--text-muted); line-height: 1.7; margin: 0; }
.avail-actions { display: flex; gap: .75rem; flex-wrap: wrap; }

/* ROBOTICS TEST BENCH · PAPER SURFACE */
.robotics-page {
  --bench-ink: #214b78;
  --bench-blue: #2f69ad;
  --bench-muted: #4d6884;
  --bench-line: rgba(47, 105, 173, .24);
  background-color: #e8ecf1;
  background-image: linear-gradient(rgba(77, 127, 189, .055) 1px, transparent 1px), linear-gradient(90deg, rgba(77, 127, 189, .055) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--bench-ink);
}
.robotics-page .nav { background: rgba(232, 236, 241, .92); border-bottom-color: var(--bench-line); }
.robotics-page .nav-logo, .robotics-page .nav-links a.nav-notes { color: var(--bench-ink); }
.robotics-page .nav-links a { color: var(--bench-muted); }
.robotics-page .nav-links a:hover, .robotics-page .nav-links a.active { color: var(--bench-ink); }
.robotics-page .nav-links a.nav-notes { border-color: var(--bench-line); }
.robotics-page .nav-links a.nav-notes:hover, .robotics-page .nav-links a.nav-notes.active { color: var(--bench-ink); border-color: var(--bench-blue); }
.robotics-page .nav-links a.nav-cta { background: var(--bench-blue); color: #fff; }
.robotics-page .nav-links a.nav-cta-outline { border-color: var(--bench-blue); color: var(--bench-blue); }
.robotics-page .nav-burger { color: var(--bench-ink); }
.robotics-page h1, .robotics-page h2, .robotics-page h3 { font-family: 'JetBrains Mono', monospace; font-weight: 600; letter-spacing: -.045em; }
.robotics-page .robotics-hero { background-image: none; }
.robotics-page .robotics-hero h1, .robotics-page .experiment-hero h1, .robotics-page .experiment-layout h2, .robotics-page .experiment-card h3 { color: var(--bench-ink); }
.robotics-page .robotics-hero > p:not(.section-eyebrow), .robotics-page .experiment-hero > p:not(.section-eyebrow), .robotics-page .experiment-layout p, .robotics-page .experiment-card p, .robotics-page .robotics-source span { color: var(--bench-muted); }
.robotics-page .section-eyebrow, .robotics-page .step-label { color: var(--bench-blue) !important; }
.robotics-page .bench-loop { border-color: var(--bench-line); }
.robotics-page .bench-loop li { color: var(--bench-blue); }
.robotics-page .bench-loop li:not(:last-child)::after { color: var(--bench-muted); }
.robotics-page .experiment-card { background: rgba(242, 245, 248, .62); border-color: var(--bench-line); }
.robotics-page .experiment-card:hover { border-color: var(--bench-blue); }
.robotics-page .experiment-card-meta, .robotics-page .status-resolved { color: var(--bench-blue); }
.robotics-page .experiment-card .experiment-question { color: var(--bench-ink); }
.robotics-page .experiment-card a, .robotics-page .robotics-source a, .robotics-page .source-section a, .robotics-page .experiment-back, .robotics-page .data-provenance a { color: var(--bench-blue); }
.robotics-page .experiment-card a:hover, .robotics-page .robotics-source a:hover, .robotics-page .source-section a:hover, .robotics-page .experiment-back:hover { color: var(--bench-ink); }
.robotics-page .robotics-source { border-left-color: var(--bench-blue); }
.robotics-page .experiment-layout > section { border-top-color: var(--bench-line); }
.robotics-page .experiment-layout code { color: var(--bench-blue); }
.robotics-page .evidence-callout { background: rgba(35, 103, 173, .08); border-left-color: var(--bench-blue); }
.robotics-page .model-control-figure { border-color: var(--bench-line); background: rgba(242, 245, 248, .7); }
.robotics-page .model-control-figure-head h3 { color: var(--bench-ink); }
.robotics-page .model-control-figure-head p:not(.step-label), .robotics-page .model-control-figure figcaption { color: var(--bench-muted); }
.robotics-page .model-control-controls { border-top-color: var(--bench-line); }
.robotics-page .model-control-controls label, .robotics-page .model-control-controls p { color: var(--bench-muted); }
.robotics-page .model-control-controls output { color: var(--bench-ink); }
.robotics-page .trajectory-explorer { background: rgba(242, 245, 248, .7); border-color: var(--bench-line); }
.robotics-page .visual-toolbar, .robotics-page .timeline-controls, .robotics-page .state-readout { border-color: var(--bench-line); }
.robotics-page .visual-toggle, .robotics-page .timeline-controls label, .robotics-page .timeline-controls p, .robotics-page .data-provenance, .robotics-page .explorer-stage text { color: var(--bench-muted); }
.robotics-page .visual-toggle:hover, .robotics-page .visual-toggle:focus-visible, .robotics-page .visual-toggle.is-active { border-color: var(--bench-blue); color: var(--bench-ink); }
.robotics-page .visual-caption { background: rgba(35, 103, 173, .06); }
.robotics-page .visual-caption strong, .robotics-page .timeline-controls output, .robotics-page .state-readout dd { color: var(--bench-ink); }
.robotics-page .play-toggle { border-color: var(--bench-blue); color: var(--bench-ink); }
.robotics-page .play-toggle:hover, .robotics-page .play-toggle:focus-visible { border-color: var(--bench-ink); }
.robotics-page .state-readout div { border-color: var(--bench-line); }
.robotics-page .state-readout dt { color: var(--bench-blue); }
.robotics-page .arm-link { stroke: var(--bench-blue); }
.robotics-page .arm-joint { fill: #fff; stroke: var(--bench-ink); }
.robotics-page .arm-tip { fill: var(--bench-blue); }
.robotics-page .arm-trace { stroke: rgba(35, 103, 173, .5); }
.robotics-page .footer { border-top-color: var(--bench-line); color: var(--bench-muted); background: rgba(232, 236, 241, .72); }
.robotics-page .footer-links a:hover { color: var(--bench-blue); }
@media (max-width: 760px) { .robotics-page .nav-links.open { background: rgba(232, 236, 241, .98); border-bottom-color: var(--bench-line); } }

/* SPIDER · LONGITUDINAL ROBOTICS PROJECT */
.spider-hero, .spider-layout { max-width: 1060px; margin: 0 auto; }
.spider-hero { padding: 8rem 2.5rem 3.5rem; background: radial-gradient(ellipse at 75% 10%, rgba(61,139,255,.18), transparent 42%); }
.spider-hero h1 { color: #fff; margin-bottom: .85rem; }
.spider-hero > p:not(.section-eyebrow) { color: var(--text-muted); max-width: 660px; font-size: 1.08rem; }
.spider-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.5rem; }
.spider-layout { padding: 0 2.5rem 5rem; }
.spider-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.spider-summary > div { padding: 1.5rem; background: var(--navy-card); }
.spider-summary h2, .spider-artifact h2, .spider-evidence h2 { color: #fff; font-size: 1.3rem; margin-bottom: .5rem; }
.spider-summary p:not(.step-label), .spider-evidence > p { color: var(--text-muted); font-size: .9rem; line-height: 1.65; }
.spider-artifact, .spider-evidence { margin-top: 1.5rem; padding: 1.75rem; background: var(--navy-card); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.artifact-head { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.spider-artifact-meta { display: flex; align-items: start; justify-content: end; gap: 1rem; }
.spider-release-picker { display: grid; gap: .2rem; color: var(--text-muted); font: 600 .62rem 'JetBrains Mono', monospace; letter-spacing: .07em; text-transform: uppercase; }
.spider-release-picker select { min-width: 128px; padding: .38rem .5rem; border: 1px solid rgba(125,174,255,.5); border-radius: 4px; background: #111926; color: #fff; font: 500 .72rem 'JetBrains Mono', monospace; letter-spacing: 0; text-transform: none; }
.spider-release-picker select:focus-visible { border-color: #fff; outline: 1px solid #fff; outline-offset: 2px; }
.artifact-status { color: var(--gold-light); font: 600 .7rem 'JetBrains Mono', monospace; letter-spacing: .04em; text-align: right; }
.artifact-intro, .data-provenance { color: var(--text-muted); font-size: .84rem; max-width: 720px; margin-top: .4rem; }
.spider-stage { height: clamp(330px, 56vw, 560px); margin-top: 1.3rem; border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius); overflow: hidden; background: radial-gradient(110% 84% at 50% 3%, rgba(255,255,255,.11), transparent 48%), linear-gradient(180deg, #1a1a1d 0%, #0a0a0c 70%); box-shadow: inset 0 1px 0 rgba(255,255,255,.09), inset 0 -70px 90px rgba(0,0,0,.2); touch-action: none; }
.spider-stage canvas { display: block; width: 100%; height: 100%; cursor: grab; background: transparent; }
.spider-stage canvas:active { cursor: grabbing; }
.spider-controls { display: grid; grid-template-columns: repeat(4, max-content); gap: .7rem .9rem; align-items: center; padding: 1rem 0; border-bottom: 1px solid var(--border); }
.spider-controls .play-toggle { min-width: 0; }
.spider-controls label, .spider-controls p { color: var(--text-muted); font-size: .8rem; }
.spider-controls output { color: #fff; font-family: 'JetBrains Mono', monospace; }
.spider-controls input { min-width: 0; grid-column: 1 / -1; accent-color: var(--gold); }
.spider-controls p { grid-column: 1 / -1; }
.spider-readout { display: grid; grid-template-columns: repeat(3, 1fr); gap: .65rem; margin-top: 1rem; }
.spider-readout div { border: 1px solid var(--border); border-radius: 6px; padding: .7rem .8rem; }
.spider-readout dt { color: var(--gold-light); font: 600 .66rem 'JetBrains Mono', monospace; letter-spacing: .06em; text-transform: uppercase; }
.spider-readout dd { color: #fff; font: .78rem 'JetBrains Mono', monospace; margin-top: .2rem; }
.spider-telemetry { margin-top: 1.25rem; padding-top: 1.2rem; border-top: 1px solid var(--border); }
.spider-telemetry-head { display: flex; justify-content: space-between; gap: 1.5rem; align-items: end; }
.spider-telemetry h3 { color: #fff; font-size: 1rem; }
.spider-telemetry-head > p { max-width: 430px; color: var(--text-muted); font-size: .76rem; line-height: 1.55; text-align: right; }
.spider-chart-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; margin-top: .8rem; }
.spider-chart { min-width: 0; padding: .7rem; border: 1px solid var(--border); border-radius: 6px; background: #11161f; }
.spider-chart figcaption { display: flex; align-items: center; justify-content: space-between; gap: .5rem; color: var(--text-muted); font: .65rem 'JetBrains Mono', monospace; line-height: 1.35; }
.spider-chart figcaption strong { color: #fff; font-weight: 500; }
.spider-chart figcaption span { display: inline-flex; align-items: center; justify-content: end; gap: .25rem; text-align: right; }
.chart-line { display: inline-block; width: 10px; height: 2px; border-radius: 999px; vertical-align: middle; }
.chart-line-blue { background: #7daeff; }
.chart-line-slate { background: #c0ccd9; }
.chart-line-red { background: #d90508; }
.spider-chart canvas { display: block; width: 100%; height: 170px; margin-top: .5rem; }
.spider-evidence { max-width: 760px; }
.spider-evidence ul { margin: 1rem 0 1.25rem 1.2rem; color: var(--text-muted); font-size: .9rem; }
.spider-evidence li + li { margin-top: .45rem; }
.spider-evidence a, .data-provenance a { color: var(--gold-light); border-bottom: 1px solid rgba(125,174,255,.45); }
@media (max-width: 760px) { .spider-hero { padding: 6.5rem 1.25rem 2.5rem; } .spider-layout { padding-left: 1.25rem; padding-right: 1.25rem; } .spider-summary, .spider-readout, .spider-chart-grid { grid-template-columns: 1fr; } .spider-artifact, .spider-evidence { padding: 1.25rem; } .artifact-head, .spider-telemetry-head { display: block; } .spider-artifact-meta { justify-content: start; margin-top: .8rem; } .artifact-status { text-align: left; margin-top: .5rem; } .spider-telemetry-head > p { margin-top: .5rem; text-align: left; } .spider-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem; } }

/* SPIDER · ROBOTICS STYLE
   Shared paper-surface treatment for integrated robotics artifacts. */
.spider-page.robotics-page .spider-hero { background: transparent; border-bottom: 1px solid var(--bench-line); }
.spider-page.robotics-page .spider-hero h1, .spider-page.robotics-page .spider-summary h2, .spider-page.robotics-page .spider-artifact h2, .spider-page.robotics-page .spider-evidence h2, .spider-page.robotics-page .spider-telemetry h3 { color: var(--bench-ink); }
.spider-page.robotics-page .spider-hero > p:not(.section-eyebrow), .spider-page.robotics-page .spider-summary p:not(.step-label), .spider-page.robotics-page .spider-evidence > p, .spider-page.robotics-page .spider-evidence ul, .spider-page.robotics-page .artifact-intro, .spider-page.robotics-page .data-provenance, .spider-page.robotics-page .spider-controls p, .spider-page.robotics-page .spider-telemetry-head > p { color: var(--bench-muted); }
.spider-page.robotics-page .spider-actions .btn-primary { background: var(--bench-blue); color: #fff; }
.spider-page.robotics-page .spider-actions .btn-primary:hover { background: var(--bench-ink); }
.spider-page.robotics-page .spider-actions .btn-ghost { border-color: var(--bench-blue); color: var(--bench-blue); }
.spider-page.robotics-page .spider-actions .btn-ghost:hover { border-color: var(--bench-ink); color: var(--bench-ink); }
.spider-page.robotics-page .spider-summary, .spider-page.robotics-page .spider-summary > div, .spider-page.robotics-page .spider-artifact, .spider-page.robotics-page .spider-evidence { background: rgba(242,245,248,.72); border-color: var(--bench-line); }
.spider-page.robotics-page .spider-summary { background: var(--bench-line); }
.spider-page.robotics-page .artifact-status { color: var(--bench-blue); }
.spider-page.robotics-page .spider-release-picker { color: var(--bench-muted); }
.spider-page.robotics-page .spider-release-picker select { border-color: var(--bench-blue); background: #f2f5f8; color: var(--bench-ink); }
.spider-page.robotics-page .spider-release-picker select:focus-visible { border-color: var(--bench-ink); outline-color: var(--bench-ink); }
.spider-page.robotics-page .spider-stage { position: relative; border-color: var(--bench-blue); background-color: #e8ecf1; background-image: linear-gradient(rgba(77,127,189,.1) 1px, transparent 1px), linear-gradient(90deg, rgba(77,127,189,.1) 1px, transparent 1px); background-size: 28px 28px; box-shadow: none; }
.spider-page.robotics-page .spider-hud { position: absolute; z-index: 1; top: .75rem; right: .75rem; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .35rem; width: min(34%, 320px); pointer-events: none; }
.spider-page.robotics-page .spider-hud-title { grid-column: 1 / -1; margin: 0; color: var(--bench-muted); font: 500 .56rem 'JetBrains Mono', monospace; letter-spacing: .05em; text-transform: uppercase; }
.spider-page.robotics-page .spider-glyph { min-width: 0; margin: 0; padding: .32rem .38rem .28rem; border: 1px solid rgba(47,105,173,.42); background: rgba(242,245,248,.9); }
.spider-page.robotics-page .spider-glyph figcaption { display: flex; justify-content: space-between; gap: .3rem; color: var(--bench-muted); font: 500 .54rem 'JetBrains Mono', monospace; letter-spacing: .02em; line-height: 1.25; white-space: nowrap; }
.spider-page.robotics-page .spider-glyph output { color: var(--bench-ink); font: inherit; font-variant-numeric: tabular-nums; }
.spider-page.robotics-page .spider-hud canvas { display: block; width: 100%; height: 34px; margin-top: .2rem; cursor: default; background: transparent; }
.spider-page.robotics-page .spider-controls, .spider-page.robotics-page .spider-telemetry { border-color: var(--bench-line); }
.spider-page.robotics-page .spider-readout div, .spider-page.robotics-page .spider-chart { border-color: var(--bench-line); background: rgba(242,245,248,.78); }
.spider-page.robotics-page .spider-readout dt, .spider-page.robotics-page .spider-telemetry .step-label { color: var(--bench-blue) !important; }
.spider-page.robotics-page .spider-readout dd, .spider-page.robotics-page .spider-chart figcaption strong { color: var(--bench-ink); }
.spider-page.robotics-page .spider-chart figcaption, .spider-page.robotics-page .spider-chart figcaption span { color: var(--bench-muted); }
.spider-page.robotics-page .chart-line-blue { background: var(--bench-blue); }
.spider-page.robotics-page .chart-line-slate { background: var(--bench-ink); }
.spider-page.robotics-page .chart-line-red { background: #b5433f; }
.spider-page.robotics-page .spider-evidence a, .spider-page.robotics-page .data-provenance a { color: var(--bench-blue); border-bottom-color: currentColor; }
.spider-page.robotics-page .engineering-note { background: rgba(35,103,173,.08); border-left-color: var(--bench-blue); color: var(--bench-muted); }
.spider-page.robotics-page .engineering-note strong { color: var(--bench-ink); }
@media (max-width: 560px) { .spider-page.robotics-page .spider-hud { right: .5rem; width: calc(100% - 1rem); } .spider-page.robotics-page .spider-glyph figcaption { font-size: .48rem; } }

/* SPIDER · PORTFOLIO PROJECTIONS */
.spider-project-card, .spider-project-card-full, .spider-avail-item { background-color: #e8ecf1; background-image: linear-gradient(rgba(77,127,189,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(77,127,189,.08) 1px, transparent 1px); background-size: 28px 28px; border-color: rgba(47,105,173,.42); }
.spider-project-card:hover, .spider-project-card-full:hover { border-color: #2f69ad; }
.spider-project-card h3, .spider-project-card-full h3, .spider-project-card-full .engineering-note strong { color: #214b78; }
.spider-project-card p, .spider-project-card-full p, .spider-project-card-full .project-bullets li, .spider-project-card-full .engineering-note { color: #4d6884; }
.spider-project-card .project-tag, .spider-project-card .project-meta span, .spider-project-card-full .project-tag, .spider-project-card-full .project-meta span { color: #214b78; background: rgba(47,105,173,.09); border: 1px solid rgba(47,105,173,.24); }
.spider-project-card-full .project-link, .spider-inline-link, .spider-avail-item .avail-item-body strong a { color: #2f69ad; border-bottom-color: currentColor; }
.spider-project-card-full .engineering-note, .spider-avail-item .avail-detail { background: rgba(47,105,173,.08); border-left-color: #2f69ad; }
.avail-items li.spider-avail-item { gap: .85rem; padding: 1rem; color: #4d6884; }
.avail-items li.spider-avail-item::before { color: #2f69ad; }
.spider-avail-item .avail-item-body strong { color: #214b78; }
.spider-avail-item .avail-item-body span { color: #4d6884; }