/* ==========================================================================
   Unruly — Intelligences in Music AI
   Palette N2 "deep blue × gold" (Build Spec §2). Self-hosted fonts.
   ========================================================================== */

/* --- Self-hosted faces (OFL, no third-party calls) --- */
@font-face { font-family:"Barrio";   src:url("fonts/Barrio-Regular.woff2") format("woff2");   font-weight:400; font-display:swap; }
@font-face { font-family:"Spectral"; src:url("fonts/Spectral-Regular.woff2") format("woff2");  font-weight:400; font-style:normal; font-display:swap; }
@font-face { font-family:"Spectral"; src:url("fonts/Spectral-SemiBold.woff2") format("woff2"); font-weight:600; font-style:normal; font-display:swap; }
@font-face { font-family:"Spectral"; src:url("fonts/Spectral-Italic.woff2") format("woff2");   font-weight:400; font-style:italic; font-display:swap; }

:root {
  /* palette N2 (locked, Build Spec §2) */
  --bg-light:   #f2f1ee;  /* cool stone — default page background */
  --bg-card:    #faf9f5;  /* warm off-white — cards / paper surfaces */
  --bg-stage:   #16181d;  /* deep ink — "stage" panels (modest, not pure black) */
  --ink:        #16181d;  /* near-black body text on light */
  --ink-soft:   #54565c;  /* secondary text on light */
  --paper-ink:  #eceef2;  /* body text on stage panels */
  --paper-soft: #9aa0ad;  /* secondary text on stage */
  --accent-blue:#1f3a5f;  /* deep cobalt — headings / numerals / edges */
  --accent-gold:#c9a23f;  /* dark gold — accents / dividers / "lit" marks */

  --display:    "Barrio", system-ui, cursive;
  --font-sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Spectral", Georgia, "Times New Roman", serif;

  --measure: 65ch;
  --pad: clamp(1.25rem, 5vw, 4rem);
  --nav-h: 3.25rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg-light);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: clamp(1rem, 0.6rem + 0.7vw, 1.15rem);
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

/* --- skip link (2.4.1) --- */
.skip-link {
  position: absolute; left: 0.5rem; top: -3rem; z-index: 100;
  background: var(--ink); color: var(--bg-light);
  padding: 0.6rem 1rem; border-radius: 0 0 0.4rem 0.4rem;
  text-decoration: none; transition: top 0.15s ease;
}
.skip-link:focus { top: 0; }

/* --- visible focus rings (2.4.7) --- */
:focus-visible { outline: 3px solid var(--accent-blue); outline-offset: 2px; }
.panel--stage :focus-visible { outline-color: var(--accent-gold); }

/* --- sticky nav --- */
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg-light) 92%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--accent-blue);
}
.nav { display: flex; align-items: center; gap: 1rem; min-height: var(--nav-h); padding: 0 var(--pad); flex-wrap: wrap; }
.nav__brand { font-family: var(--display); font-size: 1.6rem; text-decoration: none; color: var(--accent-blue); margin-right: auto; }
.nav__list { display: flex; gap: clamp(0.5rem, 2vw, 1.5rem); list-style: none; margin: 0; padding: 0.25rem 0; flex-wrap: wrap; }
.nav__list a {
  text-decoration: none; color: var(--ink); font-size: 0.9rem;
  padding: 0.3rem 0.1rem; border-bottom: 3px solid transparent;
}
.nav__list a:hover { border-bottom-color: var(--accent-gold); }
.nav__list a[aria-current="true"] { border-bottom-color: var(--accent-gold); font-weight: 700; color: var(--accent-blue); }

/* --- panels / staging rhythm (§9) --- */
.panel { padding: clamp(3rem, 10vh, 7rem) var(--pad); scroll-margin-top: var(--nav-h); }
.panel--light { background: var(--bg-light); color: var(--ink); }
.panel--stage { background: var(--bg-stage); color: var(--paper-ink); }
.panel > * { max-width: var(--measure); }

h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: 1.1; letter-spacing: 0.01em; }
/* all section headings are one (big) size — flattened, no group-title tier (spec §4) */
h2 { font-size: clamp(1.8rem, 1rem + 3vw, 3rem); }
h3 { font-size: clamp(1.4rem, 1rem + 2vw, 2.2rem); }
.panel--light > h2 { color: var(--accent-blue); }   /* light-panel section headings; stage headings stay paper-ink; card h3s keep their own style */

/* ==========================================================================
   PART 0 · hero + quick view
   ========================================================================== */
.hero { padding-top: 0; }
.hero__stage {
  min-height: calc(100svh - var(--nav-h));
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; gap: 1rem; max-width: none;
}
.hero__title {
  /* revised 6/22 — ~60% of the old giant, ~1/5 viewport height, leaves room for the quick-intro */
  font-size: clamp(2.6rem, 15vw, 9rem); margin: 0; color: var(--paper-ink);
  text-shadow: 0.03em 0 0 var(--accent-blue), -0.03em 0 0 var(--accent-gold);
  animation: glitch 5.5s infinite;
}
.jitter .j { display: inline-block; will-change: transform; }

.hero__subtitle { font-size: clamp(1rem, 1rem + 1.6vw, 1.8rem); margin: 0; color: var(--paper-ink); opacity: 0.95; }

/* [NEW] quick-intro on the first screen */
.hero__intro { margin: 0.5rem auto 0; max-width: 52ch; display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.hero__intro-line { margin: 0; font-size: clamp(0.95rem, 1rem + 0.4vw, 1.15rem); color: var(--paper-ink); line-height: 1.5; }
.stat-row { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 0.4rem 1.4rem; }
.stat-row li { display: inline-flex; align-items: baseline; gap: 0.4rem; position: relative; }
.stat-row li:not(:last-child)::after { content: "·"; position: absolute; right: -0.85rem; color: var(--paper-soft); }
.stat__n { font-family: var(--font-sans); font-weight: 700; font-size: 1.5rem; color: var(--accent-gold); }  /* gold not blue: blue fails AA on the deep-ink hero */
.stat__l { font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--paper-soft); }

/* gentle, low-frequency glitch — no opacity flashing → no flash >3/sec (2.3.1) */
@keyframes glitch {
  0%, 88%, 100% { text-shadow: 0.03em 0 0 var(--accent-blue), -0.03em 0 0 var(--accent-gold); transform: none; }
  90% { text-shadow:  0.09em 0 0 var(--accent-blue), -0.06em 0 0 var(--accent-gold); transform: translateX(-2px); }
  93% { text-shadow: -0.05em 0 0 var(--accent-blue),  0.08em 0 0 var(--accent-gold); transform: translateX(3px); }
  96% { text-shadow:  0.11em 0.02em 0 var(--accent-blue), -0.09em 0 0 var(--accent-gold); transform: translate(-3px, 1px); }
}
.glitch-paused .hero__title { animation-play-state: paused; }
@media (prefers-reduced-motion: reduce) { .hero__title { animation: none; } }

.glitch-toggle {
  font-family: var(--font-sans); font-size: 0.85rem; color: var(--paper-ink);
  background: transparent; border: 1px solid var(--paper-soft); border-radius: 2rem;
  padding: 0.4rem 0.9rem; cursor: pointer;
}
.glitch-toggle:hover { background: color-mix(in srgb, var(--paper-ink) 12%, transparent); }

.scroll-cue {
  margin: 1.5rem 0 0; font-size: 0.8rem; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--paper-soft); animation: bob 2.4s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(0.4rem); } }
@media (prefers-reduced-motion: reduce) { .scroll-cue { animation: none; } }

/* second screen — positioning line + three RQs */
.quickview { max-width: var(--measure); margin: 0 auto; }
.positioning { font-size: clamp(1.3rem, 1rem + 2vw, 2.2rem); line-height: 1.3; margin: 0 0 3rem; color: var(--paper-ink); }
.rqs { list-style: none; margin: 0 0 2.5rem; padding: 0; display: grid; gap: 2rem; }
.rqs li { display: flex; gap: 1.25rem; align-items: baseline; }
.rq__n {
  font-family: var(--display); font-size: clamp(2rem, 1rem + 5vw, 4rem); line-height: 0.9;
  color: var(--accent-gold); flex: none;   /* gold on deep-ink stage clears AA at display size (A4) */
}
.rq__t { font-size: clamp(1.05rem, 1rem + 0.8vw, 1.4rem); color: var(--paper-ink); }

/* ==========================================================================
   PART 1 · Unruly Questions — static 2×2 grid (flattened; no rotator gate)
   ========================================================================== */
.q-grid {
  max-width: 880px; margin-top: 2rem;
  display: grid; gap: 1.1rem; grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 640px) { .q-grid { grid-template-columns: 1fr; } }

.q-card {
  /* faint spectrogram bars + halftone dots — background only, text stays AA */
  background:
    radial-gradient(circle at 1.4px 1.4px, rgba(31,58,95,0.07) 0.6px, transparent 1.1px) 0 0 / 7px 7px,
    repeating-linear-gradient(90deg, rgba(31,58,95,0.05) 0 1px, transparent 1px 6px),
    var(--bg-card);
  border: 1.5px solid var(--accent-blue); color: var(--ink);
  padding: 1.3rem 1.3rem 1.2rem; display: flex; flex-direction: column; gap: 0.5rem;
}
.q-card:nth-child(2n) { background-position: 3px 2px, 0 0, 0 0; }
.q-card:nth-child(3n) { background-position: 1px 4px, 0 0, 0 0; }

.face__discipline { margin: 0; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--accent-blue); font-weight: 700; }
.face__q { margin: 0; font-size: clamp(1.05rem, 1rem + 0.6vw, 1.3rem); line-height: 1.25; color: var(--ink); }
.face__related { margin: 0.2rem 0 0; font-style: italic; font-size: 0.9rem; line-height: 1.4; color: var(--ink-soft); }
.face__kicker { font-style: normal; font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.22em; color: color-mix(in srgb, var(--accent-blue) 70%, transparent); margin-right: 0.4rem; }

/* ==========================================================================
   PART 1 · §1b Unruly Terms — ex-libris card catalogue (style T-B, Build Spec §1b)
   ========================================================================== */
.terms-intro { max-width: 60ch; font-size: 1.05rem; color: var(--ink); margin: 0 0 0.5rem; }
.terms-intro .terms-intro__label { display: block; font-family: var(--font-sans); font-size: 0.7rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--accent-blue); margin-bottom: 0.6rem; }

/* long-scroll glossary: full text inline, serif, thin gold left rule, generous leading */
.term-list { max-width: 70ch; margin: 1.5rem 0 0; }
.term {
  border-left: 3px solid var(--accent-gold);
  padding: 0.1rem 0 0.1rem 1.4rem; margin: 0 0 2.6rem;
  scroll-margin-top: var(--nav-h);
}
.term__name {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(1.5rem, 1rem + 1.6vw, 2rem); line-height: 1.1; color: var(--ink);
  margin: 0 0 0.7rem;
}
.term__alt { font-size: 0.6em; font-style: italic; font-weight: 400; color: var(--ink-soft); }
.term__body { font-family: var(--font-serif); font-size: 1.05rem; line-height: 1.8; color: #33312a; }
.term__body p { margin: 0 0 1rem; }
.term__body p:last-child { margin-bottom: 0; }
.term__note { color: var(--ink-soft); margin-top: 1rem; }
.term__player { width: 100%; max-width: 440px; margin: 0.1rem 0 0.4rem; }
.term-tocome {
  max-width: 70ch; margin: 0; padding-top: 1.2rem;
  border-top: 1px solid color-mix(in srgb, var(--accent-blue) 25%, transparent);
  font-family: var(--font-sans); font-size: 0.9rem; font-style: italic; color: var(--ink-soft);
}

/* ==========================================================================
   PART 2 · Datasets · Interfaces · Wisdom — center node + 3 material portals
   ========================================================================== */
.diw-lead { font-size: clamp(1.1rem, 1rem + 1vw, 1.4rem); color: var(--ink); margin: 0 0 2.5rem; }
.diw { max-width: 1040px; display: flex; flex-direction: column; align-items: center; }

/* decorative center hub with a connector line down to the portals */
.diw__center {
  width: clamp(6rem, 14vw, 8.5rem); aspect-ratio: 1; display: grid; place-items: center;
  border-radius: 50%; background: var(--bg-stage); color: var(--paper-ink);
  font-family: var(--display); font-size: clamp(1.1rem, 1rem + 1.4vw, 1.7rem);
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent-gold) 35%, transparent);
  position: relative;
}
.diw__center::after {
  content: ""; position: absolute; top: 100%; left: 50%; width: 2px; height: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--accent-blue); transform: translateX(-50%);
}

.diw__portals {
  max-width: none; width: 100%; margin-top: clamp(1.5rem, 4vw, 2.5rem);
  display: grid; gap: 1.25rem; grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 720px) { .diw__portals { grid-template-columns: 1fr; } }

.portal {
  position: relative; display: flex; flex-direction: column; gap: 0.4rem;
  padding: 1.4rem 1.3rem; border: 1px solid var(--accent-blue); background: var(--bg-card);
  color: var(--ink); scroll-margin-top: var(--nav-h);
}
.portal::before {   /* decorative connector tick toward the hub */
  content: ""; position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
  width: 2px; height: 1rem; background: color-mix(in srgb, var(--accent-blue) 45%, transparent);
}
.portal__kicker { font-size: 0.7rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--accent-blue); }
.portal__name { font-size: clamp(1.5rem, 1rem + 2vw, 2rem); line-height: 1.05; color: var(--ink); }
.portal__intro { font-size: 0.95rem; line-height: 1.5; color: var(--ink-soft); margin-top: 0.3rem; }

/* neutral portals — distinguished by shape only, no machine-vs-human texture (r3, per Jeff) */
.portal--data  { border-radius: 0; }
.portal--touch { border-radius: 1.4rem; }
.portal--paper { border-radius: 0.5rem; }

/* ==========================================================================
   PART 3 · §3a Unruly Team (4 PI+RA pairs) · §3b Unruly Hopes
   ========================================================================== */
.team-grid {
  list-style: none; margin: 0; padding: 0; max-width: 1000px;
  display: grid; gap: 1.25rem; grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 720px) { .team-grid { grid-template-columns: 1fr; } }

/* light frame = "a discipline's little team" */
.pair {
  border: 1px solid color-mix(in srgb, var(--paper-ink) 24%, transparent);
  background: rgba(255,255,255,0.02);
  display: flex; flex-direction: column;
}
/* the only Barrio bit in a cell — small, tucked top-right (JS adds gentle jitter) */
.pair__discipline {
  align-self: flex-end; margin: 0.7rem 0.95rem 0; max-width: 70%;
  font-family: var(--display); font-size: 0.95rem; line-height: 1.05;
  color: var(--accent-gold); text-align: right;
}
.pair__discipline .j { display: inline-block; }
.person { padding: 0.6rem 1.4rem 1.3rem; }
.person--ra { margin-top: 0.4rem; padding-top: 1.2rem; border-top: 1px solid color-mix(in srgb, var(--paper-ink) 16%, transparent); }
/* per-person title line (RAs); PIs use the <details> .person__title below */
.person__titleline { font-family: var(--font-sans); font-size: 0.82rem; line-height: 1.4; color: var(--paper-soft); margin: 0 0 0.5rem; }
.person__titleline--tba { font-style: italic; opacity: 0.85; }
.person__name { font-family: var(--font-sans); font-weight: 600; font-size: clamp(1.2rem, 1rem + 1.1vw, 1.55rem); line-height: 1.1; margin: 0 0 0.45rem; color: var(--paper-ink); }
/* person title (RAs) + PI <details>; bios removed in r2 follow-up */
.person__title { margin: 0 0 0.55rem; max-width: 42ch; }
.person__title summary { font-family: var(--font-sans); font-size: 0.82rem; line-height: 1.4; color: var(--paper-soft); cursor: pointer; }
.person__title summary:hover { color: var(--paper-ink); }
.person__title > p { margin: 0.4rem 0 0; font-family: var(--font-sans); font-size: 0.82rem; line-height: 1.45; color: var(--paper-ink); }

/* §3b Hopes — clearly-marked empty author box */
.hopes-box {
  border: 1.5px dashed var(--accent-gold); border-radius: 3px; background: var(--bg-card);
  padding: clamp(1.5rem, 5vw, 2.5rem); max-width: var(--measure); min-height: 8rem;
}
.hopes-box__label { font-family: var(--font-sans); font-style: italic; color: var(--ink-soft); margin: 0 0 0.5rem; }
.hopes-box__hint { color: var(--ink-soft); margin: 0; }

/* --- placeholder markers (visible, per spec §4) — academic "draft" chip --- */
.placeholder {
  display: inline-block; font-family: var(--font-sans); font-size: 0.8rem; font-style: italic;
  letter-spacing: 0.02em; background: #e6e3da; color: var(--ink-soft);
  padding: 0.3rem 0.7rem; border: 1px dashed var(--accent-gold); border-radius: 2px;
}
.panel--stage .placeholder { background: rgba(236,238,242,0.06); color: var(--paper-soft); border-color: var(--paper-soft); }

/* --- footer --- */
.site-foot { padding: 2rem var(--pad); border-top: 1px solid var(--accent-blue); font-size: 0.9rem; color: var(--ink-soft); }

/* --- screen-reader-only util --- */
.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; }