/* hub.css: the static state pages (music-standards/**). Hand-written.
   Same paper, ink and type as index.html so the two halves of the site read as one. */
:root {
  --c-red: #e72829; --d-orange: #f39422; --e-yellow: #f1e606; --f-green: #6abb4a;
  --g-teal: #099695; --a-purple: #7b569e; --b-pink: #ea6ba3;
  --paper: #f5f5f3; --paper-light: #fbfbf9; --paper-deep: #ebebe8;
  --ink: #1f1d1a; --ink-soft: #4a463f; --ink-faded: #8a8478;
  --rule: #d8d4cb; --rule-soft: #e8e5dd;
  --gold: #9a7320; --gold-tint: #f5edd6;
  --state: #3d7eb5; --state-tint: #e8f1fa;
  --navy: #1b233e;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter Tight', system-ui, sans-serif; background: var(--paper); color: var(--ink); line-height: 1.6; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { color: var(--state); }
a:hover { color: var(--navy); }
code { font-family: 'JetBrains Mono', ui-monospace, monospace; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 40px; }

.chroma { height: 10px; background: linear-gradient(to right, var(--c-red) 0 12.5%, var(--d-orange) 12.5% 25%, var(--e-yellow) 25% 37.5%, var(--f-green) 37.5% 50%, var(--g-teal) 50% 62.5%, var(--a-purple) 62.5% 75%, var(--b-pink) 75% 87.5%, var(--c-red) 87.5% 100%); }
.top { background: var(--paper-light); border-bottom: 1px solid var(--rule); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 58px; flex-wrap: wrap; }
.brand { font-family: 'Fraunces', serif; font-weight: 600; font-size: 20px; color: var(--ink); text-decoration: none; }
.top-nav { display: flex; gap: 22px; flex-wrap: wrap; }
.top-nav a { color: var(--ink-soft); text-decoration: none; font-size: 14px; font-weight: 500; }
.top-nav a:hover { color: var(--ink); }

.crumbs { font-size: 13px; color: var(--ink-faded); padding: 22px 0 0; }
.crumbs a { color: var(--ink-faded); text-decoration: none; }
.crumbs a:hover { color: var(--ink); text-decoration: underline; }
.crumbs span { margin: 0 4px; }
.crumbs [aria-current] { margin: 0; color: var(--ink-soft); }

.hero { padding: 26px 0 30px; max-width: 820px; }
.eyebrow { font-family: 'JetBrains Mono', monospace; font-size: 11.5px; letter-spacing: 1.2px; text-transform: uppercase; color: var(--gold); margin-bottom: 10px; }
h1 { font-family: 'Fraunces', serif; font-weight: 500; font-size: clamp(30px, 4.4vw, 46px); line-height: 1.1; letter-spacing: -0.5px; margin-bottom: 14px; }
h2 { font-family: 'Fraunces', serif; font-weight: 500; font-size: 27px; line-height: 1.2; margin-bottom: 10px; }
h3 { font-family: 'Fraunces', serif; font-weight: 500; font-size: 19px; }
.lede { font-size: 18.5px; color: var(--ink-soft); max-width: 720px; }
.hero-btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }

.btn { display: inline-flex; align-items: center; justify-content: center; font: 600 14px 'Inter Tight', sans-serif; padding: 12px 20px; border-radius: 10px; border: 1.5px solid var(--navy); background: var(--navy); color: #fff; text-decoration: none; cursor: pointer; transition: filter .15s, background .15s; }
.btn:hover { filter: brightness(1.15); color: #fff; }
.btn.ghost { background: transparent; color: var(--navy); }
.btn.ghost:hover { background: var(--paper-deep); filter: none; color: var(--navy); }
.btn:disabled { opacity: .6; cursor: wait; }

.intro { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 36px; align-items: start; padding-bottom: 28px; border-bottom: 1px solid var(--rule); }
.about p { margin-bottom: 14px; color: var(--ink-soft); }
.about strong { color: var(--ink); }
.bigideas { list-style: none; margin: 0 0 14px; display: grid; gap: 6px; }
.bigideas li { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px dashed var(--rule); padding-bottom: 4px; }
.bigideas span { color: var(--ink-faded); font-size: 14px; }
.note { background: var(--gold-tint); border-left: 3px solid var(--gold); border-radius: 0 10px 10px 0; padding: 14px 16px; margin: 6px 0 14px; }
.note p { margin: 4px 0 0; font-size: 15px; color: var(--ink-soft); }
.facts { width: 100%; border-collapse: collapse; background: var(--paper-light); border: 1px solid var(--rule); border-radius: 14px; overflow: hidden; font-size: 14px; }
.facts th, .facts td { text-align: left; vertical-align: top; padding: 10px 14px; border-bottom: 1px solid var(--rule-soft); }
.facts tr:last-child th, .facts tr:last-child td { border-bottom: 0; }
.facts th { width: 38%; font-weight: 500; color: var(--ink-faded); }
.facts code { font-size: 12.5px; background: var(--state-tint); color: var(--state); padding: 2px 6px; border-radius: 5px; }

.jump { display: flex; flex-wrap: wrap; gap: 8px; padding: 22px 0; position: sticky; top: 0; background: var(--paper); z-index: 5; border-bottom: 1px solid var(--rule-soft); }
.jump a { font-size: 13.5px; font-weight: 600; text-decoration: none; color: var(--navy); background: var(--paper-light); border: 1px solid var(--rule); border-radius: 999px; padding: 6px 13px; }
.jump a:hover { border-color: var(--navy); }

.band { padding: 34px 0 10px; scroll-margin-top: 80px; }
.band-sub { color: var(--ink-faded); font-size: 14.5px; margin-bottom: 14px; }
.band-more { font-weight: 600; }
.strand { margin: 22px 0 8px; font-size: 18px; display: flex; align-items: baseline; gap: 8px; }
.strand span { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--ink-faded); }
.stds { list-style: none; display: grid; gap: 8px; }
.std { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 16px; background: var(--paper-light); border: 1px solid var(--rule-soft); border-radius: 12px; padding: 14px 16px; }
.code { font-size: 12.5px; color: var(--state); font-weight: 500; word-break: break-word; padding-top: 2px; }
.txt { color: var(--ink); }
.chip { display: inline-block; margin-top: 8px; font-size: 11.5px; font-weight: 600; color: var(--g-teal); background: #d4ecec; border-radius: 999px; padding: 2px 10px; }
.taught { margin-top: 8px; font-size: 13.5px; color: var(--ink-soft); }
.taught-k { font-weight: 600; color: var(--ink); }

.pager { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 18px 0; font-weight: 600; font-size: 14.5px; }
.pager a { text-decoration: none; }

.cta { margin: 44px 0 0; background: var(--navy); color: #fff; border-radius: 18px; padding: 30px 32px; display: flex; gap: 24px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.cta .eyebrow { color: var(--e-yellow); }
.cta h2 { color: #fff; }
.cta p { color: #d9dbe4; max-width: 620px; }
.cta .btn { background: var(--e-yellow); color: var(--navy); border-color: var(--e-yellow); }

.trial { margin: 28px 0 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 420px); gap: 36px; background: var(--paper-light); border: 1px solid var(--rule); border-radius: 18px; padding: 32px; scroll-margin-top: 20px; }
.trial-copy p { color: var(--ink-soft); margin-bottom: 14px; }
.trial-copy strong { color: var(--ink); }
.ticks { list-style: none; display: grid; gap: 8px; }
.ticks li { padding-left: 26px; position: relative; }
.ticks li::before { content: ''; position: absolute; left: 0; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--f-green); box-shadow: inset 0 0 0 4px var(--paper-light); }
.trial-form, .gate-card { display: grid; gap: 12px; }
.trial-form h3 { margin-bottom: 2px; }
.trial-form label, .gate-card label { display: grid; gap: 4px; font-size: 12.5px; font-weight: 600; color: var(--ink-soft); }
.trial-form input, .trial-form select, .gate-card input, .gate-card select { font: 15px 'Inter Tight', sans-serif; padding: 10px 12px; border: 1px solid var(--rule); border-radius: 9px; background: #fff; color: var(--ink); width: 100%; }
.trial-form input:focus, .trial-form select:focus, .gate-card input:focus, .gate-card select:focus { outline: 2px solid var(--state); outline-offset: 1px; }
.trial-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.trial-form .btn { width: 100%; margin-top: 4px; }
.err { color: var(--c-red); font-size: 13.5px; min-height: 1px; }
.err:empty { display: none; }
.fine { font-size: 12.5px; color: var(--ink-faded); }
.trial-ok { grid-column: 2; align-self: center; text-align: center; }
.trial-ok h3 { margin-bottom: 6px; }
.trial-ok p { color: var(--ink-soft); font-size: 14.5px; }

.faqs { padding: 44px 0 6px; max-width: 820px; }
.faq { border-bottom: 1px solid var(--rule); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 16.5px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: '+'; color: var(--ink-faded); font-weight: 400; }
.faq[open] summary::after { content: '−'; }
.faq summary::-webkit-details-marker { display: none; }
.faq p { margin-top: 8px; color: var(--ink-soft); }

.related { padding: 36px 0 50px; }
.rel { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.rel a { text-decoration: none; font-size: 14px; font-weight: 500; color: var(--ink); background: var(--paper-light); border: 1px solid var(--rule); border-radius: 9px; padding: 7px 12px; }
.rel a:hover { border-color: var(--ink-faded); }

.hub-note { color: var(--ink-soft); margin-bottom: 22px; max-width: 760px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; }
.card { display: grid; gap: 2px; text-decoration: none; color: var(--ink); background: var(--paper-light); border: 1px solid var(--rule); border-radius: 12px; padding: 14px 16px; transition: border-color .15s, transform .15s; }
.card:hover { border-color: var(--navy); color: var(--ink); transform: translateY(-1px); }
.card strong { font-family: 'Fraunces', serif; font-weight: 500; font-size: 18px; }
.card span { font-size: 12.5px; color: var(--ink-faded); }

.foot { border-top: 1px solid var(--rule); padding: 26px 0 40px; font-size: 13px; color: var(--ink-faded); }
.foot p { margin-bottom: 6px; max-width: 820px; }
.foot a { color: var(--ink-soft); }

.gate { position: fixed; inset: 0; background: rgba(27, 35, 62, .55); display: grid; place-items: center; padding: 16px; z-index: 100; }
.gate[hidden] { display: none; }
.gate-card { position: relative; background: var(--paper-light); border-radius: 16px; padding: 28px; width: min(420px, 100%); box-shadow: 0 24px 60px rgba(0, 0, 0, .25); }
.gate-card p { color: var(--ink-soft); font-size: 14.5px; }
.gate-x { position: absolute; top: 10px; right: 12px; border: 0; background: none; font-size: 26px; line-height: 1; color: var(--ink-faded); cursor: pointer; padding: 4px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

@media (max-width: 860px) {
  .wrap { padding: 0 16px; }
  .intro, .trial { grid-template-columns: 1fr; gap: 22px; }
  .trial { padding: 22px 18px; }
  .trial-ok { grid-column: 1; }
  .std { grid-template-columns: 1fr; gap: 4px; }
  .top-nav { gap: 14px; }
  .cta { padding: 24px 20px; }
  .jump { position: static; }
}
@media (max-width: 480px) {
  .top-in { padding-top: 8px; padding-bottom: 8px; gap: 4px; }
  .top-nav { gap: 12px; }
  .top-nav a { font-size: 13px; }
  .trial-form .row { grid-template-columns: 1fr; }
  .lede { font-size: 17px; }
}
@media print {
  .top, .chroma, .jump, .cta, .trial, .related, .hero-btns, .gate { display: none !important; }
  .std { break-inside: avoid; border: 0; padding: 6px 0; }
}