:root {
  --ink: #17324d;
  --muted: #526579;
  --blue: #1f4e79;
  --blue-dark: #153b5f;
  --blue-soft: #eaf3fb;
  --teal: #087f8c;
  --gold: #d99a19;
  --paper: #ffffff;
  --wash: #f5f8fb;
  --line: #cbd7e2;
  --danger: #8b2f2f;
  --shadow: 0 12px 30px rgba(23,50,77,.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}
a { color: var(--blue); }
a:hover { color: var(--blue-dark); }
button, input, select, textarea { font: inherit; }
button, .button { touch-action: manipulation; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }
.skip-link { position: absolute; left: -9999px; top: 1rem; z-index: 10; background: var(--paper); padding: .7rem 1rem; }
.skip-link:focus { left: 1rem; }

.site-header { position: sticky; top: 0; z-index: 5; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); }
.header-inner { max-width: 1200px; margin: auto; padding: .8rem 1.25rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .65rem; color: var(--ink); font-weight: 700; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: .55rem; color: white; background: var(--blue); }
nav { display: flex; flex-wrap: wrap; gap: .9rem; }
nav a { color: var(--ink); text-decoration: none; font-weight: 700; }

.hero { max-width: 1200px; margin: auto; padding: 4.5rem 1.25rem 3.5rem; display: grid; grid-template-columns: 1.7fr 1fr; gap: 2.5rem; align-items: center; }
h1, h2, h3, h4 { line-height: 1.2; margin-top: 0; }
h1 { font-size: clamp(2.2rem, 5vw, 4.6rem); letter-spacing: -.04em; max-width: 950px; margin-bottom: 1.2rem; }
h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); margin-bottom: .5rem; }
h3 { font-size: 1.35rem; }
.lede { font-size: 1.18rem; max-width: 800px; color: var(--muted); }
.eyebrow { margin: 0 0 .5rem; color: var(--teal); font-size: .82rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.5rem; }
.principle { border-left: 7px solid var(--gold); border-radius: .75rem; background: var(--blue-soft); padding: 1.6rem; box-shadow: var(--shadow); }
.principle p { font-size: 1.25rem; font-weight: 700; margin: .3rem 0 0; }
.principle-label { color: var(--blue); font-weight: 800; text-transform: uppercase; font-size: .78rem; letter-spacing: .08em; }

.button { display: inline-flex; justify-content: center; align-items: center; border: 2px solid transparent; border-radius: .55rem; padding: .7rem 1rem; font-weight: 800; text-decoration: none; cursor: pointer; }
.button.primary { background: var(--blue); color: white; }
.button.primary:hover { background: var(--blue-dark); color: white; }
.button.secondary { background: white; color: var(--blue); border-color: var(--blue); }
.button.secondary:hover { background: var(--blue-soft); }
.button.compact { padding: .45rem .7rem; font-size: .92rem; }
.button:disabled { opacity: .55; cursor: not-allowed; }

.section { padding: 4rem max(1.25rem, calc((100vw - 1200px)/2)); }
.section.alternate { background: var(--wash); border-block: 1px solid var(--line); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 2rem; }
.section-heading > p { max-width: 520px; color: var(--muted); }
.workshop-steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: .8rem; counter-reset: none; }
.workshop-steps li { display: flex; gap: .75rem; align-items: start; border: 1px solid var(--line); border-radius: .7rem; background: var(--paper); padding: 1rem; }
.workshop-steps li > span { flex: 0 0 2rem; display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: var(--blue); color: white; font-weight: 800; }
.workshop-steps strong, .workshop-steps small { display: block; }
.workshop-steps small { margin-top: .2rem; color: var(--muted); }
.path-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.25rem; }
.toolkit-directory { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1rem; }
.toolkit-directory a { display: block; border: 1px solid var(--line); border-radius: .75rem; padding: 1.2rem; color: var(--ink); background: var(--paper); text-decoration: none; }
.toolkit-directory a:hover { border-color: var(--blue); background: var(--blue-soft); box-shadow: var(--shadow); }
.toolkit-directory strong, .toolkit-directory span { display: block; }
.toolkit-directory span { margin-top: .3rem; color: var(--muted); }

.explorer-layout { display: grid; grid-template-columns: 240px 1fr; gap: 1.5rem; align-items: start; }
.filter-panel { position: sticky; top: 5rem; border: 1px solid var(--line); border-radius: .75rem; background: var(--paper); padding: 1rem; display: grid; gap: .55rem; }
.filter-panel label, .field label { font-weight: 800; }
input, select, textarea { width: 100%; border: 1px solid #8798a8; border-radius: .45rem; background: white; color: var(--ink); padding: .7rem; }
textarea { resize: vertical; }
.result-count { color: var(--muted); font-size: .9rem; margin: .35rem 0 0; }
.type-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: .75rem; }
.type-card { min-height: 125px; border: 1px solid var(--line); border-radius: .7rem; background: white; color: var(--ink); padding: 1rem; text-align: left; cursor: pointer; }
.type-card:hover { border-color: var(--blue); box-shadow: 0 6px 16px rgba(23,50,77,.10); }
.type-card[aria-pressed="true"] { border: 3px solid var(--blue); background: var(--blue-soft); padding: calc(1rem - 2px); }
.type-card strong { display: block; font-size: 1.05rem; }
.type-card span { display: block; margin-top: .35rem; color: var(--muted); font-size: .9rem; }
.type-card .grade-tag { display: inline-block; margin-top: .65rem; border-radius: 999px; padding: .15rem .5rem; background: var(--wash); color: var(--blue); font-size: .75rem; font-weight: 800; }
.detail-panel { margin-top: 1.25rem; border-top: 6px solid var(--blue); border-radius: .75rem; background: white; box-shadow: var(--shadow); padding: clamp(1.2rem, 3vw, 2rem); }
.detail-top { display: flex; justify-content: space-between; gap: 1rem; align-items: start; }
.detail-summary { color: var(--muted); font-size: 1.08rem; }
.detail-columns { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1.5rem; margin-top: 1.5rem; }
.detail-columns section { border-top: 1px solid var(--line); padding-top: 1rem; }
.detail-columns ul, .detail-columns ol { padding-left: 1.25rem; }
.callout { border-left: 5px solid var(--teal); background: #eef9fa; padding: .85rem 1rem; }
.warning { border-left-color: var(--gold); background: #fff8e7; }
.level-list { list-style: none; padding: 0 !important; counter-reset: level; }
.level-list li { counter-increment: level; display: grid; grid-template-columns: 2rem 1fr; gap: .6rem; margin-bottom: .7rem; }
.level-list li::before { content: counter(level); display: grid; place-items: center; width: 1.8rem; height: 1.8rem; background: var(--blue); color: white; border-radius: 50%; font-weight: 800; }
.example-box { background: var(--wash); border: 1px solid var(--line); border-radius: .55rem; padding: 1rem; white-space: pre-wrap; }
.output-heading { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }

.matcher-form, .remix-form, .prompt-form { display: grid; gap: 1rem; }
.matcher-form { border: 1px solid var(--line); border-radius: .8rem; background: white; padding: 1.4rem; }
fieldset { border: 1px solid var(--line); border-radius: .5rem; padding: .8rem 1rem; }
legend { font-weight: 800; padding: 0 .3rem; }
.choice-row { display: flex; flex-wrap: wrap; gap: .7rem 1.5rem; }
.choice-row label { display: inline-flex; gap: .45rem; align-items: center; }
.choice-row input, .check-grid input { width: auto; }
.matcher-results { margin-top: 1.25rem; }
.recommendation-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 1rem; }
.recommendation { border-radius: .7rem; background: white; border: 1px solid var(--line); padding: 1rem; }
.recommendation.best { border: 3px solid var(--teal); }
.recommendation .rank { color: var(--teal); font-size: .78rem; font-weight: 800; text-transform: uppercase; }
.recommendation button { margin-top: .5rem; }

.remix-grid, .ai-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 1.5rem; align-items: start; }
.remix-form, .prompt-form, .output-panel { border: 1px solid var(--line); border-radius: .75rem; padding: 1.3rem; background: white; }
.output-panel { min-height: 100%; }
.empty-state { color: var(--muted); }
.copy-output { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--wash); border: 1px solid var(--line); border-radius: .5rem; padding: 1rem; font-family: Arial, Helvetica, sans-serif; }
.review-note { font-size: .92rem; color: var(--muted); }
.quality-section { background: var(--blue-dark); color: white; }
.quality-section .eyebrow { color: #83dfe7; }
.check-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .8rem; }
.check-grid label { display: flex; align-items: start; gap: .65rem; background: rgba(255,255,255,.1); padding: .9rem; border-radius: .55rem; }
footer { padding: 2rem 1.25rem; text-align: center; color: var(--muted); }
.small { font-size: .85rem; }

@media (max-width: 800px) {
  .site-header { position: static; }
  .header-inner, .section-heading { align-items: start; flex-direction: column; }
  nav { font-size: .9rem; }
  .hero { grid-template-columns: 1fr; padding-top: 2.5rem; }
  .explorer-layout { grid-template-columns: 1fr; }
  .filter-panel { position: static; grid-template-columns: 1fr; }
  .detail-columns, .remix-grid, .ai-grid, .check-grid, .toolkit-directory, .workshop-steps { grid-template-columns: 1fr; }
}

@media print {
  .site-header, .hero-actions, .filter-panel, .button, #matcher-form, #remix-form, #prompt-form { display: none !important; }
  .hero, .section { padding: 1rem 0; }
  .hero { display: block; }
  .detail-panel, .output-panel { box-shadow: none; }
  body { color: #000; }
}