:root {
  --ink: #132125;
  --muted: #5d6a6d;
  --paper: #f4f0e8;
  --card: #fffdf8;
  --line: #d4d0c5;
  --green: #036a5a;
  --green-dark: #01483e;
  --lime: #c8df72;
  --orange: #f27b4a;
  --blue: #96c7d3;
  --shadow: 0 18px 40px rgba(19, 33, 37, .08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: radial-gradient(circle at 93% 7%, rgba(200, 223, 114, .45), transparent 19rem), var(--paper);
  font-family: Georgia, "Times New Roman", serif;
}

button, select { font: inherit; }

.app-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 48px 0 36px; }

.masthead { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; padding-bottom: 40px; border-bottom: 1px solid var(--ink); }
.eyebrow, .section-index, .source-stamp, .method-badge { margin: 0; font-family: Arial, sans-serif; font-size: .7rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { color: var(--green); margin-bottom: 12px; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(3.2rem, 7vw, 6.5rem); line-height: .78; font-weight: 400; letter-spacing: -.07em; }
h1 span { color: var(--green); }
.source-stamp { max-width: 220px; line-height: 1.5; text-align: right; color: var(--muted); }

.intro { display: grid; grid-template-columns: 160px minmax(0, 640px); gap: 28px; padding: 54px 0 30px; }
.section-index { color: var(--green); }
.intro h2, .results h2 { margin-bottom: 10px; font-size: clamp(1.8rem, 3.5vw, 2.7rem); line-height: 1; font-weight: 400; letter-spacing: -.04em; }
.intro p:not(.section-index) { margin-bottom: 0; color: var(--muted); font-size: 1.1rem; line-height: 1.45; }

.workbench { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); gap: 22px; }
.evidence-panel, .network-panel, .results, .model-note { background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); }
.evidence-panel { padding: 26px; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 19px; }
.field { display: grid; gap: 8px; }
.field label { font-family: Arial, sans-serif; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.field select { width: 100%; appearance: none; padding: 12px 36px 12px 12px; color: var(--ink); border: 1px solid var(--ink); border-radius: 0; background: var(--card) linear-gradient(45deg, transparent 50%, var(--green) 50%) calc(100% - 16px) 50% / 7px 7px no-repeat, linear-gradient(135deg, var(--green) 50%, transparent 50%) calc(100% - 10px) 50% / 7px 7px no-repeat; }
.field select:focus { outline: 3px solid var(--lime); outline-offset: 2px; }
.form-actions { display: flex; justify-content: space-between; gap: 18px; align-items: center; margin-top: 28px; padding-top: 19px; border-top: 1px solid var(--line); }
.reset-button { padding: 0; border: 0; color: var(--green); background: transparent; text-decoration: underline; cursor: pointer; }
.reset-button:hover { color: var(--orange); }
#evidence-status { margin: 0; color: var(--muted); font-size: .86rem; line-height: 1.35; text-align: right; }

.network-panel { padding: 25px; background: var(--green-dark); color: #f9f7ef; }
.network-panel .section-index { color: var(--lime); }
.network { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 34px 0 22px; }
.network-node { min-width: 72px; padding: 10px 8px; border: 1px solid rgba(255,255,255,.5); text-align: center; font-family: Arial, sans-serif; font-size: .74rem; font-weight: 700; transition: .2s ease; }
.network-node.active { color: var(--ink); border-color: var(--lime); background: var(--lime); }
.network-node.target { border-color: var(--orange); background: var(--orange); color: var(--ink); }
.network-arrow { color: var(--lime); font-family: Arial, sans-serif; font-weight: 700; }
.network-note { margin: 0; color: rgba(255,255,255,.72); font-size: .88rem; line-height: 1.4; }

.results { margin-top: 22px; padding: 30px; }
.results-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 18px; }
.method-badge { padding: 8px 10px; color: var(--green); background: #e5eee1; white-space: nowrap; }
.summary-grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 12px; margin: 28px 0 32px; }
.summary-card { min-height: 136px; padding: 17px; background: #e9e6de; }
.summary-card.primary-card { background: var(--lime); }
.summary-card p, .summary-card span { margin-bottom: 0; font-family: Arial, sans-serif; font-size: .75rem; letter-spacing: .04em; }
.summary-card p { text-transform: uppercase; }
.summary-card strong { display: block; margin: 16px 0 8px; font-size: clamp(1.05rem, 2vw, 1.45rem); line-height: 1.05; font-weight: 400; }
.distribution { display: grid; gap: 16px; }
.distribution-row { display: grid; grid-template-columns: minmax(145px, 220px) 1fr 62px; gap: 14px; align-items: center; }
.income-label, .income-value { font-family: Arial, sans-serif; font-size: .84rem; }
.income-value { text-align: right; font-weight: 700; }
.bar-track { height: 18px; overflow: hidden; background: #e7e4dc; }
.bar-fill { height: 100%; min-width: 2px; background: var(--green); transition: width .28s ease; }
.distribution-row.max .bar-fill { background: var(--orange); }

.model-note { margin-top: 22px; padding: 18px 22px; border-left: 5px solid var(--blue); color: var(--muted); font-size: .93rem; line-height: 1.45; }
.model-note strong { color: var(--ink); }

@media (max-width: 760px) {
  .app-shell { width: min(100% - 26px, 1180px); padding-top: 28px; }
  .masthead, .results-heading { display: block; }
  .source-stamp { margin-top: 22px; text-align: left; }
  .intro { grid-template-columns: 1fr; gap: 13px; padding-top: 34px; }
  .workbench { grid-template-columns: 1fr; }
  .field-grid, .summary-grid { grid-template-columns: 1fr; }
  .form-actions { display: grid; }
  #evidence-status { text-align: left; }
  .network { gap: 7px; margin: 24px 0; }
  .network-node { min-width: 62px; font-size: .67rem; }
  .distribution-row { grid-template-columns: 115px 1fr 48px; gap: 8px; }
  .income-label, .income-value { font-size: .72rem; }
}