/* Layout and components for the prototype. Colors come from assets/tokens.css (OCL Design System). */

:root {
  --text: #1c1b1f;
  --text-muted: var(--surface-contrast);
  --border: var(--surface-nv80);
  --radius: 8px;
  --gutter: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--surface-main);
  color: var(--text);
  font: 15px/1.5 Roboto, system-ui, -apple-system, "Segoe UI", sans-serif;
}

a { color: var(--primary-40); }
a:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--primary-40);
  outline-offset: 2px;
}

h1, h2, h3 { font-weight: 500; line-height: 1.25; margin: 0; }
h1 { font-size: 22px; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }

.eyebrow { margin: 0 0 2px; font-size: 12px; letter-spacing: .04em; text-transform: uppercase; color: var(--text-muted); }

.site-header { background: #fff; border-bottom: 1px solid var(--border); }
.site-header__inner, .page, .controls__bar, .controls__rules, .site-footer {
  max-width: 1200px; margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter);
}
.site-header__inner { display: flex; flex-wrap: wrap; gap: 8px 24px; align-items: end; justify-content: space-between; padding-top: 16px; padding-bottom: 12px; }
.site-links { display: flex; gap: 16px; font-size: 14px; }

.controls { position: sticky; top: 0; z-index: 10; background: var(--surface-n96); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.controls__bar { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; padding-top: 8px; padding-bottom: 8px; }
.controls__rules { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 6px 12px; padding-bottom: 10px; }
.controls__rules .field { font-size: 11px; line-height: 1.3; }
.controls__rules .field select { font-size: 13px; padding: 3px 6px; }
.controls__rules[hidden] { display: none; }

.field { display: flex; flex-direction: column; gap: 2px; font-size: 12px; color: var(--text-muted); min-width: 0; }
.field--inline { flex-direction: row; align-items: center; gap: 8px; font-size: 14px; }
.field select, .field input[type="text"], .field input[type="password"] {
  font: inherit; font-size: 14px; color: var(--text); background: #fff;
  border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; max-width: 100%;
}
.field--changed select { border-color: var(--primary-40); background: var(--primary-95); }
.field .rule-number { color: var(--primary-40); font-weight: 500; }

.button { font: inherit; font-size: 14px; border-radius: 20px; padding: 6px 16px; cursor: pointer; border: 1px solid var(--primary-40); background: var(--primary-40); color: #fff; }
.button[disabled] { opacity: .5; cursor: default; }
.button--text { background: transparent; color: var(--primary-40); border-color: transparent; padding: 6px 8px; }

.page { padding-top: 16px; padding-bottom: 48px; }

.tabs { display: flex; gap: 4px; overflow-x: auto; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tabs a { flex: none; padding: 8px 14px; text-decoration: none; color: var(--text-muted); border-bottom: 2px solid transparent; font-weight: 500; font-size: 14px; }
.tabs a[aria-current="page"] { color: var(--primary-40); border-bottom-color: var(--primary-40); }

.scenario-head { margin-bottom: 16px; }
.scenario-head p { margin: 4px 0 0; color: var(--text-muted); max-width: 70ch; }

.results { display: grid; gap: 16px; grid-template-columns: 1fr; }
.results--compare { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 760px) { .results--compare { grid-template-columns: 1fr; } }

.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; min-width: 0; }
.card h3 { margin-bottom: 8px; }
.card__meta { display: grid; gap: 6px; font-size: 14px; margin-bottom: 12px; }
.card__meta dt { color: var(--text-muted); font-size: 12px; }
.card__meta dd { margin: 0; }
.counts { font-size: 13px; color: var(--text-muted); margin: 0 0 8px; }

.message { border-radius: 6px; padding: 6px 10px; background: var(--surface-n94); }
.message--block { background: var(--error-95); color: var(--error-main); }
.message--inform, .message--offer { background: var(--primary-95); }

.tree, .tree ul { list-style: none; margin: 0; padding: 0; }
.tree ul { margin-left: 10px; padding-left: 12px; border-left: 1px solid var(--surface-n90); }
.row { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 6px; padding: 3px 0; font-size: 14px; }
.inline-concept { display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: 2px 6px; }
.row .name, .inline-concept .name { font-weight: 500; }
.row .class, .inline-concept .class { font-size: 12px; color: var(--text-muted); }
.row .code { font-variant-numeric: tabular-nums; }
.edge { font-size: 11px; color: var(--text-muted); min-width: 46px; }

.chip { display: inline-block; font-size: 11px; font-weight: 700; border-radius: 4px; padding: 0 5px; letter-spacing: .02em; }
.chip--PIH { background: var(--primary-90); color: var(--primary-20); }
.chip--CIEL { background: var(--tertiary-90); color: var(--tertiary-20); }
.chip--other { background: var(--surface-n90); color: var(--text-muted); }

.badge { font-size: 12px; border-radius: 10px; padding: 0 8px; background: var(--surface-n94); color: var(--text-muted); white-space: nowrap; }
.badge--replaced { background: var(--primary-95); color: var(--primary-30); }
.badge--repointed { background: var(--secondary-95); color: var(--secondary-30); }
.badge--missing { background: var(--error-95); color: var(--error-main); }
.badge--only { background: #fff3c4; color: #5c4400; }
.badge--tie { background: var(--tertiary-95); color: var(--tertiary-30); }

.node--omitted > .row { color: var(--text-muted); text-decoration: line-through; }
.node--omitted > .row .badge { text-decoration: none; }
.node--repeat > .row { opacity: .7; }
.node--only > .row { background: #fffbe6; border-radius: 4px; }

details.trace { margin-top: 12px; font-size: 13px; }
details.trace summary { cursor: pointer; color: var(--primary-40); }
details.trace ol { margin: 8px 0 0; padding-left: 20px; }

.live-form { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); align-items: end; margin-bottom: 16px; }
.live-form .actions { display: flex; gap: 12px; align-items: center; }
.check { display: flex; gap: 6px; align-items: center; font-size: 14px; }
.notice { font-size: 14px; color: var(--text-muted); margin: 0 0 12px; max-width: 75ch; }
.notice--error { color: var(--error-main); }

.site-footer { color: var(--text-muted); font-size: 13px; padding-top: 16px; padding-bottom: 32px; }

@media (max-width: 600px) {
  .controls__rules { grid-template-columns: 1fr; max-height: 55vh; overflow-y: auto; }
  .field--inline { flex: 1 1 100%; justify-content: space-between; }
  .field--inline select { flex: 1; }
}