@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;600&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

:root {
  --bg:          #f4f3ef;
  --surface:     #ffffff;
  --border:      #d8d4c8;
  --border-2:    #c4bfb0;
  --text:        #1a1917;
  --text-2:      #5a5750;
  --text-3:      #8a8580;
  --accent:      #1a3a6b;
  --accent-2:    #2d5fa8;
  --met:         #1a5c2e;
  --met-bg:      #eaf5ed;
  --not-met:     #7a2020;
  --not-met-bg:  #fdf0f0;
  --dx-miss:     #4a4540;
  --mono:        'IBM Plex Mono', monospace;
  --sans:        'IBM Plex Sans', sans-serif;
  --radius:      4px;
  --shadow:      0 1px 4px rgba(0,0,0,0.08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 52px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}
.brand { display: flex; align-items: baseline; font-family: var(--mono); color: #fff; }
.brand-ichd { font-size: 1.3rem; font-weight: 600; }
.brand-3    { font-size: 1.3rem; font-weight: 600; color: #7ec8e3; }
.brand-od   { font-size: 1.3rem; font-weight: 600; }
.brand-sub  { font-size: 0.72rem; color: rgba(255,255,255,0.55); margin-left: 14px;
              font-family: var(--sans); font-weight: 300; letter-spacing: 0.04em; display: none; }
@media (min-width: 700px) { .brand-sub { display: block; } }

.layout {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 52px;
  min-height: calc(100vh - 52px);
}
@media (min-width: 860px) { .layout { grid-template-columns: 400px 1fr; align-items: start; } }

.panel { padding: 24px 20px; overflow-y: auto; height: calc(100vh - 52px); position: sticky; top: 52px; }
.panel-form    { background: var(--surface); border-right: 1px solid var(--border); }
.panel-results { background: var(--bg); }

.form-section { margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.form-section:last-of-type { border-bottom: none; }

.section-title {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-2); margin-bottom: 12px;
}

fieldset { border: none; margin-bottom: 14px; }
legend { font-size: 0.8rem; font-weight: 600; color: var(--text-2); margin-bottom: 6px; display: block; }

.radio-label, .check-label {
  display: flex; align-items: flex-start; gap: 8px; padding: 5px 6px;
  border-radius: var(--radius); cursor: pointer; transition: background 0.12s;
  font-size: 0.85rem; color: var(--text); line-height: 1.4;
}
.radio-label:hover, .check-label:hover { background: #f0eee8; }
.radio-label input, .check-label input { margin-top: 2px; flex-shrink: 0; accent-color: var(--accent); }

.btn-check {
  display: inline-flex; align-items: center; gap: 6px;
  background: #7ec8e3; color: var(--accent); border: none;
  border-radius: var(--radius); padding: 8px 18px;
  font-family: var(--mono); font-size: 0.85rem; font-weight: 600;
  cursor: pointer; transition: background 0.15s, transform 0.1s; letter-spacing: 0.03em;
}
.btn-check:hover  { background: #a8dced; transform: translateY(-1px); }
.btn-check:active { transform: translateY(0); }
.btn-icon { font-size: 1rem; line-height: 1; }

.btn-check--full { background: var(--accent); color: #fff; padding: 10px 24px; font-size: 0.9rem; }
.btn-check--full:hover { background: var(--accent-2); }

.btn-reset {
  background: none; border: 1px solid var(--border-2); color: var(--text-2);
  border-radius: var(--radius); padding: 9px 18px;
  font-family: var(--sans); font-size: 0.85rem; cursor: pointer; transition: border-color 0.15s;
}
.btn-reset:hover { border-color: var(--text-2); color: var(--text); }
.form-footer { display: flex; gap: 10px; align-items: center; padding-top: 8px; }

.results-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 400px; color: var(--text-3); text-align: center; gap: 10px;
}
.empty-icon { font-size: 3rem; color: var(--border-2); font-family: var(--mono); line-height: 1; margin-bottom: 8px; }
.empty-sub  { font-size: 0.8rem; color: var(--text-3); margin-top: 4px; }
.results-content { display: flex; flex-direction: column; gap: 20px; }

.dx-card { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; box-shadow: var(--shadow); overflow: hidden; }
.dx-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; cursor: pointer; user-select: none; transition: background 0.12s;
}
.dx-header:hover { background: #faf9f6; }
.dx-name  { font-family: var(--mono); font-size: 0.9rem; font-weight: 600; }
.dx-badge { font-family: var(--mono); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em; padding: 3px 10px; border-radius: 20px; }
.dx-toggle { font-size: 0.7rem; color: var(--text-3); margin-left: 8px; }

.dx-card--met     .dx-header { border-left: 4px solid var(--met); }
.dx-card--met     .dx-name   { color: var(--met); }
.dx-card--met     .dx-badge  { background: var(--met-bg); color: var(--met); }
.dx-card--not-met .dx-header { border-left: 4px solid var(--border-2); }
.dx-card--not-met .dx-name   { color: var(--dx-miss); }
.dx-card--not-met .dx-badge  { background: #f0ede6; color: var(--text-2); }

.dx-body { padding: 0 18px 16px 22px; border-top: 1px solid var(--border); }
.criteria-list { list-style: none; margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.criterion { display: flex; gap: 10px; align-items: flex-start; padding: 8px 10px; border-radius: var(--radius); font-size: 0.82rem; line-height: 1.45; }
.criterion--met      { background: var(--met-bg);     color: var(--met);     border-left: 3px solid var(--met); }
.criterion--not-met  { background: var(--not-met-bg); color: var(--not-met); border-left: 3px solid var(--not-met); }
.criterion--excluded { background: #fdf6e3;           color: #7a5c00;        border-left: 3px solid #c8960a; }

.crit-label { font-family: var(--mono); font-weight: 600; font-size: 0.75rem; min-width: 28px; margin-top: 1px; }
.crit-text  { flex: 1; }

.symptom-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.symptom-tag  { font-family: var(--mono); font-size: 0.7rem; background: #eae7e0; color: var(--text-2); padding: 2px 8px; border-radius: 20px; }

.ichd-link { display: inline-block; margin-top: 10px; font-size: 0.75rem; color: var(--accent-2); text-decoration: none; font-family: var(--mono); }
.ichd-link:hover { text-decoration: underline; }

.prolog-status { font-family: var(--mono); font-size: 0.7rem; color: var(--text-3); padding: 0 0 16px 2px; }
.prolog-status .ok  { color: var(--met); }
.prolog-status .err { color: var(--not-met); }

.loading-spinner { text-align: center; padding: 40px; font-family: var(--mono); font-size: 0.85rem; color: var(--text-3); animation: pulse 1.2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

/* Clinical summary card */
.summary-card {
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.summary-title {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #7ec8e3;
  margin-bottom: 10px;
}
.summary-text {
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.92);
}
.summary-text strong {
  color: #fff;
  font-weight: 600;
}

/* Disclaimer footer */
.disclaimer {
  background: #1a1917;
  padding: 12px 24px;
}
.disclaimer-line1 {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  display: inline;
}
.disclaimer-line1 strong {
  color: rgba(255,255,255,0.8);
}
.disclaimer-line2 {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  display: inline;
  margin-left: 6px;
}
.disclaimer-line2 a {
  color: #7ec8e3;
  text-decoration: none;
}
.disclaimer-line2 a:hover { text-decoration: underline; }