/* HDSS Webapp — Slate & Pearl theme (matches spec doc) */

:root {
  --slate:      #4A5C8A;
  --slate-dk:   #2D3A5C;
  --slate-mid:  #3D4E76;
  --pearl:      #F7F8FC;
  --periwinkle: #7A8CC4;
  --cream:      #EEF1F8;
  --cream2:     #E4E8F5;
  --ink:        #2C3345;
  --soft:       #5A6478;
  --mgrey:      #CDD2E8;
  --green:      #2F855A;
  --green-bg:   #E8F4ED;
  --amber:      #B7791F;
  --amber-bg:   #FFFBEB;
  --red:        #9B2C2C;
  --red-bg:     #FFF4F4;
  --grey:       #6E7491;
  --grey-bg:    #EEF0F6;
}

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

html, body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 15px;
  color: var(--ink);
  background: var(--pearl);
  line-height: 1.55;
  min-height: 100vh;
}

button { font-family: inherit; }

/* ── Top bar ───────────────────────────────────────────────── */
.topbar {
  background: var(--slate);
  color: #fff;
  padding: 14px 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,.10);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 4px solid var(--periwinkle);
  position: sticky; top: 0; z-index: 50;
}
.topbar-brand-eyebrow {
  font-size: 9px; letter-spacing: .2em; color: rgba(200,210,240,.7);
  text-transform: uppercase; font-weight: 600; margin-bottom: 2px;
}
.topbar-brand-title { font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
.topbar-actions { display: flex; gap: 10px; }
.topbar button {
  background: rgba(255,255,255,.10);
  color: #fff;
  border: 1px solid rgba(255,255,255,.18);
  padding: 7px 14px; border-radius: 5px;
  font-size: 12px; font-weight: 600; letter-spacing: .04em;
  text-transform: uppercase; cursor: pointer;
  transition: all .15s;
}
.topbar button:hover { background: rgba(255,255,255,.22); }

/* ── Main container ────────────────────────────────────────── */
main {
  max-width: 940px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* ── Screen wrapper ─────────────────────────────────────────── */
.screen { display: none; animation: fadeIn .25s ease; }
.screen.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Section headings ──────────────────────────────────────── */
.section-banner {
  background: var(--slate);
  color: #fff;
  padding: 22px 28px;
  border-left: 7px solid var(--periwinkle);
  border-radius: 4px;
  margin-bottom: 22px;
}
.section-banner .eyebrow {
  font-size: 9px; letter-spacing: .2em; color: var(--periwinkle);
  text-transform: uppercase; font-weight: 700; margin-bottom: 6px;
}
.section-banner h2 { font-size: 22px; font-weight: 700; line-height: 1.2; }
.section-banner .lede {
  font-size: 13px; color: rgba(255,255,255,.7); margin-top: 8px;
  font-style: italic; line-height: 1.55;
}

/* ── Cover hero (welcome screen) ───────────────────────────── */
.cover-hero {
  background: var(--slate);
  padding: 56px 40px 48px;
  border-radius: 6px;
  border-bottom: 5px solid var(--periwinkle);
  margin-bottom: 28px;
  color: #fff;
}
.cover-hero .eyebrow {
  font-size: 10px; letter-spacing: .22em; color: rgba(200,210,240,.7);
  text-transform: uppercase; font-weight: 600; margin-bottom: 16px;
}
.cover-hero h1 {
  font-size: 40px; line-height: 1.1; margin-bottom: 14px; font-weight: 700; letter-spacing: -.015em;
}
.cover-hero .rule {
  height: 4px; width: 64px; background: var(--periwinkle); margin-bottom: 18px;
}
.cover-hero p {
  font-size: 15px; color: rgba(255,255,255,.7); line-height: 1.7;
  max-width: 640px; font-style: italic;
}

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: #fff;
  border: 1px solid var(--mgrey);
  border-radius: 5px;
  padding: 22px 26px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(45,58,92,.04);
}
.card h3 {
  font-size: 14px; font-weight: 700; color: var(--slate-dk);
  text-transform: uppercase; letter-spacing: .06em;
  padding-bottom: 10px; margin-bottom: 14px;
  border-bottom: 2px solid var(--periwinkle);
}
.card h4 {
  font-size: 12px; font-weight: 700; color: var(--slate);
  text-transform: uppercase; letter-spacing: .07em;
  margin: 16px 0 8px;
}

/* ── Form: questions ───────────────────────────────────────── */
.q-block { margin-bottom: 24px; }
.q-prompt {
  font-size: 15px; font-weight: 600; color: var(--slate-dk);
  margin-bottom: 12px; line-height: 1.4;
}
.q-helper { font-size: 12px; color: var(--soft); margin-bottom: 10px; font-style: italic; }
.q-options { display: flex; flex-direction: column; gap: 8px; }
.q-options.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.q-option {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--mgrey);
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
  font-size: 13.5px; line-height: 1.4;
  transition: all .12s;
}
.q-option:hover { border-color: var(--periwinkle); background: var(--cream); }
.q-option input { margin-top: 3px; accent-color: var(--slate); }
.q-option.selected {
  border-color: var(--slate); background: var(--cream2);
  box-shadow: inset 3px 0 0 var(--slate);
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  border: none; border-radius: 4px; padding: 11px 22px;
  font-size: 13px; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; cursor: pointer;
  transition: all .15s;
}
.btn-primary {
  background: var(--slate); color: #fff;
}
.btn-primary:hover { background: var(--slate-dk); }
.btn-primary:disabled { background: var(--mgrey); color: var(--soft); cursor: not-allowed; }
.btn-secondary {
  background: #fff; color: var(--slate); border: 1px solid var(--slate);
}
.btn-secondary:hover { background: var(--cream); }
.btn-ghost {
  background: transparent; color: var(--slate); border: none;
}
.btn-ghost:hover { color: var(--slate-dk); text-decoration: underline; }

.btn-row {
  display: flex; gap: 10px; justify-content: space-between;
  margin-top: 24px;
}
.btn-row .grow { flex: 1; }

/* ── Progress bar ──────────────────────────────────────────── */
.progress {
  background: var(--cream); border-radius: 99px; height: 8px;
  overflow: hidden; margin-bottom: 26px;
}
.progress-bar {
  background: linear-gradient(90deg, var(--periwinkle), var(--slate));
  height: 100%; width: 0%;
  transition: width .3s ease;
}
.progress-label {
  font-size: 11px; color: var(--soft); letter-spacing: .08em;
  text-transform: uppercase; margin-bottom: 8px; font-weight: 600;
}

/* ── Note boxes ────────────────────────────────────────────── */
.note {
  padding: 14px 18px; border-radius: 4px;
  border-left: 4px solid; margin-bottom: 14px;
  font-size: 13.5px; line-height: 1.6;
}
.note-emergency { background: var(--red-bg); border-color: var(--red); color: #4A1010; }
.note-urgent    { background: var(--amber-bg); border-color: var(--amber); color: #4A3208; }
.note-caution   { background: var(--cream2); border-color: var(--periwinkle); color: var(--slate-dk); }
.note-info      { background: var(--cream2); border-color: var(--slate); color: var(--slate-dk); }
.note strong { font-weight: 700; }
.note .lbl {
  display: block; font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .1em; margin-bottom: 6px;
}

/* ── Result cards ──────────────────────────────────────────── */
.result-card {
  background: #fff;
  border: 1px solid var(--mgrey);
  border-radius: 5px;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(45,58,92,.06);
  transition: all .18s;
}
.result-card:hover { box-shadow: 0 3px 12px rgba(45,58,92,.12); border-color: var(--periwinkle); }
.result-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 20px;
  background: var(--cream); border-bottom: 1px solid var(--mgrey);
  cursor: pointer;
}
.result-name { font-size: 17px; font-weight: 700; color: var(--slate-dk); }
.result-name small { font-size: 13px; color: var(--soft); font-weight: 400; font-style: italic; margin-left: 8px; }
.result-rank {
  background: var(--slate); color: #fff;
  font-size: 11px; font-weight: 700; padding: 3px 9px;
  border-radius: 99px; margin-right: 10px;
}

.score-pill {
  font-size: 11px; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase;
  padding: 5px 12px; border-radius: 99px;
}
.score-pill.strong   { background: var(--green-bg); color: var(--green); border: 1px solid var(--green); }
.score-pill.probable { background: var(--amber-bg); color: var(--amber); border: 1px solid var(--amber); }
.score-pill.possible { background: var(--grey-bg); color: var(--grey); border: 1px solid var(--grey); }

.result-body { padding: 18px 22px; display: none; }
.result-card.expanded .result-body { display: block; }
.result-card.expanded .toggle-arrow { transform: rotate(180deg); }
.toggle-arrow {
  display: inline-block; font-size: 11px; color: var(--soft);
  transition: transform .2s;
  margin-left: 10px;
}

.result-description {
  font-size: 14px; color: var(--ink); line-height: 1.7;
  margin-bottom: 14px;
}
.match-list {
  list-style: none;
  border-top: 1px solid var(--cream2); padding-top: 12px;
}
.match-list li {
  font-size: 12.5px;
  padding: 5px 0;
  border-bottom: 1px solid var(--cream);
  display: flex; justify-content: space-between; align-items: center;
}
.match-list li:last-child { border-bottom: none; }
.match-list .m-type {
  display: inline-block; min-width: 110px;
  font-size: 10px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--periwinkle); font-weight: 700;
}
.match-list .m-item { color: var(--ink); flex: 1; padding: 0 10px; }
.match-list .m-grade {
  font-size: 10px; padding: 2px 7px; border-radius: 3px;
  background: var(--cream2); color: var(--slate-dk); font-weight: 700;
}
.missing-list {
  list-style: none; margin-top: 10px;
  padding: 10px 14px; background: var(--amber-bg);
  border-left: 3px solid var(--amber); border-radius: 3px;
}
.missing-list .missing-label {
  font-size: 10px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--amber); font-weight: 700; margin-bottom: 5px;
}
.missing-list li { font-size: 12px; color: var(--ink); padding: 2px 0; }

/* ── Differential ──────────────────────────────────────────── */
.diff-pair {
  background: #fff; border: 1px solid var(--mgrey);
  border-radius: 5px; padding: 18px 22px; margin-bottom: 14px;
}
.diff-title {
  font-size: 14px; font-weight: 700; color: var(--slate-dk);
  margin-bottom: 12px; padding-bottom: 8px;
  border-bottom: 2px solid var(--periwinkle);
}
.diff-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
  margin-bottom: 10px;
}
.diff-col h5 {
  font-size: 13px; color: var(--slate); font-weight: 700;
  margin-bottom: 6px;
}
.diff-col ul { list-style: none; }
.diff-col li {
  font-size: 12px; padding: 3px 0; color: var(--ink);
}
.diff-col li::before {
  content: "•"; color: var(--periwinkle); font-weight: 700;
  display: inline-block; width: 12px;
}

/* ── Tag / chip ────────────────────────────────────────────── */
.tag {
  display: inline-block; font-size: 11px; padding: 3px 9px;
  background: var(--cream2); color: var(--slate-dk);
  border-radius: 99px; margin: 2px 4px 2px 0;
}

/* ── Disclaimer block ──────────────────────────────────────── */
.disclaimer {
  background: var(--cream);
  border-left: 5px solid var(--slate);
  padding: 18px 22px;
  border-radius: 3px;
  margin-top: 32px;
  font-size: 12px; color: var(--soft); line-height: 1.7;
}
.disclaimer strong {
  display: block; font-size: 10px;
  text-transform: uppercase; letter-spacing: .12em;
  color: var(--slate-dk); margin-bottom: 8px;
  font-weight: 700;
}

/* ── Saved-cases drawer ────────────────────────────────────── */
.cases-list { list-style: none; }
.cases-list li {
  background: #fff; border: 1px solid var(--mgrey); border-radius: 4px;
  padding: 10px 14px; margin-bottom: 8px;
  display: flex; justify-content: space-between; align-items: center;
}
.case-meta { font-size: 12px; color: var(--soft); }
.case-meta strong { color: var(--slate-dk); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 700px) {
  main { padding: 20px 14px 60px; }
  .cover-hero { padding: 36px 22px 32px; }
  .cover-hero h1 { font-size: 26px; }
  .section-banner { padding: 18px 18px; }
  .section-banner h2 { font-size: 18px; }
  .card { padding: 16px 18px; }
  .q-options.grid-2 { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .topbar { padding: 12px 16px; }
  .topbar-brand-title { font-size: 15px; }
  .btn-row { flex-direction: column-reverse; }
  .btn { width: 100%; }
}