:root {
  --bg: #f6f8fc;
  --card: #ffffff;
  --soft: #f8fafc;
  --border: #dbe3ef;
  --border-strong: #cbd5e1;
  --text: #0f172a;
  --muted: #64748b;
  --muted-2: #475569;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent-red: #e64b35;
  --accent-blue: #4dbbd5;
  --high: #991b1b;
  --high-bg: #fee2e2;
  --high-border: #fecaca;
  --borderline: #92400e;
  --borderline-bg: #fef3c7;
  --borderline-border: #fde68a;
  --low: #166534;
  --low-bg: #dcfce7;
  --low-border: #bbf7d0;
  --shadow: 0 16px 42px rgba(15, 23, 42, 0.07);
  --shadow-soft: 0 10px 28px rgba(15, 23, 42, 0.05);
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(77, 187, 213, 0.16), transparent 34rem),
    radial-gradient(circle at top right, rgba(230, 75, 53, 0.12), transparent 30rem),
    var(--bg);
}

button, input, select { font: inherit; }
button { cursor: pointer; }

.container {
  width: min(1320px, calc(100% - 32px));
  margin-inline: auto;
}

.topbar {
  border-bottom: 1px solid rgba(219, 227, 239, 0.9);
  background: rgba(246, 248, 252, 0.88);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: linear-gradient(135deg, #0f172a, #334155);
  color: white;
  font-weight: 800;
  letter-spacing: -0.04em;
  box-shadow: var(--shadow-soft);
  flex: none;
}

.brand-title {
  font-weight: 780;
  letter-spacing: -0.03em;
  font-size: clamp(1rem, 2vw, 1.25rem);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 0.1rem;
}

.header-actions {
  display: flex;
  gap: 0.65rem;
  align-items: center;
  flex: none;
}

.page-grid {
  display: grid;
  grid-template-columns: minmax(330px, 0.94fr) minmax(580px, 1.66fr);
  gap: 1.35rem;
  padding: 1.35rem 0 2rem;
  align-items: start;
}

.output-stack {
  display: grid;
  gap: 1.1rem;
}

.panel {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.25rem;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  font-size: clamp(1.55rem, 2.5vw, 2.2rem);
  line-height: 1.05;
  margin-bottom: 0.55rem;
  letter-spacing: -0.04em;
}
h2 {
  font-size: clamp(1.22rem, 2vw, 1.58rem);
  line-height: 1.12;
  margin-bottom: 0.5rem;
  letter-spacing: -0.035em;
}
h3 {
  font-size: 1rem;
  margin-bottom: 0.2rem;
  letter-spacing: -0.02em;
}

.section-kicker {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  font-weight: 740;
  margin-bottom: 0.4rem;
}

.muted { color: var(--muted-2); line-height: 1.65; }
.small { font-size: 0.93rem; }

.field-group {
  margin: 1rem 0 0.95rem;
  padding: 0;
  border: none;
}

.field-group legend {
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-weight: 760;
  font-size: 0.84rem;
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
  border-radius: var(--radius-sm);
}

.segment input { position: absolute; opacity: 0; pointer-events: none; }
.segment span {
  display: grid;
  place-items: center;
  min-height: 46px;
  padding: 0.7rem 0.9rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--soft);
  color: var(--muted-2);
  font-weight: 760;
  transition: 0.18s ease;
}
.segment input:checked + span {
  background: #0f172a;
  color: #ffffff;
  border-color: #0f172a;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.16);
}

.input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.full-width { margin-top: 0.75rem; }

.field {
  display: grid;
  gap: 0.35rem;
}
.field span {
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 720;
}
.field em {
  color: var(--muted);
  font-style: normal;
  font-weight: 560;
  margin-left: 0.25rem;
}

input, select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--soft);
  color: var(--text);
  padding: 0.7rem 0.85rem;
  outline: none;
  transition: 0.15s ease;
}
input:focus, select:focus {
  border-color: #93c5fd;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
  background: #ffffff;
}
input:invalid { border-color: #fca5a5; }

.button-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  margin-top: 1rem;
}

.btn {
  min-height: 43px;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: #ffffff;
  color: var(--text);
  font-weight: 760;
  padding: 0.65rem 0.85rem;
  transition: 0.18s ease;
}
.btn:hover { transform: translateY(-1px); border-color: #94a3b8; background: #f8fafc; }
.btn:active { transform: translateY(0); }
.btn-primary { background: #0f172a; color: #ffffff; border-color: #0f172a; }
.btn-primary:hover { background: #1e293b; border-color: #1e293b; }
.btn-ghost { background: rgba(255, 255, 255, 0.7); }

.case-card, .note-card, .interpretation-card {
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--soft);
  padding: 0.95rem 1rem;
}
.case-summary { color: #334155; line-height: 1.7; font-size: 0.94rem; }
.note-card { color: var(--muted-2); font-size: 0.9rem; line-height: 1.6; }

.primary-result {
  margin-top: 1.05rem;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) 230px;
  gap: 1rem;
  align-items: center;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border-radius: 24px;
  padding: 1.05rem;
}
.model-label, .card-subtitle {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}
.risk-number {
  font-size: clamp(3rem, 8vw, 5rem);
  line-height: 1.02;
  font-weight: 820;
  letter-spacing: -0.08em;
  margin: 0.35rem 0 0.45rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.26rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 780;
  border: 1px solid transparent;
  white-space: nowrap;
}
.badge-low { color: var(--low); background: var(--low-bg); border-color: var(--low-border); }
.badge-borderline { color: var(--borderline); background: var(--borderline-bg); border-color: var(--borderline-border); }
.badge-high { color: var(--high); background: var(--high-bg); border-color: var(--high-border); }
.badge-na { color: var(--muted-2); background: #eef2f7; border-color: #d6dee9; }

.gauge-wrap { width: 100%; }
.gauge { width: 100%; height: auto; display: block; overflow: visible; }
.gauge-track, .gauge-fill {
  fill: none;
  stroke-width: 15;
  stroke-linecap: round;
}
.gauge-track { stroke: #e2e8f0; }
.gauge-fill { stroke: url(#none); stroke: #2563eb; transition: d 0.25s ease; }
.gauge-dot { fill: #0f172a; transition: cx 0.25s ease, cy 0.25s ease; filter: drop-shadow(0 4px 8px rgba(15, 23, 42, 0.3)); }
.gauge-labels { display: flex; justify-content: space-between; color: var(--muted); font-size: 0.82rem; margin-top: -0.4rem; }

.interpretation-title {
  font-weight: 780;
  font-size: 1.06rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.comparison-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
}
.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted-2);
  font-weight: 720;
  font-size: 0.9rem;
}
.toggle input { width: 18px; height: 18px; min-height: auto; accent-color: #0f172a; }

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
}
.result-card {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: #ffffff;
  padding: 1rem;
  min-height: 218px;
  box-shadow: var(--shadow-soft);
}
.result-card.emphasized { border-color: rgba(37, 99, 235, 0.32); box-shadow: 0 12px 32px rgba(37, 99, 235, 0.09); }
.card-risk {
  font-size: 2.18rem;
  font-weight: 820;
  letter-spacing: -0.06em;
  line-height: 1.08;
  margin: 0.78rem 0 0.45rem;
}
.card-status {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid #edf2f7;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.5;
}

.accordion-button {
  all: unset;
  cursor: pointer;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  font-weight: 800;
}
.accordion-body {
  margin-top: 1rem;
  color: var(--muted-2);
  line-height: 1.65;
  font-size: 0.93rem;
}
.accordion-body ul { margin-bottom: 0; padding-left: 1.2rem; }

.footer {
  color: var(--muted);
  font-size: 0.86rem;
  padding: 1.1rem 0 1.5rem;
}

.noscript {
  padding: 1rem;
  color: #991b1b;
  background: #fee2e2;
  border-bottom: 1px solid #fecaca;
}

@media (max-width: 980px) {
  .page-grid { grid-template-columns: 1fr; }
  .primary-result { grid-template-columns: 1fr; }
  .comparison-grid { grid-template-columns: 1fr; }
  .topbar-inner { align-items: flex-start; flex-direction: column; }
  .header-actions { width: 100%; display: grid; grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 22px, 1320px); }
  .input-grid { grid-template-columns: 1fr; }
  .button-row { grid-template-columns: 1fr; }
  .header-actions { grid-template-columns: 1fr; }
  .brand-subtitle { display: none; }
  .panel { padding: 1rem; border-radius: 20px; }
  .risk-number { font-size: 3.25rem; }
}

@media print {
  body { background: #ffffff; }
  .topbar, .footer, .button-row, .header-actions, .comparison-header .toggle { display: none !important; }
  .container { width: 100%; }
  .page-grid { display: block; padding: 0; }
  .panel { break-inside: avoid; box-shadow: none; margin-bottom: 1rem; }
  input, select { border: none; background: transparent; padding-left: 0; }
}