:root {
  --bg: #0b0c10;
  --card: #12141b;
  --text: #e8eaf0;
  --muted: #a7adbb;
  --border: rgba(255,255,255,0.08);
  --primary: #4f7cff;
  --error: #ff5a6a;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

body {
  margin: 0;
  background: radial-gradient(1200px 700px at 20% 10%, rgba(79,124,255,0.25), transparent 60%),
              radial-gradient(1000px 600px at 80% 20%, rgba(255,90,106,0.15), transparent 60%),
              var(--bg);
  color: var(--text);
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.header h1 { margin: 0 0 6px; font-size: 28px; }
.header .sub { margin: 0 0 18px; color: var(--muted); }

.card {
  background: rgba(18,20,27,0.9);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 18px 16px;
  box-shadow: var(--shadow);
  margin: 14px 0;
}

.hidden { display: none; }

.row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px;
  align-items: center;
  margin: 10px 0;
}

label { color: var(--muted); font-size: 14px; }

input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  outline: none;
}

select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  outline: none;
}

.radioGroup {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.inline {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--text);
  font-size: 14px;
}

.identity {
  margin: 10px 0 4px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255,255,255,0.02);
}

.h3 { margin: 0 0 10px; font-size: 16px; color: var(--text); }

.context {
  margin: 10px 0 12px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255,255,255,0.02);
}

.contextBox {
  white-space: pre-wrap;
  line-height: 1.45;
  font-size: 14px;
  color: var(--text);
}

.topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.small { font-size: 12px; }
.muted { color: var(--muted); }
.stem { font-size: 18px; line-height: 1.5; margin-top: 10px; }

.options {
  display: grid;
  gap: 10px;
  margin: 14px 0 8px;
}

.option {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  cursor: pointer;
}

.option:hover { background: rgba(255,255,255,0.04); }
.option input { transform: translateY(1px); }

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 12px;
}

.btn {
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  cursor: pointer;
}

.btn.primary {
  border-color: rgba(79,124,255,0.6);
  background: rgba(79,124,255,0.18);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.pred h3 { margin: 18px 0 10px; }
table { border-collapse: collapse; width: 100%; }
th, td { border: 1px solid var(--border); padding: 10px 10px; text-align: center; }
th { color: var(--muted); font-weight: 600; background: rgba(255,255,255,0.03); }

.error {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,90,106,0.35);
  color: var(--error);
  background: rgba(255,90,106,0.08);
}

.footer { margin-top: 24px; text-align: center; }
.hint { color: var(--muted); font-size: 12px; margin: 8px 0 0; }