:root{
  --bg: #f7f9fc;
  --card: #ffffff;
  --ink: #131722;
  --ink-dim: #495063;
  --brand: #2563eb; /* diskret blå */
  --ok: #16a34a;
  --err: #dc2626;
  --warn: #b45309;
  --muted: #e6eaf2;
  --ring: rgba(37, 99, 235, .25);
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin: 0;
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Cantarell, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  color: var(--ink);
  background: radial-gradient(1200px 600px at 20% -10%, #ffffff, var(--bg)) fixed;
}

.page-header, .page-footer{
  max-width: 920px;
  margin: 24px auto 0;
  padding: 0 16px;
}
.page-footer{ margin-top: 12px; margin-bottom: 40px; }

.lead{ color: var(--ink-dim); margin-top: 4px; }

.container{
  max-width: 920px;
  margin: 16px auto;
  padding: 8px 16px 24px;
}

.card{
  background: var(--card);
  border: 1px solid var(--muted);
  border-radius: 14px;
  padding: 16px;
  margin: 14px 0;
  box-shadow: 0 6px 18px rgba(10, 20, 40, .04);
}

.q-head{
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.q-title{
  font-size: 1.05rem;
  margin: 0;
}
.badge{
  margin-left: auto;
  font-size: .85rem;
  background: #eef2ff;
  color: #3730a3;
  border: 1px solid #e0e7ff;
  padding: 2px 8px;
  border-radius: 999px;
}

.options{
  display: grid;
  gap: 8px;
  margin: 8px 0 4px;
  border: 0;
  padding: 0;
}
.option{
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  align-items: start;
  padding: 10px 12px;
  border: 1px solid var(--muted);
  border-radius: 10px;
  background: #fff;
  transition: border .15s ease, box-shadow .15s ease;
  cursor: pointer;
}
.option:hover{
  border-color: #cfd7e6;
  box-shadow: 0 0 0 4px var(--ring);
}
.option input{
  margin-top: 4px;
}
.option-text{
  color: var(--ink);
}

.option.correct{
  border-color: rgba(22,163,74,.4);
  background: linear-gradient(#fff, #f6fff8);
  box-shadow: 0 0 0 3px rgba(22,163,74,.12);
}
.option.incorrect{
  border-color: rgba(220,38,38,.4);
  background: linear-gradient(#fff, #fff6f6);
  box-shadow: 0 0 0 3px rgba(220,38,38,.10);
}

.feedback{ margin-top: 6px; min-height: 1.2em; }
.fb{
  display: inline-block;
  padding: 4px 8px;
  border-radius: 8px;
  font-size: .95rem;
}
.fb-ok{ color: var(--ok); background: rgba(22,163,74,.08); border: 1px solid rgba(22,163,74,.25); }
.fb-err{ color: var(--err); background: rgba(220,38,38,.08); border: 1px solid rgba(220,38,38,.25); }
.fb-warn{ color: var(--warn); background: rgba(180,83,9,.08); border: 1px solid rgba(180,83,9,.25); }

.btn-row{ display: flex; gap: 10px; flex-wrap: wrap; }
.btn{
  appearance: none;
  border: 1px solid var(--muted);
  background: #fff;
  color: var(--ink);
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .04s ease, box-shadow .15s ease, border .15s ease;
}
.btn:active{ transform: translateY(1px); }
.btn.primary{
  background: var(--brand);
  border-color: #1e40af;
  color: #fff;
}
.btn.ghost{ background: transparent; }
.btn.subtle{ background: #f3f4f6; }

.hint{ color: var(--ink-dim); font-size: .95rem; margin-top: 10px; }
.score{
  margin: 18px 0 6px;
  padding: 12px 14px;
  border: 1px dashed #cdd6e6;
  background: #f8fbff;
  border-radius: 12px;
}