:root {
  --red: #b3121c;
  --red-dark: #7d0d14;
  --bg: #f4f3f1;
  --card: #ffffff;
  --text: #201d1c;
  --muted: #6b6462;
  --green: #1e7e34;
  --border: #e3ddd9;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--red);
  color: #fff;
  padding: 16px 20px;
}
.brand {
  font-weight: 700;
  font-size: 1.1rem;
  max-width: 720px;
  margin: 0 auto;
}
.brand span {
  display: block;
  font-weight: 400;
  font-size: 0.8rem;
  opacity: 0.85;
}

.container {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 24px auto;
  padding: 0 16px 40px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
}
.card.wide { max-width: 100%; }
.hidden { display: none !important; }

h1 { font-size: 1.4rem; margin: 0 0 8px; }
.muted { color: var(--muted); font-size: 0.92rem; }

form { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
label { font-weight: 600; font-size: 0.9rem; }
input[type="text"], input[type="number"] {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}
button {
  background: var(--red);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 6px;
}
button:hover { background: var(--red-dark); }
button.secondary {
  background: #fff;
  color: var(--red);
  border: 1px solid var(--red);
}
button:disabled { opacity: 0.5; cursor: not-allowed; }

.error { color: var(--red-dark); font-size: 0.88rem; min-height: 1.1em; }

.subjects-list { display: flex; flex-direction: column; gap: 10px; }
.subject-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
}
.subject-row label { font-weight: 500; cursor: pointer; }
.subject-row .count-input { width: 64px; }
.subject-row .weight { font-size: 0.78rem; color: var(--muted); }

.career-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  margin-top: 0;
  font: inherit;
}
.career-card:hover { border-color: var(--red); background: #fdf4f4; }
.career-card .career-label { font-weight: 600; }
.career-card .career-org { font-size: 0.8rem; color: var(--muted); }

.badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 2px 7px;
  border-radius: 999px;
  margin-left: 6px;
  vertical-align: middle;
}
.badge-real { background: #e6f4ea; color: var(--green); }
.badge-ai { background: #eef1f5; color: var(--muted); }

.spinner {
  width: 36px; height: 36px;
  border: 4px solid var(--border);
  border-top-color: var(--red);
  border-radius: 50%;
  margin: 0 auto 16px;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#step-loading { text-align: center; }

.quiz-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.quiz-header button { margin-top: 0; }

.questions { display: flex; flex-direction: column; gap: 16px; margin-top: 20px; }
.question-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}
.question-meta { font-size: 0.78rem; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.03em; }
.passage {
  background: #f7f5f3;
  border: 1px solid var(--border);
  border-left: 3px solid var(--red);
  border-radius: 6px;
  padding: 12px 14px;
  margin-bottom: 14px;
  font-size: 0.92rem;
}
.passage-title { font-weight: 700; margin-bottom: 6px; }
.passage-content { white-space: pre-wrap; color: var(--text); max-height: 320px; overflow-y: auto; }
.question-statement { font-weight: 600; margin-bottom: 12px; }
.options { display: flex; flex-direction: column; gap: 8px; }
.option {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}
.option input { margin-top: 3px; }
.option.correct { border-color: var(--green); background: #eefaf0; }
.option.wrong { border-color: var(--red); background: #fdecec; }

.answer-btn { align-self: flex-start; margin-top: 12px; }
.feedback { margin-top: 12px; padding: 10px 12px; border-radius: 8px; font-size: 0.92rem; }
.feedback.ok { background: #eefaf0; color: var(--green); }
.feedback.no { background: #fdecec; color: var(--red-dark); }
.feedback .explanation { color: var(--text); margin-top: 6px; font-weight: 400; }

#result-summary { margin: 16px 0; }
.result-total { font-size: 1.6rem; font-weight: 700; margin-bottom: 12px; }
.result-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 0.92rem; }

.foot {
  text-align: center;
  font-size: 0.76rem;
  color: var(--muted);
  padding: 16px;
}