:root {
  --bg: #14141a;
  --panel: #1e1e26;
  --accent: #c9a24b;
  --text: #e8e6e0;
  --muted: #9a9aa5;
  --correct: #3fae5c;
  --wrong: #c94b4b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.card {
  background: var(--panel);
  border: 1px solid #2c2c36;
  border-radius: 10px;
  padding: 28px;
  max-width: 560px;
  width: 100%;
}

h1, h2 { margin-top: 0; color: var(--accent); }

input[type="text"], input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 6px;
  border: 1px solid #3a3a46;
  background: #0f0f14;
  color: var(--text);
  font-size: 16px;
  margin: 8px 0 16px;
}

button {
  background: var(--accent);
  color: #14141a;
  border: none;
  padding: 10px 18px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

button:disabled { opacity: 0.5; cursor: not-allowed; }

.progress { color: var(--muted); font-size: 13px; margin-bottom: 10px; }

.question-image { max-width: 100%; border-radius: 8px; margin: 12px 0; }

.answers { display: flex; flex-direction: column; gap: 10px; margin: 16px 0; }

.answer-btn {
  background: #26262f;
  color: var(--text);
  border: 1px solid #3a3a46;
  text-align: left;
  padding: 12px 14px;
  border-radius: 8px;
  font-weight: 400;
}

.answer-btn:hover:not(:disabled) { border-color: var(--accent); }

.answer-btn.correct { background: rgba(63,174,92,0.2); border-color: var(--correct); }
.answer-btn.wrong { background: rgba(201,75,75,0.2); border-color: var(--wrong); }

.explanation {
  background: #26262f;
  border-left: 3px solid var(--accent);
  padding: 12px 14px;
  border-radius: 6px;
  margin: 16px 0;
}

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 6px 8px; border-bottom: 1px solid #2c2c36; text-align: left; }
th { color: var(--accent); }

.summary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 20px; }
.summary-box { background: #26262f; padding: 12px; border-radius: 8px; }
.summary-box .num { font-size: 22px; font-weight: 700; color: var(--accent); }
.summary-box .label { font-size: 12px; color: var(--muted); }

.error { color: var(--wrong); font-size: 14px; }
.wide { max-width: 1000px; }