body {
  background: #0d1428;
  color: #fff;
  font-family: "Cairo", sans-serif;
  margin: 0;
  padding-bottom: 80px;
}
.top-bar {
  text-align: center;
  padding: 20px 10px;
  background: linear-gradient(135deg, #162447, #1f4068);
}
.top-bar h1 {
  margin: 0;
  font-size: 1.6rem;
  color: #6ec7ff;
  text-shadow: 0 0 6px rgba(110,199,255,0.65);
}
.top-bar p {
  margin: 5px 0 0;
  font-size: 1.8rem;
  font-weight: 700;
  color: #6ec7ff;
  text-shadow: 0 0 6px rgba(110,199,255,0.45);
}
.phone {
  font-size: 1.4rem;
  opacity: 1;
  color: #6ec7ff;
}
.quiz-container {
  max-width: 1100px;
  margin: 20px auto;
  display: grid;
  gap: 14px;
  padding: 0 10px;
}
.question-card {
  background: #111a30;
  border-radius: 16px;
  padding: 14px 16px 18px;
  box-shadow: 0 8px 22px rgba(0,0,0,0.25);
}
.q-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  border-bottom: 1.5px solid rgba(255,255,255,0.12);
  padding-bottom: 8px;
}
.q-num {
  background: #6ec7ff;
  color: #0d1428;
  min-width: 74px;
  height: 42px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 700;
}
.q-text {
  font-size: 1.05rem;
  flex: 1;
  text-align: left;
  line-height: 1.4;
}
.options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}
.option-btn {
  background: #171f35;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 8px 14px;
  width: calc(50% - 8px);
  text-align: left;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: 0.2s;
  color: #fff;
  min-height: 44px;
  font-weight: 400;
}
.option-btn span.letter {
  font-weight: 700;
  color: #6ec7ff;
  font-size: 1rem;
}
.option-btn.selected {
  background: #ffefad;
  color: #000;
  font-weight: 700;
}
.option-btn.correct {
  background: #1b9aaa;
  border-color: #157b86;
  color: #fff;
  font-weight: 700;
}
.option-btn.wrong {
  background: #d34444;
  border-color: #b83636;
  color: #fff;
  font-weight: 700;
}
.text-row {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}
.text-pill {
  flex: 1;
  border: none;
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 0.95rem;
  outline: none;
}
.text-pill.student { background: #ffefad; color: #000; }
.text-pill.student.filled { font-weight: 700; font-size: 1.05rem; }
.text-pill.student.correct { background: #1b9aaa; color: #fff; font-weight: 700; font-size: 1.05rem; }
.text-pill.student.wrong { background: #d34444; color: #fff; font-weight: 700; font-size: 1.05rem; }
.text-pill.correct-answer { background: #1b9aaa; color: #fff; display: none; }
.text-pill.correct-answer.show { display: block; font-weight: 700; font-size: 1.05rem; }
.actions {text-align:center;margin-top:25px;}
.actions button{
  background:#1b9aaa;
  border:none;
  color:#fff;
  padding:10px 18px;
  border-radius:999px;
  font-weight:600;
  cursor:pointer;
  margin:0 5px;
}
.inline-score {
  display: inline-block !important;
  background: #ffffff !important;
  color: #ff0000 !important;
  padding: 10px 30px !important;
  border-radius: 12px !important;
  font-weight: 900 !important;
  font-size: 3.2rem !important;
  line-height: 1 !important;
  margin: 0 20px !important;
  text-align: center !important;
}
.result{
  max-width:1100px;
  margin:25px auto;
  background:rgba(255,255,255,0.04);
  padding:14px 12px;
  border-radius:14px;
}
.explain-box {
  margin-top: 8px;
  background: rgba(17, 26, 48, 0.35);
  border: 1px solid rgba(255,255,255,0.05);
  border-left: 4px solid #6ec7ff;
  border-radius: 10px;
  padding: 6px 10px 8px;
  font-size: 0.78rem;
  line-height: 1.35;
  display: none;
}
.analysis-line {
  color: #6ec7ff;
  margin-top: 4px;
  font-size: 0.78rem;
}
@media (max-width: 720px) {
  .option-btn {width: 100%;}
  .q-header {flex-wrap: wrap;}
  .text-row {flex-direction: column;}
  .inline-score {margin-top: 10px;}
}