/* RESET */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, sans-serif;
}

body {
  background: #f4f6fb;
  color: #1c1d1f;
}

/* HEADER */
.site-header {
  background: white;
  text-align: center;
  padding: 24px 16px;
  border-bottom: 1px solid #e5e7eb;
}

.site-header h1 {
  color: #6c63ff;
  font-size: 2rem;
  font-weight: 800;
}

.site-header p {
  margin-top: 6px;
  color: #6b7280;
  font-size: 0.95rem;
}

/* CONTAINER */
.container {
  max-width: 1000px;
  margin: 32px auto;
  padding: 0 16px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 20px;
}

/* GRID */
.exam-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

/* CARD */
.exam-card {
  background: white;
  border-radius: 14px;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 6px 18px rgba(0,0,0,0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.exam-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(108,99,255,0.25);
}

.exam-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #6c63ff;
}

.exam-card p {
  font-size: 0.9rem;
  color: #6b7280;
  margin-top: 4px;
}

.exam-card span {
  font-size: 2rem;
}

/* HIGHLIGHT */
.exam-card.highlight h3 {
  color: #00b894;
}

/* FOOTER */
.site-footer {
  text-align: center;
  margin: 40px 0 20px;
  color: #9ca3af;
  font-size: 0.9rem;
}

/* ============================= */
/* QUIZ PAGE STYLES */
/* ============================= */

.quiz-card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 10px 28px rgba(0,0,0,0.08);
}

.hidden {
  display: none;
}

.question-count {
  font-size: 0.85rem;
  color: #6b7280;
  margin-bottom: 8px;
}

.question-text {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.4;
}

/* OPTIONS */
.options-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.option {
  background: #f5f6ff;
  border-radius: 10px;
  padding: 14px 16px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s ease;
  font-weight: 500;
}

.option:hover {
  background: #ebe9ff;
}

.option.selected {
  border-color: #6c63ff;
  background: #e9e6ff;
}

/* NAVIGATION */
.quiz-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 28px;
}

/* BUTTONS */
.btn {
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
  border: none;
  cursor: pointer;
}

.btn.primary {
  background: #6c63ff;
  color: white;
}

.btn.primary:hover {
  background: #584fe0;
}

.btn.secondary {
  background: #e5e7eb;
  color: #374151;
}

.btn.secondary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* LOADING */
.loading-box {
  text-align: center;
  font-size: 1.1rem;
  color: #374151;
  margin-top: 40px;
}

/* ============================= */
/* RESULT PAGE STYLES */
/* ============================= */

.container.wide {
  max-width: 900px;
}

/* RESULT CARDS */
.result-card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 10px 28px rgba(0,0,0,0.08);
}

/* SCORE CARD */
.score-card {
  text-align: center;
}

.score-text {
  font-size: 2.2rem;
  font-weight: 800;
  color: #6c63ff;
}

.score-stats {
  margin-top: 8px;
  color: #6b7280;
  font-size: 1rem;
}

/* SECTION TITLES */
.section-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #111827;
}

/* SUBJECT BREAKDOWN */
.subject-list > div {
  display: flex;
  justify-content: space-between;
  background: #f5f6ff;
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 10px;
  font-weight: 500;
}

/* ANSWER REVIEW */
.answers-list > div {
  background: #f9fafb;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
  border-left: 5px solid #6c63ff;
}

.answers-list h4 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.answers-list p {
  font-size: 0.95rem;
  color: #374151;
}

/* BUTTON VARIANTS */
.btn.success {
  background: #00c9a7;
  color: white;
  margin-top: 16px;
}

.btn.success:hover {
  background: #00b096;
}

.btn.large {
  padding: 14px 28px;
  font-size: 1rem;
}

/* CTA */
.cta-center {
  text-align: center;
  margin-top: 32px;
}

/* ============================= */
/* QUIZ HEADER */
/* ============================= */

.quiz-header {
  position: sticky;
  top: 0;
  background: white;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  z-index: 10;
}

.quiz-title {
  flex: 1;
  text-align: center;
}

.quiz-title h1 {
  font-size: 1.3rem;
  font-weight: 800;
  color: #6c63ff;
}

.quiz-title p {
  font-size: 0.9rem;
  color: #6b7280;
}

.back-btn {
  background: none;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: #6c63ff;
  cursor: pointer;
}

/* ============================= */
/* EXIT MODAL */
/* ============================= */

.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.45);
}

.modal-box {
  position: relative;
  max-width: 320px;
  margin: 25vh auto;
  background: white;
  padding: 20px;
  border-radius: 14px;
  text-align: center;
  box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

.modal-box h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.modal-box p {
  font-size: 0.95rem;
  color: #555;
  margin-bottom: 16px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.btn.danger {
  background: #ef4444;
  color: white;
}

.install-btn {
  margin: 20px auto;
  padding: 12px 22px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  background: #6C63FF;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  display: block;
  box-shadow: 0 6px 14px rgba(108, 99, 255, 0.3);
}

.install-btn:hover {
  background: #5a52e0;
}

.hidden {
  display: none;
}