.ai-hero {
  background: linear-gradient(135deg, rgba(92, 51, 246, 0.06), rgba(255, 107, 107, 0.03), rgba(255, 217, 74, 0.05));
  border-bottom: 1.5px solid var(--border);
  padding: 48px 0 36px;
}

/* Generation container */
.generation-container {
  max-width: 768px;
}
.gen-layout {
  /* display: grid; */
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
  margin-top: 36px;
}
.gen-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
}
.diff-option {
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  padding: 11px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
}
.diff-option:hover {
  border-color: var(--primary);
}
.diff-option.active {
  border-color: var(--primary);
  background: var(--primary-faint);
}
.diff-option input {
  display: none;
}
.diff-emoji {
  font-size: 1.3rem;
}
.diff-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--navy);
  margin-top: 3px;
}
.qtype-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
}
.qtype-opt {
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 13px;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 9px;
}
.qtype-opt:hover {
  border-color: var(--primary);
}
.qtype-opt.active {
  border-color: var(--primary);
  background: var(--primary-faint);
}
.qtype-opt input {
  display: none;
}
.qtype-check {
  width: 17px;
  height: 17px;
  border-radius: 4px;
  border: 2px solid var(--border);
  margin-left: auto;
  flex-shrink: 0;
  transition: all var(--transition);
}
.qtype-opt.active .qtype-check {
  background: var(--primary);
  border-color: var(--primary);
}
.gen-btn {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: var(--radius-lg);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.97rem;
  box-shadow: 0 4px 18px rgba(92, 51, 246, 0.28);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
}
.gen-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(92, 51, 246, 0.36);
}
.preview-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: calc(var(--nav-h) + 20px);
}
.gen-q {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 10px;
  transition: all var(--transition);
}
.gen-q:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.gen-q-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 5px;
}
.gen-q-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--navy);
  line-height: 1.4;
}
.gen-q-type {
  display: inline-block;
  margin-top: 7px;
  font-size: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--slate);
  background: var(--bg);
  padding: 2px 9px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
}
.hist-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
}
.hist-item:last-child {
  border-bottom: none;
}
.hist-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--primary-faint);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.88rem;
  flex-shrink: 0;
}
.hist-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--navy);
}
.hist-meta {
  font-size: 0.73rem;
  color: var(--slate);
  margin-top: 1px;
}
@media (max-width: 900px) {
  .gen-layout {
    grid-template-columns: 1fr;
  }
  .preview-card {
    position: static;
  }
}


/* ══════════════════════════════════════
       INDIVIDUAL QUESTION BLOCK
       (matches reference exactly)
    ══════════════════════════════════════ */
.question-block {
  padding: 22px 28px;
  border-bottom: 1px solid #e5e7eb;
}

.question-block:last-of-type {
  border-bottom: none;
}

/* "Question N" label — blue, bold */
.q-label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.92rem;
  color: #5c33f6;
  margin-bottom: 6px;
}

/* Question text */
.q-text {
  font-size: 0.93rem;
  color: #374151;
  line-height: 1.55;
  margin-bottom: 14px;
}

/* Options list — plain, like reference */
.q-options {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Each option row */
.q-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 6px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.12s;
  user-select: none;
}

.q-option:hover {
  background: #f0edff;
}

/* Hide the real radio visually — we style the custom circle */
.q-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* Custom radio circle — unchecked: empty ring */
.q-radio {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid #9ca3af;
  background: #fff;
  flex-shrink: 0;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Checked state: filled blue with white inner dot */
.q-option input[type="radio"]:checked ~ .q-radio,
.q-option.selected .q-radio {
  background: #5c33f6;
  border-color: #5c33f6;
}

.q-option input[type="radio"]:checked ~ .q-radio::after,
.q-option.selected .q-radio::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
}

/* Option label text */
.q-option-text {
  font-size: 0.9rem;
  color: #374151;
  line-height: 1.4;
}

.q-option input[type="radio"]:checked ~ .q-option-text,
.q-option.selected .q-option-text {
  color: #5c33f6;
  font-weight: 600;
}

/* AI explain button per question */
.q-ai-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  color: #5c33f6;
  background: rgba(92, 51, 246, 0.07);
  border: 1.5px solid rgba(92, 51, 246, 0.18);
  border-radius: 100px;
  padding: 5px 12px;
  cursor: pointer;
  transition: background 0.15s;
}

.q-ai-btn:hover {
  background: rgba(92, 51, 246, 0.14);
}


.quiz-info {
  flex-direction: column;
  display: none;
}

/* Loader */

.loader {
    display: block;
    margin-top: 50px;
    text-align: center;
}

.loader{
    position: relative;
    font-size: 24px;
    letter-spacing: 2px;
  }
  .loader:before {
    content: "Generating Questions";
    color: #000000;
  }
  .loader:after {
    content: "";
    width: 20px;
    height: 20px;
    background-color: #ff3d00;
    border-radius: 50%;
    position: absolute;
    inset: 0;
    margin: auto;
    top: -70px;
    animation: motion 3s ease-in-out infinite;
  }

  @keyframes motion {
    0%, 50%, 100% {
      transform: translateX(0) scale(1);
    }
    25% {
      transform: translateX(-100px) scale(0.3);
    }
    75% {
      transform: translateX(100px) scale(0.3);
    }
  }