/* === Weakness Dashboard Panel === */
.weakness-panel {
  background: white;
  border-radius: 20px; padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border: 1px solid #E8ECF1;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
}
.weakness-panel::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: 21px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(91,94,244,0.15), rgba(124,58,237,0.1), rgba(236,72,153,0.15));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.weakness-panel:hover::before { opacity: 1; }
.weakness-panel::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #5b5ef4, #7c3aed, #ec4899);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.weakness-panel:hover::after { transform: scaleX(1); }
.weakness-panel h3 {
  font-size: 1.15rem; font-weight: 900; margin-bottom: 0.3rem;
  background: linear-gradient(135deg, #5b5ef4, #7c3aed, #ec4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.wp-sub { font-size: 0.85rem; color: #64748b; margin-bottom: 1rem; }
.wp-tabs { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.wp-tab {
  padding: 0.4rem 1rem; border-radius: 50px; font-weight: 800; font-size: 0.8rem;
  border: 2px solid #e8eaff; background: white; color: #64748b; cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.wp-tab.active {
  background: linear-gradient(135deg, #5b5ef4, #7c3aed);
  color: white; border-color: #5b5ef4;
  box-shadow: 0 3px 12px rgba(91,94,244,0.25), 0 0 20px rgba(91,94,244,0.1);
}
.wp-tab:hover:not(.active) {
  border-color: #5b5ef4; color: #5b5ef4;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(91,94,244,0.1);
}

/* Weakness Cards */
.weakness-cards { display: flex; flex-direction: column; gap: 0.75rem; }
.wk-card {
  display: flex; align-items: center; gap: 1rem;
  padding: 1rem 1.2rem; border-radius: 18px; border: 2px solid;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: pointer; position: relative; overflow: hidden;
}
.wk-card:hover {
  transform: translateY(-5px) translateX(4px);
  box-shadow: 0 12px 40px rgba(91,94,244,0.12);
}
.wk-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
}
.wk-card.critical { border-color: #fecaca; background: #fef2f2; }
.wk-card.critical::before { background: linear-gradient(180deg, #dc2626, #ef4444); }
.wk-card.critical:hover { box-shadow: 0 12px 40px rgba(220,38,38,0.12); }
.wk-card.weak { border-color: #fed7aa; background: #fff7ed; }
.wk-card.weak::before { background: linear-gradient(180deg, #f97316, #fb923c); }
.wk-card.weak:hover { box-shadow: 0 12px 40px rgba(249,115,22,0.12); }
.wk-card.average { border-color: #fef08a; background: #fefce8; }
.wk-card.average::before { background: linear-gradient(180deg, #eab308, #facc15); }
.wk-card.average:hover { box-shadow: 0 12px 40px rgba(234,179,8,0.12); }

.wk-severity {
  font-size: 1.4rem; flex-shrink: 0;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.wk-card:hover .wk-severity { transform: scale(1.15); }
.wk-info { flex: 1; min-width: 0; }
.wk-topic {
  font-weight: 800; font-size: 0.95rem; color: #1a1a2e;
  margin-bottom: 0.2rem; text-transform: capitalize;
}
.wk-category {
  font-size: 0.75rem; font-weight: 700; color: #64748b;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.wk-meta { display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; }
.wk-score {
  font-weight: 900; font-size: 1.1rem; min-width: 50px; text-align: center;
  padding: 0.35rem 0.65rem; border-radius: 12px;
  background: white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.wk-card:hover .wk-score { box-shadow: 0 4px 12px rgba(0,0,0,0.08); }
.wk-trend {
  font-size: 0.8rem; font-weight: 800;
  display: flex; align-items: center; gap: 0.2rem;
  padding: 0.15rem 0.45rem; border-radius: 50px;
  transition: all 0.3s ease;
}
.wk-trend.improving { color: #22c55e; background: rgba(34,197,94,0.08); }
.wk-trend.improving:hover { background: rgba(34,197,94,0.15); box-shadow: 0 0 12px rgba(34,197,94,0.2); }
.wk-trend.declining { color: #dc2626; background: rgba(220,38,38,0.08); }
.wk-trend.declining:hover { background: rgba(220,38,38,0.15); box-shadow: 0 0 12px rgba(220,38,38,0.2); }
.wk-trend.stable { color: #64748b; background: rgba(100,116,139,0.08); }
.wk-trend.new { color: #5b5ef4; background: rgba(91,94,244,0.08); }
.wk-trend.new:hover { background: rgba(91,94,244,0.15); box-shadow: 0 0 12px rgba(91,94,244,0.2); }
.wk-action {
  padding: 0.4rem 0.8rem; border-radius: 10px; border: none;
  font-weight: 800; font-size: 0.78rem; cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  background: linear-gradient(135deg, #5b5ef4, #7c3aed); color: white;
  box-shadow: 0 3px 12px rgba(91,94,244,0.2);
  position: relative; overflow: hidden;
}
.wk-action::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}
.wk-action:hover::after { transform: translateX(100%); }
.wk-action:hover {
  transform: scale(1.05) translateY(-1px);
  box-shadow: 0 6px 20px rgba(91,94,244,0.35);
}

/* Peer Comparison */
.peer-section { margin-top: 1.5rem; }
.peer-card {
  display: flex; align-items: center; gap: 1rem;
  padding: 1rem; border-radius: 18px;
  background: linear-gradient(135deg, #f0f7ff, #eef0ff);
  border: 1.5px solid rgba(191,219,254,0.6); margin-bottom: 0.75rem;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative; overflow: hidden;
}
.peer-card::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, #3b82f6, #5b5ef4, #7c3aed);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.peer-card:hover::after { transform: scaleX(1); }
.peer-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(59,130,246,0.12);
}
.peer-icon { font-size: 1.5rem; }
.peer-info { flex: 1; }
.peer-msg { font-weight: 700; font-size: 0.9rem; color: #1e40af; margin-bottom: 0.2rem; }
.peer-sub { font-size: 0.8rem; color: #3b82f6; }
.peer-bar-wrap { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.5rem; }
.peer-bar {
  flex: 1; height: 8px; background: #e0e7ff; border-radius: 50px;
  overflow: hidden; position: relative;
}
.peer-bar-you {
  height: 100%; border-radius: 50px;
  position: absolute; top: 0; left: 0;
  transition: width 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
  background: linear-gradient(90deg, #5b5ef4, #7c3aed);
  box-shadow: 0 0 8px rgba(91,94,244,0.3);
}
.peer-bar-avg {
  height: 100%; border-radius: 50px;
  position: absolute; top: 0; left: 0; opacity: 0.3;
}
.peer-label { font-size: 0.72rem; font-weight: 800; min-width: 50px; }

/* Challenge Section */
.challenge-section { margin-top: 1.5rem; }
.challenge-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.75rem;
}
.ch-card {
  padding: 1rem; border-radius: 18px;
  background: white;
  border: 1px solid #E8ECF1;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative; overflow: hidden;
}
.ch-card::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #5b5ef4, #7c3aed, #ec4899);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.ch-card:hover::after { transform: scaleX(1); }
.ch-card.completed {
  border-color: #86efac; background: rgba(240,253,244,0.8);
}
.ch-card.completed::after {
  background: linear-gradient(90deg, #22c55e, #16a34a);
  transform: scaleX(1);
}
.ch-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(91,94,244,0.12);
}
.ch-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.5rem; }
.ch-icon {
  font-size: 1.5rem;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.ch-card:hover .ch-icon { transform: scale(1.15) rotate(-5deg); }
.ch-name { font-weight: 900; font-size: 0.95rem; }
.ch-xp {
  font-size: 0.72rem; font-weight: 800; color: #5b5ef4;
  background: linear-gradient(135deg, #eef0ff, #ede9fe);
  padding: 0.18rem 0.55rem; border-radius: 50px; margin-left: auto;
  border: 1px solid rgba(91,94,244,0.1);
  transition: all 0.3s ease;
}
.ch-card:hover .ch-xp {
  box-shadow: 0 0 12px rgba(91,94,244,0.2);
  border-color: rgba(91,94,244,0.3);
}
.ch-desc { font-size: 0.82rem; color: #64748b; margin-bottom: 0.75rem; }
.ch-progress-bar {
  height: 6px; background: #eeeeff; border-radius: 50px; overflow: hidden;
  position: relative;
}
.ch-progress-fill {
  height: 100%; border-radius: 50px;
  transition: width 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
  background: linear-gradient(90deg, #5b5ef4, #7c3aed);
  position: relative;
}
.ch-progress-fill::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: progressShine 2s ease-in-out infinite;
}
@keyframes progressShine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
.ch-card.completed .ch-progress-fill {
  background: linear-gradient(90deg, #22c55e, #16a34a);
}
.ch-progress-text {
  font-size: 0.72rem; font-weight: 800; color: #64748b;
  margin-top: 0.3rem; text-align: right;
}
.ch-completed-tag {
  position: absolute; top: -1px; right: -1px;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: white;
  font-size: 0.68rem; font-weight: 900; padding: 0.2rem 0.6rem;
  border-radius: 0 17px 0 10px;
  box-shadow: 0 2px 8px rgba(34,197,94,0.3);
}

/* Drill Modal */
.drill-overlay {
  position: fixed; inset: 0;
  background: rgba(45,52,54,0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.3s; pointer-events: none;
}
.drill-overlay.active { opacity: 1; pointer-events: all; }
.drill-modal {
  background: white;
  border-radius: 24px; padding: 2rem;
  max-width: 600px; width: 95%;
  max-height: 85vh; overflow-y: auto;
  transform: translateY(20px) scale(0.97);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 24px 80px rgba(0,0,0,0.12);
  border: 1px solid #E8ECF1;
  scrollbar-width: thin;
  scrollbar-color: rgba(91,94,244,0.3) transparent;
}
.drill-modal::-webkit-scrollbar { width: 6px; }
.drill-modal::-webkit-scrollbar-track { background: transparent; }
.drill-modal::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(91,94,244,0.3), rgba(236,72,153,0.3));
  border-radius: 50px;
}
.drill-modal::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(91,94,244,0.5), rgba(236,72,153,0.5));
}
.drill-overlay.active .drill-modal {
  transform: translateY(0) scale(1);
}
.drill-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1.5rem;
}
.drill-title {
  font-weight: 900; font-size: 1.2rem;
  background: linear-gradient(135deg, #5b5ef4, #7c3aed, #ec4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.drill-close {
  width: 36px; height: 36px; border-radius: 50%;
  border: 2px solid #e8eaff;
  background: rgba(255,255,255,0.8); font-size: 1.1rem; cursor: pointer; display: flex;
  align-items: center; justify-content: center;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  backdrop-filter: blur(8px);
}
.drill-close:hover {
  border-color: #dc2626; color: #dc2626;
  transform: rotate(90deg);
  background: #fef2f2;
  box-shadow: 0 0 16px rgba(220,38,38,0.15);
}
.drill-progress { margin-bottom: 1.5rem; }
.drill-progress-bar {
  height: 6px; background: #eeeeff; border-radius: 50px; overflow: hidden;
  position: relative;
}
.drill-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #5b5ef4, #7c3aed);
  border-radius: 50px;
  transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}
.drill-progress-fill::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: progressShine 2s ease-in-out infinite;
}
.drill-count { font-size: 0.78rem; font-weight: 800; color: #64748b; margin-top: 0.3rem; }
.drill-question {
  padding: 1.5rem; border-radius: 18px;
  background: linear-gradient(135deg, rgba(248,249,255,0.9), rgba(245,240,255,0.9));
  backdrop-filter: blur(8px);
  border: 1px solid rgba(91,94,244,0.08);
  margin-bottom: 1rem;
}
.drill-q-type {
  font-size: 0.72rem; font-weight: 800; color: #5b5ef4;
  text-transform: uppercase; margin-bottom: 0.5rem;
  background: linear-gradient(90deg, #5b5ef4, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.drill-q-text { font-weight: 700; font-size: 1rem; line-height: 1.6; }
.drill-input {
  width: 100%; padding: 0.8rem 1rem;
  border: 2px solid #e8eaff; border-radius: 14px;
  font-size: 1rem; font-family: 'Nunito', sans-serif; margin-bottom: 1rem;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  background: rgba(255,255,255,0.8);
}
.drill-input:focus {
  outline: none; border-color: #5b5ef4;
  box-shadow: 0 0 0 4px rgba(91,94,244,0.08), 0 0 20px rgba(91,94,244,0.06);
}
.drill-options {
  display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1rem;
}
.drill-option {
  padding: 0.75rem 1rem; border: 2px solid #e8eaff; border-radius: 14px;
  font-weight: 700; font-size: 0.95rem; cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  background: rgba(255,255,255,0.8); position: relative; overflow: hidden;
  backdrop-filter: blur(8px);
}
.drill-option::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, #5b5ef4, #7c3aed);
  transform: scaleY(0);
  transition: transform 0.25s ease;
}
.drill-option:hover {
  border-color: #5b5ef4; background: rgba(240,242,255,0.9);
  transform: translateX(4px);
}
.drill-option:hover::before { transform: scaleY(1); }
.drill-option.selected { border-color: #5b5ef4; background: #eef0ff; box-shadow: 0 0 16px rgba(91,94,244,0.1); }
.drill-option.correct { border-color: #22c55e; background: #f0fdf4; box-shadow: 0 0 16px rgba(34,197,94,0.15); }
.drill-option.wrong { border-color: #dc2626; background: #fef2f2; box-shadow: 0 0 16px rgba(220,38,38,0.15); }
.drill-actions { display: flex; gap: 0.75rem; justify-content: flex-end; }
.drill-btn {
  padding: 0.6rem 1.5rem; border-radius: 12px; font-weight: 800; font-size: 0.9rem;
  border: none; cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative; overflow: hidden;
}
.drill-btn-primary {
  background: linear-gradient(135deg, #5b5ef4, #7c3aed); color: white;
  box-shadow: 0 4px 16px rgba(91,94,244,0.25);
}
.drill-btn-primary::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}
.drill-btn-primary:hover::after { transform: translateX(100%); }
.drill-btn-primary:hover {
  box-shadow: 0 8px 28px rgba(91,94,244,0.4);
  transform: translateY(-2px);
}
.drill-btn-secondary {
  background: rgba(240,242,255,0.8); color: #5b5ef4;
  backdrop-filter: blur(8px);
}
.drill-btn-secondary:hover {
  background: #e8eaff;
  transform: translateY(-1px);
}
.drill-result {
  text-align: center; padding: 2rem;
}
.drill-result-score {
  font-size: 3rem; font-weight: 900; margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #5b5ef4, #7c3aed, #ec4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.drill-result-msg { font-size: 1.1rem; font-weight: 700; color: #64748b; margin-bottom: 1.5rem; }

/* Badge Popup */
.badge-popup {
  position: fixed; top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  z-index: 2000; opacity: 0;
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}
.badge-popup.show {
  opacity: 1; transform: translate(-50%, -50%) scale(1);
  pointer-events: all;
}
.badge-popup-inner {
  background: white;
  border-radius: 24px; padding: 2rem 3rem;
  text-align: center;
  box-shadow: 0 24px 80px rgba(0,0,0,0.12);
  border: 1px solid #E8ECF1;
  position: relative; overflow: hidden;
}
.badge-popup-inner::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: 25px;
  padding: 2px;
  background: linear-gradient(135deg, #5b5ef4, #7c3aed, #ec4899, #5b5ef4);
  background-size: 300% 300%;
  animation: borderRotate 3s linear infinite;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
@keyframes borderRotate {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.badge-popup-icon {
  font-size: 4rem; margin-bottom: 0.5rem;
  animation: badgeBounce 0.5s ease 0.3s;
  filter: drop-shadow(0 4px 12px rgba(91,94,244,0.2));
}
@keyframes badgeBounce {
  0%,100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}
.badge-popup-title {
  font-size: 0.8rem; font-weight: 800; color: #5b5ef4;
  text-transform: uppercase; letter-spacing: 1px;
  background: linear-gradient(90deg, #5b5ef4, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.badge-popup-name { font-size: 1.3rem; font-weight: 900; margin: 0.3rem 0; }
.badge-popup-desc { font-size: 0.85rem; color: #64748b; margin-bottom: 0.5rem; }
.badge-popup-xp {
  font-weight: 900; color: white;
  background: linear-gradient(135deg, #5b5ef4, #7c3aed);
  padding: 0.35rem 1.1rem; border-radius: 50px;
  display: inline-block; font-size: 0.9rem;
  box-shadow: 0 3px 12px rgba(91,94,244,0.3);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.badge-popup-xp:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(91,94,244,0.4);
}

/* Exam Priority Colors */
.exam-priority-list { display: flex; flex-direction: column; gap: 0.5rem; }
.ep-item {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.75rem 1rem; border-radius: 14px;
  border: 1.5px solid #e8eaff;
  background: white;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.ep-item.urgent { border-color: #fecaca; background: #fef2f2; }
.ep-item.focus { border-color: #fed7aa; background: #fff7ed; }
.ep-item:hover {
  transform: translateY(-3px) translateX(4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}
.ep-rank {
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 0.78rem; color: white; flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.ep-item:hover .ep-rank { transform: scale(1.1); }
.ep-rank.critical { background: linear-gradient(135deg, #dc2626, #ef4444); box-shadow: 0 2px 10px rgba(220,38,38,0.3); }
.ep-rank.weak { background: linear-gradient(135deg, #f97316, #fb923c); box-shadow: 0 2px 10px rgba(249,115,22,0.3); }
.ep-rank.average { background: linear-gradient(135deg, #eab308, #facc15); box-shadow: 0 2px 10px rgba(234,179,8,0.3); }
.ep-rank.strong { background: linear-gradient(135deg, #22c55e, #16a34a); box-shadow: 0 2px 10px rgba(34,197,94,0.3); }
.ep-topic { flex: 1; font-weight: 700; font-size: 0.9rem; }
.ep-marks { font-weight: 800; font-size: 0.8rem; color: #5b5ef4; }
.ep-time { font-size: 0.75rem; font-weight: 700; color: #64748b; }

/* Custom Scrollbar - Global */
.weakness-panel::-webkit-scrollbar,
.weakness-cards::-webkit-scrollbar { width: 6px; }
.weakness-panel::-webkit-scrollbar-track,
.weakness-cards::-webkit-scrollbar-track { background: transparent; }
.weakness-panel::-webkit-scrollbar-thumb,
.weakness-cards::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(91,94,244,0.3), rgba(236,72,153,0.3));
  border-radius: 50px;
}
.weakness-panel::-webkit-scrollbar-thumb:hover,
.weakness-cards::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(91,94,244,0.5), rgba(236,72,153,0.5));
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .weakness-panel, .weakness-panel::after, .weakness-panel::before,
  .wk-card, .wk-severity, .wk-score, .wk-action, .wk-action::after,
  .wp-tab, .peer-card, .peer-card::after, .peer-bar-you,
  .ch-card, .ch-card::after, .ch-icon, .ch-xp, .ch-progress-fill,
  .drill-modal, .drill-option, .drill-option::before,
  .drill-btn, .drill-btn-primary::after, .drill-close,
  .drill-input, .drill-progress-fill,
  .badge-popup, .badge-popup-xp, .ep-item, .ep-rank {
    transition: none !important;
    animation: none !important;
  }
  .ch-progress-fill::after,
  .drill-progress-fill::after { animation: none !important; }
}

/* Responsive */
@media (max-width: 768px) {
  .challenge-grid { grid-template-columns: 1fr; }
  .wk-card { flex-wrap: wrap; }
  .wk-meta { width: 100%; justify-content: space-between; margin-top: 0.5rem; }
  .drill-modal { padding: 1.5rem; }
  .badge-popup-inner { padding: 1.5rem 2rem; }
}