/* X?p h?ng c� nh�n � phong c�ch vui tuoi cho h?c sinh */

.pr-hero {
  background: linear-gradient(135deg, #dbeafe 0%, #fef3c7 55%, #ffedd5 100%);
  border: 2px solid #93c5fd;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.12);
  padding: 24px 28px;
  margin-bottom: 32px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pr-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.16);
}

.pr-hero__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.pr-hero__head h2 {
  margin: 0;
  font-size: 1.35rem;
  color: #1e40af;
}

.pr-hero__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, #FEF3C7, #FCD34D);
  box-shadow: 0 4px 12px rgba(251, 191, 36, 0.18);
}

.pr-hero__icon .stem-icon {
  --stem-icon-size: 26px;
  width: 26px;
  height: 26px;
}

.pr-hero__empty {
  text-align: center;
  padding: 16px 8px 8px;
}

.pr-hero__empty p {
  font-size: 1.05rem;
  color: #475569;
  margin-bottom: 16px;
}

.pr-hero__body {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "rank profile"
    "stats stats";
  gap: 20px;
  align-items: center;
}

.pr-hero__rank-block {
  grid-area: rank;
}

.pr-hero__rank-label {
  font-weight: 700;
  color: #64748b;
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.pr-hero__rank-value {
  font-size: 2.75rem;
  font-weight: 900;
  color: #2563eb;
  line-height: 1.1;
}

.pr-hero__rank-value--medal {
  font-size: 3.5rem;
}

.pr-hero__profile {
  grid-area: profile;
  display: flex;
  align-items: center;
  gap: 14px;
}

.pr-hero__info {
  text-align: right;
}

.pr-hero__name {
  font-weight: 700;
  font-size: 1.15rem;
  color: #0f172a;
}

.pr-hero__code {
  font-size: 0.85rem;
  color: #64748b;
  margin-top: 2px;
}

.pr-hero__stats {
  grid-area: stats;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.pr-stat {
  flex: 1;
  min-width: 100px;
  background: rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  text-align: center;
  border: 2px solid rgba(255, 255, 255, 0.9);
}

.pr-stat__value {
  display: block;
  font-weight: 800;
  font-size: 1.25rem;
  color: #ea580c;
}

.pr-stat__label {
  display: block;
  font-size: 0.8rem;
  color: #64748b;
  margin-top: 2px;
}

.pr-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  vertical-align: middle;
}

.pr-badge--top10 {
  margin-top: 8px;
  background: linear-gradient(90deg, #f97316, #fbbf24);
  color: #fff;
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.35);
}

.pr-badge--me {
  background: #2563eb;
  color: #fff;
  margin-left: 6px;
}

.pr-medal {
  font-size: 1.5rem;
  line-height: 1;
}

.pr-medal--hero,
.pr-medal--lg {
  font-size: 2rem;
}

.pr-board__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.pr-board__head h3 {
  margin: 0;
  font-size: 1.2rem;
}

.pr-board__hint {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pr-board__empty {
  padding: 28px;
  text-align: center;
  color: var(--text-muted);
}

.pr-table-wrap {
  padding: 0;
  overflow: hidden;
}

.pr-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 6px;
}

.pr-table thead th {
  text-align: left;
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.pr-table tbody tr {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.pr-table tbody tr:hover {
  transform: scale(1.005);
}

.pr-table td {
  padding: 14px 16px;
  background: var(--card);
  border-top: 2px solid var(--border);
  border-bottom: 2px solid var(--border);
  vertical-align: middle;
}

.pr-table td:first-child {
  border-left: 2px solid var(--border);
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.pr-table td:last-child {
  border-right: 2px solid var(--border);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.pr-row--me td {
  background: rgba(37, 99, 235, 0.08);
  border-color: #93c5fd;
}

.pr-row--podium td {
  background: linear-gradient(90deg, rgba(254, 243, 199, 0.5), rgba(255, 255, 255, 0.9));
}

.pr-col-rank {
  width: 64px;
  text-align: center;
}

.pr-rank-num {
  font-weight: 900;
  font-size: 1.1rem;
  color: #2563eb;
}

.pr-col-avatar {
  width: 56px;
}

.pr-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #bfdbfe;
  background: #eff6ff;
  display: block;
}

.pr-avatar--emoji {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.pr-col-student strong {
  display: inline;
  font-size: 1rem;
}

.pr-col-student small {
  display: block;
  color: #64748b;
  font-size: 0.8rem;
  margin-top: 2px;
}

.pr-level-badge {
  display: inline-block;
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  color: #fff;
  font-weight: 700;
  font-size: 0.8rem;
  padding: 5px 12px;
  border-radius: 999px;
}

.pr-col-xp {
  text-align: right;
  white-space: nowrap;
}

.pr-col-xp strong {
  font-size: 1.15rem;
  color: #ea580c;
}

.pr-col-missions {
  font-weight: 700;
  color: #334155;
}

/* Mobile cards � ?n tr�n desktop */
.pr-cards {
  display: none;
}

.pr-card {
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.pr-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.1);
}

.pr-card--me {
  border-color: #93c5fd;
  background: rgba(37, 99, 235, 0.06);
}

.pr-card__head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.pr-card__rank-label {
  font-weight: 700;
  color: #2563eb;
}

.pr-card__body {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.pr-card__info strong {
  display: block;
  font-size: 1rem;
}

.pr-card__info small {
  display: block;
  color: #64748b;
  font-size: 0.82rem;
  margin: 2px 0 8px;
}

.pr-card__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}

.pr-card__stat-label {
  display: block;
  font-size: 0.78rem;
  color: #64748b;
  margin-bottom: 2px;
}

.pr-card__stats strong {
  font-size: 1.1rem;
  color: #ea580c;
}

@media (max-width: 768px) {
  .pr-hero__body {
    grid-template-columns: 1fr;
    grid-template-areas:
      "rank"
      "profile"
      "stats";
  }

  .pr-hero__profile {
    justify-content: flex-start;
  }

  .pr-hero__info {
    text-align: left;
  }

  .pr-table-wrap {
    display: none;
  }

  .pr-cards {
    display: block;
  }
}

@media (max-width: 480px) {
  .pr-hero {
    padding: 18px 16px;
  }

  .pr-hero__rank-value {
    font-size: 2.25rem;
  }

  .pr-stat {
    min-width: calc(50% - 6px);
  }
}