/* ========================================
   Leaderboard Page Styles
   Professional, modern design matching reference
   ======================================== */

/* Ensure scrolling works */
html, body {
  overflow-y: auto !important;
  height: auto !important;
  position: static !important;
}

/* Page Container */
.about-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0b0c15 0%, #1a1b2e 100%);
  padding: 0;
  margin: 0;
  overflow-y: auto;
}

/* Header */
.about-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  background: rgba(10, 12, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.about-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.about-logo:hover {
  color: #4AABC2;
  transform: translateX(-2px);
}

.about-logo i {
  font-size: 20px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 18px;
}

.header-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(74, 171, 194, 0.5);
  transform: translateY(-2px);
  color: #4AABC2;
}

.header-btn:active {
  transform: translateY(0);
}

/* Content Area */
.about-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 40px 80px;
}

.about-title {
  font-size: 42px;
  font-weight: 700;
  margin: 0 0 16px;
  background: linear-gradient(135deg, #ffffff 0%, #4AABC2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.about-description {
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 32px;
  max-width: 900px;
}

/* Action Buttons */
.about-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.about-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: 12px;
  background: rgba(74, 171, 194, 0.1);
  border: 1px solid rgba(74, 171, 194, 0.3);
  color: #4AABC2;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s ease;
}

.about-btn:hover {
  background: rgba(74, 171, 194, 0.2);
  border-color: rgba(74, 171, 194, 0.5);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(74, 171, 194, 0.2);
}

.about-btn:active {
  transform: translateY(0);
}

.about-btn i {
  font-size: 18px;
}

/* Mission Cards */
.mission-card {
  background: rgba(20, 22, 35, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 24px;
  transition: all 0.3s ease;
}

.mission-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.mission-card h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.95);
}

.mission-card p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
  margin: 0 0 16px;
  font-size: 15px;
}

.mission-card p:last-child {
  margin-bottom: 0;
}

.mission-card ul,
.mission-card ol {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
  margin: 16px 0;
  padding-left: 24px;
}

.mission-card li {
  margin-bottom: 12px;
  font-size: 15px;
}

.mission-card li strong {
  color: rgba(255, 255, 255, 0.95);
  font-weight: 600;
}

/* Leaderboard Table Container */
#leaderboard-root {
  min-height: 400px;
}

.dm-lb-shell {
  width: 100%;
}

.dm-lb-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.dm-lb-title {
  font-size: 28px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.95);
  margin: 0 0 8px;
}

.dm-lb-subtitle {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

/* Table Wrapper */
.dm-lb-table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(10, 12, 20, 0.4);
}

/* Table Styles */
.dm-lb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.dm-lb-table thead {
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dm-lb-table th {
  padding: 16px 20px;
  text-align: left;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.dm-lb-table tbody tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.2s ease;
}

.dm-lb-table tbody tr:hover {
  background: rgba(74, 171, 194, 0.05);
}

.dm-lb-table tbody tr:last-child {
  border-bottom: none;
}

.dm-lb-table td {
  padding: 18px 20px;
  color: rgba(255, 255, 255, 0.85);
  vertical-align: middle;
}

/* Rank Column */
.dm-lb-rank {
  font-weight: 700;
  width: 80px;
}

.dm-lb-rank-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  padding: 6px 12px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
  font-weight: 700;
}

/* Medal Ranks */
.dm-lb-rank.rank-1 .dm-lb-rank-pill {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 215, 0, 0.1));
  border-color: rgba(255, 215, 0, 0.4);
  color: #FFD700;
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
}

.dm-lb-rank.rank-2 .dm-lb-rank-pill {
  background: linear-gradient(135deg, rgba(192, 192, 192, 0.2), rgba(192, 192, 192, 0.1));
  border-color: rgba(192, 192, 192, 0.4);
  color: #C0C0C0;
  box-shadow: 0 0 20px rgba(192, 192, 192, 0.2);
}

.dm-lb-rank.rank-3 .dm-lb-rank-pill {
  background: linear-gradient(135deg, rgba(205, 127, 50, 0.2), rgba(205, 127, 50, 0.1));
  border-color: rgba(205, 127, 50, 0.4);
  color: #CD7F32;
  box-shadow: 0 0 20px rgba(205, 127, 50, 0.2);
}

/* Model Column */
.dm-lb-model {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.dm-lb-model-name {
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  font-size: 15px;
}

.dm-lb-model-provider {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

/* Win Rate Pill */
.dm-lb-win-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(74, 171, 194, 0.15);
  border: 1px solid rgba(74, 171, 194, 0.3);
  color: #4AABC2;
  font-weight: 700;
  font-size: 14px;
}

/* Numbers */
.dm-lb-num {
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
}

/* Loading/Empty States */
.dm-lb-state {
  text-align: center;
  padding: 60px 20px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.dm-lb-state-title {
  font-size: 20px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 8px;
}

.dm-lb-state-subtitle {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

/* Skeleton Loading */
.dm-lb-row-skel td {
  padding: 18px 20px;
}

.dm-skel {
  height: 14px;
  border-radius: 8px;
  background: linear-gradient(90deg,
      rgba(255, 255, 255, 0.05) 0%,
      rgba(255, 255, 255, 0.1) 50%,
      rgba(255, 255, 255, 0.05) 100%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.dm-skel.w-30 {
  width: 30%;
}

.dm-skel.w-40 {
  width: 40%;
}

.dm-skel.w-70 {
  width: 70%;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .about-content {
    padding: 32px 24px 60px;
  }

  .about-title {
    font-size: 36px;
  }

  .mission-card {
    padding: 24px;
  }
}

@media (max-width: 768px) {
  .about-header {
    padding: 16px 20px;
  }

  .about-content {
    padding: 24px 16px 60px;
  }

  .about-title {
    font-size: 28px;
  }

  .about-description {
    font-size: 14px;
  }

  .mission-card {
    padding: 20px;
  }

  .mission-card h2 {
    font-size: 20px;
  }

  .dm-lb-title {
    font-size: 22px;
  }

  .dm-lb-table-wrap {
    border-radius: 8px;
  }

  .dm-lb-table th,
  .dm-lb-table td {
    padding: 12px 14px;
    font-size: 13px;
  }

  .dm-lb-rank-pill {
    min-width: 32px;
    padding: 4px 10px;
    font-size: 12px;
  }

  .dm-lb-model-name {
    font-size: 14px;
  }

  .dm-lb-win-pill {
    padding: 4px 10px;
    font-size: 12px;
  }

  /* Hide provider on mobile */
  .dm-lb-model-provider {
    display: none;
  }

  /* Stack table on very small screens */
  .dm-lb-table {
    font-size: 12px;
  }
}

@media (max-width: 480px) {
  .about-title {
    font-size: 24px;
  }

  .about-buttons {
    flex-direction: column;
  }

  .about-btn {
    width: 100%;
    justify-content: center;
  }

  .dm-lb-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .dm-lb-table th:nth-child(4),
  .dm-lb-table td:nth-child(4) {
    display: none;
  }
}