:root {
  --bg-main: #000000;
  --bg-surface: #070a13;
  --bg-card: #0c101d;
  --bg-sidebar: #0a0e1a;
  --border-color: #172033;
  --border-glow: #1e3a8a;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-blue: #38bdf8;
  --accent-blue-glow: rgba(56, 189, 248, 0.25);
  --accent-green: #22c55e;
  --sidebar-width: 270px;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
}

.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar - Deep Dark Blue */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 50;
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
}

.sidebar-brand {
  padding: 28px 24px;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(180deg, rgba(14, 23, 42, 0.8) 0%, rgba(10, 14, 26, 0.2) 100%);
}

.sidebar-brand h2 {
  font-size: 1.2rem;
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.sidebar-brand p {
  font-size: 0.8rem;
  color: var(--accent-blue);
  margin-top: 4px;
  font-weight: 500;
}

.sidebar-nav {
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 14px 18px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 10px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-item:hover {
  background-color: rgba(56, 189, 248, 0.08);
  color: var(--text-main);
  transform: translateX(4px);
}

.nav-item.active {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15) 0%, rgba(30, 58, 138, 0.25) 100%);
  color: var(--accent-blue);
  border: 1px solid rgba(56, 189, 248, 0.3);
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.1);
}

/* Main Content Area */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 48px;
  max-width: 1280px;
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-header {
  margin-bottom: 36px;
}

.section-header h2 {
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #ffffff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* Tournament Lists & Rows */
.tournament-category {
  margin-bottom: 40px;
}

.tournament-category h3 {
  font-size: 0.9rem;
  color: var(--accent-blue);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
}

.tournament-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tournament-row {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.tournament-row::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-blue);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tournament-row:hover {
  border-color: var(--border-glow);
  background-color: var(--bg-surface);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7), 0 0 20px var(--accent-blue-glow);
}

.tournament-row:hover::before {
  opacity: 1;
}

.tournament-info {
  display: flex;
  align-items: center;
  gap: 20px;
}

.tournament-thumb {
  width: 60px;
  height: 60px;
  border-radius: 10px;
  object-fit: cover;
  background-color: #111827;
  border: 1px solid var(--border-color);
}

.tournament-details h3 {
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 6px;
  font-weight: 600;
  letter-spacing: normal;
  text-transform: none;
}

.tournament-details p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.region-badge {
  background-color: rgba(56, 189, 248, 0.1);
  color: var(--accent-blue);
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid rgba(56, 189, 248, 0.2);
}

.empty-msg {
  background-color: var(--bg-card);
  border: 1px dashed var(--border-color);
  padding: 32px;
  border-radius: 14px;
  color: var(--text-muted);
  text-align: center;
  font-size: 0.95rem;
}

/* Search Box & Dropdown */
.search-box-container {
  position: relative;
  max-width: 640px;
  margin-bottom: 28px;
}

.search-input {
  width: 100%;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 22px;
  color: var(--text-main);
  font-size: 1.05rem;
  outline: none;
  transition: all 0.25s ease;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
}

.search-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 20px var(--accent-blue-glow), inset 0 2px 4px rgba(0, 0, 0, 0.5);
}

.suggestions-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-top: 8px;
  max-height: 260px;
  overflow-y: auto;
  z-index: 100;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.8);
  animation: dropdownFade 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes dropdownFade {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.suggestion-item {
  padding: 14px 22px;
  cursor: pointer;
  color: var(--text-main);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border-color);
  transition: background 0.15s ease, color 0.15s ease;
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-blue);
}

/* Tournament Detail View */
.back-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--accent-blue);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 28px;
  padding: 10px 18px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.back-btn:hover {
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.3);
  transform: translateX(-3px);
}

.tracker-header {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-surface) 100%);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.tracker-title-area {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
}

.tracker-thumb {
  width: 80px;
  height: 80px;
  border-radius: 12px;
  object-fit: cover;
  background-color: #111827;
  border: 1px solid var(--border-color);
}

.tracker-title-area h2 {
  font-size: 1.7rem;
  margin-bottom: 8px;
  font-weight: 700;
}

.desc-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.tracker-meta-bar {
  display: flex;
  gap: 32px;
  font-size: 0.95rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.tracker-meta-bar strong {
  color: var(--text-main);
}

/* Sub Tabs */
.sub-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 14px;
}

.sub-tab {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.sub-tab:hover {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
}

.sub-tab.active {
  background: linear-gradient(135deg, var(--accent-blue) 0%, #0284c7 100%);
  color: #000000;
  border-color: var(--accent-blue);
  box-shadow: 0 4px 15px var(--accent-blue-glow);
  font-weight: 700;
}

/* Scoring & Rewards Cards */
.scoring-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  animation: fadeIn 0.3s ease-out;
}

.scoring-column {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.scoring-column h4 {
  font-size: 1.05rem;
  margin-bottom: 20px;
  color: var(--accent-blue);
  font-weight: 700;
}

.score-card-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.98rem;
}

.score-card-item:last-child {
  border-bottom: none;
}

.score-card-item.victory {
  color: var(--accent-green);
  font-weight: 600;
}

.score-points {
  font-weight: 700;
}

.no-prizes-state {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 60px;
  text-align: center;
}

.ghost-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.no-prizes-title {
  color: var(--text-muted);
  font-size: 1rem;
}

/* Leaderboard Table */
.standings-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  animation: fadeIn 0.3s ease-out;
}

.standings-table th, .standings-table td {
  padding: 16px 24px;
  text-align: left;
  font-size: 0.95rem;
}

.standings-table th {
  background-color: var(--bg-sidebar);
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border-color);
}

.standings-table tr {
  border-bottom: 1px solid var(--border-color);
  transition: background 0.2s ease;
}

.standings-table tr:last-child {
  border-bottom: none;
}

.standings-table tr:hover {
  background-color: rgba(56, 189, 248, 0.04);
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
  .main-content {
    margin-left: 0;
    padding: 24px;
  }
  .scoring-container {
    grid-template-columns: 1fr;
  }
}