/* Base styles matching the provided template */
body {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Source Code Pro', Consolas, 'Courier New', monospace;
  line-height: 1.5;
  min-height: 100vh;
  margin: 0 auto;
  padding: 20px;
  color: #e0e0e0;
  background-color: #0d1117;
}

h1 {
  color: #58a6ff;
  font-size: 26px;
  margin: 0 0 5px 0;
  font-weight: normal;
}

h1 a {
  color: inherit;
}

h2 {
  color: #c9d1d9;
  font-size: 16px;
  margin: 0 0 25px 0;
  font-weight: normal;
}

h3 {
  color: #58a6ff;
  font-size: 18px;
  margin: 35px 0 15px 0;
  font-weight: normal;
  border-bottom: 1px solid #21262d;
  padding-bottom: 5px;
}

h4 {
  color: #58a6ff;
  font-size: 16px;
  margin: 25px 0 10px 0;
  font-weight: normal;
}

h5 {
  color: #c9d1d9;
  font-size: 14px;
  margin: 20px 0 8px 0;
  font-weight: normal;
}

a {
  color: #58a6ff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  color: #1f6feb;
}

.container {
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
}

/* Navigation */
.nav {
  margin: 0 0 30px 0;
  padding: 0;
}

.nav a {
  margin-right: 18px;
  font-size: 15px;
}

/* Sections */
.section {
  margin: 0 0 35px 0;
}

/* News */
.news-item {
  margin: 0 0 16px 0;
}

.news-date {
  color: #8b949e;
  font-size: 13px;
  display: inline-block;
  width: 75px;
}

/* Rules */
.rules-list {
  padding-left: 22px;
  margin: 12px 0;
}

.rules-list li {
  margin: 7px 0;
  color: #c9d1d9;
}

/* Challenges */
.challenge {
  margin: 0 0 26px 0;
  padding: 0;
}

.challenge-title {
  font-weight: bold;
  font-size: 16px;
  margin: 0 0 4px 0;
}

.challenge-desc {
  margin: 0 0 6px 0;
  font-size: 14px;
  color: #b1bac4;
  line-height: 1.45;
}

.challenge-stats {
  font-size: 13px;
  color: #8b949e;
}

/* Hall of Fame Table */
.hof-table {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0;
  font-size: 14px;
}

.hof-table th {
  text-align: left;
  padding: 8px 5px;
  border-bottom: 1px solid #30363d;
  color: #58a6ff;
}

.hof-table td {
  padding: 8px 5px;
  border-bottom: 1px solid #21262d;
  color: #c9d1d9;
}

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

/* Footer */
footer {
  margin: 50px 0 0 0;
  font-size: 12px;
  color: #8b949e;
  text-align: center;
  border-top: 1px solid #21262d;
  padding-top: 15px;
}

/* Flash Messages */
.flash-messages {
  margin: 20px 0;
}

.flash-message {
  padding: 12px 16px;
  margin: 8px 0;
  border-radius: 6px;
  border: 1px solid;
}

.flash-success {
  background-color: #0d4429;
  border-color: #1a7f37;
  color: #3fb950;
}

.flash-error {
  background-color: #490202;
  border-color: #da3633;
  color: #f85149;
}

.flash-info {
  background-color: #0c2d6b;
  border-color: #1f6feb;
  color: #58a6ff;
}

/* Forms */
.form {
  max-width: 400px;
}

.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: flex;
  gap: 15px;
}

.form-row .form-group {
  flex: 1;
}

.form-label {
  display: block;
  margin-bottom: 5px;
  color: #c9d1d9;
  font-size: 14px;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 8px 12px;
  background-color: #0d1117;
  border: 1px solid #30363d;
  border-radius: 6px;
  color: #c9d1d9;
  font-family: inherit;
  font-size: 14px;
  box-sizing: border-box;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: #58a6ff;
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-error {
  color: #f85149;
  font-size: 12px;
  margin-top: 5px;
}

.form-help {
  color: #8b949e;
  font-size: 12px;
  margin-top: 5px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
  margin: 0;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 8px 16px;
  background-color: #238636;
  color: #ffffff;
  border: 1px solid #238636;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s;
}

.btn:hover {
  background-color: #2ea043;
  color: #ffffff;
  text-decoration: none;
}

.btn-primary {
  background-color: #238636;
  border-color: #238636;
}

.btn-secondary {
  background-color: #21262d;
  border-color: #30363d;
  color: #c9d1d9;
}

.btn-secondary:hover {
  background-color: #30363d;
  color: #c9d1d9;
}

.btn-danger {
  background-color: #da3633;
  border-color: #da3633;
}

.btn-danger:hover {
  background-color: #f85149;
}

.btn-small {
  padding: 4px 8px;
  font-size: 12px;
}

/* Challenge Detail */
.challenge-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 20px 0;
  padding: 15px;
  background-color: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
}

.meta-item {
  color: #c9d1d9;
  font-size: 14px;
}

.meta-item strong {
  color: #58a6ff;
}

.difficulty-beginner { color: #3fb950; }
.difficulty-easy { color: #a5f3fc; }
.difficulty-medium { color: #fbbf24; }
.difficulty-hard { color: #fb7185; }
.difficulty-expert { color: #dc2626; }

.connection-info {
  background-color: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
  padding: 15px;
  margin: 10px 0;
}

.connection-info code {
  color: #58a6ff;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 14px;
}

.file-list {
  list-style: none;
  padding: 0;
  margin: 10px 0;
}

.file-list li {
  margin: 5px 0;
  padding: 8px 12px;
  background-color: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
}

.solved-badge {
  background-color: #0d4429;
  color: #3fb950;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.challenge-solved {
  background-color: #0d4429;
  border: 1px solid #1a7f37;
  border-radius: 6px;
  padding: 15px;
  color: #3fb950;
  margin: 20px 0;
}

/* Profile */
.profile-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 20px 0;
  padding: 15px;
  background-color: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
}

.stat-item {
  color: #c9d1d9;
  font-size: 14px;
}

.stat-item strong {
  color: #58a6ff;
}

/* Admin Styles */
.admin-nav {
  margin: 20px 0;
  padding: 0;
  border-bottom: 1px solid #21262d;
}

.admin-nav a {
  display: inline-block;
  padding: 10px 15px;
  margin-right: 10px;
  color: #8b949e;
  border-bottom: 2px solid transparent;
}

.admin-nav a:hover {
  color: #c9d1d9;
  text-decoration: none;
}

.admin-nav a.nav-active {
  color: #58a6ff;
  border-bottom-color: #58a6ff;
}

.admin-header {
  margin: 20px 0;
  text-align: right;
}

.admin-table-container {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0;
  font-size: 14px;
}

.admin-table th {
  text-align: left;
  padding: 12px 8px;
  border-bottom: 2px solid #30363d;
  color: #58a6ff;
  background-color: #161b22;
}

.admin-table td {
  padding: 12px 8px;
  border-bottom: 1px solid #21262d;
  color: #c9d1d9;
}

.admin-table tr:hover {
  background-color: #161b22;
}

.status-active {
  color: #3fb950;
  font-weight: 500;
}

.status-inactive {
  color: #f85149;
  font-weight: 500;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

.stat-card {
  background-color: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
  padding: 20px;
  text-align: center;
}

.stat-number {
  font-size: 32px;
  font-weight: bold;
  color: #58a6ff;
  margin-bottom: 5px;
}

.stat-label {
  color: #8b949e;
  font-size: 14px;
}

.admin-form {
  max-width: 600px;
}

.form-actions {
  margin-top: 25px;
  display: flex;
  gap: 10px;
}

.action-buttons {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

/* Difficulty sections */
.difficulty-section {
  margin-bottom: 40px;
}

.difficulty-title {
  color: #58a6ff;
  font-size: 16px;
  margin: 0 0 15px 0;
  padding: 8px 0;
  border-bottom: 1px solid #21262d;
}

/* Terms sections */
.terms-section {
  margin-bottom: 35px;
}

/* Responsive */
@media (max-width: 600px) {
  .container {
    max-width: 100%;
    padding: 15px;
  }
  
  .form-row {
    flex-direction: column;
  }
  
  .challenge-meta, .profile-stats {
    flex-direction: column;
    gap: 10px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .nav a {
    margin-right: 12px;
    font-size: 14px;
  }
}