:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-card: #ffffff;
  --text-primary: #24292e;
  --text-secondary: #586069;
  --border-color: #e1e4e8;
  --accent-color: #0366d6;
  --accent-hover: #0256c7;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-hover: 0 3px 6px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.12);
  --success-color: #28a745;
  --error-color: #d73a49;
  --warning-color: #ffa500;
}

[data-theme="dark"] {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-card: #1c2128;
  --text-primary: #c9d1d9;
  --text-secondary: #8b949e;
  --border-color: #30363d;
  --accent-color: #58a6ff;
  --accent-hover: #4a96e8;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 3px 6px rgba(0, 0, 0, 0.6), 0 2px 4px rgba(0, 0, 0, 0.5);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
  z-index: 1000;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.app-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.last-searched {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.theme-toggle {
  background: var(--accent-color);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: background-color 0.2s ease;
}

.theme-toggle:hover {
  background: var(--accent-hover);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Search Section */
.search-section {
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

.search-box {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.search-input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 1rem;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.btn {
  padding: 0.75rem 2rem;
  background-color: var(--accent-color);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.btn:hover {
  background-color: var(--accent-hover);
}

.search-history-container {
  position: relative;
}

.search-history-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  display: block;
}

.search-history {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
}

/* Message */
.message {
  text-align: center;
  margin: 1rem 0;
  font-size: 1rem;
  font-weight: 500;
}

/* Profile Container */
.containerProfile {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

/* Card Left */
.cardLeft {
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  text-align: center;
}

.cardLeft img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 3px solid var(--border-color);
  margin-bottom: 1rem;
}

.cardLeft p {
  margin: 0.75rem 0;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.profile-link-btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1.5rem;
  background-color: var(--accent-color);
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-size: 0.875rem;
  transition: background-color 0.2s ease;
}

.profile-link-btn:hover {
  background-color: var(--accent-hover);
}

/* Card Right */
.cardRight {
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.stats-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background-color: var(--bg-secondary);
  padding: 1.5rem;
  border-radius: 6px;
  text-align: center;
  border: 1px solid var(--border-color);
}

.stat-card p:first-child {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.stat-card p:last-child {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent-color);
}

.bio-section {
  margin-top: 1.5rem;
}

.bio-section h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.bio-text {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.95rem;
}

.bio-text.truncated {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more-btn {
  background: none;
  border: none;
  color: var(--accent-color);
  cursor: pointer;
  font-size: 0.875rem;
  margin-top: 0.5rem;
  padding: 0;
  text-decoration: underline;
}

.read-more-btn:hover {
  color: var(--accent-hover);
}

/* Tabs */
.tabs-container {
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.tabs {
  display: flex;
  gap: 1rem;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.tab {
  padding: 0.75rem 1.5rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1rem;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s ease;
}

.tab.active {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
  font-weight: 500;
}

.tab:hover {
  color: var(--text-primary);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Repo List */
.repo-list {
  display: grid;
  gap: 1rem;
}

.repo-item {
  padding: 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: box-shadow 0.2s ease;
}

.repo-item:hover {
  box-shadow: var(--shadow-hover);
}

.repo-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
  text-decoration: none;
  display: inline-block;
}

.repo-name:hover {
  text-decoration: underline;
}

.repo-description {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.repo-stats {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.repo-stats span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.pagination button {
  padding: 0.5rem 1rem;
  background-color: var(--accent-color);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: background-color 0.2s ease;
}

.pagination button:hover:not(:disabled) {
  background-color: var(--accent-hover);
}

.pagination button:disabled {
  background-color: var(--text-secondary);
  cursor: not-allowed;
  opacity: 0.5;
}

.page-info {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--border-color) 50%, var(--bg-secondary) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
  border-radius: 4px;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

.skeleton-text {
  height: 1rem;
  margin: 0.5rem 0;
}

.skeleton-avatar {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  margin: 0 auto 1rem;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background-color: var(--bg-card);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: 6px;
  box-shadow: var(--shadow-hover);
  border-left: 4px solid var(--accent-color);
  min-width: 300px;
  animation: slideIn 0.3s ease;
}

.toast.success {
  border-left-color: var(--success-color);
}

.toast.error {
  border-left-color: var(--error-color);
}

.toast.warning {
  border-left-color: var(--warning-color);
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideOut {
  from {
    transform: translateX(0);
    opacity: 1;
  }

  to {
    transform: translateX(400px);
    opacity: 0;
  }
}

.toast.hiding {
  animation: slideOut 0.3s ease;
}

/* Welcome Banner */
.welcome-banner {
  background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
  color: white;
  padding: 1.5rem 2rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
  position: relative;
}

.welcome-banner h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.welcome-banner p {
  font-size: 0.95rem;
  opacity: 0.95;
  line-height: 1.5;
}

.close-banner {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  font-size: 1.25rem;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.close-banner:hover {
  background: rgba(255, 255, 255, 0.3);
}

.hidden {
  display: none;
}

/* Responsive */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  .header-left {
    flex-direction: column;
    text-align: center;
  }

  .container {
    padding: 1rem;
  }

  .containerProfile {
    grid-template-columns: 1fr;
  }

  .stats-container {
    grid-template-columns: 1fr;
  }

  .search-box {
    flex-direction: column;
  }

  .tabs {
    flex-wrap: wrap;
  }

  .toast-container {
    right: 10px;
    left: 10px;
  }

  .toast {
    min-width: auto;
  }
}