:root {
  --primary-color: #6c5ce7;
  --secondary-color: #a29bfe;
  --dark-bg: #121212;
  --dark-surface: #1e1e1e;
  --dark-text: #f0f0f0;
  --dark-text-secondary: #b0b0b0;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

.dark-theme {
  background-color: var(--dark-bg);
  color: var(--dark-text);
  min-height: 100vh;
}

main {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
}

h1, h2, h3 {
  color: var(--dark-text);
  margin-bottom: 1rem;
}

p {
  color: var(--dark-text-secondary);
}

.card {
  background-color: var(--dark-surface);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--box-shadow);
  transition: transform 0.2s;
  cursor: pointer;
}

.card:hover {
  transform: translateY(-5px);
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tab-btn {
  background-color: var(--dark-surface);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  color: var(--dark-text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  background-color: var(--primary-color);
  color: white;
}

.tab-btn:hover:not(.active) {
  background-color: #2a2a2a;
}

.tab-content {
  background-color: var(--dark-surface);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.tab-content.hidden {
  display: none;
}

.auth-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 100px);
}

.login-card {
  background-color: var(--dark-surface);
  border-radius: var(--border-radius);
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--box-shadow);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.5rem 0;
}

.auth-form input {
  padding: 0.75rem;
  border-radius: var(--border-radius);
  border: 1px solid #333;
  background-color: #2a2a2a;
  color: var(--dark-text);
}

.primary-btn {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 0.75rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color 0.2s;
}

.primary-btn:hover {
  background-color: #5c4bd6;
}

.profile-container {
  display: grid;
  gap: 2rem;
}

.profile-header {
  text-align: center;
  background-color: var(--dark-surface);
  padding: 2rem;
  border-radius: var(--border-radius);
}

.avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background-color: var(--secondary-color);
  margin: 0 auto 1rem;
}

.profile-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.profile-section {
  background-color: var(--dark-surface);
  padding: 1.5rem;
  border-radius: var(--border-radius);
}

@media (max-width: 768px) {
  .quick-links {
    grid-template-columns: 1fr;
  }
}