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

:root {
  --primary: #4a90e2;
  --primary-dark: #2e5c8a;
  --secondary: #f5f5f5;
  --danger: #e74c3c;
  --success: #27ae60;
  --text: #333;
  --text-light: #666;
  --border: #ddd;
  --spacing: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--text);
  background-color: #f8f9fa;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing);
}

.header {
  background: white;
  border-bottom: 1px solid var(--border);
  padding: var(--spacing) 0;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing);
  margin-top: var(--spacing);
}

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

.column {
  display: flex;
  flex-direction: column;
  gap: var(--spacing);
}

.card {
  background: white;
  border-radius: 8px;
  padding: var(--spacing);
  border: 1px solid var(--border);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.form-group {
  margin-bottom: var(--spacing);
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 14px;
}

.input-field {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.3s;
}

.input-field:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

textarea.input-field {
  resize: vertical;
  min-height: 100px;
}

.char-count {
  display: block;
  font-size: 12px;
  color: var(--text-light);
  margin-top: 4px;
}

.btn {
  padding: 10px 16px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
}

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

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

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-secondary {
  background-color: var(--secondary);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background-color: #e8e8e8;
}

.btn-block {
  width: 100%;
}

.error {
  color: var(--danger);
  font-size: 14px;
  padding: 8px;
  background-color: rgba(231, 76, 60, 0.1);
  border-radius: 4px;
  margin: var(--spacing) 0 0;
}

.stat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

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

.stat-label {
  font-size: 14px;
  color: var(--text-light);
}

.stat-value {
  font-size: 18px;
  font-weight: bold;
  color: var(--primary);
}

.notification-preview {
  background: #f0f0f0;
  border-radius: 8px;
  padding: var(--spacing);
  margin-top: 12px;
}

.preview-title {
  font-size: 16px;
  font-weight: bold;
  color: var(--text);
  margin-bottom: 8px;
}

.preview-body {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.5;
}

.status-message {
  position: fixed;
  bottom: var(--spacing);
  right: var(--spacing);
  padding: var(--spacing);
  border-radius: 4px;
  background-color: var(--success);
  color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  animation: slideIn 0.3s ease-in-out;
  max-width: 400px;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

h1 {
  font-size: 28px;
  margin-bottom: 8px;
}

h2 {
  font-size: 18px;
  margin-bottom: var(--spacing);
}

#authScreen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

#authScreen .container {
  width: 100%;
  max-width: 400px;
}

#authScreen h1 {
  color: white;
  text-align: center;
  margin-bottom: var(--spacing);
}

#authScreen .card {
  background: white;
}