:root {
  --primary: #0077c5; /* Intuit Blue */
  --primary-dark: #005a96;
  --secondary: #2ca01c; /* QuickBooks Green */
  --bg-light: #f4f7f9;
  --white: #ffffff;
  --text-main: #393a3d;
  --text-muted: #6a6c71;
  --border-color: #d4d7dc;
  --error: #d52b1e;
  --success: #2ca01c;
  --warning: #ef8d05;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --border-radius: 12px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-light);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: hidden;
  user-select: none;
}

#root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-container {
  flex: 1;
  max-width: 500px;
  margin: 0 auto;
  background-color: var(--white);
  min-height: 100vh;
  position: relative;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4 {
  font-weight: 700;
  color: var(--text-main);
}

button {
  cursor: pointer;
  border: none;
  border-radius: var(--border-radius);
  font-family: inherit;
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
  padding: 12px 24px;
}

.btn-primary:active {
  transform: scale(0.98);
  background-color: var(--primary-dark);
}

.card {
  background: var(--white);
  border-radius: var(--border-radius);
  padding: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

/* Animations */
@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.animate-slide-up {
  animation: slideUp 0.4s ease-out forwards;
}

/* Bottom Nav Spacing */
.content-padding {
  padding: 16px;
  padding-bottom: 100px;
}
