* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: #ffffff;
  color: #000000;
}

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

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
}

button {
  cursor: pointer;
  font-family: inherit;
}

.container {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 3rem;
}

/* Utility Classes */
.card {
  background: #fafafa;
  border: 1px solid #e0e0e0;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border-radius: 6px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.2s, border-color 0.2s;
}

.card:hover {
  border-color: #ccc;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
}

.btn {
  padding: 0.5rem 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-weight: normal;
  font-size: 0.95rem;
  cursor: pointer;
  background-color: #f5f5f5;
  color: #333;
  transition: background-color 0.2s;
}

.btn:hover {
  background-color: #e5e5e5;
}

.btn-primary {
  background-color: #5bc0de;
  border-color: #46b8da;
  color: white;
}

.btn-primary:hover {
  background-color: #31b0d5;
  border-color: #269abc;
}

.btn-success {
  background-color: #5cb85c;
  border-color: #4cae4c;
  color: white;
}

.btn-success:hover {
  background-color: #449d44;
  border-color: #398439;
}

.btn-danger {
  background-color: #d9534f;
  border-color: #d43f3a;
  color: white;
}

.btn-danger:hover {
  background-color: #c9302c;
  border-color: #ac2925;
}

.btn-secondary {
  background-color: #6c757d;
  border-color: #6c757d;
  color: white;
}

.btn-secondary:hover {
  background-color: #5a6268;
}

.input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input:focus {
  outline: none;
  border-color: #5bc0de;
  box-shadow: 0 0 0 3px rgba(91, 192, 222, 0.1);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #333;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

