:root {
  --primary-color: #6200ee;
  --secondary-color: #03dac6;
  --background-color: #f5f5f5;
  --surface-color: #ffffff;
}

body {
  background-color: var(--background-color);
  font-family: 'Roboto', sans-serif;
  margin: 0;
  padding: 0;
}

.navbar {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem 2rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.note-card {
  background-color: var(--surface-color);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  transition: all 0.3s cubic-bezier(.25,.8,.25,1);
  position: relative;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  min-height: 150px;
}

.note-card:hover {
  box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
}

.note-title {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
  color: #333;
}

.note-content {
  font-size: 1rem;
  color: #666;
  white-space: pre-wrap;
  flex-grow: 1;
}

.note-footer {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: #999;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--secondary-color);
  color: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
  cursor: pointer;
  transition: transform 0.2s;
  border: none;
  font-size: 24px;
}

.fab:hover {
  transform: scale(1.1);
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 19px 38px rgba(0,0,0,0.30), 0 15px 12px rgba(0,0,0,0.22);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #555;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  box-sizing: border-box;
  font-family: inherit;
  font-size: 1rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: background 0.2s;
}

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

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

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
}