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

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  overflow-x: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #ffffff;
  color: #000000;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: #f5f5f5;
}

#app {
  width: 100%;
  min-height: 100vh;
  background: #f5f5f5;
}

a {
  color: #c8102e;
  text-decoration: none;
}

a:hover {
  color: #13294b;
  text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  color: #13294b;
}

p {
  margin: 0;
  line-height: 1.6;
}

button {
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.3s ease;
}

input, textarea, select {
  font-family: inherit;
}


/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid #b1b3b3;
  border-top: 4px solid #c8102e;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Screen Management */
.screen {
  display: none;
  width: 100%;
  min-height: 100vh;
}

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

.fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.hidden { display: none !important; }
.visible { display: block !important; }