:root {
  /* Brazilian Theme 🇧🇷 */
  --primary-color: #009c3b; /* Bandeira Green */
  --secondary-color: #002776; /* Bandeira Blue */
  --highlight-color: #ffdf00; /* Bandeira Yellow */

  --bg-color: #f4f6f7;
  --card-bg: #ffffff;
  --text-color: #2c3e50;

  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(10px);
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
}

/* Common UI Elements */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
}

.input-field {
  width: 100%;
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(0, 0, 0, 0.2);
  color: white;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.input-field:focus {
  border-color: var(--primary-color);
}

.btn-primary {
  width: 100%;
  padding: 1rem;
  border-radius: 10px;
  border: none;
  background: var(--primary-color);
  color: white;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.btn-primary:hover {
  background: #27ae60;
}

.btn-primary:active {
  transform: scale(0.98);
}