:root {
  --primary-red: #e63939;
  --dark-red: #c1121f;
  --accent-red: #f77f00;
  --light-red: #ffe5e5;
  --text: #1d1d1d;
  --text-light: #555;
  --bg: #fff;
  --card-bg: #ffffff;
  --border: #ddd;
}

body {
  background: linear-gradient(135deg, #fff 0%, #fff5f5 100%);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 640px;
  margin: 40px auto;
  padding: 0 20px;
}

header {
  text-align: center;
  padding: 40px 0 30px;
  border-bottom: 3px solid var(--primary-red);
}

header h1 {
  color: var(--primary-red);
  font-size: 2.4rem;
  margin: 0 0 10px 0;
  font-weight: 700;
}

header p {
  color: var(--text-light);
  font-size: 1.1rem;
}

.card, .box, form, .panel {
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(230, 57, 57, 0.12);
  border: 1px solid var(--border);
  padding: 35px;
  margin-bottom: 30px;
}

.btn, button, input[type="submit"], .button {
  background: var(--primary-red);
  color: white;
  border: none;
  padding: 14px 28px;
  font-size: 1.05rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn:hover, button:hover, input[type="submit"]:hover {
  background: var(--dark-red);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(193, 18, 31, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-red);
  border: 2px solid var(--primary-red);
}

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

input[type="text"], input[type="email"], input[type="password"], textarea, select {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid #ddd;
  border-radius: 10px;
  font-size: 1rem;
  transition: border 0.3s;
  box-sizing: border-box;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--primary-red);
  outline: none;
  box-shadow: 0 0 0 4px rgba(230, 57, 57, 0.15);
}

label {
  font-weight: 500;
  color: var(--text);
}

input[type="checkbox"] {
  accent-color: var(--primary-red);
  transform: scale(1.2);
}

.list-item {
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  transition: all 0.3s;
}

.list-item:hover, .list-item.selected {
  border-color: var(--primary-red);
  background: var(--light-red);
}

.message-success {
  background: #d4edda;
  color: #155724;
  border-left: 6px solid #28a745;
}

.message-error {
  background: #f8d7da;
  color: #721c24;
  border-left: 6px solid var(--primary-red);
}

footer {
  text-align: center;
  padding: 30px 0;
  color: var(--text-light);
  font-size: 0.9rem;
  border-top: 1px solid #eee;
  margin-top: 50px;
}

@media (max-width: 600px) {
  .container {
    margin: 20px auto;
    padding: 0 15px;
  }
  
  .card, .box, form, .panel {
    padding: 25px 20px;
  }
  
  header h1 {
    font-size: 2rem;
  }
}

a {
  color: var(--primary-red);
  text-decoration: none;
}

a:hover {
  color: var(--dark-red);
  text-decoration: underline;
}

footer.container {
    color: transparent !important;
    opacity: 0 !important;
    visibility: hidden !important;
    margin-top: 10px !important;
    margin-bottom: 10px !important;
    height: 1px !important;
    overflow: hidden !important;
}