/* Reset dasar */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #f5f7fa;
  color: #333;
  line-height: 1.6;
}

/* Container */
.login-container, .register-container {
  max-width: 500px;
  margin: 50px auto;
  padding: 30px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Header */
header {
  background: linear-gradient(135deg, #4b6cb7 0%, #182848 100%);
  color: white;
  padding: 15px 35px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  font-size: 1.8rem;
  font-weight: 600;
}

main {
  padding: 35px;
}

nav a {
  color: white;
  text-decoration: none;
  margin-left: 20px;
  font-size: 1rem;
  transition: opacity 0.3s;
}

nav a:hover {
  opacity: 0.8;
}

/* Form */
.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #555;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"] {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

input:focus {
  border-color: #4b6cb7;
  outline: none;
}

button {
  background: #4b6cb7;
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
  transition: background 0.3s;
}

button:hover {
  background: #3a5795;
}

.error {
  color: #e74c3c;
  background: #fdeded;
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 15px;
  font-size: 0.9rem;
}

/* Dashboard */
.welcome {
  background: white;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
  margin-bottom: 25px;
}

.welcome h2 {
  margin-bottom: 15px;
  color: #2c3e50;
}

.health-summary {
  display: flex;
  gap: 20px;
  margin-top: 15px;
}

.health-summary p {
  background: #f8f9fa;
  padding: 15px;
  border-radius: 8px;
  flex: 1;
  font-weight: 500;
}

.quick-guide {
  background: white;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
}

/* Responsif */
@media (max-width: 768px) {
  .login-container, .register-container {
    margin: 20px;
    padding: 20px;
  }
  
  header {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
  
  nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
  
  nav a {
    margin: 0;
  }
  
  .health-summary {
    flex-direction: column;
  }
}