:root {
  --primary-green: #187a60;
  --accent-gold: #cab540;
  --bg-color: #f2f2f2;
  --text-dark: #333333;
  --border-color: #dee2e6;
}

body {
  background-color: var(--bg-color);
  font-family: 'Segoe UI', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.login-box {
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
  width: 100%;
  max-width: 400px;
  box-sizing: border-box; /* Sesuai diskusi kita sebelumnya */
}

.logo-section {
  text-align: center;
  margin-bottom: 30px;
}

.logo-section p {
  color: var(--primary-green);
  font-weight: 600;
  margin-top: 10px;
}

.input-group {
  position: relative;
  margin-bottom: 20px;
}

.input-group .icon {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: #999;
  transition: color 0.3s ease;
}

.input-group input {
  width: 100%;
  padding: 12px 12px 12px 45px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 14px;
  box-sizing: border-box; /* Masuk ke dalam div */
  transition: all 0.3s ease;
}

.input-group input:focus {
  border-color: var(--primary-green);
  outline: none;
  box-shadow: inset 0 0 0 1px var(--primary-green); /* Border ke dalam */
}

.input-group input:focus + .icon {
  color: var(--primary-green);
}

.btn-login {
  width: 100%;
  padding: 12px;
  background-color: var(--primary-green);
  color: white;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.4s ease;
}

.btn-login:hover {
  background-color: #146650; /* Hijau lebih gelap */
  box-shadow: 0 5px 15px rgba(24, 122, 96, 0.3);
  transform: translateY(-2px);
}

.login-error {
  border: 2px solid #B33F33; /* Warna merah serasi */
  animation: shake 0.2s ease-in-out 0s 2;
}

@keyframes shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(5px); }
  75% { transform: translateX(-5px); }
  100% { transform: translateX(0); }
}