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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Login Container */
.login-container {
    width: 100%;
    max-width: 500px;
    padding: 20px;
}

/* Login Form */
.login-form {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 50px 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    text-align: center;
}

.login-form h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 40px;
    color: #ffffff;
    letter-spacing: 1px;
}

/* Form Groups */
.form-group {
    margin-bottom: 25px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Form Controls */
.form-control {
    width: 100%;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    color: #ffffff;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #4CAF50;
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

/* Button */
.btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.btn:hover {
    background: linear-gradient(135deg, #45a049 0%, #4CAF50 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(76, 175, 80, 0.3);
}

/* Demo Accounts */
.demo-accounts {
    margin-top: 30px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    text-align: center;
}

.demo-accounts p {
    margin: 8px 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    line-height: 1.5;
}

.demo-accounts p:first-child {
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 15px;
    font-size: 16px;
}

.demo-accounts p:not(:first-child) {
    font-family: 'Courier New', monospace;
    background: rgba(0, 0, 0, 0.3);
    padding: 10px 15px;
    border-radius: 8px;
    margin: 10px 0;
    border-left: 4px solid #4CAF50;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        max-width: 100%;
        padding: 15px;
    }
    
    .login-form {
        padding: 40px 30px;
    }
    
    .login-form h2 {
        font-size: 28px;
        margin-bottom: 30px;
    }
    
    .form-control {
        padding: 14px 18px;
        font-size: 15px;
    }
    
    .btn {
        padding: 16px;
        font-size: 15px;
    }
    
    .demo-accounts {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .login-form {
        padding: 30px 20px;
    }
    
    .login-form h2 {
        font-size: 24px;
    }
    
    .form-control {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .btn {
        padding: 14px;
        font-size: 14px;
    }
    
    .demo-accounts p:not(:first-child) {
        padding: 8px 12px;
        font-size: 13px;
    }
}

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

.login-form {
    animation: fadeIn 0.6s ease-out;
}