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

body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-family: 'Arial', sans-serif;
    min-height: 100vh;
    color: white;
}

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    text-align: center;
    min-width: 300px;
    max-width: 400px;
    width: 100%;
}

.auth-form h1 {
    margin: 0 0 10px 0;
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.auth-form h2 {
    margin: 0 0 30px 0;
    font-size: 1.5em;
    opacity: 0.9;
}

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

.form-group input {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 1em;
    backdrop-filter: blur(5px);
    box-sizing: border-box;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form-group input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

#authForm button {
    width: 100%;
    padding: 15px;
    margin: 10px 0;
    border: none;
    border-radius: 10px;
    font-size: 1.1em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

#submitBtn {
    background: linear-gradient(45deg, #4CAF50, #45a049);
    color: white;
}

#submitBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

#switchModeBtn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

#switchModeBtn:hover {
    background: rgba(255, 255, 255, 0.3);
}

#adminBtn {
    background: linear-gradient(45deg, #9C27B0, #7B1FA2);
    color: white;
}

#adminBtn:hover {
    background: linear-gradient(45deg, #8E24AA, #6A1B9A);
}

.auth-message {
    margin-top: 20px;
    padding: 10px;
    border-radius: 5px;
    font-weight: bold;
    min-height: 20px;
}

.auth-message.success {
    background: rgba(76, 175, 80, 0.3);
    color: #4CAF50;
}

.auth-message.error {
    background: rgba(244, 67, 54, 0.3);
    color: #f44336;
}