* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    body {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        background: white;
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }
    .auth-container {
        background: white;
        border-radius: 20px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        padding: 40px;
        width: 100%;
        max-width: 450px;
        text-align: center;
    }
    .logo {
        margin-bottom: 10px;
    }
    .subtitle {
        color: #666;
        margin-bottom: 30px;
        font-size: 1.1rem;
    }
    .form-group {
        margin-bottom: 20px;
        text-align: left;
    }
    label {
        display: block;
        margin-bottom: 8px;
        color: #333;
        font-weight: 500;
    }
    input, select {
        width: 100%;
        padding: 15px;
        border: 2px solid #e1e5e9;
        border-radius: 10px;
        font-size: 16px;
        background: #f8f9fa;
    }
    .btn-primary {
        width: 100%;
        padding: 15px;
        background: #53AB81;
        color: white;
        border: none;
        border-radius: 10px;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        margin-top: 10px;
    }
    .btn-primary:disabled {
        opacity: 0.6;
        cursor: not-allowed;
    }
    .divider {
        margin: 30px 0;
        position: relative;
        text-align: center;
        color: #666;
    }
    .divider::before { content: ''; position: absolute; top: 50%; left: 0; right: 0; height: 1px; background: #e1e5e9; }
    .divider span { background: white; padding: 0 20px; }
    .auth-link {
        margin-top: 20px;
        color: #666;
    }
    .auth-link a {
        color: #53AB81;
        text-decoration: none;
    }
    .message {
        padding: 12px;
        border-radius: 8px;
        margin-bottom: 20px;
        display: none;
    }
    .message.error { background: #f8d7da; color: #721c24; }
    .message.success { background: #d4edda; color: #155724; }