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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background: #ffffff;
    color: #000000;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    background: #ffffff;
    border: 1px solid #e9ecef;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    color: #000000;
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: #6c757d;
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #000000;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    background: #ffffff;
    color: #000000;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #000000;
}

.login-btn {
    width: 100%;
    padding: 0.75rem;
    background: #000000;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.login-btn:hover {
    transform: translateY(-2px);
    background: #495057;
}

.login-btn:active {
    transform: translateY(0);
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.success-message {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.info-message {
    background: #cce7ff;
    color: #004085;
    border: 1px solid #b3d9ff;
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.signup-link {
    text-align: center;
    margin-top: 1.5rem;
    color: #6c757d;
    font-size: 0.9rem;
}

.signup-link a {
    color: #000000;
    text-decoration: none;
    font-weight: 600;
}

.signup-link a:hover {
    text-decoration: underline;
}